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‌SPECIFICATIONS

FASTENER SPECIFICATIONS

ACCESSORIES & EQUIPMENT

Fixed and Moveable Windows - Volt

Reusable Threaded Fastener Tightening Specifications

SCHEMATIC WIRING DIAGRAMS

MOVEABLE WINDOW WIRING SCHEMATICS

Driver

Fig. 1: Driver

Courtesy of GENERAL MOTORS COMPANY

Passenger

Fig. 2: Passenger

Courtesy of GENERAL MOTORS COMPANY

Rear

Fig. 3: Rear

Courtesy of GENERAL MOTORS COMPANY DEFOGGER WIRING SCHEMATICS

Defogger

Fig. 4: Defogger

Courtesy of GENERAL MOTORS COMPANY

DIAGNOSTIC INFORMATION AND PROCEDURES

DTC B0283: REAR DEFOGGER CIRCUIT

Diagnostic Instructions

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

Review the description of Strategy Based Diagnosis: Strategy Based Diagnosis

An overview of each diagnostic category can be found here: Diagnostic Procedure Instructions

DTC Descriptor

DTC B0283

Rear Defogger Circuit

Symptom Byte Information: Symptom Byte List

Diagnostic Fault Information

Circuit/System Description

For an overview of the component/system, refer to: Rear Window Defogger Description and Operation

Conditions for Running the DTC

Ignition - On/Vehicle - In Service Mode

Conditions for Setting the DTC

B0283 02 Control Circuit = Short to Ground

B0283 05 Control Circuit = Open or Short to Battery

Actions Taken When the DTC Sets

B0283 02 E18 Rear Defogger Grid = Disabled

B0283 05 E18 Rear Defogger Grid = Disabled or Always On

Conditions for Clearing the DTC

A current DTC will clear when the diagnostic runs and passes.

A history DTC will clear after 50 consecutive malfunction-free ignition cycles.

Reference Information

Schematic Reference

Defogger Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Component View Reference

Front of Vehicle/Engine Compartment Component Views

Electrical Information Reference

Circuit Testing

Connector Repairs

Relay Replacement (Attached to Wire Harness) Relay Replacement (Within an Electrical Center) Testing for Intermittent Conditions and Poor Connections

Wiring Repairs

Scan Tool Reference

Control Module References

Circuit/System Verification

1. Ignition - On/Vehicle - In Service Mode

2. Perform the scan tool control function: Rear Defogger - On and Off Verify the component turns On and Off: E18 Rear Defogger Grid

If the component does not turn On and Off

Refer to: Circuit/System Testing

If the component turns On and Off

3. All OK.

Circuit/System Testing

NOTE: It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.

1. Ignition/Vehicle & All vehicle systems - Off

2. Remove the component: KR5 Rear Defogger Relay

3. Test for less than 10 ohms between the test points: Ground circuit terminal 85 & Ground

If 10 ohms or greater

1. Disconnect Ground Connection

2. Test for less than 2 ohms between the test points: Ground circuit terminal 85 & Ground Connection If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Repair the open/high resistance in the ground connection.

If less than 10 ohms

4. Connect a test lamp between the test points: Control circuit terminal 86 & Ground circuit terminal 85

5. Ignition - On/Vehicle - In Service Mode

6. Perform the scan tool control function: Rear Defogger - On and Off Verify the test lamp turns On and Off.

If the test lamp is always Off

1. Ignition/Vehicle - Off & Remove - Test lamp

2. Disconnect the electrical connector: K33 HVAC Control Module

3. Test for infinite resistance between the test points: Control circuit terminal 86 @ Relay Socket & Ground

If less than infinite resistance - Repair the short to ground on the circuit. If infinite resistance

4. Test for less than 2 ohms between the test points: Control circuit terminal 86 @ Relay Socket & Terminal 19 X2 @ Control module harness

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Replace the component: K33 HVAC Control Module

If the test lamp is always On

1. Ignition/Vehicle - Off & Remove - Test lamp

2. Disconnect the electrical connector: K33 HVAC Control Module

3. Ignition - On/Vehicle - In Service Mode

4. Test for less than 1 V between the test points: Control circuit terminal 86 @ Relay Socket & Ground If 1 V or greater - Repair the short to voltage on the circuit.

If less than 1 V - Replace the component: K33 HVAC Control Module

If the test lamp turns On and Off

7. Test or replace the component: KR5 Rear Defogger Relay

Component Testing

Relay Test

1. Ignition/Vehicle - Off

2. Remove the component: KR5 Rear Defogger Relay

3. Test for 70 to 110 ohms between the test points: Component terminal 85 & 86

If not between 70 and 110 ohms

Replace the component: KR5 Rear Defogger Relay

If between 70 and 110 ohms

4. Test for infinite resistance between the test points: Component terminal 30 & 85

Component terminal 30 & 86

Component terminal 30 & 87

Component terminal 85 & 87

If less than infinite resistance

Replace the component: KR5 Rear Defogger Relay

If infinite resistance

5. Connect a 3 A fused jumper wire between the test points: Component terminal 86 & 12 V Connect a jumper wire between the test points: Component terminal 85 & Ground

6. Test for less than 2 ohms between the test points: Component terminal 30 & 87

If 2 ohms or greater

Replace the component: KR5 Rear Defogger Relay

If less than 2 ohms

7. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification

Refer to Relay Replacement (Attached to Wire Harness) Relay Replacement (Within an Electrical Center)

For control module replacement, programming, and setup refer to: Control Module References

DTC B316B, B317A, B318A, OR B319A: WINDOW SWITCHES

Diagnostic Instructions

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

Review the description of Strategy Based Diagnosis: Strategy Based Diagnosis

An overview of each diagnostic category can be found here: Diagnostic Procedure Instructions

DTC Descriptor

DTC B316B

Driver Window Switch

DTC B317A

Passenger Window Switch

DTC B318A

Left Rear Window Switch

DTC B319A

Right Rear Window Switch

Symptom Byte Information: Symptom Byte List

Diagnostic Fault Information

Circuit/System Description

For an overview of the component/system, refer to: Power Windows Description and Operation

Conditions for Running the DTC

Ignition - On/Vehicle - In Service Mode

Conditions for Setting the DTC

B316B 00

Control module K9 detects: Right Front Window Switch @ S146 Window/Outside Rearview Mirror Switch - Driver = Switch Stuck - For greater than 60 s

Control module K9 detects: Left Rear Window Switch @ S146 Window/Outside Rearview Mirror Switch - Driver = Switch Stuck - For greater than 60 s

Control module K9 detects: Right Rear Window Switch @ S146 Window/Outside Rearview Mirror Switch - Driver = Switch Stuck - For greater than 60 s

B316B 02

Control module K9 detects: Signal - Down @ M74D Window Motor - Driver = Short to Ground - For greater than 60 s

Control module K9 detects: Signal - Up @ M74D Window Motor - Driver = Short to Ground - For greater than 60 s

B316B 39

Control module K9 detects: S146 Window/Outside Rearview Mirror Switch - Driver = Signal Erratic

B317A 02

Control module K9 detects: S79P Window Switch - Passenger = Switch Stuck - For greater than 60 s

B318A 02

Control module K9 detects: S79LR Window Switch - Left Rear = Switch Stuck - For greater than 60 s

B319A 02

Control module K9 detects: S79RR Window Switch - Right Rear = Switch Stuck - For greater than 60 s

Actions Taken When the DTC Sets Window Switch - Malfunction Conditions for Clearing the DTC

B316B 00, B316B 02, B317A 02, B318A 02, B319A 02

A current DTC will clear when the diagnostic runs and passes.

A history DTC will clear after 50 consecutive malfunction-free ignition cycles.

B316B 39

If set as a current DTC - Replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

Reference Information

Schematic Reference

Moveable Window Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Component View Reference

Door Component Views

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References

Circuit/System Verification

1. Ignition - On/Vehicle - In Service Mode

2. S146 Window/Outside Rearview Mirror Switch - Driver - Driver Left Front Window Switch - Not Pressed Verify the scan tool parameter:

Driver Window Main Control Down Switch = Inactive Driver Window Main Control Up Switch = Inactive

Driver Window Main Control Express Switch = Inactive

If not the specified state

Refer to: Circuit/System Testing

If the specified state

3. S146 Window/Outside Rearview Mirror Switch - Driver - No Button Pressed Verify the scan tool parameter:

Left Rear Window Main Control Down Switch = Inactive

Left Rear Window Main Control Express Switch = Inactive

Left Rear Window Main Control Up Switch = Inactive

Right Rear Window Main Control Down Switch = Inactive

Right Rear Window Main Control Express Switch = Inactive Right Rear Window Main Control Up Switch = Inactive

Front Passenger Window Main Control Down Switch = Inactive

Front Passenger Window Main Control Express Switch = Inactive Front Passenger Window Main Control Up Switch = Inactive

If not the specified state

Test or replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

If the specified state

4. Operate the component: S146 Window/Outside Rearview Mirror Switch - Driver - Driver Left Front Window Switch - Pressed & Pulled

Verify the scan tool parameter:

Driver Window Main Control Down Switch = Active Driver Window Main Control Up Switch = Active

Driver Window Main Control Express Switch = Active

If not the specified state

Refer to: Circuit/System Testing

If the specified state

5. Operate the component: S146 Window/Outside Rearview Mirror Switch - Driver - Left Rear Window Switch - Pressed & Pulled

Verify the scan tool parameter:

Left Rear Window Main Control Down Switch = Active

Left Rear Window Main Control Express Switch = Active Left Rear Window Main Control Up Switch = Active

