GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open.

1

  1. Move the power mirror select switch to the RIGHT position.
  2. Use a test lamp in order to backprobe the power mirror switch between terminal D and terminal F (B and C Pontiac).
  3. Move the power mirror switch to the following positions:
  4. • The LEFT position
    • The RIGHT position

Does the test lamp light with the switch in both positions?

--

Go to Step 2

Go to Step 4

2

  1. Use a test lamp in order to backprobe the power mirror switch between terminal C and terminal D (A and C Pontiac)
  2. Move the power mirror switch to the following positions:
  3. • The UP position
    • The DOWN position

Does the test lamp light with the switch in both positions?

--

Go to Step 3

Go to Step 4

3

  1. Disconnect the right mirror motor connector.
  2. Connect a test lamp between terminal A of the right mirror motor harness connector and ground.
  3. Move the power mirror switch to the LEFT position.

Does the test lamp light?

--

Go to Step 5

Go to Step 6

4

Replace the power mirror switch. Refer to Rear Side Door Window Switch Replacement .

Is the repair complete?

--

System OK

--

5

  1. Connect a test lamp between terminal B of the right mirror motor harness connector and ground.
  2. Move the power mirror switch to the RIGHT position.

Does the test lamp light?

--

Go to Step 7

Go to Step 8

6

Repair the open in the power mirror motor feed-right horizontal motor-left direction circuit between the power mirror switch and the right mirror motor. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

System OK

--

7

  1. Connect a test lamp between terminal C of the right mirror motor harness connector and ground.
  2. Move the power mirror switch to the DOWN position (Oldsmobile) and to the Up position (Pontiac).

Does the test lamp light?

--

Go to Step 9

Go to Step 10

8

Repair the open in the power mirror motor feed-right horizontal motor-right direction circuit between the power mirror switch and the right mirror motor. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

System OK

--

9

Replace the right mirror motor. Refer to Outside Rearview Mirror Replacement .

Is the repair complete?

--

System OK

--

10

Repair the open in the power mirror motor feed-right horizontal motor-down direction circuit (Oldsmobile) or the power mirror motor feed-right horizontal motor-up direction circuit (Pontiac) between the power mirror switch and the right mirror motor. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

System OK

--