Fixed and Moveable Windows Buick Regal V

Fastener Tightening Specifications

Fastener Tightening Specifications

Scheme 1

Scheme 2

Scheme 3

Scheme 4

Diagnostic Code Index

DIAGNOSTIC CODE INDEX

Diagnostic Instructions

1. Perform the «Diagnostic System Check - Vehicle»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/buick/regal/v-2009-2013/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»(/buick/regal/v-2009-2013/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

When the HVAC control module receives a rear window defog request from the HVAC control faceplate, the HVAC control module will supply voltage to the relay coil. Battery positive 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 to flow through the switch contacts and out the relay switched output to the rear window defogger grid.

Conditions for Running the DTC

Battery voltage must be between 9-16 V.

Conditions for Setting the DTC

The HVAC control module detects a short to ground in the relay control circuit.

Action Taken When the DTC Sets

The rear window defogger grid will malfunction

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 -- INDEX

Description and Operation

Rear Window Defogger Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/buick/regal/v-2009-2013/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

Engine running, command the rear window defogger grid ON and OFF with a scan tool. The rear window defogger grid should turn ON and OFF when changing between the commanded states.

Circuit/System Testing

1. Ignition OFF, disconnect the KR5 rear defogger relay.
2. Test for less than 10 ohms 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. Engine running, command the E18 rear window defogger grid 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 K33 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 K33 HVAC control module.
5. If all circuits test normal, test or replace the KR5 rear defogger relay.

Component Testing

Relay Test

1. Ignition OFF, disconnect the KR5 rear defogger relay.
2. Test for 60-180 ohms between terminals 85 and 86. If not within the specified range, replace the KR5 rear defogger 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 KR5 rear defogger relay.
4. Install a 25 A fused jumper wire between relay terminal 85 and 12 V. 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 KR5 rear defogger relay.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Relay Replacement (Within an Electrical Center)»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions) , «Relay Replacement (Attached to Wire Harness)»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
2. «Control Module References»(/buick/regal/v-2009-2013/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»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/buick/regal/v-2009-2013/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»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

When a window switch is pressed on the driver window switch, a serial data message is sent to the body control module (BCM). The BCM examines the request and checks for messages from other power window motors prohibiting the window movement. If no prohibitive messages have been received, the BCM will send a serial data message to the passenger window motor or to the appropriate rear window switch which will perform the command as requested.

Battery voltage must be between 9-16 V.

B316B 00

The BCM has detected the driver right front or left rear or right rear window switch is active for greater than 60 seconds.

B316B 02

The BCM has detected the driver left front window switch is active for greater than 60 seconds.

B317A 02

The BCM has detected the passenger window switch is active for greater than 60 seconds.

B318A 02

The BCM has detected the left rear window switch is active for greater than 60 seconds

B319A 02

The BCM has detected the right rear window switch is active for greater than 60 seconds

B316B 39, B317A 39, B318A 39, B319A 39

The BCM has detected an internal failure within the affected door switch

The affected power window will malfunction.

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

1. The DTC will be current for as long as the fault is present.
2. The DTC will change from current to history when the fault is no longer present.
3. A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.

B316B 39, B317A 39, B318A 39, B319A 39

If the DTC is current, the affected window switch must be replaced before the DTC can be cleared.

Schematic Reference

Moveable Window Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/buick/regal/v-2009-2013/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, verify that each of the scan tool parameters listed below are Inactive: Front Passenger Main Control Down Switch Front Passenger Main Control Express Switch Front Passenger Main Control Up Switch Left Rear Window Main Control Down Switch Left Rear Window Main Control Express Switch Left Rear Window Main Control Up Switch Right Rear Window Main Control Down Switch Right Rear Window Main Control Express Switch Right Rear Window Main Control Up Switch If any of the parameters are always Active, replace the S79D window switch-driver.
2. Verify that the scan tool Left Rear Window Switch at Door parameter is Inactive. If not the specified value, replace the S79LR window switch-left rear.
3. Verify that the scan tool Right Rear Window Switch at Door parameter is Inactive. If not the specified value, replace the S79RR window switch-right rear.
4. Command the driver window to go UP, DOWN, express UP and express DOWN by using the S79D window switch-driver. The driver window should perform the UP, DOWN, express UP and express DOWN functions. If the driver window does not perform as specified, refer to Driver Window Switch Malfunction in «Circuit/System Testing»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows) .
5. Command the passenger window to go UP, DOWN, express UP and express DOWN by using the S79P window switch-passenger. The passenger window should perform the UP, DOWN, express UP and express DOWN function. If the passenger window does not perform as specified, refer to Passenger Window Malfunction «Circuit/System Testing»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows) .