If not the specified state

Test or replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

If the specified state

6. Operate the component: S146 Window/Outside Rearview Mirror Switch - Driver - Right Rear Window Switch

- Pressed & Pulled

Verify the scan tool parameter:

Right Rear Window Main Control Down Switch = Active

Right Rear Window Main Control Express Switch = Active Right Rear Window Main Control Up Switch = Active

If not the specified state

Test or replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

If the specified state

7. Operate the component: S146 Window/Outside Rearview Mirror Switch - Driver - Right Front Window Switch - Pressed & Pulled

Verify the scan tool parameter:

Front Passenger Window Main Control Down Switch = Active

Front Passenger Window Main Control Express Switch = Active Front Passenger Window Main Control Up Switch = Active

If not the specified state

Test or replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

If the specified state

8. S79P Window Switch - Passenger - Not Pressed

Verify the scan tool parameter: Passenger Window Switch at Door = Inactive

If not the specified state

Test or replace the component: S79P Window Switch - Passenger

If the specified state

9. Operate the component: S79P Window Switch - Passenger - Pressed & Pulled Verify the scan tool parameter:

Passenger Window Switch at Door = Up

Passenger Window Switch at Door = Down

Passenger Window Switch at Door = Express Down

If not the specified state

Test or replace the component: S79P Window Switch - Passenger

If the specified state

10. S79LR Window Switch - Left Rear - Not Pressed

Verify the scan tool parameter: Left Rear Window Switch at Door = Inactive

If not the specified state

Test or replace the component: S79LR Window Switch - Left Rear

If the specified state

11. Operate the component: S79LR Window Switch - Left Rear - Pressed & Pulled Verify the scan tool parameter:

Left Rear Window Switch at Door = Up

Left Rear Window Switch at Door = Down

Left Rear Window Switch at Door = Express Down

If not the specified state

Test or replace the component: S79LR Window Switch - Left Rear

If the specified state

12. S79RR Window Switch - Right Rear - Not Pressed

Verify the scan tool parameter: Right Rear Window Switch at Door = Inactive

If not the specified state

Test or replace the component: S79RR Window Switch - Right Rear

If the specified state

13. Operate the component: S79RR Window Switch - Right Rear - Pressed & Pulled Verify the scan tool parameter:

Right Rear Window Switch at Door = Up

Right Rear Window Switch at Door = Down

Right Rear Window Switch at Door = Express Down

If not the specified state

Test or replace the component: S79RR Window Switch - Right Rear

If the specified state

14. All OK.

Circuit/System Testing

NOTE: It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.

1. Ignition/Vehicle & All vehicle systems - Off

2. Disconnect the electrical connector: S146 Window/Outside Rearview Mirror Switch - Driver

3. Test for less than 10 ohms between the test points: Ground circuit terminal 24 & Ground

If 10 ohms or greater

1. Disconnect Ground Connection

2. Test for less than 2 ohms between the test points: Ground circuit terminal 24 @ Component harness & Ground Connection

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Repair the open/high resistance in the ground connection.

If less than 10 ohms

4. Ignition - On/Vehicle - In Service Mode

5. Verify a test lamp turns On between the test points: B+ circuit terminal 23 & Ground

If the test lamp does not turn On and the circuit fuse is OK

1. Ignition/Vehicle - Off & Remove - Test lamp

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Verify the fuse is OK and there is voltage at the fuse.

If the test lamp does not turn On and the circuit fuse is open

1. Ignition/Vehicle - Off & Remove - Test lamp

2. Test for infinite resistance between the test points: B+ circuit terminal 23 & Ground If less than infinite resistance - Repair the short to ground on the circuit.

If infinite resistance - Replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

If the test lamp turns On

6. Verify the scan tool parameter: Driver Window Main Control Down Switch = Inactive

If not the specified state

1. Ignition/Vehicle - Off

2. Disconnect the electrical connector: M74D Window Motor - Driver

3. Test for infinite resistance between the test points: Signal circuit terminal 1 @ Component harness & Ground

If less than infinite resistance - Repair the short to ground on the circuit.

If infinite resistance - Replace the component: M74D Window Motor - Driver

If the specified state

7. Momentarily connect a 3 A fused jumper wire between the test points: Signal circuit terminal 1 & Ground circuit terminal 24

Verify the scan tool parameter: Driver Window Main Control Down Switch = Active

If not the specified state

1. Ignition/Vehicle - Off & Remove - Jumper wire(s)

2. Disconnect the electrical connector: M74D Window Motor - Driver

3. Ignition - On/Vehicle - In Service Mode

4. Test for less than 1 V between the test points: Signal circuit terminal 1 @ Component harness & Ground If 1 V or greater - Repair the short to voltage on the circuit.

If less than 1 V

5. Ignition/Vehicle - Off

6. Test for less than 2 ohms between the test points: Signal circuit terminal 1 @ Component harness & Signal circuit terminal 7 @ M74D Window Motor - Driver

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Replace the component: M74D Window Motor - Driver

If the specified state

8. Verify the scan tool parameter: Driver Window Main Control Up Switch = Inactive

If not the specified state

1. Ignition/Vehicle - Off

2. Disconnect the electrical connector: M74D Window Motor - Driver

3. Test for infinite resistance between the test points: Signal circuit terminal 11 @ Component harness & Ground

If less than infinite resistance - Repair the short to ground on the circuit.

If infinite resistance - Replace the component: M74D Window Motor - Driver

If the specified state

9. Momentarily connect a 3 A fused jumper wire between the test points: Signal circuit terminal 11 & Ground circuit terminal 24

Verify the scan tool parameter: Driver Window Main Control Up Switch = Active

If not the specified state

1. Ignition/Vehicle - Off & Remove - Jumper wire(s)

2. Disconnect the electrical connector: M74D Window Motor - Driver

3. Ignition - On/Vehicle - In Service Mode

4. Test for less than 1 V between the test points: Signal circuit terminal 11 @ Component harness & Ground

If 1 V or greater - Repair the short to voltage on the circuit. If less than 1 V

5. Ignition/Vehicle - Off

6. Test for less than 2 ohms between the test points: Signal circuit terminal 11 @ Component harness & Signal circuit terminal 3 @ M74D Window Motor - Driver

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Replace the component: M74D Window Motor - Driver

If the specified state

10. Test for greater than 10 V between the test points: Signal circuit terminal 5 @ Component harness & Ground

If 10 V or less

1. Ignition/Vehicle - Off

2. Disconnect the electrical connector: M74D Window Motor - Driver

3. Test for infinite resistance between the test points: Signal circuit terminal 5 @ Component harness & Ground

If less than infinite resistance - Repair the short to ground on the circuit. If less than infinite resistance

1. Ignition/Vehicle - Off

2. Test for less than 2 ohms between the test points: Signal circuit terminal 5 @ Component harness & Signal circuit terminal 5 @ M74D Window Motor - Driver

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Replace the component: M74D Window Motor - Driver

If the specified state

11. Test or replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification

Refer to Front Side Door Window Switch Replacement (Right Side)

Refer to Front Side Door Window Control Switch Replacement

Refer to Rear Side Door Window Switch Replacement

Refer to Front Side Door Window Regulator Replacement

Refer to Rear Side Door Window Regulator Replacement

DTC B3205: DRIVER WINDOW MOTOR

Diagnostic Instructions

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

Review the description of Strategy Based Diagnosis: Strategy Based Diagnosis

An overview of each diagnostic category can be found here: Diagnostic Procedure Instructions

DTC Descriptor

DTC B3205

Driver Window Motor

Symptom Byte Information: Symptom Byte List

Circuit/System Description

For an overview of the component/system, refer to: Power Windows Description and Operation

Conditions for Running the DTC

Ignition - On/Vehicle - In Service Mode

Conditions for Setting the DTC

B3205 00

M74D Window Motor - Driver = Incompatible Hardware or Equipment

B3205 09

M74D Window Motor - Driver = Internal Malfunction

B3205 42

Calibration Update = Failed

B3205 4B

Battery - Disconnected/Replaced

Front Side Door Wiring Harness - Disconnected M74D Window Motor - Driver - Disconnected

Actions Taken When the DTC Sets

B3205 00, B3205 39, B3205 42

M74D Window Motor - Driver = Inoperative

B3205 4B

Window Express Up System Not Initialized

Driver Information Display = Open, then Close Driver Window

Conditions for Clearing the DTC

B3205 00

M74D Window Motor - Driver - Replaced - A current DTC can be cleared after the procedure is performed.

B3205 39, B3205 42

M74D Window Motor - Driver - Replaced - A current DTC can be cleared after the procedure is performed.

B3205 4B

M74D Window Motor - Driver - Normalized - A current DTC can be cleared after the procedure is performed.

Reference Information

Schematic Reference

Moveable Window Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Component View Reference

Door Component Views

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References

Circuit/System Verification

1. Ignition - On/Vehicle - In Service Mode

2. Perform the scan tool control function: Driver Window Motor - Up & Down

Verify the component works as specified: M74D Window Motor - Driver = Up & Down

If not the specified state

Test or replace the component: M74D Window Motor - Driver

If the specified state

3. Perform the scan tool control function: Driver Window Motor - Down

4. Operate the component: S146 Window/Outside Rearview Mirror Switch - Driver - Pulled = Up & Release Verify the component works as specified: M74D Window Motor - Driver = Express Up

If not the specified state

Use the following procedure: Window Motor Programming - Express Function

If the specified state

5. Ignition/Vehicle & All vehicle systems - Off - For greater than 2 min

6. Ignition - On/Vehicle - In Service Mode

7. Perform the scan tool control function: Driver Window Motor - Down

8. Operate the component: S146 Window/Outside Rearview Mirror Switch - Driver - Pulled = Up & Release Verify the component works as specified: M74D Window Motor - Driver = Express Up

If not the specified state

Test or replace the component: M74D Window Motor - Driver.

