Fixed and Moveable Windows System Cadillac Escalade GMT900

Fastener Tightening Specifications

Scheme 1

Scheme 2

Scheme 3

DIAGNOSTIC CODE INDEX

DIAGNOSTIC CODE INDEX

Diagnostic Instructions

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

Diagnostic Fault Information

Circuit/System Description

The HVAC control module monitors the voltage level on the supply voltage circuit of the REAR DEFOG relay. The voltage level should be low while the REAR DEFOG relay is de-energized. The voltage will be near system voltage when the HVAC control module energizes the REAR DEFOG relay.

Conditions for Running the DTC

Battery voltage must be between 9-16 volts.

B0283 02

The HVAC control module detects a short to ground in the rear defog relay control circuit for greater than 1 second.

B0283 05

The HVAC control module detects a short to voltage or an open/high resistance in the rear defog relay control circuit or the rear defog relay ground circuit for greater than 1 second.

B0283 06

The HVAC control module detects a short to ground or open/high resistance in the rear defog relay control circuit for 1 second or greater.

Action Taken When the DTC Sets

The rear window defogger will be inoperative

Conditions for Clearing the DTC

1. The DTC will be current for as long as the fault is present.
2. When the fault is no longer present, the DTC will be a history DTC.
3. A history DTC will clear after 50 ignition cycles.

Reference Information

Schematic Reference

Defogger Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Rear Window Defogger Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Command the Rear Defog Request ON and OFF with the scan tool. The rear window defogger should turn ON and OFF when changing between the commanded states.

Circuit/System Testing

1. Ignition OFF, disconnect the REAR DEFOG relay.
2. Test for less than 1 ohm between the ground circuit terminal 85 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Connect a test lamp between the control circuit terminal 86 and ground.
4. Ignition ON, command the defogger grid ON and OFF by pressing and depressing the rear defogger switch. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the HVAC control module. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the HVAC control module.
5. If all circuits test normal, test or replace the REAR DEFOG relay.

Component Testing

Relay Test

1. Ignition OFF, disconnect the REAR DEFOG relay.
2. Test for 60-180 ohms between terminals 85 and 86. If not within the specified range, replace the relay.
3. Test for infinite resistance between the following terminals: 30 and 86 30 and 87 30 and 85 85 and 87 If not the specified value, replace the relay.
4. Install a 30A fused jumper wire between relay terminal 85 and 12V. Install a jumper wire between relay terminal 86 and ground. Test for less than 2 ohms between terminals 30 and 87. If greater than the specified range, replace the relay.

Repair Procedures

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Relay Replacement (Attached to Wire Harness)»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions) or «Relay Replacement (Within an Electrical Center)»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
2. «Control Module References»(/cadillac/escalade/gmt900-2006-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for HVAC control module replacement, setup and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The front door power window motors communicate with the driver door module (DDM) and passenger door module (PDM) via serial data. The motors contain a logic module which must be normalized or programmed any time the window motor is serviced to provide proper operation and communication between door modules and window motors.

Power window switch activated.

B320A 39

An internal malfunction or a momentary voltage spike has been detected by the DDM or PDM in the front power window motor while commanding the window UP/DOWN.

B320A 42

A not normalized/programmed driver or front passenger door power window motor.

B320A 4B

The front window motor experiences a loss of voltage in the B+ circuit or an open/high resistance in the serial data circuit.

The affected power window will malfunction.

If the DTC is current, the appropriate window motor must be replaced before the DTC can be cleared.

The affected power window motor must be programmed before the DTC can be cleared.

The affected power window motor must be calibrated before the DTC can be cleared.

Schematic Reference

Moveable Window Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, command the appropriate power window DOWN and UP with a scan tool. The power window should go DOWN and UP as commanded.

1. If the DTC is current and the power window is inoperative, replace the power window motor.
2. If the DTC is history and the power window performs the UP and DOWN functions, clear the DTC.

Ignition ON, reprogram the appropriate power window and operate the power window within the conditions for running the DTC, verify the DTC does not reset.

1. If the DTC resets, replace the power window motor.

Command the front window motor fully DOWN by pressing and holding the front window switch for 5 seconds, then command the front window motor fully UP by lifting and holding the front window switch for 5 seconds.

1. If the DTC resets, replace the power window motor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Front Side Door Window Regulator Motor Replacement

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The driver door switch (DDS) and passenger door switch (PDS) control the power window functions through the power window motor up and down control circuits. The door switches monitor the control circuits for fault conditions when up or down operation is requested prior to activating the function and during operation.

1. Battery voltage must be between 9-16 volts.
2. The ignition is ON.

B3205 00

The DDS or PDS detects a short to ground or short to voltage on their respective window motor control circuit.

B3205 0B

The DDS or PDS has detected excessive current flow on their respective window motor control circuit.

The affected power window will be inoperative.

1. The DTC will be current for as long as the fault is present.
2. When the fault is no longer present, the DTC will be a history DTC.
3. A history DTC will clear after 50 ignition cycles.

Diagnostic Aids

B3205 0B can be set due to excessive physical resistance in the window regulator assembly. Ensure proper mechanical operation of the regulator assembly prior to replacing electrical components.

Schematic Reference

Moveable Window Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Observe the operation of the power windows while commanding each window UP and DOWN by using their respective window switches, each window should perform the UP and DOWN function.

1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
2. Connect a test lamp between control circuit terminal A and control circuit terminal B.
3. Ignition ON, command the window UP and DOWN by using the door switch. The test lamp should turn ON when commanding the UP and DOWN states. If the test lamp is always OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the door switch. If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the door switch
4. If all circuits test normal, test or replace the window motor.