Driver Window Switch Malfunction

1. Ignition OFF, disconnect the harness connector at the S79D window switch-driver.
2. Ignition ON, verify that the scan tool Driver Window Main Control Down Switch parameter is Inactive. If not the specified value, test the control circuit terminal 3 for a short to ground. If the circuit tests normal, test or replace the M74D window motor-driver.
3. Verify that the scan tool Driver Window Main Control Up Switch parameter is Inactive. If not the specified value, test the control circuit terminal 6 for a short to ground. If the circuit tests normal, test or replace the M74D window motor-driver.
4. Verify that the scan tool Driver Window Main Control Express Switch parameter is Inactive. If not the specified value, test the control circuit terminal 2 for a short to ground. If the circuit tests normal, test or replace the M74D window motor-driver.
5. If all circuits test normal, test or replace the S79D window switch-driver.

Passenger Switch Window Malfunction

1. Ignition OFF, disconnect the harness connector at the S79P window switch-passenger.
2. Ignition ON, test for greater than 10V between the signal circuit terminal listed below and ground: Signal circuit terminal 6 Signal circuit terminal 7 Signal circuit terminal 8 If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the M74P window motor-passenger.
3. If all circuits test normal, test or replace the S79P window switch-passenger.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Front Side Door Window Switch Replacement»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)
2. «Rear Side Door Window Switch Replacement»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)
3. «Rear Side Door Window Regulator Motor Replacement»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)

1. Perform the «Diagnostic System Check - Vehicle»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/buick/regal/v-2009-2013/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»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

The BCM monitors, receives and transmits serial data to each of the doors switches and window motors. When a window switch has been activated on the driver window switch, a signal is sent to the BCM which sends a signal to the appropriate window motor and the window motor will move in the direction commanded.

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

B3205 00, B3210 00, B3215 00, B3220 00

The BCM has detected that the compatibility code stored in the affected window motor does not match the compatibility code stored in the BCM.

B3205 39, B3210 39, B3215 39, B3220 39

An internal malfunction has been detected by the BCM in the power window motor while commanding the window UP or DOWN.

B3205 42, B3210 42, B3215 42, B3220 42

The BCM will automatically attempt to download the calibration program into the appropriate window motor (As will occur when the window motor has been replaced), if the first calibration program fails to load, the BCM will attempt to download the calibration program a second time. If this download fails, the BCM will set appropriate DTC.

B3205 4B, B3210 4B, B3215 4B, B3220 4B

The BCM detects that a window motor is "not normalized" which will occur under the following conditions

1. When the battery has been disconnected
2. When the battery has been replaced
3. When the door wiring harness has been disconnected
4. When the window motor has been disconnected.

B3205 00, B3205 39, B3205 42, B3210 00, B3210 39, B3210 42, B3215 39, B3220 39

The affected motor will be inoperative.

B3205 4B, B3210 4B, B3215 4B, B3220 4B

The affected motor will not perform the express up or express down functions and the driver information center will display Open, then Close Driver Window or will display Open, then Close Passenger Window.

B3205 00, B3210 00, B3215 00, B3220 00

Installing a compatible window motor for that specific make and model vehicle.

B3205 39, B3210 39, B3215 39, B3220 39

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

B3205 42, B3210 42, B3215 42, B3220 42

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

B3205 4B, B3210 4B, B3215 4B, B3220 4B

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

Schematic Reference

Moveable Window Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/buick/regal/v-2009-2013/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

B3205 00, B3205 39, B3205 42, B3210 00, B3210 39, B3210 42, B3215 00, B3215 39, B3215 42, B3220 00, B3220 39, B3220 42

1. Ignition ON, command the M74 window motor UP and DOWN with a scan tool. The M74 window motor should perform the UP and DOWN functions.
2. Replace the M74 window motor with a M74 window motor compatible for that specific make and model vehicle.

B3205 4B, B3210 4B, B3215 4B, B3220 4B

1. Ignition ON, starting with the window completely UP, press and hold the appropriate power window switch until the window is fully open and continue holding the switch down for approximately 5 seconds after the window is completely open.
2. Pull the power window switch up until the window is fully closed and continue holding the switch up for approximately 5 seconds after the window is completely closed.
3. Command the window to express UP and express DOWN by pressing the window switch past the first detent and releasing and then pulling the window switch past the first detent and releasing. The window should perform the express UP and express DOWN functions. If the M74 window motor does not perform as specified and the DTC resets, replace the M74 window motor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Front Side Door Window Regulator Motor Replacement»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)
2. «Rear Side Door Window Regulator Motor Replacement»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)
3. «Control Module References»(/buick/regal/v-2009-2013/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for BCM replacement, setup and programming

