Fixed and Moveable Windows System Cadillac CTS II

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/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/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/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provide an overview of each diagnostic category.

Diagnostic Fault Information

Circuit/System Description

When the rear window defogger switch is activated, the radio/HVAC control panel sends a serial data message to the HVAC control module requesting the rear defogger be activated. The HVAC control module responds by energizing the rear defog relay by applying voltage to the rear defog relay control circuit. When the rear defog relay coil is energized, the switch contacts of the rear defog relay close allowing battery voltage to flow from the REAR DEFOG fuse through the closed switch contacts and out the relay switched output to the rear window defogger grid.

Conditions for Running the DTC

Battery voltage is between 9-16 volts.

B0283 02

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

B0283 05

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

The rear window defogger will be inoperative.

The rear window defogger will be inoperative or will operate continuously.

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/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/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 the ground circuit terminal 85.
4. Ignition ON, command Rear Defog Request ON and OFF with a scan tool. 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 25-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.

Repair Procedures

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Relay Replacement (Attached to Wire Harness)»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions) or «Relay Replacement (Within an Electrical Center)»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
2. «Control Module References»(/cadillac/cts/ii-2007-2014/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/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/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/cts/ii-2007-2014/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.

The DDM or PDM initializes on key up.

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.

Action Taken When the DTC Sets

The appropriate power window will be inoperative.

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

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

The appropriate 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/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/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.

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.

1. 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.

Ignition ON, 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 (Sedan/Wagon)

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/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/cts/ii-2007-2014/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 module (DDM). 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 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/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/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/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Control Module References»(/cadillac/cts/ii-2007-2014/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/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/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/cts/ii-2007-2014/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 module (DDM). When the rear window switch operation is authorized, 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/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/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 rear door window switch. 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 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.
3. 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/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Control Module References»(/cadillac/cts/ii-2007-2014/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/cts/ii-2007-2014/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 module(s) can communicate via serial data link.
2. Review the system description and operation in order to familiarize yourself with the system functions. Refer to the following: «Power Windows Description and Operation»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) «Rear Window Defogger Description and Operation»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the power windows or rear window defogger. Refer to «Checking Aftermarket Accessories»(/cadillac/cts/ii-2007-2014/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

Thoroughly inspect the wiring and connectors. An incomplete inspection of the wiring and connectors may result in misdiagnosis causing part replacement with the reappearance of the malfunction. If an intermittent malfunction exists, 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/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Power Windows Malfunction»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/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/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provide 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/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/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 value does not change between the commanded states, replace the Radio/HVAC control.
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 Radio/HVAC control.
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 30 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 87 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 50A fused jumper wire between the B+ circuit terminal 87 and the control circuit terminal 30. 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 the ground circuit terminal 85.
10. Command the Rear Defog Request ON and OFF with a scan tool. 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 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 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. «Rear Window Replacement (Sedan/Coupe)»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__rear-window-replacement-sedancoupe) or «Rear Window Replacement (Wagon)»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__rear-window-replacement-wagon)
2. «Relay Replacement (Attached to Wire Harness)»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions) or «Relay Replacement (Within an Electrical Center)»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
3. «Control Module References»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for HVAC control module and radio control assembly replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/cts/ii-2007-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/cadillac/cts/ii-2007-2014/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/cts/ii-2007-2014/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 module (DDM) and front passenger door module (PDM). The DDM and PDM each contain power window switches that are integrated into the module. The DDM contains the master power window switches that control all power window operations. The power window switch contained in the PDM controls the front passenger window operation only.

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

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

When the DDM 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

1. «Moveable Window Schematics»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Door Control Module Schematics»(/cadillac/cts/ii-2007-2014/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/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/cts/ii-2007-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/cadillac/cts/ii-2007-2014/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 In «Circuit/System Testing»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) . If the front passenger window malfunctions, refer to Front Window Malfunction In «Circuit/System Testing»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) . If either rear passenger power window malfunctions, refer to Rear Passenger Window Malfunction In «Circuit/System Testing»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) .
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 DDM.
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 DDM.
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 Regulator Motor Programming and Setup»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems) .

