GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Is the inoperative mirror the left outside rearview mirror?

--

Go to Step 2

Go to Step 6

2

  1. Disconnect the left outside rearview mirror.
  2. Use a test light to probe between the left outside rearview mirror connector terminal A and ground.
  3. Set the outside mirror select switch to left mirror.
  4. Set and hold the outside remote control rearview mirror switch to UP.

Does the test light illuminate?

--

Go to Step 7

Go to Step 3

3

Use a J 39200 in order to test circuit 88 for a poor connection or an open.

Did you find a poor connection or an open in circuit 88?

--

Go to Step 4

Go to Step 5

4

Repair the poor connection or an open in circuit 88.

Is the repair complete and the system retested?

--

System OK

--

5

Replace the left outside remote control rearview mirror switch. Refer to Front Side Door Window Switch Replacement and Front Side Door Window Switch Replacement .

Is the repair complete and the system retested?

--

System OK

--

6

  1. Disconnect the right outside rearview mirror.
  2. Use a test light to probe between the right outside rearview mirror connector terminal A and ground.
  3. Set the outside mirror select switch to right mirror.
  4. Set and hold the outside remote control rearview mirror switch to UP.

Does the test light illuminate?

--

Go to Step 7

Go to Step 8

7

Replace the mirror motor pack within the outside rearview mirror. Refer to Outside Rearview Mirror Motor Replacement .

Is the repair complete and the system retested?

--

System OK

--

8

Use a J 39200 to in order to test circuit 1498 for a poor connection or an open.

Did you find a poor connection or an open in circuit 1498?

--

Go to Step 9

Go to Step 7

9

Repair the poor connection or an open in circuit 1498.

Is the repair complete and the system retested?

--

System OK

--