Important Preliminary Checks Before Starting

1. Perform the «Diagnostic System Check - Vehicle»(/buick/regal/v-2009-2013/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 power window system operation or rear window defogger system operation in order to familiarize yourself with the system functions. Refer to the following: «Rear Window Defogger Description and Operation»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows) «Power Windows Description and Operation»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the rear window defogger. Refer to «Checking Aftermarket Accessories»(/buick/regal/v-2009-2013/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

Note. Inspect for proper installation of electrical components if an intermittent condition exists. Inspect for aftermarket theft deterrent devices, lights, and cellular phones. Ensure that no aftermarket equipment is connected to the class 2 circuit. If you can not locate an intermittent condition, a cellular phone signal may cause the condition. Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections . The problem may or may not turn ON the SERVICE VEHICLE SOON indicator or store a DTC. Do not use the symptom tables to diagnose intermittent conditions. The malfunction must be present in order to locate the problem.

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

1. Poor mating of the connector halves or a terminal not fully seated in the connector body
2. An improperly formed or damaged terminal
3. Reform or replace connector terminals in the problem circuit in order to ensure proper contact tension.
4. Poor terminal to wire connection requires removing the terminal from the connector body in order to perform the check.

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

Symptom List

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

1. «Rear Window Defogger Malfunction»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)
2. «Power Windows Malfunction»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)

1. Perform the «Diagnostic System Check - Vehicle»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/buick/regal/v-2009-2013/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»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

When the HVAC control module receives a rear window defog request from the HVAC control faceplate, the HVAC control module will supply voltage to the relay coil. Battery positive 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 to flow through the switch contacts and out the relay switched output to the rear window defogger grid.

Diagnostic Aids

The rear window defogger indicator will still function when the rear defogger switch is pressed, but any of the following conditions may cause the rear window defogger grid not to function

1. The battery state of charge is out of range causing the HVAC control module to suspend the rear window defogger operation.
2. The Remote Start Enable ambient temperature is greater than 5°C (40°F).

Schematic Reference

Defogger Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Rear Window Defogger Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

1. Engine running, observe the scan tool Rear Defogger Switch parameter while pressing the heated rear window switch. The parameter should change from Inactive to Active. If the value does not change, replace the A26 HVAC control.
2. Observe the operation of the rear window defogger indicator while pressing the heated rear window switch. The indicator should turn ON or OFF each time the heated rear window switch is pressed. If the indicator does not turn ON or OFF with each switch press, replace the A26 HVAC control.
3. Command the rear window defogger grid ON and OFF with a scan tool, the rear window defogger grid should turn ON or OFF while changing between the commanded states.

1. Ignition OFF, disconnect the KR5 rear defogger relay.
2. Test for less than 10 ohms between the ground circuit terminal 85 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Engine running, verify 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 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 E18 rear window defogger grid.
6. Test for less than 10 ohms between the ground circuit terminal 1 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
7. Connect the X2 harness connector at the E18 rear window defogger grid.
8. Engine running, connect a 40 A fused jumper wire between the B+ circuit terminal 30 and the control circuit terminal 87. Verify the E18 rear window defogger grid is activated. If the E18 rear window defogger grid does not activate, and the circuit fuse is good, test the control circuit for an open/high resistance. If the circuit tests normal, test or replace the E18 rear window defogger grid. If the E18 rear window defogger grid does not activate, and the circuit fuse is open, test the control circuit for a short to ground. If the circuit tests normal, test or replace the E18 rear window defogger grid.
9. Connect a test lamp between the control circuit terminal 86 and the ground circuit terminal 85.
10. Command the E18 rear window defogger grid 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 K33 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 K33 HVAC control module.
11. If all circuits test normal, test or replace the KR5 rear defogger relay.

Rear Window Defogger Grid Test

1. Engine running, turn on the E18 rear window defogger grid.
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.

Relay Test

1. Ignition OFF, disconnect the KR5 rear defogger relay.
2. Test for 60-180 ohms between terminals 85 and 86. If not within the specified range, replace the KR5 rear defogger 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 KR5 rear defogger relay.
4. Install a 25 A fused jumper wire between relay terminal 85 and 12 V. 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 KR5 rear defogger relay.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Rear Window Replacement»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)
2. «Relay Replacement (Within an Electrical Center)»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions) , «Relay Replacement (Attached to Wire Harness)»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-repair-instructions)
3. «Control Module References»(/buick/regal/v-2009-2013/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for HVAC control module and HVAC control replacement, setup, and programming

1. Perform the «Diagnostic System Check - Vehicle»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
2. Review «Strategy Based Diagnosis»(/buick/regal/v-2009-2013/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»(/buick/regal/v-2009-2013/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.

