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‌SPECIFICATIONS

ACCESSORIES & EQUIPMENT

Object Detection and Pedestrian Protection - Volt

FASTENER SPECIFICATIONS

Reusable Threaded Fastener Tightening Specifications

SCHEMATIC WIRING DIAGRAMS

OBJECT DETECTION WIRING SCHEMATICS

Front Park Assist (UFQ)

Fig. 1: Front Park Assist (UFQ)

Courtesy of GENERAL MOTORS COMPANY

Rear Park Assist (UFQ)

Fig. 2: Rear Park Assist (UFQ)

Courtesy of GENERAL MOTORS COMPANY

Rearview Camera

Fig. 3: Rearview Camera

Courtesy of GENERAL MOTORS COMPANY

Comprehensive Safety - Camera and Module Power, Ground, and Controls (UEU/UHX/-UGN)

Fig. 4: Comprehensive Safety - Camera and Module Power, Ground, and Controls (UEU/UHX/-UGN) Courtesy of GENERAL MOTORS COMPANY

Side Object Detection (UKC)

Fig. 5: Side Object Detection (UKC)

Courtesy of GENERAL MOTORS COMPANY

Comprehensive Safety - Camera and Module Power, Ground and Controls (UEU/UHX/UGN)

Fig. 6: Comprehensive Safety - Camera and Module Power, Ground and Controls (UEU/UHX/UGN) Courtesy of GENERAL MOTORS COMPANY

Comprehensive Safety - Serial Data Camera, Module and Long Range Radar (UEU/UHX/UGN)

Fig. 7: Comprehensive Safety - Serial Data Camera, Module and Long Range Radar (UEU/UHX/UGN) Courtesy of GENERAL MOTORS COMPANY

DIAGNOSTIC INFORMATION AND PROCEDURES

DTC B094B OR B094C: LEFT SIDE OBJECT DETECTION CONTROL MODULE/RIGHT SIDE OBJECT DETECTION CONTROL MODULE

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptor

DTC B094B 00

Left Side Object Detection Control Module - Malfunction

DTC B094B 08

Left Side Object Detection Control Module - Performance - Signal Invalid

DTC B094B 45

Left Side Object Detection Control Module - Variant Not Programmed

DTC B094B 54

Left Side Object Detection Control Module - High Temperature

DTC B094B 58

Left Side Object Detection Control Module - Performance

DTC B094C 00

Right Side Object Detection Control Module - Malfunction

DTC B094C 08

Right Side Object Detection Control Module - Performance - Signal Invalid

DTC B094C 45

Right Side Object Detection Control Module - Variant Not Programmed

DTC B094C 54

Right Side Object Detection Control Module - High Temperature

DTC B094C 58

Right Side Object Detection Control Module - Performance

Circuit/System Description

The side object sensor - left or side object sensor - right can set this code if the module determines there is a fault due to the reason listed in the symptom byte.

Conditions for Running the DTC

Ignition ON.

Conditions for Setting the DTC

The control module has detected a malfunction.

Action Taken When the DTC Sets

The Side Blind Zone and Rear Cross Traffic Alert Systems will not function. The driver information center will display "Service Side Detection System".

Conditions for Clearing the DTC

A current DTC clears when the malfunction is no longer present.

A history DTC clears when the control module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.

Diagnostic Aids

If DTC B094B 58 or B094C 58 is set, check for anything that can interfere with the radar signal. Verify area in front of radar is clean of mud, ice, snow, etc. Also verify the fascia panels in front of the radar are damage-free and not obstructed by any add-on accessories such as emblems, etc.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Side Blind Zone Alert Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Vehicle ON.

2. Verify that B094B 45 or B094C 45 is not set.

If DTC is set

1. Program the appropriate B94 Side Object Sensor.

2. Verify the DTC does not set.

If the DTC sets, replace the appropriate B94 Side Object Sensor. If the DTC does not set

3. All OK.

If DTC is not set

3. Verify that B094B 00, B094C 00, B094B 08, B094C 08, B094B 54 or B094C 54 is not set.

If DTC is set

Replace the appropriate B94 Side Object Sensor.

If the DTC is not set

4. Verify that B094B 58 or B094C 58 is not set.

If DTC is set

Verify the area in front of the sensor is clean, unobstructed, and damage-free.

If not clean, unobstructed, and damage-free, clean or repair as necessary.

If clean, unobstructed, and damage-free, replace the appropriate B94 Side Object Sensor.

If DTC is not set

5. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Control Module References for control module replacement, programming, and setup

DTC B0954, B0955, B0956, OR B0957: PARKING ASSIST FRONT SENSOR CIRCUITS

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptors

DTC B0954

Parking Assist Front Sensor Left Corner Circuit

DTC B0955

Parking Assist Front Sensor Left Middle Circuit

DTC B0956

Parking Assist Front Sensor Right Middle Circuit

DTC B0957

Parking Assist Front Sensor Right Corner Circuit

For symptom byte information, refer to Symptom Byte List .

Diagnostic Fault Information

Circuit/System Description

The object sensors are 3-wire sensors that are used to determine the distance between the vehicle and an object of interest. The parking assist control module supplies 9 V to the object sensors via the 9 V reference circuit and provides ground via the low reference circuit. The parking assist control module triggers the sensors in a sequential loop. After each sensor transmits, the parking assist control module uses the sensor echo received through the signal circuit to calculate the distance and position of an object.

Conditions for Running the DTC

Vehicle ON

The park assist is activated. The activation takes place through putting in the reverse gear or through operating the park assist switch.

Conditions for Setting the DTC

B0954 01, B0955 01, B0956 01, or B0957 01

The parking assist control module has detected the voltage at the sensor circuit is greater than 11.5 V or the object sensor is not grounded.

B0954 06, B0955 06, B0956 06, or B0957 06

The parking assist control module has detected the voltage at the sensor circuit is less than 0.5 V.

B0954 08, B0955 08, B0956 08, or B0957 08

The parking assist control module has received an invalid signal.

B0954 21, B0955 21, B0956 21, or B0957 21

The object sensor determines no change in the position of an object while the vehicle is in motion.

B0954 3A, B0955 3A, B0956 3A, or B0957 3A

The parking assist control module determines the wrong sensor type is installed.

Action Taken When the DTC Sets

The parking assist is disabled.

The driver information center displays SERVICE PARK ASSIST.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Parking Assist Description and Operation (with Front and Rear Park Assist, UFQ)Parking Assist Description and Operation (with Parallel Parking or Automatic Parking Assist)

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Vehicle ON.

2. Verify that DTC B1405 is not set.

If the DTC is set

Refer to DTC B1405

If the DTC is not set

3. Verify that DTC B0954 01, B0955 01, B0956 01, B0957 01 B0954 21, B0955 21, B0956 21 or B0957 21

is not set.

If the DTC is set

1. Verify the B78 Front Object Sensors are not contaminated with snow, mud, dirt, slush, or ice. If contaminated, clean sensor.

If there is no contamination

2. Refer to Circuit/System Testing.

If the DTC is not set

4. Verify that DTC B0954 3A, B0955 3A, B0956 3A or B0957 3A is not set.

If the DTC is set

Replace the B78 Front Object Sensor with the correct sensor type.

If the DTC is not set

5. Vehicle ON, transmission in REVERSE.

6. Verify the scan tool Parking Assist System Status parameter displays Enabled.

If the Parking Assist System displays Disabled

Refer to Circuit/System Testing.

If the Parking Assist System displays Enabled

7. All OK.

Circuit/System Testing

1. Vehicle OFF, scan tool disconnected, disconnect the harness at the appropriate B78 Front Object Sensor. It may take up to 2 min for all vehicle systems to power down.

2. Test for less than 10 Ω between the low reference circuit terminal 2 and ground.

If 10 Ω or greater

1. Vehicle OFF, disconnect the harness connector X3 at the K182 Parking Assist Control Module.

2. Test for less than 2 Ω in the low reference circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω replace the K182 Parking Assist Control Module.

If less than 10 Ω

3. Vehicle ON.

4. Test for 7.5 - 10.5 V between the 9 V reference circuit terminal 1 and ground.

If less than 7.5 V

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module.

2. Test for infinite resistance between the 9 V reference circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance

3. Test for less than 2 Ω in the 9 V reference circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, replace the K182 Parking Assist Control Module.

If greater than 10.5 V

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module, Vehicle ON.

2. Test for less than 1 V between the 9 V reference circuit and ground. If 1 V or greater, repair the short to voltage on the circuit.

If less than 1 V, replace the K182 Parking Assist Control Module.

If between 7.5 - 10.5 V

5. Test for 7.5 - 9.5 V between the signal circuit terminal 2 and ground.

If less than 7.5 V

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module.

2. Test for infinite resistance between the signal circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance

3. Test for less than 2 Ω in the signal circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, replace the K182 Parking Assist Control Module.

If greater than 9.5 V

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module, Vehicle ON.

2. Test for less than 1 V between the signal circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit.

If less than 1 V, replace the K182 Parking Assist Control Module.

If between 7.5 - 9.5 V

6. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair. Refer to Advanced Parking Assist Alarm Sensor Replacement

Refer to Control Module References for parking assist control module replacement, programming and setup

DTC B0958, B0959, B0960, OR B0961: PARKING ASSIST REAR SENSOR CIRCUITS

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptors

DTC B0958

Parking Assist Rear Sensor Left Corner Circuit

DTC B0959

Parking Assist Rear Sensor Left Middle Circuit

DTC B0960

Parking Assist Rear Sensor Right Middle Circuit

DTC B0961

Parking Assist Rear Sensor Right Corner Circuit

For symptom byte information, refer to Symptom Byte List .

Diagnostic Fault Information

Circuit/System Description

The parking assist sensors are 3-wire sensors that are used to determine the distance between the vehicle and an object of interest. The Parking Assist Control Module supplies 9 V to the parking assist sensors via the 9 V reference circuit and provides ground via the low reference circuit. The Parking Assist Control Module triggers the sensors in a sequential loop. After each sensor transmits, the Parking Assist Control Module uses the sensor echo received through the signal circuit to calculate the distance and position of an object.

Conditions for Running the DTC

Ignition ON/Vehicle in Service Mode

The parking assist is activated. The activation takes place through putting the vehicle in reverse.

Conditions for Setting the DTC

B0958 01, B0959 01, B0960 01, or B0961 01

The Parking Assist Control Module has detected the voltage at the sensor circuit is greater than 11.5 V or the object sensor is not grounded.

B0958 02, B0959 02, B0960 02, or B0961 02

The Parking Assist Control Module has detected sensor circuit is shorted to ground.

B0958 04, B0959 04, B0960 04, or B0961 04

The Parking Assist Control Module has detected the voltage at the sensor circuit is less than 0.5 V.

B0958 08, B0959 08, B0960 08, or B0961 08

The Parking Assist Control Module has received an invalid signal.

B0958 18, B0959 18, B0960 18, or B0961 18

The Parking Assist Control Module has received an invalid signal.

B0958 22, B0959 22, B0960 22 or B0961 22

The object sensor determines no change in the position of an object while the vehicle is in motion.

B0958 3A, B0959 3A, B0960 3A, or B0961 3A

The Parking Assist Control Module determines the wrong sensor type is installed.

B0958 3B, B0955 3B, B0956 3B, or B0957 3B

The Parking Assist Control Module determines the sensor failed a self test.

Action Taken When the DTC Sets

The parking assist is disabled.

The driver information center displays "Park Assist Temporarily Unavailable" or "Service Park Assist".

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Parking Assist Description and Operation (with Rear Park Assist, UD7)Parking Assist Description and Operation (with Front and Rear Park Assist, UFQ)Parking Assist Description and Operation (with Parallel Parking or Automatic Parking Assist)

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Ignition On/Vehicle in Service Mode.

2. Verify that DTC B1405 is not set.

If the DTC is set

Refer to DTC B1405

If the DTC is not set

3. Verify that DTC B0958 3A, DTC B0958 3B, B0959 3A, B0959 3B, B0960 3A, B0960 3B, B0961 3A or

B0961 3B is not set.

If the DTC is set

Replace the B306 Parking Assist Sensor.

If the DTC is not set

4. Verify that DTC B0958, B0959, B0960, or B0961 is not set.

If the DTC is set

1. Check the B306 Parking Assist Sensor for contamination with snow, mud, dirt, slush, or ice. If contaminated, clean sensor.

If there is no contamination

2. Refer to Circuit/System Testing.

If the DTC is not set

5. Ignition On/Vehicle ON, transmission in R.

6. Verify the scan tool Parking Assist System Status parameter displays Enabled.

If the Parking Assist System displays Disabled

Refer to Circuit/System Testing.

If the Parking Assist System displays Enabled

7. All OK.

Circuit/System Testing

1. Ignition OFF/Vehicle OFF, scan tool disconnected, disconnect the harness at the appropriate B306 Parking Assist Sensor. It may take up to 2 minutes for all vehicle systems to power down.

2. Test for less than 10 Ω between the low reference circuit terminal 3 and ground.

If 10 Ω or greater

1. Ignition OFF/Vehicle OFF, disconnect the harness connector X2 at the K182 Parking Assist Control Module.

2. Test for less than 2 Ω in the low reference circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω replace the K182 Parking Assist Control Module.

If less than 10 Ω

3. Ignition On/Vehicle in Service Mode.

4. Test for 7.8 - 10.2 V between the 9 V reference circuit terminal 1 and ground.

If less than 7.8 V

1. Ignition OFF/Vehicle OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module.

2. Test for infinite resistance between the 9 V reference circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance

3. Test for less than 2 Ω in the 9 V reference circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, replace the K182 Parking Assist Control Module.

If greater than 10.2 V

1. Ignition OFF/Vehicle OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module.

2. Test for less than 1 V between the 9 V reference circuit and ground. If 1 V or greater, repair the short to voltage on the circuit.

If less than 1 V, replace the K182 Parking Assist Control Module.

If between 7.8 - 8.2 V

5. Test for 7 - 12.0 V between the signal circuit terminal 2 and ground.

If less than 10.3 V

1. Ignition OFF/Vehicle OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module.

2. Test for infinite resistance between the signal circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance

3. Test for less than 2 Ω in the signal circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, replace the K182 Parking Assist Control Module.

If greater than 12.0 V

1. Ignition OFF/Vehicle OFF, disconnect the X2 harness connector at the K182 Parking Assist Control Module, ignition ON/Vehicle in Service Mode.

2. Test for less than 1 V between the signal circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit.

If less than 1 V, replace the K182 Parking Assist Control Module.