If the specified state

9. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification

Refer to Front Side Door Window Regulator Replacement SYMPTOMS - FIXED AND MOVEABLE WINDOWS

Important Preliminary Checks Before Starting:

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 modules can communicate via the serial data link.

2. Review the power window system operation or rear window defogger system operation in order to familiarize yourself with the system functions. Refer to the following:

Rear Window Defogger Description and Operation Power Windows Description and Operation

Visual/Physical Inspection

Inspect for aftermarket devices which could affect the operation of the rear window defogger. Refer to

Checking Aftermarket Accessories .

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

Intermittent

NOTE: Inspect for proper installation of electrical components if an intermittent condition exists. Inspect for aftermarket theft deterrent devices, lights, and cellular phones. Ensure that no aftermarket equipment is connected to the class 2 circuit. If you can not locate an intermittent condition, a cellular phone signal may cause the condition. Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

The problem may or may not turn ON the SERVICE VEHICLE SOON indicator or store a DTC. Do not use the symptom tables to diagnose intermittent conditions. The malfunction must be present in order to locate the problem.

Poor electrical connections or wiring cause most intermittent conditions. Perform a careful visual/physical check for the following conditions:

Poor mating of the connector halves or a terminal not fully seated in the connector body An improperly formed or damaged terminal

Reform or replace connector terminals in the problem circuit in order to ensure proper contact tension.

Poor terminal to wire connection requires removing the terminal from the connector body in order to perform the check.

Use a scan tool in order to help detect intermittent conditions. The scan tool has several features that can be used to locate an intermittent condition. The snapshot feature can capture and store data parameters within the scan tool when the malfunction occurs. This information can then be reviewed in order to see what caused the malfunction.

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

Rear Window Defogger Malfunction Power Windows Malfunction

REAR WINDOW DEFOGGER MALFUNCTION

Diagnostic Instructions

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

Review the description of Strategy Based Diagnosis: Strategy Based Diagnosis

An overview of each diagnostic category can be found here: Diagnostic Procedure Instructions

Diagnostic Fault Information

Circuit/System Description

For an overview of the component/system, refer to: Rear Window Defogger Description and Operation

Reference Information

Schematic Reference

Defogger Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Component View Reference

Electrical Center Identification Views

Luggage Compartment/Rear of Vehicle Component Views

Electrical Information Reference

Circuit Testing

Connector Repairs

Relay Replacement (Attached to Wire Harness) Relay Replacement (Within an Electrical Center) Testing for Intermittent Conditions and Poor Connections

Wiring Repairs

Scan Tool Reference

Control Module References

Circuit/System Verification

1. Ignition - On/Vehicle - In Service Mode

2. Operate the component: Rear Defogger Switch - Pressed

Verify the scan tool parameter: Rear Defogger Switch = Off & On

If not the specified state

Replace the component: A26 HVAC Controls

If the specified state

3. Perform the scan tool control function: Rear Defogger - On and Off Verify the component turns On and Off: E18 Rear Defogger Grid

If the component does not turn On and Off

Refer to: Circuit/System Testing

If the component turns On and Off

4. Operate the component: Rear Defogger Switch - Pressed

5. Verify the component turns On and Off: Rear Defogger Indicator

If the component does not turn On and Off

Replace the component: A26 HVAC Controls

If the component turns On and Off

6. All OK.

Circuit/System Testing

NOTE: It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.

1. Ignition/Vehicle & All vehicle systems - Off

2. Remove the component: KR5 Rear Defogger Relay

3. Test for less than 10 ohms between the test points: Ground circuit terminal 85 & Ground

If 10 ohms or greater

1. Disconnect Ground Connection

2. Test for less than 2 ohms between the test points: Ground circuit terminal 85 & Ground Connection If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Repair the open/high resistance in the ground connection.

If less than 10 ohms

4. Connect a test lamp between the test points: Control circuit terminal 86 & Ground circuit terminal 85

5. Ignition - On/Vehicle - In Service Mode

6. Perform the scan tool control function: Rear Defogger - On and Off Verify the test lamp turns On and Off.

If the test lamp is always Off

1. Ignition/Vehicle - Off & Remove - Test lamp

2. Disconnect the electrical connector: X2 @ K33 HVAC Control Module

3. Test for infinite resistance between the test points: Control circuit terminal 86 @ Relay Socket & Ground

If less than infinite resistance - Repair the short to ground on the circuit. If infinite resistance

4. Test for less than 2 ohms between the test points: Control circuit terminal 86 @ Relay Socket & Terminal 19 X2 @ Control module harness

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Replace the component: K33 HVAC Control Module

If the test lamp is always On

1. Ignition/Vehicle - Off & Remove - Test lamp

2. Disconnect the electrical connector: K33 HVAC Control Module

3. Ignition - On/Vehicle - In Service Mode

4. Test for less than 1 V between the test points: Control circuit terminal 86 @ Relay Socket & Ground If 1 V or greater - Repair the short to voltage on the circuit.

If less than 1 V - Replace the component: K33 HVAC Control Module

If the test lamp turns On and Off

7. Verify a test lamp turns On between the test points: B+ circuit terminal 30 & Ground

If the test lamp does not turn On and the circuit fuse is OK

1. Ignition/Vehicle - Off & Remove - Test lamp

2. Test for less than 2 ohms between the test points: B+ circuit terminal 30 @ Relay Socket & Output terminal @ Fuse

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Verify the fuse is OK and there is voltage at the fuse.

If the test lamp does not turn On and the circuit fuse is open

1. Ignition/Vehicle - Off & Remove - Test lamp

2. Test for infinite resistance between the test points: B+ circuit terminal 30 & Ground If less than infinite resistance - Repair the short to ground on the circuit.

If infinite resistance

3. Disconnect the electrical connector: X1 & X2 @ E18 Rear Defogger Grid

4. Test for infinite resistance between the test points: Control circuit terminal 87 @ Relay Socket & Ground

If less than infinite resistance - Repair the short to ground on the circuit. If infinite resistance

5. Replace the component: Fuse

6. Install the component: KR5 Rear Defogger Relay

7. Connect a test lamp between the test points: Control circuit terminal 1 X1 & Ground circuit terminal 1 X2

8. Ignition - On/Vehicle - In Service Mode

9. Perform the scan tool control function: Rear Defogger - On and Off Verify the test lamp turns On and Off.

If the test lamp does not turn On and Off - Test or replace the component: KR5 Rear Defogger Relay

If the test lamp turns On and Off - Test or replace the component: E18 Rear Defogger Grid

If the test lamp turns On

8. Momentarily connect a 40 A fused jumper wire between the test points: B+ circuit terminal 30 & Control circuit terminal 87

Verify the component does not turn On and Off when connecting and disconnecting the jumper wire: E18 Rear Defogger Grid

If the component turns On and Off

Test or replace the component: KR5 Rear Defogger Relay

If the component does not turn On and Off

9. Ignition/Vehicle & All vehicle systems - Off

10. Install the component: KR5 Rear Defogger Relay

11. Disconnect the electrical connector: X1 & X2 @ E18 Rear Defogger Grid

12. Test for less than 10 ohms between the test points: Ground circuit terminal 1 X2 & Ground

If 10 ohms or greater

1. Disconnect Ground Connection

2. Test for less than 2 ohms between the test points: Ground circuit terminal 1 X2 @ Component harness & Ground Connection

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Repair the open/high resistance in the ground connection.

If less than 10 ohms

13. Connect a test lamp between the test points: Control circuit terminal 1 X1 & Ground circuit terminal 1 X2

14. Ignition - On/Vehicle - In Service Mode

15. Perform the scan tool control function: Rear Defogger - On and Off Verify the test lamp turns On and Off.

If the test lamp is always Off

Repair the open/high resistance in the circuit: Control circuit

If the test lamp is always On

Repair the short to voltage on the circuit: Control circuit

If the test lamp turns On and Off

16. Test or replace the component: E18 Rear Defogger Grid

Component Testing

Relay Test

1. Ignition/Vehicle - Off

2. Remove the component: KR5 Rear Defogger Relay

3. Test for 70 to 110 ohms between the test points: Component terminal 85 & Component terminal 86

If not between 70 and 110 ohms

Replace the component: KR5 Rear Defogger Relay

If between 70 and 110 ohms

4. Test for infinite resistance between the test points: Component terminal 30 & 85

Component terminal 30 & 86

Component terminal 30 & 87

Component terminal 85 & 87

If less than infinite resistance

Replace the component: KR5 Rear Defogger Relay

If infinite resistance

5. Connect a 3 A fused jumper wire between the test points: Component terminal 86 & 12 V

Connect a jumper wire between the test points: Component terminal 85 & Ground

6. Test for less than 2 ohms between the test points: Component terminal 30 & Component terminal 87

If 2 ohms or greater

Replace the component: KR5 Rear Defogger Relay

If less than 2 ohms

7. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification

Refer to Relay Replacement (Attached to Wire Harness) Relay Replacement (Within an Electrical Center)

Refer to Rear Window Replacement

For control module replacement, programming, and setup refer to: Control Module References

POWER WINDOWS MALFUNCTION

Diagnostic Instructions

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

Review the description of Strategy Based Diagnosis: Strategy Based Diagnosis

An overview of each diagnostic category can be found here: Diagnostic Procedure Instructions

Diagnostic Fault Information

Circuit/System Description

For an overview of the component/system, refer to: Power Windows Description and Operation