When a window switch is pressed on the driver window switch, a serial data message is sent to the body control module (BCM). The BCM examines the request and checks for messages from other power window motors prohibiting the window movement. If no prohibitive messages have been received, the BCM will send a serial data message to the passenger window motor or to the appropriate rear window switch which will perform the command as requested.

Each power window motor is controlled by their respective window switches. When a power window switch is activated to a desired position, power window switch will send a signal to its respective door window motor to move the window to the desired position.

The loss of the express up and express down functions for the driver and passenger windows may have occurred for the following reasons

1. The battery was disconnected
2. The battery was replaced
3. A door wiring harness was disconnected
4. A window motor was disconnected or replaced

The window motors will need to be normalized in order to restore the express functions, refer to Window Motor Programming - Express Function for the proper procedure.

Schematic Reference

Moveable Window Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS -- INDEX

Description and Operation

Power Windows Description and Operation

Electrical Information Reference

1. «Circuit Testing»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
2. «Connector Repairs»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
3. «Testing for Intermittent Conditions and Poor Connections»(/buick/regal/v-2009-2013/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
4. «Wiring Repairs»(/buick/regal/v-2009-2013/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 driver, passenger, left rear and right rear window UP and DOWN with a scan tool, Each window should perform the UP and DOWN commands. If the driver and passenger windows do not perform as specified, refer to Both Front Windows Inoperative in «Circuit/System Testing»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows) . If the driver window does not perform as specified, refer to Single Front Window Motor Inoperative in «Circuit/System Testing»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows) . If the passenger window does not perform as specified, refer to Single Front Window Motor Inoperative in «Circuit/System Testing»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows) . If the left rear window does not perform as specified, refer to Rear Window Inoperative in «Circuit/System Testing»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows) . If the right rear window does not perform as specified, refer to Rear Window Inoperative in «Circuit/System Testing»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows) .
2. Command the driver window UP, DOWN, Express UP and Express DOWN with the driver window switch, The driver window should perform the UP, DOWN, Express UP and Express DOWN commands. If the driver window does perform as specified, refer to Driver Window Malfunction in «Circuit/System Testing»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows) .
3. Observe the scan tool Left Rear Main Control Down Switch, Left Rear Main Control Express Switch, Left Rear Main Control Up Switch, Right Rear Main Control Down Switch, Right Rear Main Control Express Switch, Right Rear Main Control Up Switch, Front Passenger Main Control Down Switch, Front Passenger Main Control Express Switch, and the Front Passenger Main Control Up Switch parameters while using the appropriate switches on the driver window switch. The values should change from Inactive to Active for each switch used. If any of the values are always Inactive or always Active, refer to Driver Switches Malfunction «Circuit/System Testing»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows) .
4. Command the passenger window UP, DOWN, Express UP and Express DOWN with the passenger window switch, The passenger window should perform the UP, DOWN, Express UP and Express DOWN commands. If the passenger window does perform as specified, refer to Passenger Window Malfunction in «Circuit/System Testing»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows) .

Both Front Windows Inoperative

1. Ignition OFF, disconnect the harness connector at the S79D window switch-driver.
2. Disconnect the harness connector at the M74D window motor-driver
3. Disconnect the harness connector at the M74P window motor-passenger
4. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal listed below and ground. B+ circuit terminal 2-M74D window motor-driver B+ circuit terminal 2-M74P window motor-passenger If the test lamp does not illuminate and the B+ circuit fuse is open, test each B+ circuit for a short to ground. If the circuit tests normal, test for a shorted front M74 window motor.
5. Test for 5-10 V between the serial data circuit terminal listed below and ground. Serial data circuit terminal 4-M74D window motor-driver Serial data circuit terminal 5-S79D window switch-driver Serial data circuit terminal 4-M74P window motor-passenger If less than the specified range, test each serial data circuit for a short to ground.
6. If all circuits test normal, test for a shorted front M74 window motor or a shorted S79D window switch-driver

Single Front Window Motor Malfunction

1. Ignition OFF, disconnect the harness connector at the appropriate front M74 window motor.
2. After 10 minutes, test for less than 10 ohms between the ground circuit terminal 1 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 an open/high resistance.
4. Test for 5-10 V between the serial data circuit terminal 4 and ground. If greater than the specified range, test the serial data circuit for a short to voltage. If less than the specified range, test the serial data circuit for an open/high resistance.
5. If all circuits test normal, replace the front M74 window motor.

