FixVault
Home › Hummer › 2009 › H3 Base, Automatic › Repair and Diagnosis › Body & Frame › Fixed And MOVEABLE Windows › Diagnostic Information and Procedures › Power Windows Malfunction › Circuit/System Testing › Rear Power Window Malfunction

Rear Power Window Malfunction

  1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
  2. Test for less than 1 ohm between the ground circuit terminal 3 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 6 and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  4. Enable the passenger window switches by using the window lockout switch on the driver master control.
  5. Test for greater than 10 volts between the control circuit terminal 5 and ground.
    • If less than the specified range, test the control circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the driver window switch.
  6. Disable the passenger window switches by using the window lockout switch on the driver master control.
  7. Test for less than 1 volt between the control circuit terminal 5 and ground.
    • If greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the driver window switch
  8. Connect at test lamp between the B+ circuit terminal 6 and the signal circuit terminal 4.
  9. Command the rear window DOWN using the window switch on the driver master control, the test lamp should illuminate during the DOWN command.
    • If the test lamp does not illuminate, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the driver window switch.
  10. Connect at test lamp between the B+ circuit terminal 6 and the signal circuit terminal 1.
  11. Command the rear window UP using the window switch on the driver master control, the test lamp should illuminate during the UP command.
    • If the test lamp does not illuminate, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the driver window switch.
  12. Ignition OFF, connect the harness connector at rear window switch and disconnect the harness connector at the rear window motor.
  13. Test for less than 1 ohm between the control circuit terminal 1 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 window switch.
  14. Test for less than 1 ohm between the control circuit terminal 2 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 window switch
  15. Connect a test lamp between the control circuit terminal 1 and control circuit terminal 2.
  16. Ignition ON, command the rear window UP and DOWN by using the rear window switch. The test lamp should illuminate when commanding the UP and DOWN states.
    • If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground. If the circuits test normal, replace the rear window switch.
  17. If all circuits test normal, test or replace the rear window motor.
About FixVault