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 left and right but will not move up and down.

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. Connect a test lamp from CKT 889 (PPL/WHT), to ground.
  3. Press the switch in the DOWN 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 DOWN position.

Does the test lamp light?

--

Go to Step 5

Go to Step 6

4

  1. Check for an open in CKT 889 (PPL/WHT) between the right power outside rearview mirror and the 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

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5

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

Is the repair complete?

--

Go to Outside Mirrors System Check

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6

Replace power outside rearview mirror switch.

Is the repair complete?

--

Go to Outside Mirrors System Check

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