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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 643 (Fixed & MOVEABLE Window Systems) >> Diagnostic Information and Procedures >> Power Windows Inoperative - All (Sedan) >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Lockout Switch Malfunction

  1. Ignition ON, activate the lockout parameter by pressing the lockout switch on the driver window switch. Command each of the rear passenger windows UP and DOWN using the appropriate rear door passenger window switches. Both rear door passenger window switches should be inoperative.
    • If both rear passenger windows continue to function, test or replace the driver window switch.
  2. Ignition ON, deactivate the lockout parameter my pressing the Lockout Switch on the driver window switch. Command each of the rear passenger windows UP and DOWN using the appropriate rear door passenger window switches. Both rear door passenger windows should function UP and DOWN as commanded.
    • If both rear windows are inoperative, test or replace the driver window switch.

All Power Windows Inoperative

  1. Ignition OFF, disconnect the B+ harness connector 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 PWR WNDW fuse is open, check the B+ circuit for a short to ground. If the circuit tests normal, replace the BCM.
  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, 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, 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, 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, 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, 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.
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