Diagnostic Aids

M74D Window Motor - Driver - Window Express Up System Not Initialized Battery - Disconnected/Replaced

Front Side Door Wiring Harness - Disconnected M74 Window Motor - Disconnected

M74D Window Motor - Driver - Normalized - Window Motor Programming - Express Function

Reference Information

Schematic Reference

Moveable Window Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Component View Reference

Door Component Views

Electrical Information Reference

Circuit Testing

Connector Repairs

Testing for Intermittent Conditions and Poor Connections Wiring Repairs

Scan Tool Reference

Control Module References

Circuit/System Verification

1. Ignition - On/Vehicle - In Service Mode

2. Perform the scan tool control function: Driver Window Motor - Up & Down Verify the component operates in both directions: M74D Window Motor - Driver

If not the specified state

Refer to: Circuit/System Testing - Test 1

If the specified state

3. Operate the component: Driver Left Front Window Switch - Pressed & Pulled

Verify the component works as specified: M74D Window Motor - Driver = Up/Express Up/Down/Express Down

If not the specified state

Refer to: Circuit/System Testing - Test 2

If the specified state

4. S146 Window/Outside Rearview Mirror Switch - Driver - Not Pressed Verify the scan tool parameter:

Left Rear Window Main Control Down Switch = Inactive

Left Rear Window Main Control Express Switch = Inactive Left Rear Window Main Control Up Switch = Inactive

Right Rear Window Main Control Down Switch = Inactive

Right Rear Window Main Control Express Switch = Inactive Right Rear Window Main Control Up Switch = Inactive

Front Passenger Window Main Control Down Switch = Inactive

Front Passenger Window Main Control Express Switch = Inactive Front Passenger Window Main Control Up Switch = Inactive

If not the specified state

Test or replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

If the specified state

5. Operate the component: S146 Window/Outside Rearview Mirror Switch - Driver-Left Rear Window Switch - Pressed & Pulled

Verify the scan tool parameter:

Left Rear Window Main Control Down Switch = Active

Left Rear Window Main Control Express Switch = Active Left Rear Window Main Control Up Switch = Active

If not the specified state

Test or replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

If the specified state

6. Operate the component: S146 Window/Outside Rearview Mirror Switch - Driver-Right Rear Window Switch - Pressed & Pulled

Verify the scan tool parameter:

Right Rear Window Main Control Down Switch = Active

Right Rear Window Main Control Express Switch = Active Right Rear Window Main Control Up Switch = Active

If not the specified state

Test or replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

If the specified state

7. Operate the component: S146 Window/Outside Rearview Mirror Switch - Driver-Right Front Window Switch

- Pressed & Pulled

Verify the scan tool parameter:

Front Passenger Window Main Control Down Switch = Active

Front Passenger Window Main Control Express Switch = Active Front Passenger Window Main Control Up Switch = Active

If not the specified state

Test or replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

If the specified state

8. Perform the scan tool control function: Passenger Window Motor - Up & Down

Verify the component works as specified: M74P Window Motor - Passenger = Up & Down

If not the specified state

Refer to: Circuit/System Testing - Test 3

If the specified state

9. Perform the scan tool control function: Left Rear Window Motor - Up & Down

Verify the component works as specified: M74LR Window Motor - Left Rear = Up & Down

If not the specified state

Refer to: Circuit/System Testing - Test 3

If the specified state

10. Perform the scan tool control function: Right Rear Window Motor - Up & Down

Verify the component works as specified: M74RR Window Motor - Right Rear = Up & Down

If not the specified state

Refer to: Circuit/System Testing - Test 3

If the specified state

11. All OK.

Circuit/System Testing

Test 1

NOTE: It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.

1. Ignition/Vehicle & All vehicle systems - Off

2. Disconnect the electrical connector: M74D Window Motor - Driver

3. Test for less than 10 ohms between the test points: Ground circuit terminal 1 & Ground

If 10 ohms or greater

1. Disconnect Ground Connection

2. Test for less than 2 ohms between the test points: Ground circuit terminal 1 @ Component harness & Ground Connection

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Repair the open/high resistance in the ground connection.

If less than 10 ohms

4. Ignition - On/Vehicle - In Service Mode

5. Verify a test lamp turns On between the test points: B+ circuit terminal 2 & Ground

If the test lamp does not turn On and the circuit fuse is OK

1. Ignition/Vehicle - Off & Remove - Test lamp

2. Test for less than 2 ohms between the test points: M74D Window Motor - Driver B+ circuit terminal 2 @ Output terminal @ F28UA Fuse

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Verify the fuse is OK and there is voltage at the fuse.

If the test lamp does not turn On and the circuit fuse is open

1. Ignition/Vehicle - Off & Remove - Test lamp

2. Test for infinite resistance between the test points: B+ circuit terminal 2 & Ground If less than infinite resistance - Repair the short to ground on the circuit.

If infinite resistance - Replace the component: M74D Window Motor - Driver

If the test lamp turns On

6. Test or replace the component: M74D Window Motor - Driver

Test 2

NOTE: It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.

1. Ignition/Vehicle & All vehicle systems - Off

2. Disconnect the electrical connector: S146 Window/Outside Rearview Mirror Switch - Driver

3. Test for less than 10 ohms between the test points: Ground circuit terminal 24 & Ground

If 10 ohms or greater

1. Disconnect Ground Connection

2. Test for less than 2 ohms between the test points: Ground circuit terminal 24 @ Component harness & Ground Connection

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Repair the open/high resistance in the ground connection.

If less than 10 ohms

4. Ignition - On/Vehicle - In Service Mode

5. Verify a test lamp turns On between the test points: B+ circuit terminal 23 & Ground

If the test lamp does not turn On and the circuit fuse is OK

1. Ignition/Vehicle - Off & Remove - Test lamp

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Verify the fuse is OK and there is voltage at the fuse.

If the test lamp does not turn On and the circuit fuse is open

1. Ignition/Vehicle - Off & Remove - Test lamp

2. Test for infinite resistance between the test points: B+ circuit terminal 23 & Ground If less than infinite resistance - Repair the short to ground on the circuit.

If infinite resistance - Replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

If the test lamp turns On

6. Verify the scan tool parameter: Driver Window Main Control Down Switch = Inactive

If not the specified state

1. Ignition/Vehicle - Off

2. Disconnect the electrical connector: M74D Window Motor - Driver

3. Test for infinite resistance between the test points: Signal circuit terminal 1 @ Component harness & Ground

If less than infinite resistance - Repair the short to ground on the circuit.

If infinite resistance - Replace the component: M74D Window Motor - Driver

If the specified state

7. Momentarily connect a 3 A fused jumper wire between the test points: Signal circuit terminal 1 & Ground circuit terminal 24

Verify the scan tool parameter: Driver Window Main Control Down Switch = Active

If not the specified state

1. Ignition/Vehicle - Off & Remove - Jumper wire(s)

2. Disconnect the electrical connector: M74D Window Motor - Driver

3. Ignition - On/Vehicle - In Service Mode

4. Test for less than 1 V between the test points: Signal circuit terminal 1 @ Component harness & Ground If 1 V or greater - Repair the short to voltage on the circuit.

If less than 1 V

5. Ignition/Vehicle - Off

6. Test for less than 2 ohms between the test points: Signal circuit terminal 1 @ Component harness & Terminal 7 @ M74D Window Motor - Driver

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Replace the component: M74D Window Motor - Driver

If the specified state

8. Verify the scan tool parameter: Driver Window Main Control Up Switch = Inactive

If not the specified state

1. Ignition/Vehicle - Off

2. Disconnect the electrical connector: M74D Window Motor - Driver

3. Test for infinite resistance between the test points: Signal circuit terminal 11 @ Component harness & Ground

If less than infinite resistance - Repair the short to ground on the circuit.

If infinite resistance - Replace the component: M74D Window Motor - Driver

If the specified state

9. Momentarily connect a 3 A fused jumper wire between the test points: Signal circuit terminal 11 & Ground circuit terminal 24

Verify the scan tool parameter: Driver Window Main Control Up Switch = Active

If not the specified state

1. Ignition/Vehicle - Off & Remove - Jumper wire(s)

2. Disconnect the electrical connector: M74D Window Motor - Driver

3. Ignition - On/Vehicle - In Service Mode

4. Test for less than 1 V between the test points: Signal circuit terminal 11 @ Component harness & Ground

If 1 V or greater - Repair the short to voltage on the circuit. If less than 1 V

5. Ignition/Vehicle - Off

6. Test for less than 2 ohms between the test points: Signal circuit terminal 11 @ Component harness & Terminal 3 @ M74D Window Motor - Driver

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Replace the component: M74D Window Motor - Driver

If the specified state

10. Test for greater than 10 V between the test points: Signal circuit terminal 5 @ Component harness & Ground

If 10 V or less

1. Ignition/Vehicle - Off

2. Disconnect the electrical connector: M35D Window Motor Module - Driver

3. Test for infinite resistance between the test points: Signal circuit terminal 5 @ Component harness & Ground

If less than infinite resistance - Repair the short to ground on the circuit. If less than infinite resistance

1. Ignition/Vehicle - Off

2. Test for less than 2 ohms between the test points: Signal circuit terminal 5 @ Component harness & Signal circuit terminal 5 @ M35D Window Motor Module - Driver

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Replace the component: M35D Window Motor Module - Driver

If greater than 10 V

11. Test or replace the component: S146 Window/Outside Rearview Mirror Switch - Driver

Test 3

NOTE: It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.