Rear Window Malfunction

1. Ignition OFF, disconnect the harness connector at the appropriate rear S79 window switch.
2. Test for less than 5 ohms between the ground circuit terminal 5 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 8 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 5-10 V between the serial data circuit terminal 1 and ground. If greater than the specified range, test the serial data circuit for a short to voltage. If less than the specified range, test the serial data circuit for a short to ground or an open/high resistance.
5. Ignition OFF, connect the harness connector at the rear S79 window switch.
6. Disconnect the harness connector at the appropriate rear M74 window motor.
7. Test for less than 5 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 rear S79 window switch.
8. Test for less than 5 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 rear S79 window switch.
9. Connect a test lamp between the control circuit terminal A and control circuit terminal B.
10. Ignition ON, command the rear window UP and DOWN using the S79R window switch-rear. The test lamp should briefly illuminate when commanding the UP and DOWN states. If the test lamp does not illuminate during either of the commands, test both control circuits for a short to ground. If the circuits test normal, replace the rear S79 window switch.
11. If all circuits test normal, test or replace the rear M74 window motor.

Driver Window Malfunction

1. Ignition OFF, disconnect the harness connector at the S79D window switch-driver.
2. After 10 minutes, test for less than 10 ohms between the ground circuit terminal 1 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that the scan tool Driver Window Main Control Down Switch parameter is Inactive. If not the specified value, test the signal circuit terminal 7 for a short to ground. If the circuit tests normal, replace the M74D window motor-driver.
4. Connect a 3 A fused jumper wire between the signal circuit terminal 7 and ground. Verify that the scan tool Driver Window Main Control Down Switch parameter 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 M74D window motor-driver.
5. Verify that the scan tool Driver Window Main Control Up Switch parameter is Inactive. If not the specified value, test the signal circuit terminal 8 for a short to ground. If the circuit tests normal, replace the M74D window motor-driver.
6. Connect a 3 A fused jumper wire between the signal circuit terminal 8 and ground. Verify that the scan tool Driver Window Main Control Up Switch parameter 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 M74D window motor-driver.
7. Verify the scan tool Driver Window Main Control Express Switch parameter is Inactive. If not the specified value, test the signal circuit terminal 6 for a short to ground. If the circuit tests normal, replace the M74D window motor-driver.
8. Connect a 3 A fused jumper wire between the signal circuit terminal 6 and ground, verify the scan tool Driver Window Main Control Express Switch parameter is Active. If not the specified value, test the signal circuit terminal for a short to voltage or an open/high resistance. If the circuit tests normal, replace the M74D window motor-driver.
9. If all circuits test normal, replace the S79D window switch-driver.

Driver Switches Malfunction

1. Ignition OFF, disconnect the harness connector at the S79D window switch-driver.
2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 4 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
3. Test for 5-10 V between the serial data circuit terminal 5 and ground. If greater than the specified range, test the serial data circuit for a short to voltage. If less than the specified range, test the serial data circuit for an open/high resistance.
4. If all circuits test normal, replace the S79D window switch-driver.

Passenger Window Malfunction

1. Ignition OFF, disconnect the harness connector at the S79P window switch-passenger.
2. Test for less than 10 ohms between the ground circuit terminal 1 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that the scan tool Passenger Window Switch at Door parameter is Inactive. If the value is Up, test the signal circuit terminal 8 for a short to ground. If the circuit tests normal, test or replace the M74P window motor-passenger. If the value is Down, test the signal circuit terminal 7 for a short to ground. If the circuit tests normal, test or replace the M74P window motor-passenger.
4. Connect a 3 A fused jumper wire between the signal circuit terminal 8 and ground, verify that the scan tool Passenger Window Switch at Door parameter is Up. 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 M74P window motor-passenger.
5. Connect a 3 A fused jumper wire between the signal circuit terminal 7 and ground, verify that the scan tool Passenger Window Switch at Door parameter is Down. 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 M74P window motor-passenger.
6. Test for greater than 10 V between the signal circuit terminal 6 and ground. If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the 74P window motor-passenger.
7. If all circuits test normal, test or replace the S79P window switch-passenger.

1. Ignition OFF, disconnect the harness connector at the appropriate rear M74 window motor.
2. Install a 30 A fused jumper wire between one of the control terminals and 12 V. Momentarily install a jumper wire between the other control terminal and ground. Reverse the jumper wires at least two times, the rear M74R window motor should perform the UP and DOWN functions. If it does not perform as specified, replace the rear M74 window motor.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

1. «Front Side Door Window Switch Replacement»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)
2. «Rear Side Door Window Switch Replacement»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)
3. «Front Side Door Window Regulator Motor Replacement»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)
4. «Rear Side Door Window Regulator Motor Replacement»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows)

Special Tools

1. BO-24402-A Glass Sealant Remover (Cold Knife)
2. BO-39032 Stationary Glass Removal Tool
3. Use an adhesive that is approved by GM