Front Window Malfunction

1. Ignition OFF, disconnect the X1 harness connector at the appropriate door module.
2. Test for less than 1 ohm 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 module.
5. Ignition ON, observe the scan tool Driver LF Window Switch parameters while using the driver power window switch on the DDM and the scan tool Passenger Window Switch parameters while using the passenger window switch on the PDM. The parameter should change between Off, Up, Down, Express Up, and Express Down. If the value does not change between commanded states, replace the door module.
6. Ignition OFF, disconnect the harness connector at the window motor.
7. Test for less than 5 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 Window Malfunction

1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
2. Test for less than 1 ohm between the ground circuit terminal E 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 H 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 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.
5. Test for greater than 9 volts between the signal circuit terminal B 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.
6. Test for greater than 9 volts between the signal circuit terminal C 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.
7. Ignition OFF, connect the 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 (Sedan/Wagon)»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
2. «Rear Side Door Window Regulator Motor Replacement»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
3. «Rear Side Door Window Switch Replacement»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system)
4. «Door Lock and Side Window Switch Replacement - Driver Side»(/cadillac/cts/ii-2007-2014/remont/door-locks-anti-theft-systems/#door-lock-system-door-handles)
5. «Door Lock and Side Window Switch Replacement - Passenger Side»(/cadillac/cts/ii-2007-2014/remont/door-locks-anti-theft-systems/#door-lock-system-door-handles)
6. «Control Module References»(/cadillac/cts/ii-2007-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM, DDM, or PDM 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/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
2. J 39032 Stationary Glass Removal Tool. See «Special Tools»(/cadillac/cts/ii-2007-2014/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. Open the hood.
2. Remove the windshield wiper arms. Refer to «Windshield Wiper Arm Replacement»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) .
3. Remove the air inlet grille. Refer to «Air Inlet Grille Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) .
4. Remove the rearview mirror. Refer to «Inside Rearview Mirror Replacement»(/cadillac/cts/ii-2007-2014/remont/mirrors/#mirror-system) .
5. Remove the outside moisture sensor, if equipped. Refer to «Windshield Outside Moisture Sensor Replacement»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) .
6. Remove the interior windshield garnish moldings. Refer to «Windshield Side Garnish Molding Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
7. Cover to protect the following parts from broken glass: Upper dash pad Defroster outlets and A/C outlets Seats and carpeting
8. Using a utility knife, carefully cut the windshield lace molding (1) in order to access the urethane adhesive bead.
9. 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 clean water. Use J 24402-A or J 39032 equivalent in order to remove the window. See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
10. Remove the bottom of the window 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.
11. Remove the windshield (1) from the vehicle.

Installation Procedure

1. Install the windshield into the opening. Refer to «Adhesive Installation of Windshields»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__adhesive-installation-of-windshields) .
2. Install the outside moisture sensor, if equipped. Refer to «Windshield Outside Moisture Sensor Replacement»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) .
3. Install the rearview mirror. Refer to «Inside Rearview Mirror Replacement»(/cadillac/cts/ii-2007-2014/remont/mirrors/#mirror-system) .
4. Install the interior windshield garnish moldings. Refer to «Windshield Side Garnish Molding Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
5. Install the air inlet grille. Refer to «Air Inlet Grille Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) .
6. Install the windshield wipers arms. Refer to «Windshield Wiper Arm Replacement»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) .
7. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.
8. Close the hood.

Door Window Adjustment

1. Remove the door trim panel. Refer to «Front Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) or «Rear Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
2. Pull down the upper portion of the water deflector far enough to access the window clamp nuts.
3. Loosen the window regulator to window clamp nuts 4 revolutions.
4. Connect the door trim panel wire connector.
5. Start the vehicle.
6. Using the power window switch, raise the window to the full up position. Tighten the window clamp nuts to 11 N.m (98 lb in).
7. Inspect for proper window operation and a tight seal.
8. Shut off the vehicle.
9. Install the water deflector.
10. Install the door trim panel. Refer to «Front Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) or «Rear Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .

1. Run the window to the full closed position.
2. Remove the door trim panel. Refer to «Front Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
3. Remove the water deflector.
4. Remove the window inner belt sealing strip. Refer to «Front Side Door Window Belt Inner Sealing Strip Replacement (Sedan/Wagon)»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) .
5. Tape the window in the closed position.
6. Loosen the window regulator clamp fasteners.
7. Connect the door trim panel electrical connector.
8. Using the power window switch, lower the window regulator to separate the window from the clamps.
9. Remove the tape.
10. Remove the window by tilting the window forward, pull the window up and out of the door.