1. Ignition/Vehicle & All vehicle systems - Off

2. Disconnect the appropriate electrical connector: S79P Window Switch - Passenger/S79LR Window Switch - Left Rear/S79RR Window Switch - Right Rear

3. Test for less than 10 ohms between the test points: Ground circuit terminal 7 & Ground

If 10 ohms or greater

1. Disconnect Ground Connection

2. Test for less than 2 ohms between the test points: Ground circuit terminal 7 @ Component harness & Ground Connection

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Repair the open/high resistance in the ground connection.

If less than 10 ohms

4. Ignition - On/Vehicle - In Service Mode

5. Verify a test lamp turns On between the test points: B+ circuit terminal 8 & Ground

If the test lamp does not turn On and the circuit fuse is OK

1. Ignition/Vehicle - Off & Remove - Test lamp

If 2 ohms or greater - Repair the open/high resistance in the circuit.

If less than 2 ohms - Verify the fuse is OK and there is voltage at the fuse.

If the test lamp does not turn On and the circuit fuse is open

1. Ignition/Vehicle - Off & Remove - Test lamp

2. Test for infinite resistance between the test points: B+ circuit terminal 8 & Ground If less than infinite resistance - Repair the short to ground on the circuit.

If infinite resistance - Replace the component: S79 Window Switch

If the test lamp turns On

6. Ignition/Vehicle - Off

7. Connect the electrical connector: S79 Window Switch

8. Disconnect the electrical connector: M74 Window Motor

9. Connect a test lamp between the test points: Control circuit terminal 1 & Control circuit terminal 2

10. Ignition - On/Vehicle - In Service Mode

11. Perform the scan tool control function: Window Motor Verify the test lamp state:

Window Motor - Stop = Test lamp Off Window Motor - Up = Test lamp On Window Motor - Down = Test lamp On

If not the specified state

1. Ignition/Vehicle - Off & Remove - Test lamp

2. Disconnect the electrical connector: S79 Window Switch

3. Ignition - On/Vehicle - In Service Mode

4. Test for less than 1 V between the test points:

Control circuit terminal 1 @ Component harness & Ground Control circuit terminal 2 @ Component harness & Ground If 1 V or greater - Repair the short to voltage on the circuit. If less than 1 V

5. Ignition/Vehicle - Off

6. Test for infinite resistance between the test points:

Control circuit terminal 1 @ Component harness & Ground Control circuit terminal 2 @ Component harness & Ground

If less than infinite resistance - Repair the short to ground on the circuit. If infinite resistance

7. Test for less than 2 ohms between the test points:

Control circuit terminal 1 @ Component harness & Control circuit terminal 10 @ S79 Window Switch

Control circuit terminal 2 @ Component harness & Control circuit terminal 9 @ S79 Window Switch

If 2 ohms or greater - Repair the open/high resistance in the circuit. If less than 2 ohms - Replace the component: S79 Window Switch

If the specified state

12. Test or replace the component: M74 Window Motor

Component Testing

M74P Window Motor - Passenger/M74LR Window Motor - Left Rear/M74RR Window Motor - Right Rear

1. Ignition/Vehicle - Off

2. Disconnect the appropriate electrical connector: M74P Window Motor - Passenger

M74LR Window Motor - Left Rear M74RR Window Motor - Right Rear

3. Connect a 25 A fused jumper wire between the test points: Control terminal 1 & B+

CAUTION: Complete the testing as quickly as possible in order to prevent overheating and damaging the component.

4. Momentarily connect a jumper wire between the test points: Control terminal 2 & Ground Reverse the jumper wires 2 times between the terminals.

Verify the component works as specified: M74 Window Motor = Up & Down

If not the specified state

Replace the component:

M74P Window Motor - Passenger M74LR Window Motor - Left Rear

M74RR Window Motor - Right Rear

If the specified state

5. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification

Refer to Front Side Door Window Switch Replacement (Right Side)

Refer to Front Side Door Window Control Switch Replacement

Refer to Rear Side Door Window Switch Replacement

Refer to Front Side Door Window Regulator Replacement

Refer to Rear Side Door Window Regulator Replacement

SIDE DOOR WINDOW MECHANICAL DIAGNOSIS

REPAIR INSTRUCTIONS

WINDSHIELD REPLACEMENT

Special Tools

BO-24402-A Glass Sealant Remover (Cold Knife)

BO-39032 Stationary Glass Removal Tool Use an adhesive that is approved by GM

For equivalent regional tools, refer to Special Tools

CAUTION: To avoid breakage of the windshield, protect the surrounding area of the part which you are removing or installing.

NOTE: Before cutting out a stationary window, apply a double layer of masking tape around the perimeter of the painted surfaces and the interior trim.

1. Open the hood.

2. Remove Windshield Wiper Arm. Refer to Windshield Wiper Arm Replacement

3. Remove Dash Upper Extension Panel Opening Cover. Refer to Dash Upper Extension Panel Opening Cover Replacement

4. Remove Inside Rearview Mirror. Refer to Inside Rearview Mirror Replacement

5. Remove Front View Camera. Refer to Front View Camera Replacement

6. Disconnect the rain sensor connector, if equipped.

WARNING: If broken glass falls into the defroster outlets, it can be blown into the passenger compartment and cause personal injury.

7. Cover to protect the following parts from broken glass: Upper dash pad

Defroster outlets and A/C outlets Seats and carpeting

Fig. 5: Separating Urethane Adhesive From Window Courtesy of GENERAL MOTORS COMPANY

WARNING: Refer to Glass and Sheet Metal Handling Warning

NOTE: Keep the cutting edge of the tool against the window. Use care Not to damage the window corner retainers. If the window retainers get cut off when removing

the window it will be necessary to tape the window in place until cured.

8. This will allow the urethane adhesive to be separated from the window. Leave a base of urethane on the pinchweld flange.

The only suitable lubrication is clear water.

BO-24402-A Glass Sealant Remover (Cold Knife)

BO-39032 Stationary Glass Removal Tool

Fig. 6: Separating Bottom Of Window Courtesy of GENERAL MOTORS COMPANY

9. Remove the bottom of the windshield from the urethane adhesive using a long utility knife or similar tool. Keep the cutting edge of the utility knife against the glass. Do this from inside the vehicle.

Fig. 7: Windshield

Courtesy of GENERAL MOTORS COMPANY

10. Remove the windshield (1) from the vehicle with an assistant, place the window on a clean soft surface.

Fig. 8: Lower Windshield Molding

Courtesy of GENERAL MOTORS COMPANY

11. Remove the molding (1) from the lower edge of the old windshield if the new windshield is not equipped.

Installation Procedure

1. Install Adhesive. Refer to Adhesive Installation of Windshields

2. Install Dash Upper Extension Panel Opening Cover. Refer to Dash Upper Extension Panel Opening Cover Replacement

3. Install Windshield Wiper Arm. Refer to Windshield Wiper Arm Replacement

4. Install Inside Rearview Mirror. Refer to Inside Rearview Mirror Replacement

5. Install Front View Camera. Refer to Front View Camera Replacement

6. Connect the rain sensor connector, if equipped.

7. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.

8. Close the hood.

FRONT SIDE DOOR WINDOW ADJUSTMENT

Causes of Slow Moving Window

Fig. 9: Internal Detail For Front Door Window Adjustment Courtesy of GENERAL MOTORS COMPANY

WARNING: Disconnect the power window switch when working inside the door. When operated, the Express Up/Down Feature allows the door window to move very quickly, without stopping, which could cause personal injury.

NOTE: Owners may comment that the windows operate slowly when going up or down.

1. Listed below are conditions that may cause a slow moving window.

The window run channel outboard lip at the rearview mirror is rolled over or the window run channel outboard lip at the rear of door frame (2).

The window is not seated in the run channel. The window is misaligned in the opening.

The regulator is misaligned causing misalignment of the window. Inspect the power window motor for being loose.

2. After inspecting the conditions above, do the following: Remove the front door trim panel.

3. Remove the water deflector.

4. Ensure that the window guide is fully seated and clipped.

5. Ensure that the window is fully seated into the window guide run channel.

6. Inspect the window for equal distance between the front and rear run channels.

Adjustment Procedure

1. Inspect for the following conditions before making adjustments.

Using a flat-bladed tool, straighten the run channel lip by pulling it out to its correct position. Use a flat-bladed tool to push the run channel rearward to seat it in the door frame.

Inspect the window guide retainer to window for the proper alignment to the slots in the window. Inspect the window to be straight up and down position.

Fig. 10: Window Regulator Fastener Removal/Installation Sequence Courtesy of GENERAL MOTORS COMPANY

Loosen the nuts that attach the window regulator (1) to the inner door panel, in the specified sequence (2, 3, 4).

CAUTION: Refer to Fastener Caution .

2. Tighten the nuts that attach the front side door window regulator (1) to the inner door panel in the specified sequence (2, 3, 4) to 10 N.m (89 lb in).

3. Inspect the window for proper operation.

4. Install the water deflector.

5. Install the front door trim panel.

FRONT SIDE DOOR WINDOW REPLACEMENT

Fig. 11: Front Side Door Window

Courtesy of GENERAL MOTORS COMPANY

REAR SIDE DOOR WINDOW ADJUSTMENT

Causes of Slow Moving Window

NOTE: Owners may comment that the windows operate slowly when going up or down.

1. Listed below are conditions that may cause a slow moving window:

The window run channel outboard lip at the rear of door frame. The window is not seated in the run channel.

The window is misaligned in the opening.

The regulator is misaligned causing misalignment of the window.

2. After inspecting the conditions above, do the following:

1. Remove the rear door trim panel.

2. Remove the water deflector.

3. Ensure that the window guide is fully seated and clipped.

Ensure that the window is fully seated in the window guide run channel.