For equivalent regional tools, refer to Special Tools

1. Open the hood.
2. Remove the windshield wiper arms and blades. Refer to «Windshield Wiper Arm Replacement»(/buick/regal/v-2009-2013/remont/wiperwasher-systems/#wiper-system-and-washer-system) .
3. Remove the air inlet grille panel. Refer to «Air Inlet Grille Panel Replacement»(/buick/regal/v-2009-2013/remont/wiperwasher-systems/#wiper-system-and-washer-system)
4. Remove the windshield garnish moldings. Refer to «Windshield Side Garnish Molding Replacement»(/buick/regal/v-2009-2013/remont/exteriorinterior-trim/#interior-trim-and-interior-paneling) .
5. Remove the rearview mirror. Refer to «Inside Rearview Mirror Replacement»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system) .
6. Disconnect the rain sensor connector, if equipped.
7. Disconnect the diversity antenna, if equipped.
8. Cover to protect the following parts from broken glass: Upper dash pad Defroster outlets and A/C outlets Seats and carpeting
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 clear water. BO-24402-A Glass Sealant Remover (Cold Knife). BO-39032 Stationary Glass Removal Tool.
10. Remove the bottom of the windshield from the urethane adhesive using a long utility knife or similar tool. Keep the cutting edge of the utility knife against the glass. Do this from inside the vehicle.
11. Remove the windshield (1) from the vehicle with the aid of an assistant (2).

Installation Procedure

1. Install the windshield into the opening. Refer to «Adhesive Installation of Windshields»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows__adhesive-installation-of-windshields) .
2. Install the air inlet grille panel. Refer to «Air Inlet Grille Panel Replacement»(/buick/regal/v-2009-2013/remont/wiperwasher-systems/#wiper-system-and-washer-system)
3. Install the windshield wipers arms and blades. Refer to «Windshield Wiper Arm Replacement»(/buick/regal/v-2009-2013/remont/wiperwasher-systems/#wiper-system-and-washer-system)
4. Install the windshield garnish molding. Refer to «Windshield Side Garnish Molding Replacement»(/buick/regal/v-2009-2013/remont/exteriorinterior-trim/#interior-trim-and-interior-paneling) .
5. Install the rearview mirror. Refer to «Inside Rearview Mirror Replacement»(/buick/regal/v-2009-2013/remont/mirrors/#mirror-system) .
6. Connect the rain sensor connector, if equipped.
7. Connect the diversity antenna, if equipped.
8. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.
9. Close the hood.

Causes of Slow Moving Window

1. Listed below are conditions that may cause a slow moving window. The window run channel outboard lip at the rearview mirror is rolled over or the window run channel outboard lip at the rear of door frame (2). The window is not seated in the run channel. The window is misaligned in the opening. The regulator is misaligned causing misalignment of the window. Inspect the power window motor for being loose.
2. After inspecting the conditions above, do the following: Remove the front door trim panel.
3. Remove the water deflector.
4. Ensure that the window guide is fully seated and clipped.
5. Ensure that the window is fully seated into the window guide run channel.
6. Inspect the window for equal distance between the front and rear run channels.

Scheme 5

1. Inspect for the following conditions before making adjustments. Using a flat-bladed tool, straighten the run channel lip by pulling it out to its correct position. Use a flat-bladed tool to push the run channel rearward to seat it in the door frame. Inspect the window guide retainer to window for the proper alignment to the slots in the window. Inspect the window to be straight up and down position. Loosen the fasteners that attach the window regulator (1) to the inner door panel, in the specified sequence (2, 3, 4).
2. Tighten the fasteners that attach the front side door window regulator (1) to the inner door panel in the specified sequence (2, 3, 4) to 11 N.m (97 lb in).
3. Inspect the window for proper operation.
4. Install the water deflector.
5. Install the front door trim panel.

Scheme 6

Front Side Door Window Replacement

1. Listed below are conditions that may cause a slow moving window: The window run channel outboard lip at the rear of door frame. The window is not seated in the run channel. The window is misaligned in the opening. The regulator is misaligned causing misalignment of the window.
2. After inspecting the conditions above, do the following: Remove the rear door trim panel. Remove the water deflector. Ensure that the window guide is fully seated and clipped. Ensure that the window is fully seated in the window guide run channel. Inspect the window for equal distance between the front and rear run channels. Inspect the power window motor for being loose. Inspect the window for alignment.

Adjustment Procedure

1. Remove the rear side door trim panel.
2. Inspect for the following conditions before making adjustments: Using a flat-bladed tool, straighten the run channel lip by pulling it out to its correct position. Use a flat-bladed tool to push the run channel rearward to seat it in the door frame. Inspect the window guide channel to window fasteners to ensure that they are in the proper slots and the window is not tilted forward. Inspect the window to be straight up and down position. Loosen the fasteners that attach the window regulator (1) to the inner door panel, in the specified sequence (2, 3, 4).
3. Loosen the fasteners that attach the rear side door window regulator (1) to the inner door panel in the specified sequence (2, 3, 4). Tighten the fasteners to 11 N.m (97 lb in).
4. Inspect the window for proper operation.
5. Install the water deflector.
6. Install the rear door trim panel.

