GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Mirror System Check?

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Go to Step 2

Go to Outside Mirrors System Check

2

  1. Disconnect the right power mirror connector.
  2. Move the mirror select switch to the RIGHT position.
  3. Connect a test lamp between the mirror switch connector terminal A and terminal C.
  4. Operate the mirror switch to the UP position and the DOWN position.

Does the test lamp light in both positions?

--

Go to Step 3

Go to Step 5

3

  1. Connect a test lamp between the mirror switch connector terminal C and terminal B.
  2. Operate the mirror switch to the RIGHT position and the LEFT position.

Does the test lamp light in both positions?

--

Go to Step 4

Go to Step 6

4

Replace the right mirror drive unit. Refer to Power Mirror Drive Replacement.

Is the repair complete?

--

Go to Outside Mirrors System Check

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5

Test the following circuits for an open:

    • CKT 1497
    • CKT 1498

Did you find an open in either of the circuits?

--

Go to Step 7

Go to Step 8

6

Test the for an open in CKT 881.

Did you find an open in CKT 881?

--

Go to Outside Mirrors System Check

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7

Repair the open in the faulty circuit. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Outside Mirrors System Check

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8

Replace the outside mirror switch.

Is the repair complete?

--

Go to Outside Mirrors System Check

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