If between 10.3 - 12.0 V

6. Test or replace the appropriate B306 Parking Assist Sensor.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Rear Parking Assist Alarm Sensor Replacement

Refer to Control Module References for control module replacement, programming and setup.

DTC B0967 OR B0968: PARKING ASSIST ON/OFF SWITCH

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptor

DTC B0967

Parking Assist On/Off Switch Circuit

DTC B0968

Parking Assist On/Off Switch Indicator Circuit

Diagnostic Fault Information

Circuit/System Description

The parking assist can be activated/deactivated by pressing the parking assist switch. By engaging the reverse gear the parking assist can also be activated. By subsequently pressing the parking assist switch the parking assist can be disabled again.

The indicator in the parking assist switch shows the status of the parking assist. If the lamp is ON, the parking assist is activated.

Conditions for Running the DTC

Ignition ON

The parking assist is activated. The activation takes place by putting in the reverse gear or by pressing the parking assist switch.

Conditions for Setting the DTC

B0967 02

The parking assist control module has detected a short to ground.

B0968 01

The parking assist control module has detected a short to battery.

B0968 06

The parking assist control module has detected a short to ground or open.

Action Taken When the DTC Sets

The parking assist is disabled.

The driver information center displays SERVICE PARK ASSIST.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Parking Assist Description and Operation (with Parallel Parking or Automatic Parking Assist)Parking Assist Description and Operation (with Rear Park Assist, UD7)Parking Assist Description and Operation (with Front and Rear Park Assist, UFQ)

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Vehicle ON.

2. Verify that DTC B0967 02 is not set.

If the DTC is set

Refer to Parking Assist Switch Malfunction.

If the DTC is not set

3. Verify that DTC B0968 01 or B0968 06 is not set.

If the DTC is set

Refer to Parking Assist Switch Indicator Malfunction.

If the DTC is not set

4. Activate and deactivate the parking assist switch and verify the scan tool Park Assist Switch parameter changes between Active and Inactive.

If the Parking Assist Switch parameter does not change between Active and Inactive

Refer to Circuit/System Testing.

If the Parking Assist Switch parameter changes between Active and Inactive

5. All OK.

Circuit/System Testing

Parking Assist Indicator Malfunction

1. Vehicle OFF, disconnect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel. It may take up to 2 min for all vehicle systems to power down.

2. Test for less than 1.6 - 3.6 V between the control circuit terminal 6 and ground.

If less than 1.6 V

1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module.

2. Test for infinite resistance between the control circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance

3. Test for less than 2 Ω in the control circuit end to end.

If 2 Ω or greater, repair the open or high resistance in the circuit. If less than 2 Ω, refer to Interior Backlighting Malfunction .

If greater than 3.6 V

1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module, ignition on.

2. Test for less than 1 V between the control circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit.

If less than 1 V, refer to Interior Backlighting Malfunction .

If between 1.6 - 3.6 V

3. Connect a test lamp between the control circuit terminal 7 and signal circuit terminal 6.

4. Verify the test lamp turns On and Off when commanding the Parking Assist Switch On and Off with a scan tool.

If the test lamp is always OFF

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module, Vehicle ON.

2. Test for less than 1 V between the control circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit If less than 1 V

3. Test for less than 2 Ω in the control circuit end to end.

If 2 Ω or greater, repair the open or high resistance in the circuit. If less than 2 Ω, replace the K182 Parking Assist Control Module.

If the test lamp is always ON

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module.

2. Test for infinite resistance between the control circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit If infinite resistance, replace the K182 Parking Assist Control Module. If the test lamp turns ON and OFF

5. All OK.

Parking Assist Switch Malfunction

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel. It may take up to 2 minutes for all vehicle systems to power down.

2. Test for less than 10 Ω between the ground circuit terminal 10 and ground.

If 10 Ω or greater

1. Ignition OFF.

2. Test for less than 2 Ω in the ground circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit

If less than 2 Ω, repair the open/high resistance in the ground connection.

If less than 10 Ω

3. Ignition ON.

4. Verify the scan tool Park Assist Switch parameter is Inactive.

If not Inactive

1. Ignition OFF, disconnect the harness connector X1 at the K182 Parking Assist Control Module.

2. Test for infinite resistance between the signal circuit terminal 2 and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K182 Parking Assist Control Module. If Inactive

5. Install a 3 A fused jumper wire between the signal circuit terminal 2 and ground.

6. Verify the scan tool Park Assist Switch parameter is Active.

If not Active

1. Ignition OFF, disconnect the harness connector X1 at the K182 Parking Assist Control Module, ignition ON.

2. Test for less than 1 V between the signal circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V.

3. Test for less than 2 Ω in the signal circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, replace the K182 Parking Assist Control Module.

If Active

7. Test or replace the S48D Multifunction Switch 2 - Instrument Panel.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Vehicle Stability Control System Switch Replacement

Refer to Control Module References for control module replacement, programming and setup.

DTC B096B: PARKING ASSIST SWITCH PARALLEL PARKING CIRCUIT

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptor

DTC B096B

Parking Assist Switch Parallel Parking Circuit

For symptom byte information, refer to Symptom Byte List .

Diagnostic Fault Information

Circuit/System Description

The parallel parking assist can be activated/deactivated by pressing the parallel parking assist switch.

Conditions for Running the DTC

Vehicle ON

The parallel parking assist is activated. The activation takes place through pressing the parallel parking assist switch.

Conditions for Setting the DTC

The parking assist control module has detected a short to ground.

Action Taken When the DTC Sets

The parallel parking assist is disabled.

An indicator in the driver information center shows the parking assistance is not available.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Parking Assist Description and Operation (with Parallel Parking or Automatic Parking Assist)

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Testing

1. Vehicle OFF and all vehicle systems OFF, disconnect the harness connector at the S48D Multifunction Switch 2 - Instrument Panel. It may take up to 2 min for all vehicle systems to power down.

2. Test for less than 10 Ω between the ground circuit terminal 10 and ground.

If 10 Ω or greater

1. Vehicle OFF.

2. Test for less than 2 Ω in the ground circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the ground circuit.

If less than 2 Ω, repair the open/high resistance in the ground connection.

If less than 10 Ω

3. Vehicle ON.

4. Verify the scan tool Advanced Parking Assist Switch parameter is Inactive.

If not Inactive

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module.

2. Test for infinite resistance between the S48D Multifunction Switch 2 - Instrument Panel signal circuit terminal 1 and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K182 Parking Assist Control Module.

If Inactive

5. Install a 3 A fused jumper wire between the signal circuit terminal 1 and ground.

6. Verify the scan tool Advanced Parking Assist Switch parameter is Active.

If not Active

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module, vehicle ON.

2. Test for less than 1 V between the S48D Multifunction Switch 2 - Instrument Panel signal circuit terminal 1 and ground.

If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V.

3. Test for less than 2 Ω in the signal circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, replace the K182 Parking Assist Control Module.

If Active

7. Test or replace the S48D Multifunction Switch 2 - Instrument Panel.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair. Refer to Vehicle Stability Control System Switch Replacement

Refer to Control Module References for control module replacement, programming and setup.

DTC B096C OR B096D: PARKING ASSIST SIDE SENSOR FRONT CIRCUITS

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptors

DTC B096C

Parking Assist Side Sensor Left Front Circuit

DTC B096D

Parking Assist Side Sensor Right Front Circuit

For symptom byte information, refer to Symptom Byte List .

Diagnostic Fault Information

Circuit/System Description

The object sensors are 3-wire sensors that are used to determine the distance between the vehicle and an object of interest. The parking assist control module supplies 9 V to the object sensors via the 9 V reference circuit and provides ground via the low reference circuit. The parking assist control module triggers the sensors in a sequential loop. After each sensor transmits, the parking assist control module uses the sensor echo received though the signal circuit to calculate the distance and position of an object.

Conditions for Running the DTC

Vehicle in Service Mode

The parallel parking assist is activated. The activation takes place through operating the parallel parking assist switch.

Conditions for Setting the DTC

B096C 01 or B096D 01

The parking assist control module has detected the voltage at the sensor circuit is too high.

B096C 06 or B096D 06

The parking assist control module has detected the voltage at the sensor circuit is too low.

B096C 08 or B096D 08

The parking assist control module has received an invalid signal.

B096C 21 or B096D 21

The object sensor determines no change in the position of an object while the vehicle is in motion.

B096C 3A or B096D 3A

The parking assist control module determines the wrong sensor type is installed.

Action Taken When the DTC Sets

The parallel parking assist is disabled.

An indicator in the driver information center shows the parking assistance is not available.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Parking Assist Description and Operation (with Rear Park Assist, UD7)Parking Assist Description and Operation (with Front and Rear Park Assist, UFQ)Parking Assist Description and Operation (with Parallel Parking or Automatic Parking Assist)

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Vehicle in Service Mode.

2. Verify that DTC B1405 is not present.

If the DTC is set

Refer to DTC B1405

If the DTC does not set

3. Verify that DTC B096C 01 or B096D 01 is not present.

If the DTC is set

Check the appropriate sensor for contamination with mud, ice or snow. If no contamination is diagnosed, refer to Circuit/System Testing.

If the DTC does not set

4. Verify that DTC B096C 3A or B096D 3A is not present.

If the DTC is set

Replace the appropriate sensor with a sensor by correct sensor type.

If the DTC does not set

5. Verify that DTC B096C 21 or B096D 21 is not present.

If the DTC is set

Check the appropriate sensor for contamination with mud, ice or snow. If no contamination is diagnosed, replace the appropriate sensor.

If the DTC does not set

6. All OK.

Circuit/System Testing

1. Vehicle OFF for 30 s, disconnect the harness connector at the appropriate B94 Side Object Sensor - Front. It may take up to 2 min for all vehicle systems to power down.

2. Test for less than 10 Ω between the low reference circuit terminal 3 and ground.

If 10 Ω or greater

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module.

2. Test for less than 2 Ω in the low reference circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, replace the K182 Parking Assist Control Module.

If less than 10 Ω

3. Vehicle in Service Mode, engine running.

4. Test for 7.5 - 10.5 V between the 9 V reference circuit terminal 1 and ground.

If less than 7.5 V

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module.

2. Test for infinite resistance between the 9 V reference circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance

3. Test for less than 2 Ω in the 9 V reference circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, replace the K182 Parking Assist Control Module.

If greater than 10.5 V

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module, Vehicle in Service Mode.

2. Test for less than 1 V between the 9 V reference circuit and ground. If 1 V or greater, repair the short to voltage on the circuit.

If less than 1 V, replace the K182 Parking Assist Control Module.

If between 7.5 - 10.5 V

5. Test for 7.5 - 9.5 V between the signal circuit terminal 2 and ground.

If less than 7.5 V

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module.

2. Test for infinite resistance between the signal circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance

3. Test for less than 2 Ω in the signal circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, replace the K182 Parking Assist Control Module.

If greater than 9.5 V

1. Vehicle OFF, disconnect the harness connector at the K182 Parking Assist Control Module, Vehicle in Service Mode.

2. Test for less than 1 V between the signal circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit.

If less than 1 V, replace the K182 Parking Assist Control Module

If between 11.5 - 13.5 V

6. Test or replace the appropriate B94 Side Object Sensor - Front.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair. Refer to Advanced Parking Assist Alarm Sensor Replacement

Refer to Control Module References for control module replacement, programming and setup.

DTC B0987: VEHICLE DIRECTION CAMERA INDICATOR CIRCUIT

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptor

DTC B0987 01

Vehicle Direction Camera Indicator Circuit Short to Battery

DTC B0987 06

Vehicle Direction Camera Indicator Circuit Low Voltage/Open

Diagnostic Fault Information

Circuit/System Description

The lane departure warning is enabled and disabled through a switch located in the left steering wheel controls switch. When enabled, the frontview camera module will illuminate the indicator located in the switch.

Conditions for Running the DTC

Ignition ON.

Conditions for Setting the DTC

The frontview camera module has detected a short to battery or open/high resistance in the control circuit.

Action Taken When the DTC Sets

Lane departure warning is disabled.

SERVICE FRONT CAMERA is displayed on the driver information center.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Lane Departure Warning Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.

2. Verify that DTC B356A is not set.

If the DTC is set

Refer to DTC B356A.

If the DTC is not set

3. Verify the lane departure warning indicator turns ON and OFF while pressing and releasing the lane departure warning switch.

If the indicator does not turn ON and OFF

Refer to Circuit/System Testing.

If the indictor turns ON and OFF

4. All OK.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the S70L Steering Wheel Controls Switch - Left, ignition ON.

NOTE: Verify interior lighting dimming is turned all the way up.

2. Test for 6.2 - 12.0 V between the dimming control circuit terminal 4 and ground.

If less than 6.2 V

1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module.

2. Test for infinite resistance between the control circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance

3. Test for less than 2 Ω in the control circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit. If less than 2 Ω, refer to Interior Backlighting Malfunction .

If greater than 12.0 V

1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module, ignition ON.

2. Test for less than 1 V between the control circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit.

If less than 1 V, refer to Interior Backlighting Malfunction .

If between 6.2 - 12.0 V

3. Connect a test lamp between the control circuit terminal 5 and B+.

4. Verify the test lamp turns ON and OFF when commanding the Lane Departure Warning Indicator parameter ON and OFF with a scan tool.

If the test lamp is always OFF

1. Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module, ignition ON.

2. Test for less than 1 V between the control circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V

3. Ignition OFF.

4. Test for less than 2 Ω in the control circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit. If less than 2 Ω, replace the K109 Frontview Camera Module.

If the test lamp is always ON

1. Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module.

2. Test for infinite resistance between the control circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K109 Frontview Camera Module.

If the test lamp turns ON and OFF

5. Test or replace the S70L Steering Wheel Controls Switch - Left.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Cruise Control Switch Replacement - Steering Wheel Controls Switch - Left replacement. Refer to Control Module References for control module replacement, programming and setup.

DTC B1011: SYSTEM DISABLED INFORMATION STORED

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptor

DTC B1011

System Disabled Information Stored

Circuit/System Description

The front view camera module permanently monitors the serial data bus for error messages. When a malfunction is detected by the front view camera module, the system will be disabled and an error message will be stored in the front view camera module disable history buffer which is used to store information about the front camera features that are disabled.

Conditions for Running the DTC

Ignition ON

Front view camera enabled

Conditions for Setting the DTC

The front view camera module detects a malfunction.

Action Taken When the DTC Sets

The front view camera module is disabled.