1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
2. Install a 25A fused jumper wire between the control terminal A and 12 volts. Momentarily install a jumper wire between the control terminal B and ground. The window motor should perform the UP or DOWN function. If the function does not perform as specified, replace the window motor.
3. Reverse the jumper wires; the window motor should perform the DOWN or UP function. If the function does not perform as specified, replace the window motor

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Front Side Door Window Regulator Motor Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Control Module References»(/cadillac/escalade/gmt900-2006-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for DDS and PDS replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The body control module (BCM) monitors the window UP/DOWN command from the driver door switch (DDS). When the rear window UP or DOWN command is received, the BCM sends a signal to the appropriate rear window switch. The rear window switches continuously monitor the up and down signal circuits, if no function is being commanded, the signal voltage is at approximately B+ voltage. If the UP or DOWN function is commanded, the BCM signal voltage drops approximately 0.5 volts and the appropriate rear window switch will then command the window in the UP or DOWN direction.

Battery voltage is between 9-16 volts.

B3819 00

The BCM detects a fault in the left rear window up circuit.

B3820 00

The BCM detects a fault in the left rear window down circuit.

B3822 00

The BCM detects a fault in the right rear window up circuit.

B3823 00

The BCM detects a fault in the right rear window down circuit.

The left or right rear power window will be inoperative from the driver master control.

1. The DTC will be current for as long as the fault is present.
2. When the fault is no longer present, the DTC will be a history DTC.
3. A history DTC will clear after 50 ignition cycles.

Schematic Reference

Moveable Window Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, command the appropriate rear door window UP and DOWN by using the window switch on the driver master control. The rear door window should perform UP and DOWN function.

1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
2. Ignition ON, test for greater than 9 volts between the signal circuit terminal A and ground while commanding the rear window UP by using the window switch on the driver master control. If less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
3. Test for greater than 9 volts between the signal circuit terminal C and ground while commanding the rear window DOWN by using the window switch on the driver master control. If less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
4. If all circuits test normal, replace the rear window switch.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Rear Side Door Window Switch Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Control Module References»(/cadillac/escalade/gmt900-2006-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The body control module (BCM) monitors the window lockout command from the driver door switch (DDS). When the rear window switch operation is authorized, the the BCM signal voltage drops approximately 5 volts to the rear window switches allowing for normal window operation from the rear switches. If the rear window lockout function is commanded, the BCM signal voltage is at B+ voltage which disables the rear window switches and the rear windows will only operate when the BCM receives a command from the driver master control.

1. Battery voltage is between 9-16 volts.
2. The ignition is ON.

B3821 00

The BCM detects a fault in the left rear window lockout circuit.

B3824 00

The BCM detects a fault in the right rear window lockout circuit.

The left or right rear power window will be inoperative.

1. The DTC will be current for as long as the fault is present.
2. When the fault is no longer present, the DTC will be a history DTC.
3. A history DTC will clear after 50 ignition cycles

Schematic Reference

Moveable Window Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, command the rear windows UP and DOWN by using the window switches on the driver master control and their respective rear window switches. The rear windows should perform the UP and DOWN function from each switch.

1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
2. Ignition ON, enable the rear window switches by pressing the window lockout switch on the driver master control.
3. Test for greater than 9 volts between the control circuit terminal D and ground. If less than the specified range, test the control circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
4. If all circuits test normal, replace the rear window switch.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Rear Side Door Window Switch Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Control Module References»(/cadillac/escalade/gmt900-2006-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming

Symptoms - Fixed and Moveable Windows

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) 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 system operation in order to familiarize yourself with the system functions. Refer to the following system descriptions: «Power Windows Description and Operation»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) «Rear Window Defogger Description and Operation»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the system. Refer to «Checking Aftermarket Accessories»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__checking-aftermarket-accessories) .
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Intermittent

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

Symptom List

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

1. «Rear Window Defogger Malfunction»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Power Windows Malfunction (RPO Z75)»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) or «Power Windows Malfunction (RPO X88/Z88)»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

When the rear defogger button is pressed, voltage is supplied to the relay coil by the HVAC control module which also illuminates the rear window defogger indicator. B+ voltage is supplied at all times to the relay switched input and the relay coil is always grounded. This allows battery positive voltage from the relay switched input through the switch contacts and out the relay switched output to the rear window defogger.

Schematic Reference

Defogger Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Rear Window Defogger Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, observe the scan tool Rear Defrost State parameter while pressing the rear window defogger switch. The parameter should change between On and Off. If the parameter does not change between the commanded states, replace the HVAC control module.
2. Observe the operation of the rear window defogger indicator while pressing the rear window defogger switch. The indicator should turn ON or OFF each time the rear window defogger switch is pressed. If the indicator does not turn ON or OFF with each switch press, replace the HVAC control module.
3. Command the Rear Defog Request ON and OFF with a scan tool. The rear window defogger should turn ON and OFF when changing between the commanded states.

1. Ignition OFF, disconnect the REAR DEFOG relay.
2. Test for less than 1 ohm between the ground circuit terminal 85 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp does not illuminate between the control circuit terminal 87 and ground. If the test lamp illuminates, test the control circuit for a short to voltage.
4. Verify that a test lamp illuminates between the B+ circuit terminal 30 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
5. Ignition OFF, disconnect the X2 harness connector at the defogger grid.
6. Test for less than 1 ohm between the ground circuit terminal A and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
7. Connect the harness connector at the defogger grid.
8. Ignition ON, connect a 30A fused jumper wire between the B+ circuit terminal 30 and the control circuit terminal 87. Verify the defogger grid is activated. If the defogger grid does not activate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the defogger grid.
9. Connect a test lamp between the control circuit terminal 86 and ground.
10. Command the defogger grid ON and OFF by pressing and depressing the rear defogger switch. The test lamp should turn ON and OFF when changing between the commanded states. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the HVAC control module. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the HVAC control module.
11. If all circuits test normal, test or replace the REAR DEFOG relay.

