Power Window Switch: Testing and Inspection

The Light-Emitting Diode (LED) illumination lamps for all of the power window and lock switch and bezel unit switch paddles receive battery current through the power window circuit breaker in the junction block. If all of the LEDs are inoperative in either or both power window and lock switch and bezel units and the power windows are inoperative, perform the diagnosis for Power Window System. If the power windows operate, but any or all of the LEDs are inoperative, the power window and Lock switch and must be replaced.
1. Check the circuit breaker in the junction block. If OK, go to Step 2. If not OK, replace the faulty circuit breaker.
2. Turn the ignition switch to the ON position. Check for battery voltage at the circuit breaker in the junction block. If OK, turn the ignition switch to the OFF position and go to Step 3. If not OK, repair the circuit to the ignition switch as required.
3. Disconnect and isolate the battery negative cable. Remove the power window switch unit from the door trim panel (passenger doors only). For diagnosis of the driver side power window switch (Refer to POWER LOCKS/DOOR MODULE - DIAGNOSIS AND TESTING). Unplug the wire harness connector from the switch unit.

Passenger Door Switch:

4. Test the power window switch continuity. See the Power Window Switch Continuity chart to determine if the continuity is correct in the Neutral, Up and Down switch positions. If OK, (Refer to POWER WINDOWS/WINDOW MOTOR - DIAGNOSIS AND TESTING). If not OK, replace the faulty switch.