4. Inspect the window for equal distance between the front and rear run channels.

5. Inspect the power window motor for being loose.

6. Inspect the window for alignment.

Adjustment Procedure

1. Remove the rear side door trim panel.

Fig. 12: Window Regulator And Fasteners With Removal/Installation Sequence Courtesy of GENERAL MOTORS COMPANY

2. Inspect for the following conditions before making adjustments:

Using a flat-bladed tool, straighten the run channel lip by pulling it out to its correct position. Use a flat-bladed tool to push the run channel rearward to seat it in the door frame.

Inspect the window guide channel to window fasteners to ensure that they are in the proper slots and the window is not tilted forward.

Inspect the window to be straight up and down position.

Loosen the nuts that attach the window regulator (1) to the inner door panel, in the specified sequence (2, 3, 4).

CAUTION: Refer to Fastener Caution .

3. Loosen the nuts that attach the rear side door window regulator (1) to the inner door panel in the specified sequence (2, 3, 4).

Tighten the fasteners to 10 N.m (89 lb in).

4. Inspect the window for proper operation.

5. Install the water deflector.

6. Install the rear door trim panel.

REAR SIDE DOOR WINDOW REPLACEMENT

Fig. 13: Rear Side Door Window

Courtesy of GENERAL MOTORS COMPANY

REAR WINDOW REPLACEMENT

Special Tools

BO-24402-A Glass Sealant Remover (Cold Knife)

BO-39032 Stationary Glass Removal Tool Use an adhesive that is approved by GM

For equivalent regional tools, refer to Special Tools

Removal Procedure

WARNING: Refer to Cracked Window Warning

NOTE: Before cutting out a stationary window, apply a double layer of masking tape around the perimeter of the painted surfaces and the interior trim.

1. Open the liftgate.

2. Remove Liftgate Lower Trim Finish Panel. Refer to Liftgate Lower Trim Finish Panel Replacement

3. Disconnect the electrical connectors.

4. Cover the following parts to protect from broken glass: Seats

Carpeting

WARNING: Refer to Glass and Sheet Metal Handling Warning

5. Using a utility knife, carefully cut the lace (1) from the sides and the top edge of the window to access the urethane adhesive bead, if equipped.

Fig. 14: Separating Urethane Adhesive From Window Courtesy of GENERAL MOTORS COMPANY

NOTE: Keep the cutting edge of the tool against the window. Use care Not to damage the window corner retainers. If the window retainers get cut off when removing the window it will be necessary to tape the window in place until cured.

6. Remove the window from the urethane adhesive.

Leave a base of urethane approximately 2 mm (0.078 in) on the pinch-weld flange.

The only suitable lubrication is clear water.

BO-24402-A Glass Sealant Remover (Cold Knife)

BO-39032 Stationary Glass Removal Tool

NOTE: Keep the cutting edge of the knife/tool against the window. Do this from inside the vehicle.

7. If necessary, use a long utility knife or similar tool to remove the bottom corners of the window from the urethane adhesive.

Fig. 15: Window

Courtesy of GENERAL MOTORS COMPANY

8. With an assistant, remove the window (1) from the vehicle, place the window on a clean soft surface.

Installation Procedure

1. Install adhesive. Refer to Adhesive Installation of Liftgate Windows

2. Connect the electrical connectors.

3. Install Liftgate Lower Trim Finish Panel. Refer to Liftgate Lower Trim Finish Panel Replacement

4. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.

5. Close the liftgate.

FRONT SIDE DOOR WINDOW FRAME REAR APPLIQUE REPLACEMENT

Fig. 16: Front Side Door Window Frame Rear Applique Courtesy of GENERAL MOTORS COMPANY

REAR SIDE DOOR WINDOW FRAME FRONT APPLIQUE REPLACEMENT

Fig. 17: Rear Side Door Window Frame Front Applique Courtesy of GENERAL MOTORS COMPANY

FRONT SIDE DOOR WINDOW CONTROL SWITCH REPLACEMENT

Fig. 18: Front Side Door Window Control Switch Courtesy of GENERAL MOTORS COMPANY

FRONT SIDE DOOR WINDOW SWITCH REPLACEMENT (RIGHT SIDE)

Fig. 19: Front Side Door Window Switch (Right Side) Courtesy of GENERAL MOTORS COMPANY

REAR SIDE DOOR WINDOW SWITCH REPLACEMENT

Fig. 20: Rear Side Door Window Switch Courtesy of GENERAL MOTORS COMPANY

FRONT SIDE DOOR WINDOW REGULATOR REPLACEMENT

Fig. 21: Front Side Door Window Regulator Courtesy of GENERAL MOTORS COMPANY

WINDOW MOTOR PROGRAMMING - EXPRESS FUNCTION

Window Motor Normalized Procedure

A window motor that has not been normalized will no longer perform the express up and express down functions, this may occur during the following conditions:

When a window motor has been disconnected When a door harness has been disconnected

When the battery has been disconnected or replaced

NOTE: When DTC B3205 4B & 3210 4B are set, the following warnings will be displayed on the driver information center:

Open, then Close Driver Window Open, then Close Passenger Window

These warnings will clear once the windows have been "Normalized" and the respective DTC will clear.

To normalize the window motor, follow these steps:

NOTE: The doors must be completely closed prior to normalizing the windows, a door that is open or ajar may cause the power window to function abnormally or to become inoperative while performing the normalizing procedure. If this occurs, verify that the door is completely closed then repeat the normalizing procedure.

1. Vehicle in Service Mode.

2. Starting with the window completely UP, press and hold the power window switch until the window is fully open and continue holding the switch down for approximately 5 seconds after the window is completely open.

3. Pull the power window switch up until the window is fully closed and continue holding the switch up for approximately 5 seconds after the window is completely closed.

The window should now be normalized and the window should perform the express up and express down functions.

Window Motor Relearn Procedure

A relearn procedure may need to be performed for any Local Interconnect Network (LIN) window motor for the following conditions:

When the window glass is out of alignment When the window glass has been replaced When the door has been replaced

When the window regulator has been replaced

NOTE: Prior to performing the relearn procedure the vehicle must have all 4 wheels properly inflated and mounted, the vehicle must be sitting on a level surface and all doors must be completely closed.

To relearn the window motor, follow these steps:

1. Vehicle in Service Mode.

2. With a scan tool, select Module Diagnosis, Body Control Module, Configuration/Reset Functions and then select the appropriate Clear Window Learn Values for the window motor requiring the relearn procedure.

3. After the learn procedure, exit the scan tool learn procedure completely, the power window cannot be normalized and will not function until you exit the program.

4. Starting with the window completely UP, press and hold the power window switch until the window is fully open and continue holding the switch down for approximately 5 seconds after the window is completely open.

5. Pull the power window switch up until the window is fully closed and continue holding the switch up for approximately 5 seconds after the window is completely closed.

The window is now reprogrammed.

REAR SIDE DOOR WINDOW REGULATOR REPLACEMENT

Fig. 22: Rear Side Door Window Regulator Courtesy of GENERAL MOTORS COMPANY

FRONT SIDE DOOR WINDOW CHANNEL RETAINER REPLACEMENT

Fig. 23: Front Side Door Window Channel Retainer Courtesy of GENERAL MOTORS COMPANY

REAR SIDE DOOR WINDOW CHANNEL REAR RETAINER REPLACEMENT

Fig. 24: Rear Side Door Window Channel Rear Retainer Courtesy of GENERAL MOTORS COMPANY

FRONT SIDE DOOR WINDOW INNER SEALING STRIP REPLACEMENT

Removal Procedure

1. Remove Front Side Door Window Garnish Molding. Refer to Front Side Door Window Garnish Molding Replacement

2. Lower the window.

Fig. 25: Front Side Door Window Inner Sealing Strip Courtesy of GENERAL MOTORS COMPANY

3. Pull up on the front side door window inner sealing strip (1) to remove from door.

Installation Procedure

Fig. 26: Front Side Door Window Inner Sealing Strip Courtesy of GENERAL MOTORS COMPANY

1. Push down on the front side door window inner sealing strip (1) to install onto the door.

NOTE: Inspect the window for proper operation before installing the door trim.

2. Install Front Side Door Window Garnish Molding. Refer to Front Side Door Window Garnish Molding Replacement

REAR SIDE DOOR WINDOW UPPER REVEAL MOLDING REPLACEMENT

Fig. 27: Rear Side Door Window Upper Reveal Molding Courtesy of GENERAL MOTORS COMPANY

REAR SIDE DOOR WINDOW BELT REVEAL MOLDING REPLACEMENT

Fig. 28: Rear Side Door Window Belt Reveal Molding Courtesy of GENERAL MOTORS COMPANY

FRONT SIDE DOOR WINDOW BELT REVEAL MOLDING REPLACEMENT

Fig. 29: Front Side Door Window Belt Reveal Molding Courtesy of GENERAL MOTORS COMPANY

FRONT SIDE DOOR WINDOW UPPER REVEAL MOLDING REPLACEMENT

Fig. 30: Front Side Door Window Upper Reveal Molding Courtesy of GENERAL MOTORS COMPANY

REAR SIDE DOOR WINDOW INNER SEALING STRIP REPLACEMENT

Fig. 31: Rear Side Door Window Inner Sealing Strip Courtesy of GENERAL MOTORS COMPANY

FRONT SIDE DOOR WINDOW WEATHERSTRIP REPLACEMENT

Fig. 32: Front Side Door Window Weatherstrip Courtesy of GENERAL MOTORS COMPANY

REAR SIDE DOOR WINDOW WEATHERSTRIP REPLACEMENT

Fig. 33: Rear Side Door Window Weatherstrip Courtesy of GENERAL MOTORS COMPANY

ADHESIVE INSTALLATION OF WINDSHIELDS

WARNING: Refer to Glass and Sheet Metal Handling Warning .