Relay Test

1. Ignition OFF, disconnect the REAR DEFOGrelay.
2. Test for 60-180 ohms between terminals 85 and 86. If not within the specified range, replace the relay.
3. Test for infinite resistance between the following terminals: 30 and 86 30 and 87 30 and 85 85 and 87 If not the specified value, replace the relay.
4. Install a 30-amp fused jumper wire between relay terminal 85 and 12 volts. Install a jumper wire between relay terminal 86 and ground. Test for less than 2 ohms between terminals 30 and 87. If greater than the specified range, replace the relay.

Rear Window Defogger Grid Test

1. Ignition ON, turn on the rear window defogger.
2. Verify that a test lamp illuminates between each rear window defogger grid line and ground. The test lamp should be off when testing at the ground side of the grid and get brighter as the test lamp moves closer to the voltage supply side of the grid. The test lamp should be dim when testing each grid line in the middle. If the test lamp remains bright at the middle of the grid line, test for an open between the test point and the ground side of the grid. If the test lamp remains off at the middle of the grid line, test for an open between the test point and the voltage supply side of the grid.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Liftgate Window Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Relay Replacement (Attached to Wire Harness)»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions) or «Relay Replacement (Within an Electrical Center)»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
3. «Control Module References»(/cadillac/escalade/gmt900-2006-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for HVAC control module replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic procedure.
3. «Diagnostic Procedure Instructions»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provide an overview of each diagnostic category.

The front and rear power windows are controlled by the driver door lock/window switch and passenger door lock/window switch. The driver door lock/window switch and passenger door lock/window switch each contain power window switches that are integrated into the module. The driver door lock/window switch contains the master power window switches that control all power window operations. The power window switch contained in the passenger door lock/window switch controls the front passenger window operation only.

When the driver power window switch is activated to a desired position, the driver door lock/window switch examines the request and checks for messages from other vehicle control modules prohibiting window movement. If no prohibitive messages have been received, the driver door lock/window switch will send a serial data message to the driver door window motor to move the window to the desired position.

When the driver door lock/window switch receives a request to operate the right side passenger windows from the master switch, a serial data message is sent to the passenger door lock/window switch. The passenger door lock/window switch examines the request and checks for messages from other vehicle control modules prohibiting the window movement. If no prohibitive messages have been received, the passenger door lock/window switch will send a serial data message to the appropriate window motor to move the window as requested.

When the driver door lock/window switch receives a request to operate a rear window from the master switch, a serial data message is sent to the BCM. The BCM examines the request and checks for messages from other vehicle control modules prohibiting the window movement. If no prohibitive messages have been received, the BCM will send a serial data message to the appropriate rear window switch which will command the window motor as requested.

Schematic Reference

Moveable Window Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, observe the operation of the power windows while commanding each window UP and DOWN by using their respective window switches, each window should perform the UP and DOWN function. If the driver window malfunctions, refer to Front Window Malfunction. If the front passenger window malfunctions, refer to Front Window Malfunction. If either rear passenger power window malfunctions, refer to Rear Passenger Window Malfunction.
2. Observe the scan tool Driver Window RF Switch, Driver Window LR Switch and Driver Window RR Switch parameters while using the driver master control switches. The parameter should change between Off/Up/Down/Express Down. If the value does not change between commanded states, replace the driver door lock/window switch.
3. Observe the scan tool Window Lockout Switch parameter while pressing and depressing the window lockout switch on the driver master control. The parameter should change between On and Off. If the value does not change between commanded states, replace the driver door lock/window switch.
4. Command the express up and express down functions of the driver and passenger door windows by pressing their window switches past the first detent and releasing and pulling their window switches past the first detent and releasing. The appropriate window should perform the express up and express down function. If the function does not perform as specified, refer to «Window Motor Programming - Express Function»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) .

Front Window Malfunction

1. Ignition OFF, disconnect the X1 harness connector at the appropriate door lock/window switch.
2. Test for less than 15 ohms between the ground circuit terminal 6 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuit 4 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. Ignition OFF, connect the X1 harness connector at the door lock/window switch.
5. Ignition ON, observe the scan tool Driver LF Window Switch parameters while using the driver window switch and the scan tool Passenger Window Switch parameters while using the passenger window switch. The parameters should change between Off, Up, Down, Express Up, and Express Down. If the value does not change between commanded states, replace the door lock/window switch.
6. Ignition OFF, disconnect the harness connector at the window motor.
7. Test for less than 15 ohms between the ground circuit terminal 4 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
8. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 3 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
9. If all circuits test normal, replace the window motor.

Rear Passenger Window Malfunction

1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
2. Test for less than 10 ohms between the ground circuit terminal F and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal G and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. Test for greater than 9V between the control circuit terminal D and ground. If less than the specified range, test the control circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
5. Test for greater than 9V between the signal circuit terminal C and ground while commanding the rear window DOWN with a scan tool. If less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
6. Test for greater than 9V between the signal circuit terminal A and ground while commanding the rear window UP with a scan tool. If less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
7. Ignition OFF, connect the harness connector at rear window switch and disconnect the harness connector at the rear window motor.
8. Connect a test lamp between the control circuit terminal A and control circuit terminal B.
9. Ignition ON, command the rear window UP and DOWN by using the rear window switch. The test lamp should illuminate when commanding the UP and DOWN states. If the test lamp is always OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the rear window switch. If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the rear window switch.
10. If all circuits test normal, test or replace the rear window motor.

