When the ignition switch is in the RUN or ACCY position, or retained accessory power (RAP) is enabled and the driver or passenger window switch is pressed in the down position, voltage is applied to the appropriate window motor causing that window to open. When the driver or passenger window switch is pulled in the up position, voltage is applied to the appropriate window motor in the opposite direction causing that window to close.

The driver master control contains a rear window lockout switch which disconnects the battery positive voltage supply to both rear passenger door window switches, disabling them. The RR and LR window switches on the driver master control will continue to function normally.

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. Ignition ON, command each window UP and DOWN by using the driver, passenger and rear window switches. Each window should perform the UP and DOWN functions from each switch.

⇒	If the driver window does not perform the UP or DOWN function, refer to Driver Window Malfunction.

⇒	If the passenger window does not perform the UP or DOWN function, refer to Passenger Window Malfunction.

⇒	If either rear window does not perform the UP or DOWN function, refer to Rear Window Malfunction.

2. Disable and enable the rear window switches by pressing and depressing the lockout switch on the driver master control. The rear window switches should be enabled and disabled when changing between the commanded states.

⇒	If both rear window switches continue to function while disabled, refer to Lockout Switch Malfunction.

3. Command the express down of the driver window by pressing the driver window switch past the first detent and releasing. The driver window should perform the express down function.

⇒	If the function does not perform as specified, replace the driver window switch.

Driver Window Malfunction

1. Ignition OFF, disconnect the X1 harness connector at the driver window switch.
2. Test for less than 1 ohm between the ground circuit terminal B and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal E 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 harness connector at the driver window switch and disconnect the harness connector at the driver window motor.
5. Test for less than 1 ohm 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, test or replace the driver window switch.

6. Test for less than 1 ohm 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, test or replace the driver window switch.

7. Connect a test lamp between the control circuit terminal A and control circuit terminal B.
8. Ignition ON, command the driver door window UP and DOWN by using the driver window switch. The test lamp should illuminate when commanding the UP and DOWN states.

⇒	If the test lamp does not illuminate during either of the commands, test both control circuits for a short to ground. If the circuits test normal, test or replace the driver window switch.

9. If all circuits tests normal, test or replace the driver window motor.

Passenger Window Malfunction

1. Ignition OFF, disconnect the harness connector at the passenger window switch.
2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal A and ground.

⇒	If the test lamp does not illuminate, test the B+ circuit for an open/high resistance.

3. Ignition OFF, test for less than 1 ohm between the signal circuit terminal H and ground.

⇒	If greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the driver window switch.

4. Test for less than 1 ohm between the signal circuit terminal D and ground.

⇒	If greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the driver window switch.

5. Connect a test lamp between the signal circuit terminal D and signal circuit terminal H.
6. Ignition ON, command the passenger window UP and DOWN by using the RF window switch on the driver master control. The test lamp should illuminate when commanding the UP and DOWN states.

⇒	If the test lamp does not illuminate during either of the commands, test both signal circuits for a short to ground. If the circuits test normal, test or replace the driver window switch.

7. Ignition OFF, connect the harness connector at the passenger window switch and disconnect the harness connector at the passenger window motor.
8. Test for less than 1 ohm 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, test or replace the passenger window switch.

9. Test for less than 1 ohm 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, test or replace the passenger window switch.

10. Connect a test lamp between the control circuit terminal A and control circuit terminal B.
11. Ignition ON, command the passenger window UP and DOWN by using the passenger window switch. The test lamp should illuminate when commanding the UP and DOWN states.

⇒	If the test lamp does not illuminate during either of the commands, test either control circuit for a short to ground. If the circuits test normal, test or replace the passenger window switch.

12. If all circuits test normal, test or replace the passenger window motor.

Rear Window Malfunction

1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.

Note: Check the lockout switch on the driver window switch and verify the rear window switches are enabled.

2. Ignition ON, verify that a test lamp illuminates between the control circuit terminal E and ground.

⇒	If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the driver window switch.