The front view camera module disable history buffer stores information why the system was disabled.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Diagnostic Aids

The front view camera module disable history buffers are used to store information about the front view camera module features that are disabled. The Buffers will only update if the disable condition changes.

Example: If the data received from the steering wheel angle sensor is Invalid across many ignition cycles then it will only appear in 1 history buffer and not all history buffers. If this condition is the current reason why the front view camera module is disabled then it will be set in front view camera module disable history buffer 1. If a new reason occurs, such as vehicle speed validity is invalid, then the invalid steering wheel angle sensor fault will shift into disable history buffer 2 and vehicle speed validity invalid will be in disable history buffer 1. Since there are only 4 disable history buffers, the invalid steering wheel angle sensor will age out if 4 other disable reasons occur since the last invalid steering wheel angle sensor event occurred. Front view camera module disable history buffer 1 contains the current reason that one of the front view camera module features is disabled.

The front view camera module disable history buffers can display the following values: Lane Departure Warning Indicator Malfunction

Lane Departure Warning Switch Malfunction Camera Obstructed

Accelerator Pedal Position Out of Range Driven Wheel Speed Signal Invalid

Non-Driven Wheel Speed Signal Invalid

Brake Pedal Moderate Travel Signal Invalid Brake Pedal Initial Travel Position Achieved

Lost Communication with Steering Wheel Angle Sensor Module

Invalid Data Received From Steering Wheel Angle Sensor Module Forward Collision Alert Switch Malfunction

Clutch Pedal Position (CPP) Sensor Performance Clutch Pedal Position (CPP) Sensor Performance Transmission Gear Engaged

Acceleration Sensor Longitudinal Signal

Invalid Data Received From Yaw Rate Sensor Module Power Mode Controlled by Backup Device

System Power Mode Overvoltage

Undervoltage Undefined

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Forward Collision Alert Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Verify no DTC is set.

If a DTC is present, diagnose this first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .

2. Verify the scan tool Vehicle Direction Camera System parameter is NORMAL.

If not the specified value, refer to Lane Departure Warning System Malfunction, and Forward Collision Alert System Malfunction.

3. Verify the scan tool Vehicle Direction Camera Calibration Status parameter is CALIBRATED.

If not the specified value, calibrate the K109 Frontview Camera Module. Refer to Front View Camera Module Learn .

Circuit/System Testing

NOTE: Perform the Circuit/System Verification before proceeding with the Circuit/System Testing.

1. Verify the scan tool Front View Camera Module Disable History displays no current malfunction. Refer to Diagnostic Aids.

If a current malfunction is displayed, diagnose the system that sets the malfunction.

2. If no malfunction is displayed in the Front View Camera Module Disable History, refer to Lane Departure Warning System Malfunction, and Forward Collision Alert System Malfunction.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Control Module References for front view camera module programming and setup

DTC B1015: VEHICLE IDENTIFICATION NUMBER INFORMATION

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptor

DTC B1015

Vehicle Identification Number Information

For symptom byte information, refer to Symptom Byte List .

Circuit/System Description

When the ignition is turned ON, the advanced parking assist control module and the frontview camera module receive the vehicle identification number (VIN) from the body control module (BCM). The modules will

compare the VIN received to the VIN stored in memory.

Conditions for Running the DTC Ignition voltage is between 9 - 16 V. Conditions for Setting the DTC

The stored VIN does not match the received VIN.

Action Taken When the DTC Sets

The parking assist system or the lane departure warning system is disabled. The driver information center may display a system service message.

Conditions for Clearing the DTC

The stored VIN matches the VIN stored in the body control module.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Lane Departure Warning Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.

2. Verify that DTC B1015 is not set.

If the DTC is set

1. Program the control module that set the DTC.

2. Verify that DTC B1015 is not set.

If the DTC is set, replace the control module that set the DTC. If the DTC is not set

3. All OK

If the DTC is not set

3. All OK

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair

Refer to Control Module References for control module replacement, programming, and setup.

DTC B101D: ELECTRONIC CONTROL UNIT HARDWARE (DTC SET IN K109 FRONTVIEW CAMERA MODULE)

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptor

DTC B101D

Electronic Control Unit Hardware

DTC B101D 3C

Electronic Control Unit Hardware Performance Internal Communications Failure For symptom byte information, refer to Symptom Byte List

Circuit/System Description

The internal fault detection is handled inside the device. The symptom byte information is for engineering reference only. No external circuit diagnosis is involved.

Conditions for Running the DTC

Ignition ON.

Conditions for Setting the DTC

B101D

The frontview camera module has detected an internal malfunction

B101D 3C

The frontview camera module has detected a software malfunction

Action Taken When the DTC Sets

Lane departure warning is disabled

SERVICE LANE DEPARTURE SYSTEM is displayed on the DIC.

Conditions for Clearing the DTC

The condition responsible for setting the DTC no longer exists.

A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Forward Collision Alert Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Verify that DTC B101D symptom byte 3C is not set as current.

If DTC B101D symptom byte 3C is set as current

Reprogram the K109 Frontview Camera Module

If DTC B101D symptom byte 3C is not set as current

2. Verify that DTC B101D is not set as current.

If DTC B101D is set as current

Replace the K109 Frontview Camera Module

If DTC B101D is not set as current

3. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Control Module References for control module replacement, setup, and programming

DTC B127B: REARVIEW CAMERA INPUT SIGNAL CIRCUIT MISSING REFERENCE

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptors

B127B 2B

Rearview Camera Input Signal Circuit Missing Reference

Diagnostic Fault Information

Circuit/System Description

When the vehicle is placed in reverse with the engine running, a video signal is sent from the rearview camera to the human machine interface control module. If the human machine interface control module does not see a signal from the camera it will set B127B 2B and display "Service Rear Vision System". The rearview camera is powered with ignition voltage and does not have a reverse signal circuit.

Conditions for Running the DTC

The vehicle must be in reverse with the engine running.

Conditions for Setting the DTC

B127B 2B

Signal from the rearview camera not received by the Human Interface Machine Control Module for 2.5 s.

Action Taken When the DTC Sets

The human machine interface control module commands the driver information center to display "Service Rear Vision System".

The human machine interface control module stores the DTC in memory.

Conditions for Clearing the DTC

The condition responsible for setting the DTC no longer exists.

A history DTC will clear once 40 malfunction-free ignition cycles have occurred.

Diagnostic Aids

A poor video image can be caused by ice, snow, and mud buildup on the lens of the rearview camera. Also, extreme lighting conditions can affect performance, such as operating in the dark or with bright sunlight shining on the camera. Extreme high or low temperatures can also affect the image quality. An open in the shield of the video signal circuit can also cause a distorted screen.

Terminal fretting or incorrectly seated connectors can cause a poor image displayed condition. Check the circuit terminals for fretting or incorrectly seated connector. If the condition is intermittent or cannot be duplicated, disconnect the connectors and add Nyogel lubricant 760G. This procedure will correct the high resistance condition due to terminal fretting corrosion.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Rear Vision Camera Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

NOTE: If the condition is intermittent or cannot be duplicated, disconnect the

connectors and add Nyogel lubricant 760G. This procedure will correct the high resistance condition due to terminal fretting corrosion.

1. Vehicle ON.

2. Verify that DTC B2545 is not set.

If the DTC is set

Refer to DTC B2545 .

If the DTC is not set

3. Verify the rearview camera has no debris on the lens and that the bezel and bezel seal are not damaged.

If debris is found on the lens

Clean the lens. If the lens, bezel, or bezel seal are damaged, replace as necessary.

If no debris on the lens

4. Vehicle ON, transmission in R.

5. Verify the backup lamps are illuminated.

If the backup lamps are not illuminated

Refer to Backup Lamps Malfunction .

If the backup lamps are illuminated

6. Verify a clear rear vision image is displayed on the P17 Info Display Module.

If a clear image is not displayed

Refer to Circuit/System Testing.

If a clear image is displayed

7. All OK.

Circuit/System Testing

NOTE: Circuit/System Verification must be performed before Circuit/System Testing.

Under normal operating conditions the Human Interface Machine Control Module will become very hot. The module should be allowed to cool down prior to removal for any service procedure.

1. Vehicle OFF, disconnect the harness connector at the B87 Rearview Camera. It may take up to 2 min for all vehicle systems to power down.

2. Test for less than 10 Ω between the ground circuit terminal 4 and ground.

If 10 Ω or greater

1. Vehicle OFF.

2. Test for less than 2 Ω in the ground circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, repair the open/high resistance in the ground connection.

If less than 10 Ω

3. Vehicle ON.

4. Verify a test lamp illuminates between the ignition circuit terminal 5 and ground.

If the test lamp does not illuminate and the circuit fuse is good

1. Vehicle OFF.

2. Test for less than 2 Ω in the ignition circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, verify the fuse is OK and there is voltage at the fuse. Refer to Power Mode Mismatch .

If the test lamp does not illuminate and the circuit fuse is open

1. Vehicle OFF.

2. Test for infinite resistance between the ignition circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the B87 Rearview Camera.

If the test lamp illuminates

5. Vehicle OFF, disconnect the X2 harness connector at the K74 Human Machine Interface Control Module, vehicle ON.

6. Test for less than 1 V between the signal circuit terminal listed below and ground: B87 Rearview Camera signal (+) circuit terminal 5

B87 Rearview Camera signal (-) circuit terminal 6

If 1 V or greater

Repair the short to voltage on the circuit.

If less than 1 V

7. Test for infinite resistance between the signal circuit terminal listed below and ground: B87 Rearview Camera signal (+) circuit terminal 5

B87 Rearview Camera signal (-) circuit terminal 6

If less than infinite resistance

Repair the short to ground on the circuit.

If infinite resistance

8. Test for less than 2 Ω in the signal (+) circuit end to end.

If 2 Ω or greater

Repair the open/high resistance in the circuit.

If less than 2 Ω

9. Test for less than 2 Ω in the signal (-) circuit end to end.

If 2 Ω or greater

Test the signal circuit for an open/high resistance.

If less than 2 Ω

10. Replace the B87 Rearview Camera.

11. Vehicle ON, transmission in R,

12. Verify a clear rear vision image is displayed on the P17 Info Display Module.

If a clear rear vision image is not displayed

Replace the K74 Human Machine Interface Control Module.

If a clear rear vision image is displayed

13. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Rearview Driver Information Camera Replacement

Refer to Control Module References for control module replacement, programming and setup.

DTC B1405: CONTROL MODULE VOLTAGE REFERENCE OUTPUT 2 CIRCUIT

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptors

DTC B1405 02

Control Module Voltage Reference Output 2 Circuit Short to Ground

DTC B1405 03

Control Module Voltage Reference Output 2 Circuit Low Voltage

DTC B1405 07

Control Module Voltage Reference Output 2 Circuit High Voltage

Diagnostic Fault Information

Circuit/System Description

The object sensors are 3-wire sensors that are used to determine the distance between the vehicle and an object of interest. The parking assist control module supplies 9 V to the object sensors via the object sensor supply voltage circuit and provides ground via the object sensor low reference circuit. The parking assist control module triggers the sensors in a sequential loop. After each sensor transmits, the parking assist control module uses the sensor echo received through the object sensor signal circuit to calculate the distance and position of an object.

Conditions for Running the DTC

Ignition ON

Transmission in REVERSE

Conditions for Setting the DTC

B1405 02

The parking assist control module has detected the object sensor supply voltage circuit is shorted to ground.

B1405 03

The parking assist control module has detected the object sensor supply voltage circuit is low.

B1405 07

The parking assist control module has detected the object sensor supply voltage circuit is high.

Action Taken When the DTC Sets

The parking assist is disabled.

The driver information center displays SERVICE PARK ASSIST.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Parking Assist Description and Operation (with Rear Park Assist, UD7)Parking Assist Description and Operation (with Front and Rear Park Assist, UFQ)Parking Assist Description and Operation (with Parallel Parking or Automatic Parking Assist)

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Testing

1. Ignition OFF, disconnect the X2 and X3 harness connectors at the K41 Front and Rear Parking Assist Control Module.

2. Test for infinite resistance between the 12 V reference circuit terminal 4 X2 and ground.

If less than infinite resistance

1. Ignition OFF, disconnect the harness connector at each of the B78 Rear Object Sensors.

2. Test for infinite resistance between the 12 V reference circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If less than 2 Ω, replace the appropriate B78 Rear Object Sensor.

If infinite resistance

3. Test for infinite resistance between the 12 V reference circuit terminal 1 X3 and ground.

If less than infinite resistance

1. Ignition OFF, disconnect the harness connector at each of the B78 Front Object Sensors.

2. Test for infinite resistance between the 12 V reference circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If less than 2 Ω, replace the appropriate B78 Front Object Sensor.

If infinite resistance

4. Ignition ON.

5. Test for less than 1 V between the 12 V reference circuit terminal 4 X2 and ground.

If greater than 1 V

1. Ignition OFF, disconnect the harness connector at each of the B78 Rear Object Sensors.

2. Test for less than 1 V between the 12 V reference circuit and ground. If greater than 1 V, repair the short to voltage on the circuit.

If less than 1 V, replace the appropriate B78 Front Object Sensor.

If less than 1 V

6. Test for less than 1 V between the 12 V reference circuit terminal 1 X3 and ground.

If greater than 1 V

1. Ignition OFF, disconnect the harness connector at each of the B78 Front Object Sensors.

2. Test for less than 1 V between the 12 V reference circuit and ground. If greater than 1 V, repair the short to voltage on the circuit.

If less than 1 V, replace the appropriate B78 Front Object Sensor.

If less than 1 V

7. Connect the X2 and X3 harness connector at the K41 Front and Rear Parking Assist Control Module, ignition ON.

8. Verify DTC B1405 is not set.

If DTC B1405 is set

1. Ignition OFF, disconnect the harness connector at each of the B78 Object Sensors.

2. Verify DTC B1405 is not set. If DTC B1405 is set

Replace the K41 Front and Rear Parking Assist Control Module.

If DTC B1405 is not set.

3. Verify the DTC B1405 does not set while connecting the harness connector at each B78 Object Sensor, one at a time.

If DTC B1405 does set

Replace the B78 Object Sensor that was connected immediately before DTC B1405.

If DTC B1405 does not set.

9. All OK.

If DTC B1405 is not set.

10. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Rear Parking Assist Alarm Sensor Replacement

Refer to Control Module References for control module replacement, programming and setup

DTC B356A: VEHICLE DIRECTION WARNING SWITCH CIRCUIT SHORT TO GROUND

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptors

DTC B356A 02

Vehicle Direction Warning Switch Circuit Short to Ground

Diagnostic Fault Information

Circuit/System Description

The Vehicle Direction Warning Switch DTC detects a short to ground on the circuit that contains the lane departure warning and forward collision setting switches. The lane departure warning feature is enabled and disabled through the lane departure switch located in the left steering wheel controls switch. When enabled, the frontview camera module will illuminate the indicator located in the switch. The forward collision alert distance is adjustable using the forward collision switch located in the left steering wheel controls switch. The setting is shown in the driver information center.