Rear Window Motor

1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
2. Install a 25A fused jumper wire between one of the control terminals and 12V. Momentarily install a jumper wire between the other control terminal and ground. Reverse the jumper wires at least two times, the window motor should perform the UP/DOWN functions. If it does not perform as specified, replace the window motor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Front Side Door Window Regulator Motor Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Rear Side Door Window Regulator Motor Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
3. «Rear Side Door Window Switch Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
4. «Control Module References»(/cadillac/escalade/gmt900-2006-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM, driver door lock/window switch or passenger door lock/window switch replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The driver and passenger door lock and side window switches are integrated control module switch assemblies. The driver door lock/window switch controls the passenger window through a serial data message to the passenger door lock lock/window switch. When a power window switch is activated in the up or down positions the driver door lock/window switch or passenger door lock lock/window switch supplies power and ground to their respective window motor control circuits to drive the window motor in the required direction. The rear passenger power windows can also be operated from the driver door lock/window switch through a serial data message to the BCM. The rear passenger window switches on the driver door lock/window switch have 2 positions, up and down, their position is a direct input into the driver door lock/window switch. When the BCM receives a command to operate a rear window up or down, the appropriate signal is sent to the rear door window switch which will command the window motor to perform the up or down function.

Each power window contains a reversible power window motor. The direction the window travels is dependent upon the polarity of the supply voltage. By reversing polarity of the supply voltage the window motor will move up or down. Each power window motor is internally circuit breaker protected.

Schematic Reference

1. «Moveable Window Schematics»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Door Control Module Schematics»(/cadillac/escalade/gmt900-2006-2014/remont/door-locks-anti-theft-systems/#door-lock-system-door-handles)

Connector End View Reference

Component Connector End Views

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, observe the operation of the power windows while commanding each window UP and DOWN by using their respective window switches, each window should perform the UP and DOWN function. If the driver window malfunctions, refer to Driver Window Malfunction. If the front passenger window malfunctions, refer to Passenger Window Malfunction. If either rear passenger power window malfunctions, refer to Rear Passenger Window Malfunction.
2. Observe the scan tool Driver RF Window Switch, Driver LR Window Switch and Driver RR Window Switch parameters while using the driver master control switches. The parameter should change between Off, Up, Down and Express Down. If the value does not change, replace the driver door lock/window switch.
3. Observe the scan tool Window Lockout Switch parameter while pressing and depressing the window lockout switch on the driver master control. The parameter should change between On and Off. If the value does not change, replace the driver door lock/window switch.

Driver Window Malfunction

1. Ignition OFF, disconnect the X1 harness connector at the driver door lock/window switch.
2. Test for less than 15 ohms between the ground circuit terminal 6 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 2 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. Ignition OFF, connect the X1 harness connector at the driver door lock/window switch.
5. Ignition ON, observe the scan tool Driver LF Window Switch parameters while using the driver power window switch. The parameter should change between Off, Up, Down and Express Down. If the value does not change, replace the driver door lock/window switch.
6. Ignition OFF, disconnect the harness connector at the driver window motor.
7. Connect a test lamp between control circuit terminal A and control circuit terminal B.
8. Ignition ON, command the driver window UP and DOWN by using the driver window switch. The test lamp should illuminate when commanding the UP and DOWN states. If the test lamp is always OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the driver door lock/window switch. If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the driver door lock/window switch.
9. If all circuits test normal, test or replace the driver window motor.

Passenger Window Malfunction

1. Ignition OFF, disconnect the X1 harness connector at the passenger door lock/window switch.
2. Test for less than 15 ohms between the ground circuit terminal 6 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 2 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. Ignition OFF, connect the X1 harness connector at the passenger door lock/window switch.
5. Ignition ON, observe the scan tool Passenger Window Switch parameters while using the passenger power window switch. The parameter should change between Off, Up, Down and Express Down. If the value does not change, replace the passenger door lock/window switch.
6. Ignition OFF, disconnect the harness connector at the passenger window motor.
7. Ignition ON, test for less than 1 ohms between the control circuit terminal A and ground If greater than the specified range, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the passenger door lock/window switch.
8. Test for less than 1 ohms between the control circuit terminal B and ground If greater than the specified range, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the passenger door lock/window switch.
9. Connect a test lamp between control circuit terminal A and control circuit terminal B.
10. Command the passenger window UP and DOWN by using the passenger door lock/window switch. The test lamp should illuminate when commanding the UP and DOWN states. If the test lamp is always OFF during either of the commands, test either control circuit for a short to ground. If the circuits test normal, replace the passenger door lock/window switch.
11. If all circuits test normal, test or replace the passenger window motor.

Rear Passenger Window Malfunction

1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
2. Test for less than 10 ohms between the ground circuit terminal F and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal G and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
4. Test for greater than 9V between the control circuit terminal D and ground. If less than the specified range, test the control circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
5. Test for greater than 9V between the signal circuit terminal C and ground while commanding the rear window DOWN with a scan tool. If less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
6. Test for greater than 9V between the signal circuit terminal A and ground while commanding the rear window UP with a scan tool. If less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
7. Ignition OFF, connect the harness connector at rear window switch and disconnect the harness connector at the rear window motor.
8. Connect a test lamp between the control circuit terminal A and control circuit terminal B.
9. Ignition ON, command the rear window UP and DOWN by using the rear window switch. The test lamp should illuminate when commanding the UP and DOWN states. If the test lamp is always OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the rear window switch. If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the rear window switch.
10. If all circuits test normal, test or replace the rear window motor.

