Circuit/System Testing

Driver Power Window Malfunction

1. Ignition OFF, disconnect the harness connector at the driver window switch.
2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 26 and ground.
   • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
3. Connect the harness connector at the driver window switch. Disconnect the harness connector at the driver window motor.
4. Ignition OFF, 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.
5. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 1 and ground.
   • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
6. Connect a test lamp between the control circuit terminal 2 and control circuit terminal 3.
7. Command the driver window UP and DOWN by using the driver window switch. The test lamp should illuminate when commanding the UP and DOWN states.
   • If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the driver window switch.
   • If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the driver window switch.
8. If all circuits test normal, replace the driver window motor.

Passenger Power 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 1 and ground.
   • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
3. Connect a test lamp between the control circuit terminal 3 and control circuit terminal 6.
4. 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 remains OFF during either of the commands, test either control circuit for a short to ground or open/high resistance. If the circuits test normal, replace the driver window switch.
   • If the test lamp is always ON, test either control circuit for a short to voltage. If the circuits test normal, replace the driver window switch.
5. Ignition OFF, connect the harness connector at the passenger window switch and disconnect the harness connector at the passenger window motor.
6. Connect a test lamp between the control circuit terminal 2 and the control circuit terminal 3.
7. 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 remains 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 passenger 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 passenger window switch.
8. If all circuits test normal, replace the passenger window motor.

Comfort Closing Command Malfunction

1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
2. Ignition ON, test for greater than 9 volts 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, replace the rear fuse block.
3. Test for less than 1 volt between the signal circuit terminal 6 and ground while commanding the Comfort Closing Test function with a scan tool.
   • If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the rear fuse block.
4. If all circuits test normal, replace the window motor.