3. Ignition OFF, test for less than 1 ohm between the signal circuit terminal C and ground.

⇒	If greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the driver window switch.

4. Test for less than 1 ohm between the signal circuit terminal H and ground.

⇒	If greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the driver window switch.

5. Connect a test lamp between the signal circuit terminal C and signal circuit terminal H.
6. Ignition ON, command the rear window UP and DOWN using the window switch on the driver master control. The test lamp should illuminate when commanding the UP and DOWN states.

⇒	If the test lamp does not illuminate during either of the commands, test both signal circuits for a short to ground. If the circuits test normal, test or replace the driver window switch.

7. Ignition OFF, connect the harness connector at the rear window switch and disconnect the harness connector at the rear window motor.
8. Test for less than 1 ohm 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, test or replace the rear window switch.

9. Test for less than 1 ohm 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, test or replace the rear window switch.

10. Connect a test lamp between the control circuit terminal A and control circuit terminal B.
11. Ignition ON, command the rear window UP and DOWN using the rear window switch. The test lamp should 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, test or replace the rear window switch.

12. If all circuits test normal, test or replace the rear window motor.

Lockout Switch Malfunction

1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
2. Connect a test lamp between the control circuit terminal E and ground.
3. Command the rear window lockout ON and OFF by pressing and depressing the lockout switch on the driver master control. 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 test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance.

4. If all circuits test normal, test or replace the driver window switch.

Driver Window Switch

1. Ignition OFF, disconnect theX1 and X2 harness connectors at the driver window switch.
2. Test for less than 2 ohms between the lockout control terminal F and the B+ terminal E with the lockout switch in the ENABLE position.

⇒	If greater than the specified value, replace the driver window switch.

3. Test for infinite resistance between the lockout control terminal F and the B+ terminal E with the lockout switch in the DISABLE position.

⇒	If less than the specified value, replace the driver window switch.

4. With the switch in the INACTIVE position, test for infinite resistance between the appropriate signal and control terminals and the B+ terminal E listed below:

•	Control terminal A

•	Signal terminal B

•	Signal terminal C

•	Signal terminal D

•	Control terminal E

•	Signal terminal G

•	Signal terminal H

⇒	If less than the specified value, replace the driver window switch.

5. With the switch in the UP position, test for less than 2 ohms between the control terminals and the B+ terminal E listed below:

•	Signal terminal D

•	Signal terminal G

•	Signal terminal B

•	Control terminal E

⇒	If greater than the specified range, replace the driver window switch.

6. With the switch in the DOWN position, test for less than 2 ohms between the control terminals and the B+ terminal E listed below:

•	Signal terminal C

•	Signal terminal H

•	Signal terminal C

•	Control terminal A

⇒	If greater than the specified range, replace the driver window switch.

Front Passenger Window Switch

1. Ignition OFF, disconnect the harness connector at the passenger window switch.
2. Test for infinite resistance between the control terminals G and F and the B+ terminal A with the switch in the INACTIVE position.

⇒	If less than the specified value, replace the passenger window switch.

3. Test for less than 2 ohms between the control terminal G and the B+ terminal A with the switch in the UP position.

⇒	If greater than the specified range, replace the passenger window switch.

4. Test for less than 2 ohms between the control terminal F and the B+ terminal A with the switch in the DOWN position.

⇒	If greater than the specified range, replace the passenger window switch.

Rear Window Switch

1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
2. Test for infinite resistance between the control terminals D and A and the control terminal E with the switch in the INACTIVE position.

⇒	If less than the specified value, replace the rear window switch.

3. Test for less than 2 ohms between the control terminal D and the control terminal E with the switch in the UP position.

⇒	If greater than the specified range, replace the rear window switch.

4. Test for less than 2 ohms between the control terminal A and the control terminal E with the switch in the DOWN position.

⇒	If greater than the specified range, replace the rear window switch.

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.