1. Install the window into the door.
2. Position the window into the two window regulator clamps.
3. Start the vehicle.
4. Using the power window switch, raise the window to the fully closed position. Tighten the window clamp fasteners to 11 N.m (98 lb in).
5. Install the window inner belt sealing strip. Refer to «Front Side Door Window Belt Inner Sealing Strip Replacement (Sedan/Wagon)»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) .
6. Inspect for proper window operation and a tight seal.
7. Shut off the vehicle.
8. Install the water deflector.
9. Install the door trim panel. Refer to «Front Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .

1. Lower the window all the way down.
2. Remove the door trim panel. Refer to «Rear Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
3. Remove the water deflector.
4. Remove the window inner belt sealing strip. Refer to «Rear Side Door Window Inner Sealing Strip Replacement»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) .
5. Remove the rear side door stationary window. Refer to «Rear Side Door Stationary Window Replacement»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) .
6. Remove the window outer belt sealing strip. Refer to «Rear Side Door Window Outer Sealing Strip Replacement»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) .
7. Connect the door trim panel electrical connector.
8. Run the window to the full up position.
9. Tape the window in the up position.
10. Loosen the window clamp nuts 4 revolutions.
11. Using the power window switch, lower the window regulator to the full down position.
12. Remove the tape.
13. Slide the window down past the window regulator clamps and out of the front window run channel.
14. Lift the window out of the door.

1. Install the window down into the door assembly, inboard of the rear door stationary post, past the window clamps.
2. Position the glass into the stationary window post channel.
3. Raise the window past the window clamps.
4. Lower the window into the window clamps.
5. Install the stationary window post bolt and tighten to 9 N.m (80 lb in).
6. Push the glass forward into the front glass run channel.
7. Start the vehicle.
8. Using the power window switch, raise the window to the full up position. Tighten the window clamp nuts to 11 N.m (98 lb in).
9. Inspect the window for proper operation and a tight seal.
10. Shut off the vehicle.
11. Install the rear side door stationary window. Refer to «Rear Side Door Stationary Window Replacement»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) .
12. Install the window outer belt sealing strip. Refer to «Rear Side Door Window Outer Sealing Strip Replacement»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) .
13. Install the window inner belt sealing strip. Refer to «Rear Side Door Window Inner Sealing Strip Replacement»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system) .
14. Install water deflector.
15. Install the door trim panel. Refer to «Rear Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .

Scheme 4

Quarter Window Replacement (Wagon)

Special Tools

1. J 24402-A Glass Sealant Remover (Cold Knife). See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
2. J 39032 Stationary Glass Removal Tool. See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
3. Use a urethane adhesive systems which meet GM Specification GM 3651G

1. Remove the rear quarter panel upper trim. «Quarter Upper Trim Panel Replacement (Sedan)»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
2. Cover the following parts to protect from broken glass: Upper dash pad Defroster outlets and A/C outlets Seats and carpeting
3. 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. Use J 24402-A , J 39032 , or equivalent to remove the window. See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
4. If necessary, use a long utility knife or similar tool to remove the bottom corners of the window from the urethane adhesive.
5. Remove the quarter window (1) from the vehicle.

1. Install the quarter window into the opening. Refer to «Adhesive Installation of Encapsulated Stationary Windows (Wagon)»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__adhesive-installation-of-encapsulated-stationary-windows) .
2. Install the rear quarter panel upper trim. «Quarter Upper Trim Panel Replacement (Sedan)»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
3. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.
4. Close the rear compartment lid/liftgate.

Rear Window Replacement (Sedan/Coupe)

Special Tools

1. J 24402-A Glass Sealant Remover (Cold Knife). See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
2. J 39032 Stationary Glass Removal Tool. See «Special Tools»(/cadillac/cts/ii-2007-2014/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 rear compartment lid in order to access the reveal molding.
2. Disconnect the rear window defogger electrical connectors.
3. Disconnect the rear window radio antenna, diversity antenna, and the television antenna. Refer to «Radio Antenna Module Replacement (Sedan)»(/cadillac/cts/ii-2007-2014/remont/entertainment-systems/#cellular-system-entertainment-system-and-navigation-system) and «Television Antenna Cable Replacement»(/cadillac/cts/ii-2007-2014/remont/entertainment-systems/#cellular-system-entertainment-system-and-navigation-system)
4. Cover to protect the following parts from broken glass: Upper dash pad Defroster outlets and A/C outlets Seats and carpeting
5. Using a utility knife, carefully cut the rear window lace molding (1) in order to access the urethane adhesive bead.
6. 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 clean water. Use J 24402-A , J 39032 or equivalent in order to remove the window. See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
7. Remove the rear window (1) with the an assistant (2) from the vehicle.