1. Use a urethane adhesive systems which meet GM Specification GM 3651G.

2. Remove all but approximately 2 mm (3/64 in) of the existing bead of urethane adhesive from the pinch-weld flange.

3. Remove all mounds or loose pieces of urethane adhesive from the pinch-weld area.

4. If the original window is being reused, remove all but a thin film of the existing urethane adhesive from the window surface by using a clean utility knife or razor blade scraper.

5. Inspect for any of the following problems in order to help prevent future breakage of the window: The flange of the window opening

High weld

Solder spots

Hardened sealer

Any other obstruction or irregularity in the pinch-weld flange

NOTE: If corrosion of the pinch-weld flange is present or if sheet metal repairs or replacements are required, the pinch-weld flange must be refinished in order to restore the bonding area strength. If paint repairs are required, mask the flange bonding area prior to applying the color coat in order to provide a clean primer only surface. Materials such as BASF DE15®, DuPont 2610®, Sherwin-Williams PSE 4600 and NP70® and Martin-Semour 5120 and 5130® PPG DP90LF SPIES/HECKER 3688/8590 - 3688/5150 - 4070/5090 STANDOX

11158/13320 - 14653/14980 products are approved for this application.

6. After repairing the opening as indicated, perform the following steps:

1. Remove all traces of broken glass from the outer cowl panel, seats, floor, and defroster ducts.

2. Clean around the edge of the inside surface of the window with a 50/50 mixture of isopropyl alcohol and water by volume on a dampened lint free cloth.

WARNING: Refer to Window Retention Warning .

7. Verify all primers and urethane adhesive are within expiration dates.

Fig. 34: Applying Pinch-Weld Primer

Courtesy of GENERAL MOTORS COMPANY

WARNING: Failure to prep the area prior to the application of primer may cause insufficient bonding of urethane adhesive. Insufficient bonding of urethane adhesive may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.

NOTE: Do not apply the black primer to the existing bead of the urethane adhesive on the pinch-weld flange. Apply the primer only to nicks, scratches, or the primed surfaces.

8. Shake the pinch-weld primer black for at least 1 minute.

9. Use a new dauber in order to apply the primer to the surface of the pinch-weld flange (1).

10. Allow the pinch-weld primer to dry for approximately 10 minutes.

Fig. 35: Dry Fitting Window

Courtesy of GENERAL MOTORS COMPANY

11. With the aid of an assistant, dry fit the window (1) to the opening in order to determine the correct position.

Fig. 36: Ensuring Proper Windshield Fit Courtesy of GENERAL MOTORS COMPANY

12. Ensure the window (1) locator pins are positioned into the locator slots in the pinch-weld flange.

Fig. 37: Marking Location Of Window In Opening Courtesy of GENERAL MOTORS COMPANY

13. Use masking tape in order to mark the locations (1) of the window (2) in the opening.

14. Cut the masking tape in the center and remove the window from the opening.

15. Place the window on a clean soft surface.

Install the lower windshield molding.

Fig. 38: Applying Glass Prep

Courtesy of GENERAL MOTORS COMPANY

NOTE: Use care when applying glass prep clear on the window. This primer dries almost instantly, and may stain the viewing area of the window if not applied evenly.

16. Use a new dauber in order to apply glass prep clear to the area approximately 18 mm (0.71 in) around the entire perimeter of the window inner surface.

Immediately wipe the glass primed area using a clean, lint-free cloth.

Fig. 39: Applying Glass Prep

Courtesy of GENERAL MOTORS COMPANY

17. Apply a second coat of the glass prep clear to the same area of the glass.

Fig. 40: Applying Glass Primer

Courtesy of GENERAL MOTORS COMPANY

NOTE: The glass primer black is effective up to 8 hours after applying it to the glass.

The primed surface of the glass must be kept clean.

18. Shake the glass primer black for at least 1 minute.

19. Use a new dauber in order to apply the glass primer black to the same areas (2) that glass prep clear was applied.

20. Allow the glass primer to dry for approximately 10 minutes.

Fig. 41: Modified Applicator Nozzle

Courtesy of GENERAL MOTORS COMPANY

21. Cut the applicator nozzle in order to provide a bead of 12.7 mm (1/2 in) wide and 12.7 mm (1/2 in) high.

Fig. 42: Applying Continuous Bead Of Urethane Adhesive Courtesy of GENERAL MOTORS COMPANY

22. Use a cartridge-type caulking gun in order to apply a smooth, continuous bead of urethane adhesive.

Fig. 43: Applying Urethane Adhesive To Inner Surface Of Window Courtesy of GENERAL MOTORS COMPANY

23. Use the edge of the window as a guide for the nozzle in order to apply the urethane adhesive (1) to the inner surface of the window (3).

Fig. 44: Windshield Placement

Courtesy of GENERAL MOTORS COMPANY

24. With the aid of an assistant, place the window (1) in the opening.

Fig. 45: Aligning Tape Lines On Window To Body Courtesy of GENERAL MOTORS COMPANY

25. Align the masking tape (1) lines on the window (2) and the body.

Fig. 46: Pressing Window Into Place

Courtesy of GENERAL MOTORS COMPANY

NOTE: To prevent damage to the window due to objects impacting an exposed edge, upon installation, the window must rest 1 mm (0.04 in) below the surface of the sheet metal.

26. Press firmly around the entire periphery of the windshield in order to wet-out the urethane bead.

27. Tape the window to the body in order to minimize movement until the urethane adhesive cures.

Fig. 47: Cleaning Excess Urethane Adhesive From Body Courtesy of GENERAL MOTORS COMPANY

28. Clean any excess urethane adhesive from the body.

Fig. 48: Performing Water Hose Test

Courtesy of GENERAL MOTORS COMPANY

NOTE: Do not direct a hard stream of high pressure water to the freshly applied urethane adhesive.

29. Use a soft spray of warm water in order to immediately water test the window.

30. Inspect the window for leaks.

31. If any leaks are found, use a plastic paddle in order to apply extra urethane adhesive at the leak point.

32. Retest the window for leaks.

WARNING: Insufficient curing of urethane adhesive may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.

For the moisture-curing type of urethane adhesive, allow a minimum of 6 hours at 21°C (70°F) or greater and with at least 30 percent relative humidity. Allow at least 24 hours for the complete curing of the urethane adhesive.

For the chemical-curing type of urethane adhesive, allow a minimum of 1 hour.

Do NOT physically disturb the repair area until after these minimum times have elapsed.

33. Maintain the following conditions in order to properly cure the urethane adhesive:

Partially lower a door window in order to prevent pressure buildups when closing doors before the urethane adhesive cures.

Do not drive the vehicle until the urethane adhesive is cured. Refer to the above curing times. Do not use compressed air in order to dry the urethane adhesive.

34. Complete the window installation.

ADHESIVE INSTALLATION OF LIFTGATE WINDOWS

WARNING: Refer to Glass and Sheet Metal Handling Warning .

1. Use a urethane adhesive systems which meet GM Specification GM 3651G.

2. Remove all but approximately 2 mm (3/64 in) of the existing bead of urethane adhesive from the pinch-weld flange.

3. Remove all mounds or loose pieces of urethane adhesive from the pinch-weld area.

4. If the original window is being reused, remove all but a thin film of the existing urethane adhesive from the window surface by using a clean utility knife or razor blade scraper.

5. Inspect for any of the following problems in order to help prevent future breakage of the window: The flange of the window opening

High weld

Solder spots

Hardened sealer

Any other obstruction or irregularity in the pinchweld flange

NOTE: If corrosion of the pinch-weld flange is present or if sheet metal repairs or replacements are required, the pinch-weld flange must be refinished in order to restore the bonding area strength. If paint repairs are required, mask the flange bonding area prior to applying the color coat in order to provide a clean primer only surface. Materials such as BASF DE15®, DuPont 2610®, Sherwin-Williams PSE 4600 and NP70® and Martin-Semour 5120 and 5130® PPG DP90LF SPIES/HECKER 3688/8590 - 3688/5150 - 4070/5090 STANDOX

11158/13320 - 14653/14980 products are approved for this application.

6. After repairing the opening as indicated, perform the following steps:

1. Remove all traces of broken glass from the outer cowl panel, seats, floor and defroster ducts.

2. Clean around the edge of the inside surface of the window with a 50/50 mixture of isopropyl alcohol and water by volume on a dampened lint free cloth.

WARNING: Refer to Window Retention Warning .

7. Verify all primers and urethane adhesive are within expiration dates.

WARNING: Failure to prep the area prior to the application of primer may cause insufficient bonding of urethane adhesive. Insufficient bonding of urethane

adhesive may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.

NOTE: Do not apply the black primer to the existing bead of the urethane adhesive on the pinch-weld flange. Apply the primer only to nicks, scratches or the primed surfaces.

8. Shake the pinch-weld primer black for at least 1 minute.

9. Use a new dauber in order to apply the primer to the surface of the pinch-weld flange.

10. Allow the pinch-weld primer to dry for approximately 10 minutes.

11. With the aid of an assistant, dry fit the window (1) to the opening in order to determine the correct position.

Fig. 49: Liftgate Window

Courtesy of GENERAL MOTORS COMPANY

12. Ensure the window (1) locator pins are positioned into the locator slots in the pinch-weld flange.

13. Use masking tape in order to mark the locations (1) of the window (2) in the opening.

14. Cut the masking tape in the center and remove the window from the opening.

15. Place the window on a clean soft surface.

Fig. 50: Applying Glass Prep

Courtesy of GENERAL MOTORS COMPANY

NOTE: Use care when applying glass prep clear on the window. This primer dries almost instantly, and may stain the viewing area of the window if not applied evenly.