Conditions for Running the DTC

Ignition ON

Conditions for Setting the DTC

The frontview camera module has detected a short to ground for more than 10 s.

Action Taken When the DTC Sets

Lane departure and forward collision warning features are disabled. Service Front Camera is displayed on the driver information center.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Lane Departure Warning Description and Operation

Forward Collision Alert Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.

2. Verify the scan tool Lane Departure Warning Switch Status parameter while pressing and releasing the lane departure warning switch. The parameter should change between Open and Closed.

If the parameter does not change

Refer to Circuit/System Testing.

If the parameter changes

3. Verify the driver information center displays and adjusts forward collision alert setting while repeatedly pressing and releasing the forward collision switch. The setting should change cycle between far, medium, near, and off.

If the display does not change

Refer to Circuit/System Testing.

If the display changes

4. All OK.

Circuit/System Testing

1. Ignition OFF, remove the ignition key, open the driver door, disconnect the scan tool, all vehicle systems OFF, this may take up to 2 min. Disconnect the harness connector at the S70L Steering Wheel Controls

Switch - Left.

2. Test for less than 10 Ω between the ground circuit terminal 7 and ground.

If 10 Ω or greater

1. Test for less than 2 Ω in the ground circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, repair the open/high resistance in the ground connection.

If less than 10 Ω

3. Ignition ON.

4. Verify the scan tool Lane Departure Warning Switch Status parameter is Open.

If not Open

1. Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module.

2. Test for infinite resistance between the signal circuit terminal 2 at the S70L Steering Wheel Controls Switch - Left and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K109 Frontview Camera Module.

If Open

5. Reconnect the harness at S70L Steering Wheel Controls Switch - Left. Ignition ON.

6. Verify the scan tool Lane Departure Warning Switch Status parameter while pressing and releasing the vehicle direction warning switch. The parameter should change between Open and Closed.

If the parameter does not change

Test or replace the S70L Steering Wheel Controls Switch - Left.

If the parameter changes

7. All OK.

Component Test

Static Test

1. Ignition OFF, disconnect the harness connector at the S70L Steering Wheel Controls Switch - Left.

2. Test for infinite resistance between the control circuit terminal 2 and ground circuit terminal 7.

If less than infinite resistance

Replace the S70L Steering Wheel Controls Switch - Left.

If infinite resistance

3. Test for 1.0k - 1.5k Ω between the control circuit terminal 2 and ground circuit terminal 7 while pressing forward collision alert switch.

If not between 1.0k - 1.5k Ω

Replace the S70L Steering Wheel Controls Switch - Left.

If between 1.0k - 1.5k Ω

4. Test for 3.8k - 5.8k Ω between the control circuit terminal 2 and ground circuit terminal 7 while pressing lane departure warning switch.

If not between 3.8k - 5.8k Ω

Replace the S70L Steering Wheel Controls Switch - Left.

If between 3.8k - 5.8k Ω

5. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Cruise Control Switch Replacement - Steering Wheel Controls Switch - Left replacement. Refer to Control Module References for module replacement, programming and setup.

DTC B390C: LONG RANGE RADAR SENSOR MODULE

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptor

DTC B390C

Long Range Radar Sensor Module

Circuit/System Description

After replacement, the radar sensor module - long range must complete an alignment procedure. The alignment procedure can be completed by driving the vehicle for approximately 30 min.

Conditions for Running the DTC

Module alignment procedure started. Vehicle operating on the road.

Conditions for Setting the DTC

The radar sensor module - long range was unable to complete alignment process within approximately 30 min of drive time.

Action Taken When the DTC Sets

The radar sensor module - long range is disabled.

Any systems that rely on data from the radar sensor module - long range are disabled. A service message may be displayed on the driver information center.

Conditions for Clearing the DTC

The radar sensor module - long range is successfully aligned.

Diagnostic Aids

The radar sensor module - long range must be securely mounted. Verify it is secured properly in it's mount.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Active Safety System Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.

2. Verify DTC B390C is not set

If the DTC is set

1. Perform the Radar Sensor Module - Long Range Learn procedure.

2. Verify DTC B390C is not set after the calibration procedure has been completed.

If the DTC is set after calibration, replace the B233B Radar Sensor Module - Long Range. If the DTC is not set after calibration

3. All OK.

If DTC B390C 66 is not set

3. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Control Module References for radar sensor module - long range replacement, programming, and setup.

DTC B390D: FRONTVIEW CAMERA MODULE INCORRECT MOUNTING

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptor

DTC B390D 66

Frontview Camera Module Incorrect Mounting

Circuit/System Description

The frontview camera module has determined that it is not properly mounted.

Conditions for Running the DTC Vehicle operating on the road. Conditions for Setting the DTC

The frontview camera module was unable to see the road ahead.

Action Taken When the DTC Sets

The frontview camera module is disabled. The Active Safety System is disabled.

Service Driver Assist is displayed on the driver information center and/or heads up display.

Conditions for Clearing the DTC

The frontview camera module is successfully aligned.

Diagnostic Aids

The frontview camera module needs to be securely mounted. Verify it is secured properly in it's mount.

The frontview camera module needs to have a clear field of vision to the road ahead. Check for anything that can impair the camera's vision.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Forward Collision Alert Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.

2. Verify there are no DTCs set, except for DTC B101E 4B in the B233B Radar Sensor Module - Long Rage or K109 Frontview Camera Module.

If other DTCs are set

Refer to Diagnostic Trouble Code (DTC) List - Vehicle .

If no other DTCs are set

NOTE: Before conducting alignment, verify that the K109 Frontview Camera Module will not have difficulty seeing the lines on the road. If the view of the K109 Frontview Camera Module is blocked with mud, dirt, snow, ice, or slush, if the windshield is damaged, or if weather limits visibility, such as while driving in fog, rain, or snow conditions, the calibration procedure may not be able to be completed.

3. Perform the calibration procedure. Refer to Front View Camera Module Learn.

4. Verify DTC B390D 66 is not set

If DTC B390D 66 is set

Replace and calibrate the K109 Frontview Camera Module.

If DTC B390D 66 is not set

5. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Control Module References for frontview camera module replacement, programming, and setup.

DTC P15F6: FRONT OBJECT DETECTION CONTROL MODULE TORQUE REQUEST SIGNAL MESSAGE COUNTER INCORRECT

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptors

DTC P15F6

Front Object Detection Control Module Torque Request Signal Message Counter Incorrect

Circuit/System Description

The Frontview Camera Module communicates with the Engine Control Module (ECM), requesting engine speed or torque reduction as necessary.

Conditions for Running the DTC

Engine running.

Conditions for Setting the DTC

The ECM detects that the engine speed and torque modification messages from the Frontview Camera Module are either corrupted or intermittently missing.

Action Taken When the DTC Sets

The Frontview Camera Module sends a serial data message to display the appropriate indicator message The Frontview Camera Module features are unavailable.

Conditions for Clearing the DTC

The condition for the DTC is no longer present.

The engine control module clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

Diagnostic Aid

This is an informational DTC set by the engine control module. It is set to provide an indication that the Frontview Camera Module will not be able to perform as intended. Diagnose any other DTCs first. During normal diagnostic and/or repair verification technicians may find that a "Service Driver Assist System" message may be displayed by the Frontview Camera Module. Do not replace the Frontview Camera Module for this condition.

If the Service Driver Assist System message is displayed with no DTCs set, perform the following steps:

1. Remove the key from the ignition, open and close the driver's door to turn off retained accessory power, and wait 60 s.

2. Ignition ON, if the Service Driver Assist message is still present, operate the vehicle at speeds greater than 15 km/h (10 mph) to complete the self test. The Frontview Camera Module should request the message to turn off.

3. If the telltales remain on with no DTCs set after the drive cycle, disconnect the battery for at least 60 s, then reconnect the battery.

4. Operate the vehicle at speeds greater than 40 km/h (25 mph), the Frontview Camera Module should request all indicators to turn off.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Lane Departure Warning Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

NOTE: DTC P15F6 is an informational DTC.

Diagnose all other K20 Engine Control Module DTCs prior to DTC P15F6.

1. Verify there are no other DTCs set in the K20 Engine Control Module and that there are no communication DTCs set in the vehicle.

If any DTCs are set

Refer to Diagnostic Trouble Code (DTC) List - Vehicle

If no DTCs are set

2. Clear DTCs and operate the vehicle in the conditions that the customer experienced.

3. Verify DTC P15F6 does not set.

If the DTC sets

Replace K109 Frontview Camera Module

If the DTC does not set

4. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Control Module References for control module replacement, programming, and setup.

SYMPTOMS - OBJECT DETECTION

NOTE: The following steps must be completed before using the symptom tables:

1. Perform the Diagnostic System Check - Vehicle before using the Symptom Tables in order to verify that all of the following are true:

There are no DTCs set.

The control module can communicate via the serial data link.

2. Review the system operation in order to familiarize yourself with the system functions. Refer to:

Cross Traffic Alert Description and Operation

Forward Collision Alert Description and Operation Lane Departure Warning Description and Operation

Parking Assist Description and Operation (with Rear Park Assist, UD7)Parking Assist Description and Operation (with Front and Rear Park Assist, UFQ)Parking Assist Description and Operation (with Parallel Parking or Automatic Parking Assist)

Rear Vision Camera Description and Operation Side Blind Zone Alert Description and Operation

Visual/Physical Inspection

Inspect for aftermarket devices which may affect the operation of the system. Refer to Checking Aftermarket Accessories .

Inspect the easily accessible or visible system components for obvious damage or conditions which may cause the symptom.

This system can use various sensors that need to be clean in order to function properly. Make sure to check the following sensors for obstructions:

Parking assist sensors located in the rear bumper cover

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Symptom List

Forward Collision Alert System Malfunction Lane Departure Warning System Malfunction Parking Assist System Malfunction

Rear Vision Camera System Malfunction

Rear Cross Traffic Alert System Malfunction Side Blind Zone Alert System Malfunction

FORWARD COLLISION ALERT SYSTEM MALFUNCTION

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

DTC Descriptor

DTC B0987 01

Vehicle Direction Camera Indicator Circuit Short to Battery

DTC B0987 06

Vehicle Direction Camera Indicator Circuit Low Voltage/Open

Diagnostic Fault Information

Circuit/System Description

The lane departure warning is enabled and disabled through a switch located in the left steering wheel controls switch. When enabled, the frontview camera module will illuminate the indicator located in the switch.

Conditions for Running the DTC

Ignition ON.

Conditions for Setting the DTC

The frontview camera module has detected a short to battery or open/high resistance in the control circuit.

Action Taken When the DTC Sets

Lane departure warning is disabled.

SERVICE FRONT CAMERA is displayed on the driver information center.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Lane Departure Warning Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Ignition ON.

2. Verify that DTC B356A is not set.

If the DTC is set

Refer to DTC B356A.

If the DTC is not set

3. Verify the lane departure warning indicator turns ON and OFF while pressing and releasing the lane departure warning switch.

If the indicator does not turn ON and OFF

Refer to Circuit/System Testing.

If the indictor turns ON and OFF

4. All OK.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the S70L Steering Wheel Controls Switch - Left, ignition ON.

NOTE: Verify interior lighting dimming is turned all the way up.

2. Test for 6.2 - 12.0 V between the dimming control circuit terminal 4 and ground.

If less than 6.2 V

1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module.

2. Test for infinite resistance between the control circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance

3. Test for less than 2 Ω in the control circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit. If less than 2 Ω, refer to Interior Backlighting Malfunction .

If greater than 12.0 V

1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module, ignition ON.

2. Test for less than 1 V between the control circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit.

If less than 1 V, refer to Interior Backlighting Malfunction .

If between 6.2 - 12.0 V

3. Connect a test lamp between the control circuit terminal 5 and B+.

4. Verify the test lamp turns ON and OFF when commanding the Lane Departure Warning Indicator parameter ON and OFF with a scan tool.

If the test lamp is always OFF

1. Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module, ignition ON.

2. Test for less than 1 V between the control circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V

3. Ignition OFF.

4. Test for less than 2 Ω in the control circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit. If less than 2 Ω, replace the K109 Frontview Camera Module.

If the test lamp is always ON

1. Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module.

2. Test for infinite resistance between the control circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K109 Frontview Camera Module.

If the test lamp turns ON and OFF

5. Test or replace the S70L Steering Wheel Controls Switch - Left.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Cruise Control Switch Replacement - Steering Wheel Controls Switch - Left replacement. Refer to Control Module References for control module replacement, programming and setup.

PARKING ASSIST SYSTEM MALFUNCTION

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

Circuit/System Description

The ultrasonic parking assist system is designed to identify and notify the driver of an object in the vehicle's path when moving reverse at speeds of less than 8 km/h (5 MPH). The distance and location of the object is determined by four object sensors, located in the rear bumper. The parking assist system will notify the driver using an audible signal through the radio.

Diagnostic Fault Information

Circuit/System Description

The parking assist system is enabled and disabled through the parking assist switch. When enabled, the parking assist indicator will illuminate.

The switch and indicator are connected to the front and rear parking assist control module. The front and rear parking assist control module supplies a reference voltage to the parking assist switch. When the switch is pressed, the signal circuit is grounded. The front and rear parking assist control module can control the park assist indicator by grounding the control circuit to illuminate the LED which indicates that the system is enabled.

The front and rear parking assist control module supplies a reference voltage and a low reference to the object sensors. The sensors will return a signal based on the reflections from objects within range of the sensors.

When an object is detected, the front and rear parking assist control module will send serial data to the radio to

provide an audible alert.

Diagnostic Aids

The following is a brief description of potential causes for a disable condition which may aid in diagnosis:

Manual Disable - The parking assist system has been disabled through the parking assist switch or audio system personalization menu.

Hitch/Object Attached - The front and rear parking assist control module is detecting an object that is attached to the vehicle. Common items such as a hitch receiver, trailer, or a bicycle rack may cause this concern. Additionally, damage to the rear of the vehicle or a misaligned sensor may cause this concern. If the vehicle is damaged in a manner that causes the sensor to detect the bumper itself, the front and rear parking assist control module will interpret this as an attached object and disable the system. Carefully inspect the bumper, bumper mounting surface, and sensor retainers before continuing with normal diagnosis. After the detected cause has been addressed the vehicle must be driven at speed greater than 40 km/h (25 mph).