1. Install the rear window into the opening.
2. Connect the rear window defogger electrical connectors.
3. Connect the rear window radio antenna, diversity antenna, and the television antenna. Refer to «Radio Antenna Module Replacement (Sedan)»(/cadillac/cts/ii-2007-2014/remont/entertainment-systems/#cellular-system-entertainment-system-and-navigation-system) and «Television Antenna Cable Replacement»(/cadillac/cts/ii-2007-2014/remont/entertainment-systems/#cellular-system-entertainment-system-and-navigation-system)
4. Check the radio and OnStar® system to verify reception.
5. Close the rear compartment lid.
6. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.

Rear Window Replacement (Wagon)

Special Tools

1. J 24402-A Glass Sealant Remover (Cold Knife). See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
2. J 39032 Stationary Glass Removal Tool. See «Special Tools»(/cadillac/cts/ii-2007-2014/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. Disconnect the rear window defogger electrical connectors.
3. Remove the rear window wiper arm. Refer to «Rear Window Wiper Arm Replacement (Wagon)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) .
4. Remove the liftgate upper applique. Refer to «Liftgate Upper Applique Replacement (Wagon)»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#exterior-trim) .
5. Cover to protect the following parts from broken glass: Upper dash pad Defroster outlets and A/C outlets Seats and carpeting
6. Using a utility knife, carefully cut the rear window lace molding (1) in order to access the urethane adhesive bead.
7. 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 clean water. Use J 24402-A , J 39032 or equivalent in order to remove the window. See «Special Tools»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__special-tools) .
8. Remove the (1) with the an assistant from the vehicle.

1. Install the rear window into the opening. Refer to «Adhesive Installation of Rear Windows (Wagon)»(/cadillac/cts/ii-2007-2014/remont/heated-glassdefoggers/#fixed-and-moveable-windows-system__adhesive-installation-of-rear-windows-wagon) .
2. Connect the rear window defogger electrical connectors.
3. Install the rear window wiper arm. Refer to «Rear Window Wiper Arm Replacement (Wagon)»(/cadillac/cts/ii-2007-2014/remont/wiperwasher-systems/#wiper-system-and-washer-system) .
4. Install the liftgate upper applique. Refer to «Liftgate Upper Applique Replacement (Wagon)»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#exterior-trim) .
5. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.

Scheme 5

1. Run the window to the full up position.
2. Remove the door trim panel. Refer to «Front Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
3. Remove the water deflector.
4. Tape the window in the full up position.
5. Through the access holes in the inner door panel, loosen the window clamp fasteners 4 revolutions.
6. Connect the door trim panel wiring harness.
7. Lower the window regulator 3/4 of the way down.
8. Disconnect the electrical connector from the window regulator motor.
9. Remove the window regulator fasteners (1, 2, 3, 4, 5).
10. Remove the window regulator from the door.

1. Install the window regulator into the door.
2. Install the window regulator fasteners (1, 2, 3, 4, 5) and tighten to 9 N.m (80 lb in).
3. Remove the tape from the window.
4. Lower the window into the window regulator clamps. The glass must be fully rearward into the window channel when it is seated in the window clamps.
5. Connect the power window motor electrical connector.
6. Start the vehicle.
7. Raise the window to the full up position. Tighten the window clamp Fasteners to 11 N.m (98 lb in).
8. Check window for proper operation and a tight seal before installing the trim panel.
9. Shut off the vehicle.
10. Install the water deflector.
11. Install the door trim panel. Refer to «Front Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .

1. Partially open the window, if possible.
2. Remove the front side door trim panel. Refer to «Front Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
3. Remove the water deflector.
4. Remove the wire harness inline retaining bracket.
5. Remove the fasteners (1) securing the power window motor to the window regulator.
6. Disconnect the electrical connector.
7. Remove the power window motor.

