Circuit/System Testing

Rear Passenger Window Switch Malfunction

1. Ignition OFF, disconnect the harness connector at the appropriate rear window switch.
2. Ignition ON, test for less than 1 ohm between the signal circuit terminal 4 and ground.
   • If greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the appropriate door module.
3. Test for B+ voltage between the reference circuit terminal 3 and ground.
   • If less than the specified value, test the reference circuit for a short to ground or and open/high resistance. If the circuit tests normal replace the door module.
4. If all circuits test normal, test or replace the rear window switch.

Window Motor Malfunction

1. Ignition OFF, disconnect the harness connector at the appropriate window motor.
2. 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.
3. 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.
4. Ignition OFF, connect the harness connector at the window motor.
5. Ignition ON, observe the scan tool Window Motor Fault Status parameter while using the power window switch, the status should read No Fault.
   • If the status reads Not Normalized, perform the Window Regulator Motor Programming and Setup . If the window motor cannot be reprogrammed, replace the window motor.
   • If the Status reads Motor Fault, Hall Fault, Memory Fault, LIN Fault, Anti-Trap Fault or Thermo Active, replace the power window motor.
6. If all circuits test normal, replace the window motor.