Reverse Overspeed - The vehicle is travelling too fast in reverse at speeds of greater than 8 km/h (5 mph). Inhibit - The front and rear parking assist control module has lost or received invalid GMLAN signal(s).

Sensor Disturbance - An outside interference is causing sensor movement. Such interference may be caused a heavy pounding, like that of a nearby jackhammer, or large changes in pressure, such as a large truck air brakes.

Sensor Ring Time - If the sensor fails its own diagnostic initialization the front and rear parking assist control module will set this error. After the detected cause has been addressed the vehicle must be driven at speed greater than 40 km/h (25 mph). The following is a list of reasons this cause may have set:

One or more of the sensors may be blocked by snow, mud, ice, or other debris. This might happen after going through a car wash in cold weather.

Silicone insulator surrounding sensor maybe missing, cut, or twisted.

Improperly installed sensor, sensor maybe be crooked due to a tight wire harness. One or more of the sensors may be scratched or the paint maybe chipped.

Excessive paint thickness on a sensor may cause an excessive sensor ring time. When replacing or refinishing a sensor, do not apply an excessive amount of paint or clear coat.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Parking Assist Description and Operation (with Rear Park Assist, UD7)Parking Assist Description and Operation (with Front and Rear Park Assist, UFQ)Parking Assist Description and Operation (with Parallel Parking or Automatic Parking Assist)

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Vehicle ON.

2. Verify the Parking Assist Control Module Parking Assist Switch scan tool parameter changes between Active and Inactive while pressing and releasing the parking assist switch.

If the parameter does not change between Active and Inactive

Refer to Circuit/System Testing - Parking Assist Switch Circuit Malfunction.

If the parameter changes between Active and Inactive

3. Verify the parking assist switch indicator turns On and Off while commanding the Parking Assist Control Module Parking Assist Switch LED On and Off with a scan tool.

If the indicator does not turn ON and OFF

Refer to Circuit/System Testing - Parking Assist Switch Indicator Circuit Malfunction.

If the indicator does turn ON and OFF

4. Transmission in R.

5. Verify the Parking Assist Control Module Calculated Transmission Range scan tool parameter is Reverse.

If the parameter is not Reverse

Refer to Backup Lamps Malfunction .

If the parameter is Reverse

6. Transmission in R.

7. Verify the scan tool Parking Assist System Status parameter displays Enabled.

If the parameter is not Enabled

Refer to Diagnostic Aids to determine the cause.

If the parameter is Enabled

8. Vehicle ON, transmission in R for 5 s, then transmission in Drive, no objects near the front or rear of vehicle, verify there are no beeping tones for park assist.

If there are park assist beeping tones

Inspect the front park assist senors for proper installation and verify they are clean of debris.

If there are no park assist beeping tones

9. Vehicle ON, transmission in R, no objects near the front or rear of vehicle, verify there are no beeping tones for park assist.

If there are park assist beeping tones

Inspect the rear park assist senors for proper installation and verify they are clean of debris.

If there are no park assist beeping tones

10. All OK.

Circuit/System Testing

Parking Assist Switch Circuit Malfunction

1. Vehicle OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console. It may take up to 2 minutes for all vehicle systems to power down.

2. Test for less than 10 Ω between the ground circuit terminal 1 and ground.

If 10 Ω or greater

1. Vehicle OFF.

2. Test for less than 2 Ω in the ground circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, repair the open/high resistance in the ground connection.

If less than 10 Ω

3. Vehicle ON.

4. Verify the scan tool Parking Assist Switch Status parameter is inactive.

If not Inactive

1. Vehicle OFF, disconnect the harness connector at the K41 Front and Rear Parking Assist Control Module.

2. Test for infinite resistance between the control circuit terminal 5 and ground. If less than infinite resistance, repair the short to ground on the circuit.

If infinite resistance, replace the K41 Front and Rear Parking Assist Control Module.

If Inactive

5. Test for less than 1 V between the control circuit terminal 5 and ground.

If 1 V or greater

Repair the short to voltage on the circuit.

If less than 1 V

6. Connect a test lamp between the control circuit terminal 6 and the ground circuit terminal 1.

7. Verify that a test lamp turns On and Off when Commanding the Parking Assist Switch On and Off with a scan tool.

If the test lamp is always OFF

1. Vehicle OFF, disconnect the harness connector at the K41 Front and Rear Parking Assist Control

Module

2. Test for infinite resistance between the control circuit and ground.

If less than infinite resistance, repair the short to ground in the circuit. If infinite resistance

3. Test for less than 2 Ω in the control circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, replace the K41 Front and Rear Parking Assist Control Module.

If the test lamp is always ON

1. Vehicle OFF, disconnect the harness connector at the K41 Front and Rear Parking Assist Control Module, vehicle in Service Mode.

2. Test for less than 1 V between the control circuit and ground. If 1 V or greater, repair the short to voltage on the circuit.

If less than 1 V, replace the K41 Front and Rear Parking Assist Control Module

If the test lamp turns ON and OFF

8. All OK.

Parking Assist Switch Indicator Circuit Malfunction

1. Vehicle OFF, disconnect the harness connector at the S48E Multifunction Switch - Center Console, vehicle in Service Mode.

2. Test for greater than 11 V between terminal 6 and ground.

If less than 11 V

Test the voltage circuit for a short to ground or an open/high resistance.

If greater than 11 V

3. Command the Park Assist Switch LED output control ON with the scan tool. Test for greater than 11 V between the control circuit terminal 6 and the ground circuit terminal 1.

If less than 11 V

Test the signal circuit for an open/high resistance.

If greater than 11 V

4. Command the Park Assist Switch Indicator Off with the scan tool.

5. Test for less than 1 V between the terminal 6 and ground.

If 1 V or greater

Test the signal circuit for a short to voltage.

6. If all circuits test normal, replace the S48E Multifunction Switch - Center Console.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Vehicle Stability Control System Switch Replacement Refer to Advanced Parking Assist Alarm Sensor Replacement Refer to Rear Parking Assist Alarm Sensor Replacement

Refer to Control Module References for control module replacement, programming and setup

PARALLEL PARKING ASSIST SYSTEM MALFUNCTION

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

Diagnostic Fault Information

Circuit/System Description

The parallel parking assist is activated/deactivated by pressing the parking assist switch at speeds below 30 km/h (18 mph). The activated parallel parking assist then searches for an appropriate parking spot. If a spot is

detected, feedback is given to the driver through the indicator in the driver information center. The driver accepts the decision by stopping the vehicle. The system calculates the optimal path into the parking lot and will then guide the vehicle into the chosen spot by taking over the steering control from the driver. The driver only needs to shift gears, brake and accelerate following the instructions given on the driver information center.

The system consists of the 8 parking assist sensors from the normal parking assist located in the front and rear bumper, and two additional parallel parking assist sensors on the side of the vehicle. The additional parallel parking assist sensors are used to measure the parking lot size. The parallel parking assist system uses the 8 parking assist sensors to identify objects in the vehicle's path when moving into the parking lot.

Diagnostic Aids

The following is a brief description of potential causes which may aid in diagnosis: Possible disengagement reasons:

Steering input by driver. The driver must not interfere with the steering function during a parking maneuver.

Vehicle speed. The vehicle is travelling at speeds of greater than 10 km/h (6 MPH) while performing a parking maneuver.

Electronic stability control or anti-lock brakes are activated. Failure within the system - check for DTCs.

Manual Disable - The parking assist system has been disabled through the parking assist switch or audio system personalization menu.

Hitch/Object Attached - The parking assist control module is detecting an object that is attached to the vehicle. Common items such as a hitch receiver, trailer, or a bicycle rack may cause this concern.

Additionally, damage to the rear of the vehicle or a misaligned sensor may cause this concern. If the vehicle is damaged in a manner that causes the sensor to detect the bumper itself, the parking assist control module will interpret this as an attached object and disable the system. Carefully inspect the bumper, bumper mounting surface, and sensor retainers before continuing with normal diagnosis. After the detected cause has been addressed the vehicle must be driven at speed greater than 40 km/h (25 MPH).

Sensor Disturbance - An outside interference is causing sensor movement. Such interference may be caused a heavy pounding, like that of a nearby jackhammer, or large changes in pressure, such as a large truck's air brakes.

Sensor Ring Time - If the sensor fails its own diagnostic initialization the parking assist control module will set this error. After the detected cause has been addressed the vehicle must be driven at speed greater than 40 km/h (25 MPH). The following is a list of reasons this cause may have set:

One or more of the sensors may be blocked by snow, mud, ice, or other debris. This might happen after going through a car wash in cold weather.

Silicone insulator surrounding sensor maybe missing, cut, or twisted.

Improperly installed sensor, sensor maybe be crooked due to a tight wire harness. One or more of the sensors may be scratched or the paint maybe chipped.

Excessive paint thickness on a sensor may cause an excessive sensor ring time. When replacing or refinishing a sensor, do not apply an excessive amount of paint or clear coat.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Parking Assist Description and Operation (with Parallel Parking or Automatic Parking Assist)

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Verify the correct operation of the parking assist system.

If the parking assist system malfunctions

Refer to Parking Assist System Malfunction.

If the parking assist system functions properly

2. Vehicle ON.

3. Verify the scan tool Advanced Parking Assist Switch parameter changes between Active and Inactive while pressing and releasing the parallel parking assist switch.

If the parameter does not change

Refer to Circuit/System Testing.

If the parameter changes

NOTE: After completing the next step the vehicle might need to be driven in the forward direction at speed greater than 40 km/h (25 MPH).

4. Verify the scan tool Park Assist System Status parameter is Enable.

If the parameter is not Enable

Refer to Diagnostic Aids to determine the cause of the inhibit.

If the parameter is Enable

5. All OK.

Circuit/System Testing

1. Vehicle in Service Mode.

2. Disconnect the harness connector at the S48E Multifunction Switch - Center Console.

3. Verify the scan tool Advanced Parking Assist Switch parameter is Inactive.

If not Inactive

1. Vehicle OFF, disconnect the X1 harness connector at the K41 Front and Rear Parking Assist Control Module.

2. Test for infinite resistance between the S48E Multifunction Switch - Center Console signal circuit terminal 7 and ground.

If less than infinite resistance, repair the short to ground on the circuit.

If infinite resistance, replace the K41 Front and Rear Parking Assist Control Module.

If Inactive

4. Install a 3 A fused jumper wire between the signal circuit terminal 7 and ground terminal 1.

5. Verify the scan tool Advanced Parking Assist Switch parameter Active.

If not Active

1. Vehicle OFF, disconnect the harness connector at the K41 Front and Rear Parking Assist Control Module, vehicle in Service Mode.

2. Test for less than 1 V between the S48E Multifunction Switch - Center Console signal circuit terminal 7 and ground.

If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V

3. Vehicle OFF

4. Test for less than 2 Ω in the signal circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, replace the K41 Front and Rear Parking Assist Control Module.

If Active

6. Test or replace the S48E Multifunction Switch - Center Console.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Refer to Vehicle Stability Control System Switch Replacement for S48E Multifunction Switch - Center Console replacement

Refer to Control Module References for control module replacement, programming and setup.

REAR CROSS TRAFFIC ALERT SYSTEM MALFUNCTION

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

Diagnostic Fault Information

Circuit/System Description

The side object sensor modules are located on each side of the vehicle behind the rear fascia and are not directly visible from outside the vehicle. The sensors use radar to determine the presence of objects nearby. When an object is detected in the rear cross traffic zone, the module will send out a signal through serial data communication to turn on the visual icons on the rear vision camera screen and also audio chime notification for the appropriate side. Each sensor is supplied B+ and ground. The right sensor receives an additional ground.

Both sensors communicate independently on the serial data line. The serial data enters the left sensor in a pass- thru configuration, that connects to the right sensor. The scan tool is able to individually communicate with each sensor.

Diagnostic Aids

The rear cross traffic alert system uses the same side blind zone sensors so a malfunction may affect either or both systems.

The conditions for disabling the rear cross traffic alert system are captured by DTCs. The drivers information center will display Service Side Detection System if one of the sensors has failed.

The rear cross traffic system can be disabled if any off the following occur:

The driver has selected the Off mode through vehicle personalization menus. The selected mode is retained over ignition cycles. A driver information center message stating that the Rear Cross Traffic System Alert Off shall be displayed.

There is a loss of serial data communication with a sensor or between modules.

A blockage condition exists (i.e. mud/snow buildup in front of the sensor). A driver information message stating that the side detection system is temporarily unavailable will be displayed. The rear

cross traffic system transitions back to the normal operating state when the blockage is removed. Bumper sticks, fascia damage, labels, and heavy rain storms may also cause this condition. The blockage determination is performed with the vehicle in a drive gear.

The rear cross traffic alert system will read the GPS latitude and longitude on the serial data bus and calculate if the vehicle is within a Radio Astronomy zone. These zones are located in Europe and Japan and require the sensors to be turned off. The "Side Detection System Unavailable" message will be displayed to the driver when this occurs.

Because the sensors are identical, they may be swapped from one side of the vehicle to the other in an attempt to isolate a concern. Sensors should NOT be swapped from one vehicle to another.

The rear cross traffic alert system is designed to ignore stationary objects; however, the system may occasionally detect pedestrians, shopping carts, or other objects. This is normal system operation and does not require service.

The rear cross traffic alert system may indicate an object if a trailer is attached to the vehicle, or a bicycle or object is extending out to either side of the vehicle. The system may also temporarily disable the system and display the "Side Detection System Unavailable" message.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Side Blind Zone Alert Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Vehicle ON.

2. Verify the scan tool can communicate with the right side object sensor.

If the scan tool can not communicate with the right side object sensor

Refer to Circuit/System Testing - Right Side Object Sensor Malfunction.

If the scan tool can communicate with the right side object sensor

3. Verify the scan tool can communicate with the left side object sensor.

If the scan tool can not communicate with the left side object sensor

Refer to Circuit/System Testing - Left Side Object Sensor Malfunction.

If the scan tool can communicate with the left side object sensor

4. Verify that the rear cross traffic indicators alerts turn ON and then turn OFF when commanding the Object Detection Alert Indicators ON and OFF with a scan tool.

If alert indicators do not turn ON and OFF

1. Verify the system is enabled.

If disabled, refer to diagnostic aids for cause of disable. If enabled, test or replace the radio.

If indicators turn ON and OFF

5. All OK.

Circuit/System Testing

Left Side Object Sensor Malfunction

1. Vehicle OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Disconnect the harness connector at the Side Object Sensor - Left.