1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
2. Install a 25A fused jumper wire between one of the control terminals and 12V. Momentarily install a jumper wire between the other control terminal and ground. Reverse the jumper wires at least two times, the window motor should perform the UP/DOWN functions. If it does not perform as specified, replace the window motor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Rear Side Door Window Regulator Motor Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Front Side Door Window Regulator Motor Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
3. «Rear Side Door Window Switch Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
4. «Control Module References»(/cadillac/escalade/gmt900-2006-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for the driver door lock/window switch, passenger door lock lock/window switch and BCM replacement, setup and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
3. «Diagnostic Procedure Instructions»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The liftglass release switch is an input to the body control module (BCM). The BCM supplies battery voltage to the signal circuit and when the release switch is activated the signal circuit voltage goes low. The BCM controls the liftglass release actuator through the rear wiper motor control module. When the release switch signal is activated, the BCM applies battery voltage as a signal through the liftglass latch release control circuit to the rear wiper motor control module. The rear wiper motor control module supplies voltage to the release actuator through the liftglass latch assembly.

Schematic Reference

Release Systems Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Liftgate Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Scan Tool Reference

Control Module References for scan tool information

1. Ignition ON, command the rear window wiper ON and OFF by using the rear wiper switch. The rear window wiper should turn ON and OFF when changing between commanded states. If the rear window wiper does not turn ON and OFF, refer to «Rear Wiper System Malfunction»(/cadillac/escalade/gmt900-2006-2014/remont/wiperwasher-systems/#wiper-system-washer-system)
2. Observe the scan tool Ext. Trunk/Liftglass Rel. Sw parameter while pressing the liftgate window release switch. The parameter should change from Inactive to active. If the parameter does not change, refer to Liftglass Release Switch Malfunction.
3. Command the liftglass latch to release the liftglass by pressing the liftgate window release switch. The liftglass latch should release the liftglass. If the liftglass latch does not release the liftglass, refer to Liftglass Latch Assembly Malfunction.

Liftglass Release Switch Malfunction

1. Ignition OFF, disconnect the harness connector at the liftglass release switch.
2. Test for less than 5 ohms between the ground circuit terminal B and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify the scan tool Ext. Trunk/Liftglass Rel. Sw parameter is Inactive. If not the specified value, test the signal circuit terminal A for a short to ground. If the circuit tests normal, replace the BCM.
4. Connect a 3A fused jumper wire between the signal circuit terminal A and ground, verify the scan tool Ext. Trunk/Liftglass Rel. Sw is Active. If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
5. If all circuits test normal, test or replace the liftglass release switch.

Liftglass Latch Assembly Malfunction

1. Ignition OFF, disconnect the harness connector at the rear window wiper motor.
2. Ignition ON, connect a test lamp between the signal circuit terminal B and ground.
3. Command the liftglass latch to release by pressing the liftgate window release switch. The test lamp should briefly illuminate when the liftgate window release switch is pressed. If the test lamp is always OFF, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. If the test lamp is always ON, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM.
4. Ignition OFF, connect the harness connector at the rear window wiper motor. Disconnect the harness connector at the liftglass latch assembly.
5. Test for less than 5 ohms between the ground circuit terminal 2 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
6. Ignition ON, connect a test lamp between the control circuit terminal 1 and ground.
7. Command the liftglass latch to release by pressing the liftgate window release switch. The test lamp should briefly illuminate when the liftgate window release switch is pressed. If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal replace the rear window wiper motor. If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal replace the rear window wiper motor.
8. If all circuits test normal, test or replace the liftglass latch assembly.

Liftglass Latch Assembly

1. Ignition OFF, disconnect the harness connector at the rear liftglass latch assembly.
2. Install a 20A fused jumper wire between the control terminal 1 and 12 volts. Install a jumper wire between the ground terminal 2 and ground. Verify the liftglass actuator activates. If the actuator does not perform as specified, replace the liftglass latch assembly.

Liftglass Release Switch

1. Ignition OFF, disconnect the harness connector at the liftglass release switch.
2. Test for infinite resistance between the signal terminal A and the ground terminal B with the switch in the open position. If not the specified value, replace the liftglass release switch.
3. Test for less than 2 ohms between the signal terminal A and the ground terminal B with the switch in the closed position. If greater than the specified range, replace the liftglass release switch.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Liftgate Window Latch Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Rear Window Wiper Motor Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/wiperwasher-systems/#wiper-system-washer-system)
3. «Control Module References»(/cadillac/escalade/gmt900-2006-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup, and programming

Side Door Window Mechanical Diagnosis

Windshield Replacement

Special Tools

1. J 24402-A Glass Sealant Remover (Cold Knife). See «Special Tools»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
2. J 39032 Stationary Glass Removal Tool. See «Special Tools»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
3. Use a urethane adhesive systems which meet GM Specification GM 3651G

Removal Procedure

1. Remove the fixed antenna mast if equipped. Refer to «Radio Antenna Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/entertainment-systems/#cellular-systems-entertainment-systems-navigation-systems) .
2. Open the hood.
3. Remove the window wiper arms. Refer to «Windshield Wiper Arm Replacement (Chevrolet Hybrid Two-mode)»(/cadillac/escalade/gmt900-2006-2014/remont/wiperwasher-systems/#wiper-system-washer-system) or «Windshield Wiper Arm Replacement (Conventional)»(/cadillac/escalade/gmt900-2006-2014/remont/wiperwasher-systems/#wiper-system-washer-system) .
4. Remove the air inlet grille panel. Refer to «Air Inlet Grille Panel Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/wiperwasher-systems/#wiper-system-washer-system) .
5. Remove the outside moisture sensor lens. Refer to «Windshield Outside Moisture Sensor Lens Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/wiperwasher-systems/#wiper-system-washer-system) .
6. Remove the inside rearview mirror. Refer to «Inside Rearview Mirror Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/mirrors/#mirror-system) .
7. Reposition the front door sealing weatherstrips (1) in order to access the side reveal molding screws. You do not have to remove the front door sealing weatherstrip completely from the vehicle.
8. Remove the screws from the left and the right sides of window side reveal moldings.
9. Remove the reveal side moldings from the vehicle.
10. Cover the following parts to protect from broken glass: The upper dash pad The defroster outlets and A/C outlets The seats and the carpeting
11. Remove the window lower supports (1) by using a flat-bladed tool, lightly prying upward in the middle until the support releases.
12. Use J-24402-A: Glass Sealant Cold Knife Remover, J-39032: Stationary Window Removal Tool, or equivalent in order to remove the window. Leave a base of urethane on the pinch-weld flange. The only suitable lubrication is clear water.
13. Remove the bottom of the window from the urethane adhesive using a long utility knife or similar tool.
14. With the aid of an assistant remove the window (1) from the vehicle.