Scheme 7

Rear Side Door Window Replacement

Scheme 8

Rear Side Door Stationary Window Replacement

1. BO-24402-A Glass Sealant Remover (Cold Knife)
2. BO-39032 Stationary Glass Removal Tool
3. Use an adhesive that is approved by GM

For equivalent regional tools, refer to Special Tools

Removal Procedure

1. Open the rear compartment lid.
2. Disconnect the rear window defogger electrical connectors.
3. Disconnect the OnStar® antenna, if equipped.
4. Disconnect the rear window radio antenna connector.
5. Cover to protect the following parts from broken glass: Upper dash pad Defroster outlets and A/C outlets Seats and carpeting
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 clear water. BO-24402-A Glass Sealant Remover (Cold Knife). BO-39032 Stationary Glass Removal Tool.
7. With the aid of an assistant lift the rear window from the opening.

1. Install the rear window into the opening. Refer to «Adhesive Installation of Rear Windows»(/buick/regal/v-2009-2013/remont/heated-glassdefoggers/#fixed-and-moveable-windows__adhesive-installation-of-rear-windows) .
2. Connect the rear window defogger electrical connectors.
3. Install the rear window radio antenna connector.
4. Connect the OnStar® antenna, if equipped. 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.

Scheme 9

Front Side Door Window Switch Replacement

Scheme 10

Rear Side Door Window Switch Replacement

Scheme 11

Front Side Door Window Regulator Replacement

Window Motor Normalized Procedure

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

1. When a window motor has been disconnected or replaced
2. When a door harness has been disconnected
3. When the battery has been disconnected or replaced

Note. When DTC B3205 4B & 3210 4B are set, the following warnings will be displayed on the driver information center: Open, then Close Driver Window Open, then Close Passenger Window These warnings will clear once the windows have been "Normalized" and the respective DTC will clear.

To normalize the window motor, follow these steps

1. Ignition ON.
2. Starting with the window completely UP, press and hold the power window switch until the window is fully open and continue holding the switch down for approximately 5 seconds after the window is completely open.
3. Pull the power window switch up until the window is fully closed and continue holding the switch up for approximately 5 seconds after the window is completely closed.

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

Window Motor Relearn Procedure

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

1. When the window glass is out of alignment
2. When the window glass has been replaced
3. When the door has been replaced
4. When the window regulator has been replaced

Note. Prior to performing the relearn procedure the vehicle must have all 4 wheels properly inflated and mounted, the vehicle must be sitting on a level surface and all doors must be completely closed and for vehicles equipped with a folding convertible top, the top must be closed and firmly latched.

To relearn the window motor, follow these steps

1. Ignition ON.
2. With a scan tool, select Module Diagnosis, Body Control Module, Configuration/Reset Functions and then select the appropriate Clear Window Learn Values for the window motor requiring the relearn procedure.
3. After the learn procedure, exit the scan tool learn procedure completely, the power window cannot be normalized and will not function until you exit the program.
4. Starting with the window completely UP, press and hold the power window switch until the window is fully open and continue holding the switch down for approximately 5 seconds after the window is completely open.
5. Pull the power window switch up until the window is fully closed and continue holding the switch up for approximately 5 seconds after the window is completely closed.

The window is now reprogrammed.

Scheme 12

Front Side Door Window Regulator Motor Replacement

Scheme 13

Rear Side Door Window Regulator Replacement

Scheme 14

Rear Side Door Window Regulator Motor Replacement

Scheme 15

Front Side Door Window Outer Sealing Strip Replacement

Scheme 16

Front Side Door Window Inner Sealing Strip Replacement

Scheme 17

Rear Side Door Window Inner Sealing Strip Replacement

Scheme 18

Rear Side Door Window Outer Sealing Strip Replacement

Scheme 19

Front Side Door Window Weatherstrip Replacement

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 pinch-weld area.
3. If the original window is being reused, remove all but a thin film of the existing urethane adhesive from the window surface by using a clean utility knife or razor blade scraper.
4. Inspect for any of the following problems in order to help prevent future breakage of the window: High weld Solder spots 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. If equipped, ensure that the windshield locator pins are positioned into the locator slots on the upper pinch-weld flange.
12. Use masking tape in order to mark the locations (1) of the window (2) in the opening.
13. Cut the masking tape in the center and remove the window from the opening.
14. Use a new dauber in order to apply glass prep clear #1 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 #1 to the same area of the glass.
16. Shake the glass primer black #2 for at least 1 minute.
17. 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.
18. Allow the glass primer to dry for approximately 10 minutes.
19. Cut the applicator nozzle in order to provide a minimum urethane bead of 8 mm (0.31 in) wide and 16 mm (0.63 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 (1) in the opening.
23. Align the masking tape (1) lines on the window (2) and the body.
24. Press firmly around the entire periphery of the windshield 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.