2. Test for less than 10 Ω between ground circuit terminal 8 and ground.

If 10 Ω or greater

1. Vehicle OFF.

2. Test for less than 2 Ω in the ground circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, repair the open/high resistance in the ground connection.

If less than 10 Ω

3. Verify a test lamp illuminates between the B+ circuit terminal 5 and ground.

If the test lamp does not illuminate and the circuit fuse is good

1. Vehicle Off.

2. Test for less than 2 Ω in the B+ circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, verify the fuse is not open and there is voltage at the fuse.

If the test lamp does not illuminate and the circuit fuse is open

1. Vehicle OFF.

2. Test for infinite resistance between the B+ circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the Side Object Sensor - Left.

If the test lamp illuminates

4. Vehicle OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down.

5. Test for less than 2 Ω in each of the serial data circuits end to end between the control module harness connector terminal 2 and the DLC terminal 1.

If 2 Ω or greater

Repair the open/high resistance in the circuit.

If less than 2 Ω

6. Replace Side Object Sensor - Left.

Right Side Object Sensor Malfunction

1. Vehicle OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Disconnect the harness connector at the Side Object Sensor - Right.

2. Test for less than 10 Ω between the following ground circuit terminals and ground. Terminal 3

Terminal 8

If 10 Ω or greater

1. Vehicle OFF.

2. Test for less than 2 Ω in the ground circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, repair the open/high resistance in the ground connection.

If less than 10 Ω

3. Verify a test lamp illuminates between the B+ circuit terminal 5 and ground.

If the test lamp does not illuminate and the circuit fuse is good

1. Vehicle Off.

2. Test for less than 2 Ω in the B+ circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, verify the fuse is not open and there is voltage at the fuse.

If the test lamp does not illuminate and the circuit fuse is open

1. Vehicle OFF.

2. Test for infinite resistance between the B+ circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the Side Object Sensor - Right.

If the test lamp illuminates

4. Vehicle OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down.

5. Test for less than 2 Ω in each of the serial data circuits end to end between the control module harness connector terminal 7 and the DLC terminal 1.

If 2 Ω or greater

Repair the open/high resistance in the circuit.

If less than 2 Ω

6. Replace Side Object Sensor - Right.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Refer to Control Module References control module replacement, programming and setup REAR VISION CAMERA SYSTEM MALFUNCTION

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

Diagnostic Fault Information

Circuit/System Description

When the transmission is placed into REVERSE, a serial message is sent to the K74 Human Machine Interface Control Module indicating that camera operation is requested. Ignition voltage and ground are supplied to the rearview camera. The rearview camera sends video information to the radio through a video signal + and a video signal - circuit. A grounded shielding also wraps the video signal circuits to reduce electronic interference which may degrade the video signal and cause a distorted or otherwise degraded image.

Diagnostic Aids

A poor video image can be caused by ice, snow, and mud buildup on the lens of the rearview camera. Also, extreme lighting conditions can affect performance, such as operating in the dark or with bright sunlight shining on the camera. Extreme high or low temperatures can also affect the image quality. An open in the shield of the video signal circuit can also cause a distorted screen.

Terminal fretting or incorrectly seated connectors can cause a poor image displayed condition. Check the circuit terminals for fretting or incorrectly seated connector. If the condition is intermittent or cannot be duplicated, disconnect the connectors and add Nyogel lubricant 760G. This procedure will correct the high resistance

condition due to terminal fretting corrosion.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Rear Vision Camera Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

NOTE: If the condition is intermittent or cannot be duplicated, disconnect the connectors and add Nyogel lubricant 760G. This procedure will correct the high resistance condition due to terminal fretting corrosion.

1. Vehicle in Service Mode.

2. Verify that DTC B2545 is not set.

If the DTC is set

Refer to DTC B2545 .

If the DTC is not set

3. Verify the rearview camera there is no debris on the lens and that the bezel or bezel seal is not damaged.

If debris are found on the lens

Clean the lens. If the lens, bezel, or bezel seal are damaged, replace as necessary.

If no debris on the lens

4. Vehicle ON, transmission in REVERSE.

5. Verify the backup lamps are On.

If the backup lamps are not ON

Refer to Backup Lamps Malfunction .

If the backup lamps are ON

6. Engine running, transmission in REVERSE.

7. Verify a clear rear vision image is displayed on the radio.

If a clear image is not displayed

Refer to Circuit/System Testing.

If a clear image is displayed

8. All OK.

Circuit/System Testing

NOTE: Circuit/System Verification must be performed before Circuit/System Testing.

1. Vehicle OFF, disconnect the harness connector at the B87 Rearview Camera. It may take up to 2 min for all vehicle systems to power down.

2. Test for less than 10 Ω between the ground circuit terminal 4 and ground.

If 10 Ω or greater

Test for less than 2 Ω in the ground circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, repair the open/high resistance in the ground connection.

If less than 10 Ω

3. Vehicle in Service Mode.

4. Verify a test lamp illuminates between the ignition circuit terminal 5 and ground.

If the test lamp does not illuminate and the circuit fuse is good

1. Vehicle OFF.

2. Test for less than 2 Ω in the ignition circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, verify the fuse is OK and there is voltage at the fuse.

If the test lamp does not illuminate and the circuit fuse is open

1. Vehicle OFF.

2. Test for infinite resistance between the ignition circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, test or replace the KR74 Ignition Run Relay.

If the test lamp illuminates

5. Vehicle OFF, disconnect the X2 harness connector at the K74 Human Machine Interface Module, Vehicle in Service Mode.

6. Test for less than 1 V between the signal circuit terminal listed below and ground: Signal (+) circuit terminal 5 at the B87 Rearview Camera.

Signal (-) circuit terminal 6 at the B87 Rearview Camera.

If 1 V or greater

Repair the short to voltage on the circuit.

If less than 1 V

7. Test for infinite resistance between the signal circuit terminal listed below and ground: Signal (+) circuit terminal 5 at the B87 Rearview Camera.

Signal (-) circuit terminal 6 at the B87 Rearview Camera.

If less than infinite resistance

Repair the short to ground on the circuit.

If infinite resistance

8. Test for less than 2 Ω in the signal (+) circuit end to end.

If 2 Ω or greater

Repair the open/high resistance in the circuit.

If less than 2 Ω

9. Test for less than 2 Ω in the signal (-) circuit end to end.

If 2 Ω or greater

Test the signal circuit for an open/high resistance.

If less than 2 Ω

10. Replace the B87 Rearview Camera.

11. Engine running, transmission in REVERSE, verify a clear rear vision image is displayed on the A11 Radio.

If a clear rear vision image is not displayed on the A11 Radio

Replace the K74 Human Machine Interface Module.

If a clear rear vision image displayed on the A11 Radio

12. All Ok.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Rearview Driver Information Camera Replacement

Refer to Control Module References for control module replacement, programming and setup

SIDE BLIND ZONE ALERT SYSTEM MALFUNCTION

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

Diagnostic Fault Information

Circuit/System Description

The side blind zone alert system detects and reports objects on either side of the vehicle, within a specified blind spot zone. The system alerts with a visual indicator placed on each side rear view mirror, to the presence of objects that may not be visible in the inside rearview mirror and outside rearview mirrors. Although this system is intended to help drivers avoid lane change crashes, it does not replace driver vision and therefore should be considered a lane change aid. Even with the side blind zone system, the driver must check carefully for objects outside of the reporting zone (e.g., a fast approaching vehicle) before changing lanes. In the event that the system senses a malfunction through its diagnostic routines, the system will be disabled and the driver will be visually notified.

When the system detects a vehicle in the side blind zone while driving forward, independent if passing a vehicle or being passed, an amber warning symbol will light up in the appropriate outside mirror. This indicates that it may be unsafe to change lanes. If the driver then activates the turn signal, the amber warning symbol starts flashing as an extra warning not to change lanes.

Side blind zone alert is active when the vehicle is out of park or the parking brake is off on manual transmission vehicles and from speeds of 10 km/h (6.2 MPH) up to 140 km/h (87 MPH). Driving faster deactivates the system, indicated by dimly lighting the warning symbols in the mirrors. Driving under this speed again will turn off the warning symbols. If then a vehicle is detected in the blind zone, the warning symbols will turn on normally on the appropriate side. When the vehicle is started, both outside mirror displays will briefly come on to indicate that the system is operating.

Diagnostic Aids

The conditions for disabling the side blind zone alert system are captured by DTCs. The drivers information center will display Service Side Detection System if one of the sensors has failed.

The side blind zone system can be disabled if any off the following occur:

The driver has selected the Off mode through vehicle personalization menus. The selected mode is retained over ignition cycles. A driver information center message stating that the side blind zone system is off shall be displayed and the outside mirror indicators will be OFF.

There is a loss of serial data communication with a sensor or between modules.

A blockage condition exists (i.e. mud/snow buildup in front of the sensor). A driver information message stating that the side detection system is temporarily unavailable will be displayed. The rear cross traffic system transitions back to the normal operating state when the blockage is removed.

Bumper sticks, fascia damage, labels, and heavy rain storms may also cause this condition. The

blockage determination is performed with the vehicle in a drive gear.

The side blind zone alert system will read the GPS latitude and longitude on the serial data bus and calculate if the vehicle is within a Radio Astronomy zone. These zones are located in Europe and Japan and require the sensors to be turned off. The "Side Detection System Unavailable" message will be displayed to the driver when this occurs.

Because the sensors are identical, they may be swapped from one side of the vehicle to the other in an attempt to isolate a concern. Sensors should NOT be swapped from one vehicle to another.

The side blind zone system is designed to ignore stationary objects; however, the system may occasionally detect guard rails, signs, trees, shrubs, or other stationary objects as an object in the blind zone. This is normal system operation and does not require service.

The side blind zone system may indicate an object in the blind zone if a trailer is attached to the vehicle, or a bicycle or object is extending out to either side of the vehicle. The system may also temporarily disable the system and display the "Side Detection System Unavailable" message.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Side Blind Zone Alert Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

1. Vehicle ON.

2. Verify the scan tool can communicate with the left side object sensor.

If the scan tool can not communicate with the left side object sensor

Refer to Circuit/System Testing - Left Side Object Sensor Malfunction.

If the scan tool can communicate with the left side object sensor

3. Verify the scan tool can communicate with the right side object sensor.

If the scan tool can not communicate with the right side object sensor

Refer to Circuit/System Testing - Right Side Object Sensor Malfunction.

If the scan tool can communicate with the right side object sensor

4. Vehicle OFF, vehicle ON.

5. Verify that the side blind zone alert system indicator located in the appropriate outside rearview mirror turns ON and OFF when commanding the appropriate Object Detection Alert Indicator On and Off with a scan tool.

If one or both indicators do not turn ON and OFF

Refer to Circuit/System Testing - Side Object Indicator Malfunction.

If both indicators turn ON and OFF

6. All OK.

Circuit/System Testing

Left Side Object Sensor Malfunction

1. Vehicle OFF and all vehicle systems OFF. Disconnect the harness connector at the B218L Side Object Sensor Module - Left. It may take up to 2 min for all vehicle systems to power down.

2. Test for less than 10 Ω between ground circuit terminal 8 and ground.

If 10 Ω or greater

1. Vehicle OFF.

2. Test for less than 2 Ω in the ground circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, repair the open/high resistance in the ground connection.

If less than 10 Ω

3. Verify a test lamp illuminates between the B+ circuit terminal 5 and ground.

If the test lamp does not illuminate and the circuit fuse is good

1. Vehicle Off.

2. Test for less than 2 Ω in the B+ circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, verify the fuse is not open and there is voltage at the fuse.

If the test lamp does not illuminate and the circuit fuse is open

1. Vehicle OFF.

2. Test for infinite resistance between the B+ circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit.

If infinite resistance, replace the B218L Side Object Sensor Module - Left.

If the test lamp illuminates

4. Vehicle OFF and all vehicle systems OFF. Disconnect the It may take up to 2 minutes for all vehicle

systems to power down.

5. Test for less than 2 Ω between the serial data circuit terminal 2 and the DLC terminal 1.

If 2 Ω or greater

Repair the open/high resistance in the circuit.

If less than 2 Ω

6. Replace B218L Side Object Sensor Module - Left.

Right Side Object Sensor Malfunction

1. Vehicle OFF and all vehicle systems OFF. Disconnect the harness connector at the B218R Side Object Sensor Module - Right. It may take up to 2 min for all vehicle systems to power down.

2. Test for less than 10 Ω between the following ground circuit terminals and ground. Terminal 3

Terminal 8

If 10 Ω or greater

1. Vehicle OFF.

2. Test for less than 2 Ω in the ground circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, repair the open/high resistance in the ground connection.

If less than 10 Ω

3. Verify a test lamp illuminates between the B+ circuit terminal 5 and ground.

If the test lamp does not illuminate and the circuit fuse is good

1. Vehicle Off.

2. Test for less than 2 Ω in the B+ circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, verify the fuse is not open and there is voltage at the fuse.

If the test lamp does not illuminate and the circuit fuse is open

1. Vehicle OFF.

2. Test for infinite resistance between the B+ circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit.

If infinite resistance, replace the B218R Side Object Sensor Module - Right.

If the test lamp illuminates

4. Vehicle OFF and all vehicle systems OFF. It may take up to 2 min for all vehicle systems to power down.

5. Test for less than 2 Ω between the serial data circuit terminal 7 and the DLC terminal 1.

If 2 Ω or greater

Repair the open/high resistance in the circuit.

If less than 2 Ω

6. Replace B218R Side Object Sensor Module - Right.

Side Object Indicator Malfunction

1. Vehicle OFF and all vehicle systems OFF, disconnect the harness connector for the appropriate A9 Outside Rearview Mirror. It may take up to 2 min for all vehicle systems to power down.

X510 - Driver Door Harness to Outside Rearview Mirror

X610 - Passenger Door Harness to Outside Rearview Mirror

2. Test for less than 10 Ω between the ground circuit terminal 11 and ground.

If 10 Ω or greater

1. Vehicle OFF.

2. Test for less than 2 Ω in the ground circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, repair the open/high resistance in the ground connection.

If less than 10 Ω

3. Vehicle ON, connect a test lamp between the control circuit terminal 15 and the ground circuit terminal 11.

4. Verify the test lamp turns ON and OFF when commanding the Object Detection Alert Indicators ON and OFF with a scan tool.

If the test lamp is always OFF

1. Vehicle OFF, disconnect the harness connector at the appropriate B218 Side Object Sensor Module.

2. Test for infinite resistance between the control circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance

3. Test for less than 2 Ω in the control circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit. If less than 2 Ω, replace the B218 Side Object Sensor Module.

