GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Turn the ignition switch to the RUN position.
  2. Disconnect the heated mirror switch.

Did the heated mirrors turn off?

--

Go to Step 3

Go to Step 2

2

Repair the short to voltage in CKT 142 (ORN) between the heated mirror switch, the left side heated mirror, and the right side heated mirror.

Did the heated mirrors turn off?

--

System OK

--

3

Replace the heated mirror switch.

Did the heated mirrors turn off?

--

System OK

--