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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the Driver Window Switch.
  2. Ignition OFF, test for less than 1.0 ohm of resistance between the ground circuit terminal F 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 C and ground.
    • If the test lamp does not illuminate, test the B+ circuit for an open/high resistance. If the PWR WNDW circuit breaker is open, test the circuit terminal C for a short to ground.
    • If all circuits test normal, test or replace the Driver Window Switch.
  4. Ignition OFF, connect the harness connector at the Driver Window Switch.
  5. Ignition OFF, disconnect the Passenger Window Switch.
  6. 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.
  7. Ignition OFF, test for less than 1.0 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 the circuit tests normal, replace the Driver Window Switch.
  8. Ignition OFF, test for less than 1.0 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 the circuit tests normal, test or replace the Driver Window Switch.
  9. Connect a test lamp between control circuit terminal H and control circuit terminal D.
  10. Ignition ON, command the passenger door window UP and DOWN by pressing the passenger window control on the Driver Window Switch. The test lamp should illuminate during either of the commands.
    • If the test lamp remains OFF, test for a short to ground or an open/high resistance on either control circuit. If all circuits test normal, test or replace the Driver Window Switch.
  11. Ignition OFF, reconnect the Passenger Window Switch.
  12. Ignition OFF, disconnect the harness connector at the appropriate Window Motor.
  13. Ignition OFF, test for less than 1.0 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 the circuit tests normal, test or replace the appropriate window switch.
  14. Ignition OFF, test for less than 1.0 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 the circuit test normal, test or replace the appropriate window switch.
  15. Connect a test lamp between control circuit terminal A and control circuit terminal B.
  16. Ignition ON, command the appropriate window UP and DOWN by pressing the appropriate 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 Window Switch.
  17. If all circuits test normal, test or replace the appropriate Window Motor.
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