If the test lamp is always ON

1. Vehicle OFF, disconnect the harness connector at the B218 Side Object Sensor Module, Vehicle ON.

2. Test for less than 1 V between the control circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit.

If less than 1 V, replace the B218 Side Object Sensor Module.

If the test lamp turns ON and OFF

5. Test or replace the appropriate E17 Outside Rearview Mirror Glass.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Outside Rearview Mirror Glass Replacement

Refer to Control Module References for control module replacement, programming and setup.

LANE DEPARTURE WARNING SYSTEM MALFUNCTION

Diagnostic Instructions

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach.

Refer to Diagnostic Procedure Instructions to provide an overview of each diagnostic category.

Diagnostic Fault Information

Circuit/System Description

The lane departure warning system is enabled and disabled through the lane departure switch. When enabled, the lane departure warning indicator will illuminate. The switch and indicator are connected to the Frontview Camera Module. The Frontview Camera module supplies a reference voltage to the lane departure switch.

When the switch is pressed, the signal circuit is grounded. When enabled, the Frontview Camera Module will illuminate the indicator located in the switch when lane departure warning system is enabled.

When the system is operating and can detect the lane markings, the Frontview Camera Module will request via serial data communications that the instrument cluster illuminates the green lane departure ready-to-assist indicator. If the Frontview Camera Module detects that the vehicle unintentionally crosses a lane marking without the turn signal being used, the module will request the vehicle direction display to flash the amber lane departure warning indicator. An audible warning will also sound three times when the amber lane departure warning indicator in the vehicle direction display is flashing.

Diagnostic Aids

Certain factors will affect the operation of the lane departure warning system. When the system is operating properly, the green lane departure warning indicator will illuminate on the instrument cluster. This indicates that all of the required operating conditions to permit lane departure warning have been met. The green lane departure warning indicator will not appear when the system is having difficulty seeing the lines on the road or if the view of the front view camera is blocked with mud, dirt, snow, ice, or slush, if the windshield is damaged, or when weather limits visibility, such as while driving in fog, rain, or snow conditions. This is normal operation, the vehicle does not need service. Additionally, lane departure warnings may occasionally occur in a properly operating vehicle due to tar marks, shadows, cracks in the road, or other road imperfections. This is normal system operation and the vehicle does not require service. The driver information center may also display Lane Departure System Unavailable due to the temporary conditions listed above.

The driver information center may also display LANE DEPARTURE WARNING SYSTEM UNAVAILABLE when the front camera module and bracket assembly is not properly installed. It may be helpful to verify the correct installation of the front camera and bracket assembly. Calibrate the front camera module after repair. Refer to Front View Camera Module Learn

Additionally, the Front View Camera Disable History can give useful hints about what affected the operation of the lane departure warning system. For the Front View Camera Disable History, refer to DTC B1011.

Reference Information

Schematic Reference

Object Detection Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Lane Departure Warning Description and Operation Forward Collision Alert Description and Operation

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

NOTE: Refer to Diagnostic Aids before performing Circuit/System Verification.

1. Ignition ON.

2. Verify the K43 Power Steering Control Module (if equipped) and the K17 Electronic Brake Control Module do not have any DTCs set.

If any DTC is set

Refer to Diagnostic Trouble Code (DTC) List - Vehicle .

If the DTC is not set

3. Verify that DTC B356A is not set.

If the DTC is set

Refer to DTC B356A.

If the DTC is not set

4. Verify that DTC B0987 is not set.

If the DTC is set

Refer to DTC B0987.

If the DTC is not set

5. Verify that DTC B1011 is not set.

If the DTC is set

Refer to DTC B1011.

If the DTC is not set

6. Verify the scan tool Frontview Camera Disable History 1 parameter does not have a current Malfunction

If the parameter is Malfunction

Refer to Diagnostic Aids.

If the parameter is Normal

7. Verify the scan tool Frontview Camera System Status parameter is Normal.

If the parameter is Undefined or Malfunction

Refer to Diagnostic Aids.

If the parameter is Normal

8. Verify the scan tool Lane Departure Warning Switch Status parameter changes between Open and Closed while pressing and releasing the lane departure warning switch.

If the parameter does not change between Open and Closed

Refer to Lane Departure Warning Switch Malfunction in Circuit/System Testing.

If the parameter changes between Open and Closed

9. Verify the scan tool Lane Departure Warning Switch indicator turns on and off while pressing and releasing the lane departure warning switch.

If the indicator does not turn on and off

Refer to Lane Departure Warning Switch Indicator Malfunction in Circuit/System Testing.

If the indicator turns on and off

10. Verify the area of the K109 Frontview Camera Module for contamination.

If it needs to be cleaned

Clean the windshield.

If it does not need to be cleaned

11. All OK.

Circuit/System Testing

Lane Departure Warning Switch Malfunction

1. Ignition OFF, disconnect the harness connector at the S70L Steering Wheel Controls Switch - Left. It may take up to 2 minutes for all vehicle systems to power down.

2. Test for less than 5 Ω between the S70L Steering Wheel Controls Switch - Left ground circuit terminal 7 and ground.

If 5 Ω or greater

1. Test for less than 2 Ω in the ground circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, repair the open/high resistance in the ground connection.

If less than 5 Ω

3. Ignition ON.

4. Verify the scan tool Lane Departure Warning Switch Status parameter is Open.

If not Open

1. Ignition OFF. Disconnect the K109 Frontview Camera Module.

2. Test for infinite resistance between the S70L Steering Wheel Controls Switch - Left signal circuit terminal 2 and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K109 Frontview Camera Module.

If Open

5. Install a 3 A fused jumper wire between the signal circuit terminal 2 and the ground circuit terminal 7.

6. Verify DTC B356A 02 sets.

If DTC does not set

1. Ignition OFF, remove the jumper wire, disconnect the harness connector at the K109 Frontview Camera Module, ignition ON.

2. Test for less than 1 V between the signal circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V

3. Test for less than 2 Ω in the signal circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit. If less than 2 Ω, replace the K109 Frontview Camera Module.

If DTC sets

7. Test or replace the S70L Steering Wheel Controls Switch - Left.

Lane Departure Warning Switch Indicator Malfunction

1. Ignition OFF, disconnect the harness connector at the S70L Steering Wheel Controls Switch - Left, ignition ON.

NOTE: Verify interior lighting dimming is turned all the way up.

2. Test for 6.2 - 12.0 V between the dimming control circuit terminal 4 and ground.

If less than 6.2 V

1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module.

2. Test for infinite resistance between the control circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance

3. Test for less than 2 Ω in the control circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit. If less than 2 Ω, refer to Interior Backlighting Malfunction .

If greater than 12.0 V

1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module, ignition ON.

2. Test for less than 1 V between the control circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit.

If less than 1 V, refer to Interior Backlighting Malfunction .

If between 6.2 - 12.0 V

3. Connect a test lamp between the control circuit terminal 5 and the control voltage circuit terminal 4.

4. Verify the test lamp turns ON and OFF when commanding the Lane Departure Warning Indicator parameter ON and OFF with a scan tool.

If the test lamp is always OFF

1. Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module, ignition ON.

2. Test for less than 1 V between the control circuit and ground.

If 1 V or greater, repair the short to voltage on the circuit. If less than 1 V

3. Ignition OFF.

4. Test for less than 2 Ω in the control circuit end to end.

If 2 Ω or greater, repair the open/high resistance in the circuit.

If less than 2 Ω, replace the S70L Steering Wheel Controls Switch - Left.

If the test lamp is always ON

1. Ignition OFF, disconnect the harness connector at the K109 Frontview Camera Module.

2. Test for infinite resistance between the control circuit and ground.

If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the K109 Frontview Camera Module.

If the test lamp turns ON and OFF

5. Test or replace the S70L Steering Wheel Controls Switch - Left.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Cruise Control Switch Replacement - Steering Wheel Controls Switch - Left replacement.

Refer to Control Module References for Frontview Camera Module replacement, programming and setup.

REPAIR INSTRUCTIONS

FORWARD RANGE RADAR SENSOR REPLACEMENT

Fig. 8: Forward Range Radar Sensor

Courtesy of GENERAL MOTORS COMPANY

ACTIVE SAFETY CONTROL MODULE REPLACEMENT

Fig. 9: Active Safety Control Module

Courtesy of GENERAL MOTORS COMPANY

FORWARD COLLISION ALERT DISPLAY REPLACEMENT

Fig. 10: Forward Collision Alert Display Courtesy of GENERAL MOTORS COMPANY

PARKING ASSIST CONTROL MODULE REPLACEMENT

Fig. 11: Parking Assist Control Module Courtesy of GENERAL MOTORS COMPANY

ADVANCED PARKING ASSIST ALARM SENSOR REPLACEMENT

Fig. 12: Advance Parking Assist Alarm Sensor Courtesy of GENERAL MOTORS COMPANY

SIDE OBJECT SENSING ALERT MODULE REPLACEMENT

Fig. 13: Side Object Sensing Alert Module Courtesy of GENERAL MOTORS COMPANY

REAR PARKING ASSIST ALARM SENSOR REPLACEMENT

Fig. 14: Rear Parking Assist Alarm Sensor Courtesy of GENERAL MOTORS COMPANY

FRONT VIEW CAMERA REPLACEMENT

Fig. 15: Front View Driver Information Camera Courtesy of GENERAL MOTORS COMPANY

REARVIEW DRIVER INFORMATION CAMERA REPLACEMENT

Fig. 16: Rearview Driver Information Camera Courtesy of GENERAL MOTORS COMPANY

FRONT VIEW CAMERA MODULE LEARN

Calibration

For North American SPS users, Calibration MAY NOT start automatically and will need to be initiated with GDS2. For European SPS users, Calibration MAY start automatically and will not need to be initiated with GDS2.

The calibration process for the front view camera system is necessary when a front view camera module is replaced by a new one. This process is required when only replacing the windshield and the front view camera module has been mounted again properly. This process shall be completed within 3 - 5 minutes when the ideal driving conditions are met. If conditions are not met correct, the front view camera module shall continuously run the service point calibration until successfully completed. This process shall work across ignition cycles and shall not be required to be re-initialized at start up. If the Lane Departure Warning Switch is pressed during

calibration, the indictor will flash momentarily and then stay out - this is normal operation.

To calibrate the front camera, operate the vehicle in the following conditions until the calibration is complete: Clean windshield.

Avoid lane changes.

Maintain vehicle speeds between 56 - 90 km/h (35 - 56 MPH).

Ensure the road contains visible references (well defined lane markings, curbs, etc.).

Calibration Procedure (If Manual Initiation Required)

1. Apply the parking brake.

2. Place the transmission in Park (if applicable)

3. Install scan tool

4. Navigate to the module diagnostics menu

5. Select Frontview Camera Module

6. Select Configuration/Reset Functions menu Item

7. Select the Frontview Camera Learn procedure and follow the directions displayed on the screen.

8. Drive the vehicle to complete calibration.

Once the procedure is complete, the amber indicator will turn off . Shortly after the green ready to assist light should turn on as long as all conditions are met for normal operation. The system is then ready to assist.

If Slow to Calibrate

One or more of the following conditions may increase the length of time required to complete the self- calibration procedure:

Heavy traffic

Stop and go traffic Mountain roads

Curves in roadway

Poor contrast lane markings

Botts' Dots type lane markings

Operating the vehicle speed is greater than 90 km/h (56 MPH) Driving through snow or fog, or driving directly into the sun

Camera not properly installed. Verify it is snapped into tabs and is secure. Refer to Front View Camera Replacement .

No Calibration

Conditions that will prevent completion of the self-calibration procedure: Dirty windshield glass or obstruction on windshield

Operating the vehicle with speed less than 56 km/h (35 MPH)

No visible lane markings

Severe weather where lane markings cannot be seen

Camera not properly installed. Verify it is snapped into tabs and is secure. Refer to Front View Camera Replacement .

PARKING ASSIST SENSOR LEARN CALIBRATION

Calibration

The calibration process for the Parking Assist system is necessary when a parking assist sensor has been replaced or improperly learned.

To calibrate the Parking Assist sensors:

NOTE: Parking Assist Sensors should be at or near room temperature

1. Select Parking Assist Sensor Learn in the scan tool

2. Operate the vehicle in the following conditions until the calibration is complete: Nothing is within 50 cm of the parking assist sensors

Ensure the parking assist sensors are clean

3. Vehicle OFF, scan tool disconnected, all doors closed, all accessories OFF, open and close driver door. It may take up to 2 min for all vehicle systems to power down.

4. Verify Parking Assist system is operating correctly and there are no DTCs set.

No Calibration

Conditions that will prevent completion of the self-calibration procedure: Dirty or contaminated obstruction on the parking assist sensor

Objects are within 50 cm of the parking assist sensors

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Refer to Control Module References for control module replacement, programming and setup

RADAR SENSOR MODULE - LONG RANGE LEARN

NOTE: "Adaptive Cruise Temporarily Unavailable" service message may be displayed if this calibration procedure has to be performed. The radar may have become misaligned.

After replacing and programming the Long Range Radar Sensor Module, it is necessary to perform a calibration procedure to align the radar. This is indicated to the technician by DTC B101E 4B. Calibration is performed while driving the vehicle with the scantool connected. Calibration is initialized using a scantool and the scantool must remain connected until calibration is complete. During this time the "Service Driver Assist" service message will be displayed. Once the procedure is complete, the service message will turn off and normal operation will resume.

Calibration is not required if the existing module was reprogrammed only. Calibration needs to be conducted if the module was replaced or removed and re-secured.

If calibration is not successful, it could be due to improper driving environment, module and bracket assembly bent out of position or incorrect module mounting. A typical driving environment is usually sufficient to calibrate the module within 10 - 30 minutes. The module needs to be mounting properly in the bracket and aimed straight ahead within +/- 3 degrees.

Calibration Procedure

1. Verify no other DTCs except for B101E 4B Electronic Control Unit Software are present.

If other DTCs are present

Refer to service information and repair as necessary.

If no other DTCs are present

2. Prior to driving the vehicle make sure the surface in front of the radar (vehicle emblem) is clean. Also verify the mounting area is not damaged and allows the module to face the intended direction.

3. Prepare scantool to be mobile for Long Range Radar Calibration driving phase. The scantool needs to stay connected during the driving phase of the calibration.

4. Engine running.

5. Initiate calibration using Long Range Radar Sensor Module Learn in the scantool. The driver information display will display "Service Driver Assist" message during calibration.