1. Install the power window motor to the window regulator.
2. Install the power window motor to regulator fastener (1) and tighten to 4 N.m (62 lb in).
3. Install the wire harness inline retainer bracket.
4. Connect the electrical connector.
5. Install the water deflector.
6. Install the front side door trim panel. Refer to «Front Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .

Scheme 6

Scheme 7

Scheme 8

1. Lower the window to the full down position.
2. Remove the door trim panel. Refer to «Front Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
3. Starting at one end of the window inner belt sealing strip, pull upward to release the strip.

1. Install the sealing strip (1) to the door flange on the door inner panel.
2. Press downward to engage the sealing strip the entire length of the door.
3. Install the door trim panel. Refer to «Front Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .

1. Lower the window to the full down position.
2. Remove the door trim panel. Refer to «Rear Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .
3. Starting at the forward end of the inner belt sealing strip, pull upward to release the strip.

1. Work from one end of the sealing strip to the other.
2. Position the inner belt sealing strip over the flange of the door inner panel.
3. Adjust seal strip gap (a) at the division post to 1.0 mm (0.04 in) maximum.
4. Press downward to engage the sealing strip the entire length of the door.
5. Install the door trim panel. Refer to «Rear Side Door Trim Panel Replacement»(/cadillac/cts/ii-2007-2014/remont/exteriorinterior-trim/#interior-trim-system-and-paneling) .

Scheme 9

Scheme 10

Adhesive Installation of Windshields

1. Use a urethane adhesive systems which meet GM Specification GM 3651G.
2. Remove all mounds or loose pieces of urethane adhesive from the pinchweld 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 pinchweld flange 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: The flange of the window opening High weld Solder spots Hardened sealer Any other obstruction or irregularity in the pinchweld 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 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 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 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 to the same area of the glass.
15. Shake the glass primer black for at least 1 minute.
16. Use a new dauber in order to apply the glass primer black to the same areas (2) that glass prep clear 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 12.7 mm (1/2 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. With an assistant installing the windshield pins in the locator holes located in the upper pinch-weld flange corners.
22. Align the masking tape (1) lines on the window (2) and the body.
23. Press the window firmly into place.
24. Tape the window to the body in order to minimize movement until the urethane adhesive cures.
25. Clean any excess urethane adhesive from the body.
26. Use a soft spray of warm water in order to immediately water test the window.
27. Inspect the window for leaks.
28. If any leaks are found, use a plastic paddle in order to apply extra urethane adhesive at the leak point.
29. Retest the window for leaks.
30. 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.
31. Complete the window installation.

Adhesive Installation of Encapsulated Stationary Windows (Wagon)

1. Use a urethane adhesive systems which meet GM Specification GM 3651G
2. Remove all mounds or loose pieces of urethane adhesive from the pinchweld 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 pinchweld flange 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: The flange of the window opening High weld Solder spots Hardened sealer Any other obstruction or irregularity in the pinchweld flange
5. After repairing the opening as indicated, perform the following steps
6. Use an abrasive pad if necessary to remove mold release buildup from the encapsulated window. Use a dampened lint free cloth to remove any debris remaining on the window.
7. Dry fit the window (1) to the opening in order to determine the correct position.
8. Ensure that the window locator pins are positioned to the pinch-weld flange.
9. Use masking tape to mark the locations of the window in the opening.
10. Cut the masking in the center and remove the window from the opening.
11. Verify all primers and urethane adhesive are within expiration dates.
12. Shake the primer clear for at least 1 minute.
13. Use a new dauber in order to apply the primer to the surface of the encapsulated window.
14. Allow the primer to dry for approximately 6 minutes.
15. Cut the applicator nozzle in order to provide a bead of 8 mm (0.31 in) wide, 12 mm (0.50 in) high.
16. Use a cartridge-type caulking gun in order to apply a smooth, continuous bead of urethane adhesive.
17. Use the edge of the inside encapsulated window track as a guide for the nozzle in order to apply the urethane adhesive.
18. Place the window in the opening.
19. Align the masking tape lines on the window and the body.
20. Press firmly around the entire periphery of the window in order to wet-out the urethane bead.
21. Tape the window to the body in order to minimize movement until the urethane adhesive cures.
22. Clean any excess urethane adhesive from the body.
23. Use a soft spray of warm water in order to immediately water test the window.
24. Inspect the window for leaks.
25. If any leaks are found, use a plastic paddle in order to apply extra urethane adhesive at the leak point.
26. Retest the window for leaks.
27. 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.
28. Complete the window installation.

