GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Outside Mirrors System Check performed?

--

Go to Step 2

Refer to Outside Mirrors System Check

2

  1. Disconnect the outside rear view mirror control switch.
  2. Connect a test lamp from CKT 840 (ORN) cavity G at the outside rear view mirror control switch to ground.

Does the test lamp light?

--

Go to Step 4

Go to Step 3

3

Locate and repair an open in CKT 840 (ORN) between the outside rear view mirror control switch and the underhood fuse block.

Do the mirrors operate properly?

--

Refer to Outside Mirrors System Check

Go to Step 4

4

Connect a test lamp from CKT 840 (ORN) cavity G to CKT 1850 (BLK) cavity B at the outside rear view mirror control switch.

Does the test lamp light?

--

Go to Step 5

Go to Step 6

5

Replace the outside rear view mirror control switch.

Do the mirrors operate properly?

--

Refer to Outside Mirrors System Check

Go to Step 6

6

Locate and repair an open in CKT 1850 (BLK) between the outside rear view mirror control switch and G202.

Do the mirrors operate properly?

--

Refer to Outside Mirrors System Check

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