GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: This diagnostic should only be used if the RH 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 right power outside rearview mirror.
  2. Position Selector Switch to the RH Power Mirror.
  3. Connect a test lamp from CKT 90 (GRY), 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 (BLK) 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 90 (GRY) 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 right 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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