GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: This diagnostic should only be used if the LH Mirror moves up and down but will not move left and right.

1

Has the Outside Mirrors System Check been performed?

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Go to Step 2

Go to Outside Mirrors System Check

2

  1. Disconnect the left power outside rearview mirror.
  2. Position Selector Switch to the LH Power Mirror.
  3. Connect a test lamp from CKT 82 (LT BLU), cavity A, to ground.
  4. Press the switch in the LEFT position.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

  1. Connect a test lamp from CKT 981 (RED) to B+.
  2. Press the switch in the LEFT position.

Does the test lamp light?

--

Go to Step 5

Go to Step 6

4

  1. Check for an open in CKT 82 (LT BLU) between the mirror and the power outside rearview mirror switch. Repair as necessary. Refer to Wiring Repairs in Wiring Systems.
  2. If no opens are found, replace Power outside Rearview Mirror Switch.

Is the repair complete?

--

Go to Outside Mirrors System Check

--

5

Replace the left power outside rearview mirror. Refer to Outside Rearview Mirror Replacement .

Is the repair complete?

--

Go to Outside Mirrors System Check

--

6

Replace the power outside rearview mirror switch.

Is the repair complete?

--

Go to Outside Mirrors System Check

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