Installation Procedure

1. Install a stationary window into the opening. Refer to «Adhesive Installation of Stationary Windows (Quarter Window)»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__adhesive-installation-of-stationary-windows-quarter) or «Adhesive Installation of Stationary Windows (Windshield)»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__adhesive-installation-of-stationary-windows-windshield) .
2. Install the window side reveal moldings to the vehicle.
3. Install the screws to the left and the right sides of the window side reveal moldings and tighten to 2 N.m (18 lb in).
4. Install the front door sealing weatherstrips to the retainer.
5. Install the cowl air inlet grille panel. Refer to «Air Inlet Grille Panel Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/wiperwasher-systems/#wiper-system-washer-system) .
6. Install the window wiper arms. Refer to «Windshield Wiper Arm Replacement (Chevrolet Hybrid Two-mode)»(/cadillac/escalade/gmt900-2006-2014/remont/wiperwasher-systems/#wiper-system-washer-system) or «Windshield Wiper Arm Replacement (Conventional)»(/cadillac/escalade/gmt900-2006-2014/remont/wiperwasher-systems/#wiper-system-washer-system) .
7. Install the antenna mast, if equipped. Refer to «Radio Antenna Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/entertainment-systems/#cellular-systems-entertainment-systems-navigation-systems) .
8. Install the outside moisture sensor lens. Refer to «Windshield Outside Moisture Sensor Lens Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/wiperwasher-systems/#wiper-system-washer-system) .
9. Install the inside rearview mirror. Refer to «Inside Rearview Mirror Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/mirrors/#mirror-system) .
10. Close the hood.
11. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.

Scheme 4

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Scheme 6

Quarter Window Replacement

Special Tools

1. J 24402-A Glass Sealant Remover (Cold Knife). See «Special Tools»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
2. J 39032 Stationary Glass Removal Tool. See «Special Tools»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
3. Use a urethane adhesive systems which meet GM Specification GM 3651G

1. Open the liftgate.
2. Remove the right or left side rear applique. Refer to «Quarter Panel Upper Applique Replacement (GMC Yukon Hybrid 2 Mode)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#exterior-trim) or «Quarter Panel Upper Applique Replacement (Tahoe)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#exterior-trim) .
3. Remove the rear door upper garnish trim. Refer to «Rear Door Upper Garnish Molding Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
4. Disconnect the electrical connector from the quarter window.
5. Cover the following parts to protect from broken glass: The upper dash pad The defroster outlets and A/C outlets The seats and the carpeting
6. Use J-24402-A: Glass Sealant Cold Knife Remover, J-39032: Stationary Glass Removal Tool, or equivalent in order to remove the quarter window. Leave a base of urethane on the pinchweld flange. The only suitable lubrication is clear water.
7. With the aid of an assistant, use the suction cups to remove the window from the opening.

1. Install the quarter window. Refer to «Adhesive Installation of Stationary Windows (Quarter Window)»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__adhesive-installation-of-stationary-windows-quarter) or «Adhesive Installation of Stationary Windows (Windshield)»(/cadillac/escalade/gmt900-2006-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__adhesive-installation-of-stationary-windows-windshield) .
2. Install the right or left side rear applique. Refer to «Quarter Panel Upper Applique Replacement (GMC Yukon Hybrid 2 Mode)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#exterior-trim) or «Quarter Panel Upper Applique Replacement (Tahoe)»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#exterior-trim) .
3. Install the rear door upper garnish trim. Refer to «Rear Door Upper Garnish Molding Replacement»(/cadillac/escalade/gmt900-2006-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
4. Connect the electrical connector to the quarter window, if equipped
5. Ensure that the radio has reception.
6. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.
7. Close the liftgate.

Scheme 7

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Scheme 9

Scheme 10

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Scheme 13

Scheme 14

Express Window Programming and Setup

Anytime battery power is lost or if the power window motor is replaced, the express down and express up features must be relearned.

Follow the procedure below to program the power windows

1. Ignition ON, lower each window to the full down position and hold each window switch at the full down position for 5 seconds.
2. Raise each window to the full up position and hold each window switch at the full up position for 5 seconds.
3. Verify that the express down and express up feature are working by pressing the power window switch past its first detent and releasing and pulling the power window switch past its first detent and releasing. If the express down and express up functions are successfully relearned, the power window should roll completely down and roll completely up.