16. Use a new dauber in order to apply glass prep clear to the area approximately 18 mm (0.71 in) around the entire perimeter of the window inner surface.

Immediately wipe the glass primed area using a clean, lint-free cloth.

Fig. 51: Applying Glass Prep

Courtesy of GENERAL MOTORS COMPANY

17. Apply a second coat of the glass prep clear to the same area of the glass.

Fig. 52: Applying Glass Primer

Courtesy of GENERAL MOTORS COMPANY

NOTE: The glass primer black is effective up to 8 hours after applying it to the glass.

The primed surface of the glass must be kept clean.

18. Shake the glass primer black for at least 1 minute.

19. Use a new dauber in order to apply the glass primer black to the same areas (2) that glass prep clear was applied.

20. Allow the glass primer to dry for approximately 10 minutes.

Fig. 53: Modified Applicator Nozzle

Courtesy of GENERAL MOTORS COMPANY

21. Cut the applicator nozzle in order to provide a bead of 12.7 mm (1/2 in) wide and 12.7 mm (1/2 in) high.

Fig. 54: Applying Continuous Bead Of Urethane Adhesive Courtesy of GENERAL MOTORS COMPANY

22. Use a cartridge-type caulking gun in order to apply a smooth, continuous bead of urethane adhesive.

Fig. 55: Applying Urethane Adhesive To Inner Surface Of Window Courtesy of GENERAL MOTORS COMPANY

23. Use the edge of the window as a guide for the nozzle in order to apply the urethane adhesive (1) to the inner surface of the window (3).

24. With the aid of an assistant, place the window locator pins into the slots in the liftgate.

Fig. 56: Pressing Window Into Place

Courtesy of GENERAL MOTORS COMPANY

NOTE: To prevent damage to the window due to objects impacting an exposed edge, upon installation, the window must rest 1 mm (0.040 in) below the surface of the sheet metal.

25. Press firmly around the entire periphery of the window in order to wet-out the urethane bead.

26. Tape the window to the body in order to minimize movement until the urethane adhesive cures.

Fig. 57: Cleaning Excess Urethane Adhesive From Body Courtesy of GENERAL MOTORS COMPANY

27. Clean any excess urethane adhesive from the body.

Fig. 58: Performing Water Hose Test

Courtesy of GENERAL MOTORS COMPANY

NOTE: Do not direct a hard stream of high pressure water to the freshly applied urethane adhesive.

28. Use a soft spray of warm water in order to immediately water test the window.

29. Inspect the window for leaks.

30. If any leaks are found, use a plastic paddle in order to apply extra urethane adhesive at the leak point.

31. Retest the window for leaks.

WARNING: Insufficient curing of urethane adhesive may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.

For the moisture-curing type of urethane adhesive, allow a minimum of 6 hours at 21°C (70°F) or greater and with at least 30 percent relative humidity. Allow at least 24 hours for the complete curing of the urethane adhesive.

For the chemical-curing type of urethane adhesive, allow a minimum of 1 hour.

Do NOT physically disturb the repair area until after these minimum times have elapsed.

32. Maintain the following conditions in order to properly cure the urethane adhesive:

Partially lower a door window in order to prevent pressure buildups when closing doors before the urethane adhesive cures.

Do not drive the vehicle until the urethane adhesive is cured. Refer to the above curing times. Do not use compressed air in order to dry the urethane adhesive.

33. Complete the window installation.

DESCRIPTION AND OPERATION

FULL-CUT METHOD DESCRIPTION

NOTE: If corrosion of the pinch-weld flange is present, or if sheet metal repairs or replacements are required, refinish the pinch-weld flange in order to present a clean, primer-only surface.

If paint repairs are required, mask the flange bonding area, prior to applying the color coat, in order to provide a clean, primer-only surface.

Appropriate materials for these primer applications are typically 2 component catalyzed products. Use materials such as BASF DE15®, DuPont 2610®, Sherwin-Williams PSE 4600 and NP70® and Martin-Semour 5120, 5130®, PPG DP90LF SPIES/HECKER 3688/8590 - 3688/5150 - 4070/5090 STANDOX

11158/13320 - 14653/14980 products are approved for this application. Follow the manufacturer's directions for the mix, the application, and the drying times.

After repairing the opening as indicated, shake the pinch-weld primer black #3 well. Using a new dauber, apply the primer to the primed surface of the flange in the bonding area. Allow the primer to dry for 10 minutes.

Use only the full cut method, also known in the field as full strip method, when installing windows. This method includes the following:

The replacement of a majority of the urethane adhesive bead. Remove all but approximately 2 mm (3/64 in) of the existing bead of urethane adhesive from the pinch-weld flange.

Apply pinch-weld primer to any exposed painted areas on the pinch-weld flange.

No mounds or loose pieces of urethane adhesive should remain on the pinch-weld flange. Do not remove all traces of urethane adhesive.

POWER WINDOWS DESCRIPTION AND OPERATION

Power Windows System Components

The power window system consists of the following components: Driver window/outside rearview mirror switch

Passenger window switch

Left rear window switch Right rear window switch Right rear door latch

Left rear door latch

Window motors in each of the doors 25A Fuse

Body control module (BCM)

Driver Express Up and Express Down Power Window Motor

The driver door contains a window motor is smart motor that will detect excessive resistance while performing the express up function and automatically reverse direction to prevent injury to any occupants that may become trapped between the closing window and the door frame. The automatic reverse safety feature can be overridden by pulling and holding the window switch.

The logic circuit within the window motor monitors the up, down and express signal circuits which are normally equal to B+ voltage. When a switch is used on the driver window/outside rearview mirror switch, the contacts close causing a voltage drop within the appropriate signal circuit. The driver window motor will detect the voltage drop and will command the window to move in the direction requested.

Passenger, Left Rear and Right Rear Express Down Window Motors

For the passenger, right rear and left rear doors, when their window switch is pressed in the down position, battery positive voltage is applied to their respective window motor control circuit and ground to the other window motor control circuit causing that window to open. When the individual window switch is pulled in the up position, voltage and ground is applied to the window motor in the opposite direction causing that window to close. The return path to ground is supplied through the inactive control circuit being normally grounded through the window switch.

Each passenger and rear window switch communicates to the BCM by a serial data circuit. When the driver wishes to control the passenger, left rear or right rear window, the driver will use the appropriate switch on the driver window/outside rearview mirror switch. When this switch is used, a serial data message is sent to the BCM requesting a window motor command, the BCM will then send a serial data message to the appropriate door window switch which will then command that window to move in the direction requested.

Lockout Switch Feature

The driver window/outside rearview mirror switch contains a window lockout switch, when the driver presses the window lockout switch, a serial data message is sent to the BCM which will send a disable command to the rear window switches, the rear window switches will then ignore all functions when a passenger uses the rear window switch. The rear window motor commands will still function normally when the driver uses the appropriate switches on the driver window/outside rearview mirror switch.

REAR WINDOW DEFOGGER DESCRIPTION AND OPERATION

Rear Window Defogger System Components

The rear window defogger system consists of the following components: HVAC Control Module

HVAC Controls Switch Assembly Rear Defogger Relay

Rear Defogger Grid

Driver Outside Rearview Mirror

Passenger Outside Rearview Mirror 40A Fuse

Fig. 59: S34-K33-X50A Defogger Block Diagram Courtesy of GENERAL MOTORS COMPANY

Rear Window Defogger Operation

The rear defog control system utilizes a single zone backlight design, driven with a single relay configuration. Additionally, up to two outside rear view mirrors can be heated if required. A switch for the customer to control the system is provided within the HVAC controls switch assembly. Also included in the HVAC controls switch assembly

is an indicator to inform the customer with the current state of the system. The system is only operational when the vehicle is ON/RUN.

Pressing the heated rear window switch causes the HVAC controls switch assembly to send a serial data message to the HVAC control module requesting rear window defog operation. The HVAC control module upon receipt of the serial data message will provide voltage to the coil side of the rear defogger relay, this will energize the relay causing the relay switch contacts to close allowing B+ voltage to flow through the rear defogger grid control circuit to the rear defogger grid.

When the rear heated rear window switch is pressed and the vehicle is ON/RUN, the rear window defogger grid will activate and will turn off automatically depending upon the vehicle speed (refer to owner's manual for rear window defogger operation cycles)

Heated Mirrors

The heated mirrors are also controlled through the rear defogger relay. Whenever the rear window defogger is turned on battery voltage is supplied to the mirror heater elements through the left and right mirror heater element control circuits.

STATIONARY WINDOW DESCRIPTION

Most stationary windows, specifically windshields, are retained to the body with adhesive which adheres the window to the body, increasing structural integrity. The reinstallation of the windows with adhesive requires complete replacement of the adhesive bead, and is known as the full cut method. All stationary windows must use a adhesive systems which meet GM Specification GMW-15672.

URETHANE ADHESIVE DESCRIPTION

For replacement of any adhesive-installed window, use the full cut method only. Use an adhesive that is approved by GM, Specification GMW-15672.

Use these materials based on specific manufacturer. Do NOT intermix primers or adhesives from one manufacturer to another.

Always follow the system manufacturers instructions for application, handling, and curing.

SPECIAL TOOLS AND EQUIPMENT

SPECIAL TOOLS

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