Adhesive Installation of Rear Windows

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 a thin film of the existing urethane adhesive from 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 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 (2).
9. Allow the pinch-weld primer to dry for approximately 10 minutes.
10. With the aid of an assistant, dry fit the window (2) to the opening in order to determine the correct position.
11. Ensure that the locator pins (1) are positioned into the locator slots on the upper pinch-weld flange.
12. Use masking tape (1) to mark the locations of the window (2) 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 #1 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 #1 to the same area of the glass.
16. Shake the glass primer black #2 for at least 1 minute.
17. 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.
18. Allow the glass primer to dry for approximately 10 minutes.
19. Cut the applicator nozzle in order to provide a minimum urethane bead of 8 mm (0.31 in) wide and 16 mm (0.63 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 (2) and locator (1) in the opening.
23. Align the masking tape (1) lines on the window (2) 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

Note. If corrosion of the pinch-weld flange is present, or if sheet metal repairs or replacements are required, refinish the pinch-weld flange in order to present a clean, primer-only surface. If paint repairs are required, mask the flange bonding area, prior to applying the color coat, in order to provide a clean, primer-only surface. Appropriate materials for these primer applications are typically 2 component catalyzed products. Use materials such as BASF DE15®, DuPont 2610®, Sherwin-Williams PSE 4600 and NP70® and Martin-Semour 5120, 5130®, PPG DP90LF SPIES/HECKER 3688/8590 - 3688/5150 - 4070/5090 STANDOX 11158/13320 - 14653/14980 products are approved for this application. Follow the manufacturer's directions for the mix, the application, and the drying times. After repairing the opening as indicated, shake the pinch-weld primer black #3 well. Using a new dauber, apply the primer to the primed surface of the flange in the bonding area. Allow the primer to dry for 10 minutes.

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

This method includes the following

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

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

Power Windows System Components

The power window system consists of the following components

1. Driver window switch
2. Passenger window switch
3. Left rear window switch
4. Right rear window switch
5. Window motors in each of the doors
6. LT WDO 30A Fuse
7. MIR WDO MDL 5A Fuse
8. RT WDO 30A Fuse
9. Body control module (BCM)

Driver and Passenger Express Up and Express Down Power Window Motors

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

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

The driver window switch communicates to the BCM by a serial data circuit. When the driver wishes to control the passenger window, the driver will use the appropriate switch on the driver window switch. When this switch is used, a serial data message is sent to the BCM requesting the passenger window motor command, the BCM will then send a serial data message to the passenger window motor which will then move in the direction requested.

Left Rear, Right Rear Express Down Window Motors

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

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

Lockout Switch Feature

The driver power window switch contains a window lockout switch, when the driver presses the window lockout switch, a serial data message is sent to the BCM which will send a disable command to the rear window switches, deactivating them. The rear windows will still function normally from the switches on the driver window switch.

Rear Window Defogger System Components

The rear window defogger system consists of the following components

1. HVAC Control Module
2. HVAC Control Head
3. Rear Window Defogger Relay
4. Rear Defogger Grid
5. F28UA 40A Fuse

Rear Window Defogger Operation

The rear defog control system utilizes a single zone backlight design, driven with a single relay configuration. Additionally, up to two outside rear view mirrors can be heated if required. A switch for the customer to control the system is provided within the HVAC control head. Also included in the HVAC control head is an indicator to inform the customer with the current state of the system. The system is only operational when engine is running or during remote start.

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

When the rear heated window switch is pressed and the engine is running, the rear defog control system will remain active for 10 minutes. After the initial cycle has lapsed, pressing the switch again will continue rear window defogger operation, but the cycle will only last 5 minutes. The rear defog control system will function continuously if the vehicle speed is greater than 70 kilometers per hour (45 mph).

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.

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 -- INDEX
• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs
• Control Module References
• Diagnostic Repair Verification
• Relay Replacement (Within an Electrical Center)
• Checking Aftermarket Accessories
• Windshield Wiper Arm Replacement
• Windshield Side Garnish Molding Replacement
• Inside Rearview Mirror Replacement
• Glass and Sheet Metal Handling Warning
• Fastener Caution
• Paint Damage Caution
• Front Side Door Window Frame Rear Cover Replacement
• Window Retention Warning
• DTC B0283
• Adhesive Installation of Windshields
• Adhesive Installation of Rear Windows