Scheme 15

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Scheme 25

Adhesive Installation of Stationary Windows (Quarter Window)

1. Use a urethane adhesive systems which meet GM Specification GM 3651G
2. Remove all mounds or loose pieces of urethane adhesive from the pinch-weld area.
3. If the original window is being reused, remove all but approximately 2 mm (3/64 in) of the existing bead of urethane adhesive from the pinch-weld flange and the window surface by using a clean utility knife or razor blade scraper.
4. Inspect for any of the following problems in order to help prevent future breakage of the window: High weld Solder spots on the pinchweld Hardened sealer Any other obstruction or irregularity in the pinch-weld flange
5. After repairing the opening as indicated, perform the following steps: Remove all traces of broken glass from the outer cowl panel, seats, floor and defroster ducts. 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.
6. Verify all primers and urethane adhesive are within expiration dates.
7. Shake the pinch-weld primer black #3 for at least 1 minute.
8. Use a new dauber in order to apply the primer to the surface of the pinch-weld flange (1).
9. Allow the pinch-weld primer to dry for approximately 10 minutes.
10. With the aid of an assistant, dry fit the window to the opening in order to determine the correct position.
11. Use masking tape in order to mark the locations (1) of the window (2) in the opening.
12. Cut the masking tape in the center and remove the window from the opening.
13. Use a new dauber in order to apply glass prep clear #1 to the area approximately 10-16 mm (3/8-5/8 in) around the entire perimeter of the window inner surface. Immediately wipe the glass primed area using a clean, lint-free cloth.
14. Apply a second coat of the glass prep clear #1 to the same area of the glass.
15. Shake the glass primer black #2 for at least 1 minute.
16. Use a new dauber in order to apply the glass primer black #2 to the same areas (2) that glass prep clear #1 was applied.
17. Allow the glass primer to dry for approximately 10 minutes.
18. Cut the applicator nozzle in order to provide a bead of 8 mm (0.316 in) wide and 12.7 mm (1/2 in) high.
19. Use a cartridge-type caulking gun in order to apply a smooth, continuous bead of urethane adhesive.
20. 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).
21. Align the masking tape (1) lines on the window (2) and the body.
22. Press the window firmly into place.
23. Tape the window to the body in order to minimize movement until the urethane adhesive cures.
24. Clean any excess urethane adhesive from the body.
25. Use a soft spray of warm water in order to immediately water test the window.
26. Inspect the window for leaks.
27. If any leaks are found, use a plastic paddle in order to apply extra urethane adhesive at the leak point.
28. Retest the window for leaks.
29. 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.
30. Complete the window installation.

Adhesive Installation of Stationary Windows (Windshield)

1. Use a urethane adhesive systems which meet GM Specification GM 3651G
2. Remove all mounds or loose pieces of urethane adhesive from the pinch-weld area.
3. If the original window is being reused, remove all but approximately 2 mm (3/64 in) of the existing bead of urethane adhesive from the pinch-weld flange and the window surface by using a clean utility knife or razor blade scraper.
4. Inspect for any of the following problems in order to help prevent future breakage of the window: High weld Solder spots on the pinchweld Hardened sealer Any other obstruction or irregularity in the pinch-weld flange
5. After repairing the opening as indicated, perform the following steps: Remove all traces of broken glass from the outer cowl panel, seats, floor and defroster ducts. 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.
6. Verify all primers and urethane adhesive are within expiration dates.
7. Shake the pinch-weld primer black #3 for at least 1 minute.
8. Use a new dauber in order to apply the primer to the surface of the pinch-weld flange (1).
9. Allow the pinch-weld primer to dry for approximately 10 minutes.
10. With the aid of an assistant, dry fit the window (1) to the opening in order to determine the correct position.
11. Use masking tape in order to mark the locations (1) of the window (2) in the opening.
12. Cut the masking tape in the center and remove the window from the opening.
13. Use a new dauber in order to apply glass prep clear #1 to the area approximately 10-16 mm (3/8-5/8 in) around the entire perimeter of the window inner surface. Immediately wipe the glass primed area using a clean, lint-free cloth.
14. Apply a second coat of the glass prep clear #1 to the same area of the glass.
15. Shake the glass primer black #2 for at least 1 minute.
16. Use a new dauber in order to apply the glass primer black #2 to the same areas (2) that glass prep clear #1 was applied.
17. Allow the glass primer to dry for approximately 10 minutes.
18. Cut the applicator nozzle in order to provide a bead of 8 mm (0.316 in) wide and 12.7 mm (1/2 in) high.
19. Use a cartridge-type caulking gun in order to apply a smooth, continuous bead of urethane adhesive.
20. 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).
21. Align the masking tape (1) lines on the window (2) and the body.
22. Press the window firmly into place.
23. Tape the window to the body in order to minimize movement until the urethane adhesive cures.
24. Clean any excess urethane adhesive from the body.
25. Use a soft spray of warm water in order to immediately water test the window.
26. Inspect the window for leaks.
27. If any leaks are found, use a plastic paddle in order to apply extra urethane adhesive at the leak point.
28. Retest the window for leaks.
29. 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.
30. Complete the window installation.

Scheme 26

Full-Cut Method Description

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

This method includes the following

1. The replacement of a majority of the adhesive bead. Remove all but approximately 2 mm (3/64 in) of the existing bead of adhesive from the pinch-weld flange.
2. Apply pinch-weld primer to any exposed painted areas on the pinch-weld flange.

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

Power Window System Components

The power window system consists of the following components

1. Driver Door Switch (DDS)
2. Passenger Door Switch (PDS)
3. Body Control Module (BCM)
4. Rear door power window switches
5. Power window motors in each of the doors (circuit breaker protected)

Power Window System Controls

The power window system will operate anytime the retained accessory power (RAP) system is active or when the ignition switch is in the ACCY or ON position.

The driver and passenger door lock and side window switches are integrated control module switch assemblies. The driver door switch (DDS) driver and front passenger window switches are normally open, 3 position rocker type switches, with detents for up, down, and express down. The DDS rear passenger window switches are normally open, 2 position rocker type switches, with detents for up and down. The DDS rear window lockout switch is a push button type switch that provides an active signal to the DDS whenever pressed. Whenever the rear window lockout switch is pressed the DDS will activate or deactivate the rear window lockout function depending on the current state, and illuminate the switch indicator whenever the function is active.

The passenger door switch (PDS) contains a single power window switch that is an integral component. Closing of this normally open, rocker switch provides the PDS with a request for the front passenger power window operation. The switch for the front passenger window has 3 positions Up, Down and Express Down. Each of these switch positions is a direct input to the PDS.

