Operation CHARM: Car repair manuals for everyone.

Power Mirrors Inoperative



Power Mirrors Inoperative

Diagnostic Aids

* The battery positive voltage circuit of the power window switch is not protected by a fuse. Instead, the power window switch is designed to open internally should a circuit overload occur. A mirror motor control circuit shorted to ground could cause this type of failure.
* If both power mirrors are inoperative on one or more axis, the most probable cause is a power mirror switch failure. However the fault could be an open circuit on two or more of the power mirror control circuits.
* The power mirror assembly is equipped with a pigtail harness and is not serviceable. If an internal open or short is detected in the power mirror assembly, replace the power mirror assembly.

Test Description

Step 1 - Step 12:




Step 13 - Step 18:




The numbers below refer to the step numbers on the diagnostic table.
6. This step tests the integrity of both the mirror control circuits and the power mirror switch. If both power mirrors are inoperative on one or more axis, begin testing by disconnecting one of the power mirrors, if an open circuit is detected and repaired for that power mirror, repeat step 6 for the other power mirror.
7. This step tests the integrity of the battery positive voltage circuit.