Power Window Switch: Testing and Inspection

DIAGNOSIS AND TESTING - POWER WINDOW SWITCH





Any diagnosis of the power window system should begin with the use of the scan tool. For information on the use of the scan tool, refer to the appropriate Diagnostic Service Manual.

The diagnosis found here applies only to the rear door power window switches. If the problem being diagnosed is an inoperative power window switch illumination lamp, but the power window switch operates as designed, replace the faulty rear door power window switch (verify the power lockout switch is not actuated).

For complete circuit diagrams, refer to the appropriate wiring information.

1. Disconnect and isolate the battery negative cable.

2. Remove the power window switch from the rear door trim panel.

3. Check the rear door power window switch continuity as shown in the power window switch test chart. If OK, refer to Power Window testing.