The rear passenger door power window switches are normally open, 2 position rocker type switches, with detents for up and down. Each switch incorporates up and down window motor relays that can be energized by the rocker switch or through body control module (BCM) control circuits.

Driver Power Window Operation

The switch for the driver power window has 3 positions Up, Down and Express Down and its position is a direct input into the driver door switch (DDS). Upon receiving a request for power window operation (switch activation), the DDS supplies voltage to the power window motor left front up or down circuit and grounds the opposite and the power window motor runs to move the window up or down.

Front Passenger Power Window Operation

The switch for the front passenger power window has 3 positions Up, Down and Express Down, and its position is a direct input into the passenger door switch (PDS). Upon receiving a request for power window operation (switch activation), the PDS supplies voltage to the power window motor right front up or down circuit and grounds the opposite and the power window motor runs to drive the window up or down.

The front passenger power window can also be operated from the driver door switch (DDS). The front passenger window switch on the DDS has 3 positions Up, Down and Express Down and its position is a direct input into the DDS. Upon receiving a request for front passenger power window operation, the DDS transmits a GMLAN message indicating the changed switch position. When the PDS receives this message, the PDS supplies voltage to the power window motor right front up or down circuit and grounds the opposite and the power window motor runs to move the window up or down.

Rear Passenger Power Window Operation

The rear passenger power window switches are supplied battery voltage through 25A circuit breakers in the IP fuse panel. The rear door window switch up and down relays control power and ground to the window motors through the motor control circuits. The rear window switch relays can be energized by the integrated rocker switch or by the body control module (BCM) through the up and down signal circuits. While a rear window switch is in an inactive state both of the window motor control circuits are grounded through the up and down relays. When an up or down relay is energized the battery supply circuit is closed to the corresponding motor control circuit while the other control circuit remains grounded through the de-energized relay. The BCM supplies the rocker switches with accessory/retained accessory power (RAP) voltage through the lockout control circuit while the lockout function is inactive. The supply side of all the window up and down relays receive voltage through the battery voltage supply circuit and the lt door or rt door circuit breakers respectively.

The rear passenger power windows can also be operated from the driver door switch (DDS) through a GMLAN message to the BCM. The rear passenger window switches on the DDS have 2 positions Up and Down their position is a direct input into the DDS. When the BCM receives a command to operate a rear window up or down the appropriate signal circuit is used to energize the up or down relay in the rear door window switch.

Rear Power Window Lockout Operation

NOTE: Power window lockout switch disables REAR passenger window switches only and has no effect on the operation of the FRONT passenger window switch.

The rear window lockout function is operated from the driver door switch (DDS) through a GMLAN message to the body control module (BCM). When the BCM receives an active lockout command, the rear door power window switches are disabled. The lockout control circuit from the BCM supplies the accessory/retained accessory power (RAP) voltage to the rear window switches while the lockout function is inactive and removes the supply voltage to activate the function. Once activated, the lockout feature will remain in effect until the ignition switch is cycled or the DDS receives another power window lockout switch activation.

Rear Window Defogger System Components

The rear window defogger system consist of the following components

1. Heating ventilation air conditioning control module
2. Body control module (BCM)
3. DEFOG relay
4. Rear window that has a number of grid lines

Rear Window Defogger Operation

When you depress the rear defogger switch, voltage is supplied to the defog relay coil and the HVAC control module also illuminates the rear window defogger indicator. Battery positive voltage is supplied at all times to the defog relay switched input and the defog relay coil is always grounded. This allows battery positive voltage from the relay switched input through the switch contacts and out the relay switched output to the rear window defogger. The HVAC module also sends a message to the driver door module (DDM) and passenger door module (PDM) on the GMLAN serial communication circuit to activate the heated mirrors, if equipped.

When you turn ON the ignition and press the rear window defogger switch for the first time, the defogger cycle lasts 10 minutes. Further operation results in 5 minute defogger cycles.

Stationary Window Description

Most stationary windows, specifically windshields, are retained to the body with urethane adhesive which adheres the window to the body, increasing structural integrity. The reinstallation of the windows with urethane adhesive requires complete replacement of the urethane adhesive bead, and is known as the full cut method.

Urethane Adhesive Description

For replacement of any adhesive-installed window, use the full cut method only.

Use adhesive systems which meet GM Specification GM 3651G.

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

Always follow the system manufacturer's instructions for application, handling, and curing.

Special Tools

Illustration Tool Number/ Description BO-24402-A J-24402-A Glass Sealant Cold Knife Remover BO-39032 J-39032 Stationary Glass Removal Tool BO-39040 J-39040 Quarter Window Remover

See also:
• Diagnostic System Check - Vehicle
• Strategy Based Diagnosis
• Diagnostic Procedure Instructions
• Component Connector End Views
• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs
• Control Module References
• Diagnostic Repair Verification
• Relay Replacement (Attached to Wire Harness)
• Checking Aftermarket Accessories
• Door Control Module Schematics
• Rear Wiper System Malfunction
• Radio Antenna Replacement
• Inside Rearview Mirror Replacement
• Glass and Sheet Metal Handling Warning
• Decal or Stripe Replacement (Tahoe Hybrid 2 Mode Lower Door)
• Fastener Caution
• Front Side Door Trim Panel Replacement
• SIR Warning
• SIR Disabling and Enabling
• Cracked Window Warning
• Liftgate Strut Replacement (Except Avalanche and Escalade EXT)
• Window Retention Warning
• DTC B0283
• Symptoms - Fixed and Moveable Windows
• Special Tools
• Adhesive Installation of Stationary Windows (Quarter Window)
• Adhesive Installation of Stationary Windows (Windshield)
• Fastener Tightening Specifications