Adhesive Installation of Rear Windows (Wagon)

1. Use a urethane adhesive systems which meet GM Specification GM 3651G
2. Remove all mounds or loose pieces of urethane adhesive from the pinchweld 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 pinchweld flange 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: The flange of the window opening High weld Solder spots Hardened sealer Any other obstruction or irregularity in the pinchweld 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.
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. Ensure the window locator pins are positioned into the locator slots in the pinch-weld flange.
12. Use masking tape to mark the locations of the window in the opening.
13. Cut the masking in the center and remove the window from the opening.
14. 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.
15. Apply a second coat of the glass prep clear to the same area of the glass.
16. Shake the glass primer black for at least 1 minute.
17. Use a new dauber in order to apply the glass primer black to the same areas (2) that glass prep clear was applied.
18. Allow the glass primer to dry for approximately 10 minutes.
19. 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.
20. Use a cartridge-type caulking gun in order to apply a smooth, continuous bead of urethane adhesive.
21. 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).
22. With the aid of an assistant, place the window in the opening.
23. Align the masking tape lines on the window and the body.
24. Press firmly around the entire periphery of the window in order to wet-out the urethane bead.
25. Tape the window to the body in order to minimize movement until the urethane adhesive cures.
26. Clean any excess urethane adhesive from the body.
27. Use a soft spray of warm water in order to immediately water test the window.
28. Inspect the window for leaks.
29. If any leaks are found, use a plastic paddle in order to apply extra urethane adhesive at the leak point.
30. Retest the window for leaks.
31. 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.
32. Complete the window installation.

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 Windows System Components

The power windows system consists of the following components

1. Driver door module (DDM)-GMLAN device that receives and transmits messages and signals for window functionality. The DDM contains the driver door switch (DDS) which is integrated into the module. The DDS contains the driver, front passenger, RR and LR window and window lockout switches.
2. Passenger front door module (PDM)-GMLAN device that receives and transmits messages and signals for window functionality. The PDM contains the front passenger door switch (PDS) which is integrated into the PDM. The PDS contains the front passenger window switch.
3. Left rear power window switch-Provides switched voltage and ground window switch signals to the left rear window motor for left rear passenger window operation
4. Right rear power window switch-Provides switched voltage and ground window switch signals to the right rear window motor for right passenger window operation
5. Left front power window motor-Contains position sensors and a module that receives signals from the DDM and provides a status signal to the DDM
6. Right front power window motor-Contains position sensors and a module that receives signals from the PDM and provides a status signal to the PDM
7. Left rear power window motor-Contains position sensors and a module that receives signals from the left rear power window switch
8. Right rear power window motor-Contains position sensors and a module that receives signals from the right rear power window switch
9. DRIVER DR MOD fuse (15-amp)
10. PDM fuse (15-amp)
11. PWR WNDW Circuit Breaker (25-amp) - front
12. LT/REAR/WNDW fuse (15-amp) - rear
13. REAR/WNDW fuse (15-amp) - rear

Power Window Controls

The driver power window is controlled by the driver window switch which also serves as the master switch for all windows. The passenger windows can be controlled by the power window switches located on the driver power window switch or from the power window switch mounted locally on its associated door.

The power windows can be controlled in the following modes

1. Up
2. Down
3. Express Up - front only
4. Express Down

Power Window Operation

The driver and front passenger doors are equipped with power window motors that contains its own module. Each power window motor receives a hot at all times battery supply voltage and constant ground source. When the right front passenger window switch on the DDS is activated to the up or down position, the DDM will interpret the signal and send a GMLAN serial data message to the PDM. Upon receipt of the message, the PDM will send a signal to the front passenger window motor module on the GMLIN serial data circuit. The window motor module will then supply battery voltage and ground to the window motor to drive the window motor to the up or down position.

