Power Window Switch: Testing and Inspection

The following wiring test determines whether or not voltage is continuous through the body harness to switch.

Window Switch Connectors:

Remove switch for testing. Connect a voltmeter positive lead to Pin 4 and negative lead to Pin 3 of the switch connector. Turn ignition switch to the ON position. Voltmeter should read battery voltage. If OK, go to Window Switch Test. If not OK, check the 30 amp circuit breaker behind the fuse block or for a broken wire.

Driver Side Window Switch Continuity Test:

Passenger Side Window Switch Continuity Test:

Window Switch Test
Remove the switch from its mounting, refer to the Window Switch replacement procedures.. Using an ohmmeter, refer to the test procedures below, Driver Side or Passenger Side Window Switch Continuity Test to determine if continuity is correct. If the results are not obtained, replace the switch.