NOTE: Do not back out of screen or press any other buttons until the calibration is complete.

6. Drive the vehicle within the following conditions for 10 - 30 minutes or until calibration is complete. The "Service Driver Assist" message will turn off when calibration is complete.

Drive at speeds greater than 56 kph (35 mph) Minimize tight curves

Avoid extreme acceleration or deceleration

Follow one or multiple vehicles. (typical vehicle traffic is sufficient, but vehicles 30 - 50 m (100 - 165 ft) away are most effective at decreasing the calibration time)

Drive in an environment that has stationary objects on the side of the road (street signs, guard rails, mail boxes, fences, etc)

7. Verify proper calibration by observing that the "Service Driver Assist" message turns off within 10 - 30 minutes of normal driving.

If "Service Driver Assist" message fails to turn off

1. Verify correct operating conditions were met

If incorrect driving environment, refer to If Slow to Calibrate and repeat calibration procedure following recommended operating conditions.

If correct driving environment

2. Verify DTC B390C 66 Incorrect Mounting is not set If B390C 66 is set

Refer to DTC B390C.

If B390C 66 is not set

If "Service Driver Assist" message turns off

8. Drive at speeds greater than 40 kph (25 mph) and verify engagement of Adaptive Cruise Control (cruise control icon will change from white to green)

If Adaptive Cruise Control will not engage

Check vehicle for DTCs and correct as required.

If Adaptive Cruise Control engages

9. All OK.

If Slow to Calibrate

The ideal calibration condition is driving on a freeway or two lane road with medium traffic. One or more of the following conditions may increase the length of time required to complete the self-calibration procedure:

Heavy traffic - following too close behind vehicles for long periods (more than 40 min) Stop and go or very slow traffic

Mountain roads

Constant sharp curves in roadway

No traffic - if no traffic is available, may need to add vehicle ahead to support calibration

Limited or no stationary structures on side of the road - need structures such as street signs, guard rails, mail boxes, parked cars, etc.

Driving in tunnels

DESCRIPTION AND OPERATION

PARKING ASSIST DESCRIPTION AND OPERATION (WITH REAR PARK ASSIST, UD7)

The ultrasonic parking assist system is designed to identify and notify the driver of an object in the vehicles path when reversing at speeds of less than 8 km/h (5 MPH). The distance and location of the object is determined by 4 object sensors located in the rear bumper. The parking assist system will notify the driver using an audible beep signal through the radio rear speakers.

The parking assist system is made up of the following components: Parking assist control module

Rear object alarm sensors

Parking Assist Control Module

The parking assist control module provides an 8 V reference and a low reference to the four object alarm sensors. The parking assist control module receives individual signals from each of the four sensors and determines the location and distance of an object based on these inputs. When an object is detected, the parking assist control module will send a data message via CAN-Bus to the radio requesting an audible alert.

Rear Object Alarm Sensors

The object alarm sensors are located in the rear bumper of the vehicle. The sensors are used to determine the distance between an object and the bumper. Each sensor emits an ultrasonic frequency which is reflected off any object located behind the vehicle. These reflections are received by the sensors. The time difference between the emission of the frequency and when the reflection is received is known as sensor echo time, it is used to determine the distance to the object. The sensors report this information to the parking assist control module.

Rear Parking Assist Operation

When the vehicle is first placed into reverse there will be one audible beep through the rear speakers, to indicate that the system is working. If rear speakers are inoperable no audible signals will occur.

When backing up at speed of less than 8 km/h (5 MPH), the system is constantly monitoring for object of interest located behind the vehicle. The rear parking assist system can detect objects greater than 7.6 cm (3 in) wide and 25.4 cm (10 in) tall. The system cannot detect objects below the bumper, underneath the vehicle. If an object is detected within 2.5 m (8 ft) there will be a audible beep notification out of both rear speakers based upon the distance to the object. As the vehicle gets closer to an object, the time between the beeps become shorter.

If the vehicle stops in a range zone the beeping will stop after 5 s. When the distance between the object and the vehicle changes, beeping will start again.

If the rear parking assist system detects a malfunction the single audible beep will not chime when put into reverse along with a DTC being stored. The object alarm module will send a serial data message to the instrument panel cluster to display the SERVICE PARK ASSIST message on the driver information center.

Parking Assist System Driver Information Center Messages

SERVICE PARK ASSIST

The driver information center displays SERVICE PARK ASSIST when the parking assist control module detects a malfunction in the rear parking assist system and the system is disabled. The driver information center also displays SERVICE PARK ASSIST when a loss of communication occurs with the parking assist control module.

PARK ASSIST OFF

The PARK ASSIST OFF message is displayed in the driver information center when the parking assist system is disabled due to conditions that disable or inhibit the system. The parking assist control module requests the driver information center display PARK ASSIST OFF when it detects that one of the following conditions:

The rear parking assist system is manually disabled by the vehicle operator through the audio system personalization menu.

The park brake is applied or not fully released.

An object is attached to the rear of the vehicle, such as a trailer, bicycle rack, trailer hitch receiver, or tow bar. Also, an object extending beyond a lowered endgate will disable the system.

The parking assist sensors are covered by snow, mud, dirt or ice. The vehicle bumper is damaged.

Excessive paint thickness on a replacement parking assist sensor.

The parking assist sensors are disrupted by vibrations, like those caused by a large nearby vehicle or from heavy equipment such as a jackhammer.

PARKING ASSIST DESCRIPTION AND OPERATION (WITH FRONT AND REAR PARK ASSIST, UFQ)

The parking assist system is designed to identify and notify the driver of an object in the vehicle path when moving forward or reversing at speeds of less than 8 km/h (5 MPH). The distance and location of the object is determined by 8 object sensors: 4 located in the rear bumper and 4 located in the front bumper. The parking assist system will notify the driver using an audible beep signal through the radio.

The parking assist system is made up of the following components: Advanced parking assist control module

Front object alarm sensors Rear object alarm sensors Parking assist switch

Parking assist switch indicator

Advanced Parking Assist Control Module

The advanced parking assist control module provides a reference voltage and a low reference to the 8 object alarm sensors. The advanced parking assist control module receives individual signals from each of the 8 sensors and determines the location and distance of an object based on these inputs. When an object is detected, the advanced parking assist control module will send a data message via CAN-Bus to the radio requesting an audible alert.

Object Alarm Sensors

The object alarm sensors are located in the front and rear bumpers of the vehicle. The sensors are used to determine the distance between an object and the bumper. Each sensor emits an ultrasonic frequency which is reflected off any object located in front of or behind the vehicle. These reflections are received by the sensors. The time difference between the emission of the frequency and when the reflection is received is known as sensor echo time, it is used to determine the distance to the object. The sensors report this information to the advanced parking assist control module.

Parking Assist Switch

The parking assist can be activated and deactivated by pressing the parking assist switch. By engaging the reverse gear the parking assist can also be activated. By subsequently pressing the parking assist switch the parking assist can be disabled again.

Parking Assist Switch Indicator

The indicator in the parking assist switch shows the status of the parking assist. If the lamp is ON, the parking assist is activated.

Parking Assist Operation

When an object is within the measuring range of the sensor, the ultrasonic pulse is reflected and is received by the sending or a neighboring sensor. The sensor converts this signal into a voltage signal and sends this signal to the parking assist control module. The advanced parking assist control module evaluates the received sensor signals. As soon as an object is within the measuring range, the advanced parking assist control module sends a message via CAN-Bus to the radio in order to give out the acoustic distance signal.

The parking assist system can detect objects greater than 7.6 cm (3 in) wide and 25.4 cm (10 in) tall. The system cannot detect objects below the bumper, underneath the vehicle. If an object is detected, one of the following will occur:

The measuring range of the front object alarm sensors is between 30 - 120 cm (11.8 - 47.2 in). From a distance of 120 cm (47.2 in), the acoustic signal is active. The frequency of the beep sound increases with decreasing distance. From a distance less than 30 cm (11.8 in), the sound becomes continuous.

The measuring range of the rear object alarm sensors is between 30 - 250 cm (11.8 - 98.4 in). From a distance of 250 cm (98.4 in), the acoustic signal is active. The frequency of the beep sound increases with decreasing distance. From a distance less than 30 cm (11.8 in), the sound becomes continuous.

The parking assist can be activated and deactivated by pressing the parking assist switch. When REVERSE gear is selected, park assist automatically is engaged for both front and rear sensors. When the vehicle is put into DRIVE from REVERSE the front assist sensors will be active up to speeds of 8 km/h (5 MPH) to assist with parking maneuvers. Once the vehicle is above 8 km/h (5 MPH) the front sensors are disabled and will not be re- enabled until either REVERSE gear is selected or the parking assist switch is pressed to activate the system.

Once the parking assist switch is pressed during a key cycle the front sensors become active at speeds under 8 km/h (5 MPH). If the park assist switch is pressed again in the same key cycle the message "Park Assist Off" will be displayed in the driver information center if the vehicle speed is under 8 km/h (5 MPH) and front sensors detect an object within 120 cm (47.2 in). The LED indicator on the parking assist switch provides the ON/OFF state of the system. If the indicator is ON, the system is active and ready to assist.

The advanced parking assist control module carries out a self test and monitors the sensors for electrical and mechanical faults. Monitored is the power supply of each sensor and the sensor signals, which need to alter when the vehicle moves. If this is not the case, the sensor is acoustically blocked or faulty. Mud, ice and snow may cause obstruction of the function of the sensors. Besides that the advanced parking assist control module checks whether the correct type of sensor is installed. If any of these tests fails, a DTC with corresponding symptom is set, the parking assist is deactivated and the parking assist indicator in the instrument panel cluster is activated.

Parking Assist System Driver Information Center Messages

SERVICE PARK ASSIST

The driver information center displays SERVICE PARK ASSIST when the advanced parking assist control module detects a malfunction in the parking assist system and the system is disabled. The driver information center also displays SERVICE PARK ASSIST when a loss of communication occurs with the advanced parking assist control module.

PARK ASSIST OFF

The PARK ASSIST OFF message is displayed in the driver information center when the parking assist system is disabled due to conditions that disable or inhibit the system. The advanced parking assist control module

requests the driver information center display PARK ASSIST OFF when it detects that one of the following conditions:

The parking assist system is manually disabled using the parking assist switch.

An object is attached to the rear of the vehicle, such as a trailer, bicycle rack, trailer hitch receiver, or tow bar. Also, an object extending beyond a lowered tailgate will disable the system.

The parking assist sensors are covered by snow, mud, dirt, slush, or ice. The vehicle bumper is damaged.

Excessive paint thickness on a replacement parking assist sensor.

The parking assist sensors are disrupted by vibrations, like those caused by a large nearby vehicle or from heavy equipment such as a jackhammer.

PARKING ASSIST DESCRIPTION AND OPERATION (WITH PARALLEL PARKING OR AUTOMATIC PARKING ASSIST)

NOTE: The parallel parking assist system can steer the vehicle automatically. Be aware that, in some unlikely situations, the vehicle steering wheel and wheels/tires may move without warning. Please be especially aware of situations when vehicle front tires are lifted above the ground on a vehicle hoist as the wheels could move without warning. Please exercise special care if any work is performed with the vehicle running and in gear while elevated on a hoist.

In addition to the 8 ultrasonic sensors used for front and rear park assist, the parallel parking assist system uses, additional sensors located on the front fascia and/or two additional sensors located on the rear fascia. These sensors face toward the side of the vehicle and are used to aid the driver in positioning the vehicle in a parallel parking maneuver.

NOTE: Any malfunction in the Parking Assist system may disable parallel parking. Parallel parking will NOT operate if the Parking Assist system is disabled.

Parallel Parking Assist Components

The parking assist system is made up of the following components: Parking assist control module

Front parking assist sensors Rear parking assist sensors Parking assist side sensors

Parallel Parking assist switch

Parking assist switch indicator (if equipped)

Parking Assist Control Module

The parking assist control module provides a reference voltage and a low reference to the parking assist sensors. The parking assist control module receives individual signals from each of the sensors and determines the location and distance of an object based on these inputs. When an object is detected, the parking assist control module will send a serial data message to the radio requesting an audible alert or to the memory seat module for

a haptic alert (if equipped). Refer to the owner's manual for more information on Vehicle Personalization.

Parking Assist Sensors and Parking Aid Side Sensors

The parking assist sensors are located in the bumpers of the vehicle. The sensors are used to determine the distance between an object and the bumper. Each sensor emits an ultrasonic frequency which is reflected off any object located in front of or behind the vehicle. These reflections are received by the sensors. The time difference between the emission of the frequency and when the reflection is received is known as sensor ring time, it is used to determine the distance to the object. The sensors report this information to the parking assist control module. The parking assist sensors detect object to approximately 2.5 m (8 ft). The parking assist side sensors (located on the side of the vehicle) detect objects to approximately 4.5 m (15 ft).

Parking Assist Switch

The parking assist can be enabled and disabled by pressing the parking assist switch. By engaging the reverse gear the parking assist can be activated. By pressing the parking assist switch the parking assist can be disabled again.

Parking Assist Switch Indicator (if equipped)

The indicator in the parking assist switch shows the status of the parking assist. If the indicator is ON, the parking assist is enabled.

Parallel Parking Assist Switch

The parallel parking assist can be activated and deactivated by pressing the parallel parking assist switch.

Parking Assist Operation

For traditional parking assist operation, refer to Parking Assist description and operation

Parallel Parking Assist Operation

The parallel parking assist system aids the driver when attempting a parallel parking maneuver. The parking assist control module uses the parallel parking assist sensors located in the front fascia, along with the front and rear parking assist sensors, to guide the driver into a parking space.

The parallel parking assist switch is used to initiate the parallel parking assist system when traveling at speeds below approximately 30 km/h (18 mph) (refer to owners manual for exact speed). While driving along a row of vehicles in which the driver wishes to parallel park, the parallel parking assist switch is pressed. This will enable the parallel parking assist system and the parking assist control module will begin seeking potential parking spots using the parallel parking assist sensor.

When a parking spot of suitable size is found, the parking assist control module will display a stop message on the driver information center. The driver accepts the decision by stopping the vehicle. The system calculates the optimal path into the parking lot and will then guide the vehicle into the chosen spot by taking over the steering control from the driver. The driver only needs to shift gears, brake and accelerate following the instructions given on the driver information center. Once in the spot, the parking assist control module uses the front and rear park assist sensors to center the vehicle in the parking spot.

If the parallel parking assist system is unable to complete a parallel parking maneuver, a message indicating that

the maneuver has been aborted will be displayed on the driver information center.

Parking Assist System Driver Information Center Messages