The DDM communicates via the GMLAN serial data circuit with the body control module (BCM) to control the rear window functions from the driver master window switch. The BCM is hard wired to each rear power window switch with circuits for window up, window down, and an enable circuit. The rear window switches contain internal logic that when supplied with voltage from the BCM over the enable circuit will driver the appropriate window in the direction commanded.

The rear power window switches are supplied with battery voltage from individual right and left WNDW fuses located in the rear fuse block. When a rear power window switch is activated to the DOWN position, voltage is applied to the motor down circuit and the motor up circuit serves as the path to ground. The window motor will drive in the downward direction until the switch is released or the window has fully opened. When the window switch is activated to the UP position, voltage is applied to the motor up circuit and the motor down circuit serves as the path to ground. Ground for the left rear power window switch is supplied at G200 and the right rear power window switch receives ground at G201.

Window Express Up and Down Operation

The express feature allows the windows to be fully opened or closed by momentarily pressing the window switch to the second detent of the up or down position. Due to safety concerns with express up functionality, the system is designed to detect objects that become trapped between the window glass and window frame and reverse the direction of the window. This includes the use of window motor position sensors in each motor that determine the window position.

When a window switch is activated to an express up or down position, the door module associated with the power window switch will first receive the up or down signal and then the express signal is received. The door module will then send a signal over the GMLIN serial data circuit to the appropriate power window motor. This will tell the window motor module that an express function has been requested. The window motor module will then supply battery voltage and ground to the motor to drive the window to the full up or down position.

Window Lockout Feature

The window lockout switch is part of the master DDS. The lockout function is used to prevent the passenger door windows from being operated from their locally mounted switches. When the lockout switch is pressed momentarily, the switch contacts are briefly closed, the LED indicator on the switch button is illuminated, and the DDM processes the switch signal. The DDM sends the switch status via GMLAN serial data to the PDM and the BCM. The DDM, PDM, and BCM will prohibit the passenger windows from being operated from there locally mounted window switches. When the lockout function has been activated, the passenger door windows can still be operated from the driver door by using the DDS.

Rear Window Defogger System Components

The rear window defogger system consists of the following components

1. HVAC control module
2. Radio/HVAC control panel
3. REAR DEFOG relay
4. Rear window defogger grid
5. REAR DEFOG 50-amp fuse

Rear Window Defogger System Operation

The HVAC control module controls the REAR DEFOG relay located in the underhood fuse block. The rear window defogger switch is located on the radio/HVAC control panel at the center of the dash. When the rear window defogger switch is activated ON, the radio/HVAC control panel sends a serial data message to the HVAC control module requesting the rear defogger be activated. The HVAC control module responds by energizing the rear defog relay by applying voltage to the relay coil via the rear defog relay control circuit. Ground for the relay coil is provided at ground G104. When the rear defog relay coil is energized, the switch contacts of the rear defog relay close allowing battery voltage to flow from the REAR DEFOG fuse through the closed switch contacts and out the relay switched output circuit to the rear window defogger grid. Ground for the rear window defogger grid is provided at grounds G401 and G402. The information display module also illuminates the rear defog indicator LED located on the information display module panel.

When you start the engine and activate the rear window defogger switch, the defogger cycle lasts for 15 minutes. Further operation will result in 7.5 minute defogger cycles. The rear window defogger cycle resets to 15 minutes when the ignition is cycled from OFF to ON.

The rear window defogger will not time out if vehicle speed is above 50 mph (80 km/h).

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 GM 3651G

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 J-24402-A Glass Sealant Cold Knife Remover J-39032 Stationary Glass Removal Tool 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
• Window Regulator Motor Programming and Setup
• Windshield Wiper Arm Replacement
• Inside Rearview Mirror Replacement
• Windshield Side Garnish Molding Replacement
• Glass and Sheet Metal Handling Warning
• Express Window Down Warning
• Fastener Caution
• Cracked Window Warning
• Defroster Outlet Warning
• Radio Antenna Module Replacement (Sedan)
• Liftgate Upper Applique Replacement (Wagon)
• DTC B0283
• Rear Window Replacement (Sedan/Coupe)
• Rear Window Replacement (Wagon)
• Symptoms - Fixed and Moveable Windows
• Special Tools
• Adhesive Installation of Windshields
• Adhesive Installation of Encapsulated Stationary Windows (Wagon)
• Adhesive Installation of Rear Windows (Wagon)