Circuit/System Testing

Lockout Switch Malfunction

1. Ignition OFF, disconnect the harness connector C3 at the BCM.
2. Ignition ON, connect a test lamp between the control circuit terminal B11and ground.
3. Press the Lockout Switch ON and OFF. The test lamp should turn ON and OFF.
   • If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, test or replace the driver window switch.
   • 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, test or replace the driver window switch.
4. If all circuits test normal, replace the BCM.

All Power Windows Inoperative

1. Ignition OFF, disconnect the harness connector C1 at the driver window switch.
2. Ignition OFF, test for less than 1 ohm of resistance 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 an open/high resistance. If the POWER WINDOWS fuse is open, check the B+ circuit for a short to ground. If the circuit tests normal, test or replace the retained accessory power (RAP) relay.
4. If all circuits test normal, test or replace the driver window switch.

Driver Power Window Inoperative

1. Ignition OFF, disconnect the harness connector at the driver window motor.
2. Ignition OFF, test for less than 1 ohm of resistance 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 circuits test normal, test or replace the driver window switch.
3. Ignition OFF, test for less than 1 ohm of resistance 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 circuits test normal, test or replace the driver window switch.
4. Connect a test lamp between control circuit terminal A and control circuit terminal B.
5. Command the driver window UP and DOWN by pressing the driver window switch. The test lamp should turn ON when commanding the UP and DOWN states.
   • If the test lamp remains OFF during either of the commands, test for a short to ground on either control circuit. If the circuits test normal, test or replace the driver window switch.
6. If all circuits test normal, test or replace the driver window motor.

Passenger Power Window Inoperative

1. Ignition OFF, disconnect the harness connector at the appropriate 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 and the lockout switch is CLOSED, test the B+ circuit for an open/high resistance.
3. Ignition OFF, test for less than 1 ohm of resistance between the control circuit terminal H and ground.
   • If greater than the specified range, test the control circuit for a short to voltage or an open/high resistance. If circuits test normal, test or replace the driver window switch.
4. Ignition OFF, test for less than 1 ohm of resistance between the control circuit terminal D and ground.
   • If greater than the specified range, test the control circuit for a short to voltage or an open/high resistance. If circuits test normal, test or replace the driver window switch.
5. Connect a test lamp between the control circuit terminal D and control circuit terminal H.
6. Ignition ON, command the appropriate passenger window UP and DOWN by pressing the appropriate window control on the driver window switch. The test lamp should illuminate during either of the commands.
   • If the test lamp is always OFF, test for a short to ground on either control circuit. If all circuits test normal, test or replace the driver window switch.
7. Ignition OFF, reconnect the appropriate passenger window switch.
8. Ignition OFF, disconnect the harness connector at the appropriate passenger window motor.
9. Ignition OFF, test for less than 1 ohm of resistance 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 circuits test normal, replace the appropriate passenger window switch.
10. Ignition OFF, test for less than 1 ohm of resistance 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 circuits test normal, replace the appropriate passenger window switch.
11. Connect a test lamp between control circuit terminal A and control circuit terminal B.
12. Ignition ON, command the appropriate passenger window UP and DOWN by pressing the appropriate passenger window switch. The test lamp should turn ON when commanding the UP and DOWN states.
    • If the test lamp remains OFF during either of the commands, test for a short to ground on either control circuit. If the circuits test normal, test or replace the appropriate passenger window switch.
13. If all circuits test normal, test or replace the appropriate passenger window motor.