GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Disconnect the automatic day-night rear view mirror connector.
  2. Place the ignition switch in the RUN position.
  3. Connect a test lamp between the automatic day-night rear view mirror connector cavity C1and ground.

Does the test lamp light?

--

Go to Step 2

Go to Step 3

2

Connect a test lamp between B+ and automatic day-night rear view mirror connector cavity 2.

Does the test lamp light?

--

Go to Step 4

Go to Step 5

3

Repair the open in CKT 39 (PNK) between automatic day-night rear view mirror connector and the IP fuse block. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Automatic Day-Night Mirrors System Check

--

4

Replace the automatic day-night rear view mirror. Refer to Inside Rearview Mirror Replacement .

Is the repair complete?

--

Go to Automatic Day-Night Mirrors System Check

--

5

Repair the open in CKT 150 (BLK) between the automatic day-night rear view mirror and G200. Refer to Wiring Repairs in Wiring Systems.

Is the repair compete?

--

Go to Automatic Day-Night Mirrors System Check

--