GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Is the LH outside rearview mirror inoperative?

--

Go to Step 2

Go to Step 7

2

  1. Disconnect the LH outside rearview mirror wiring harness connector.
  2. Using a test light, backprobe between the LH outside rearview mirror harness connector (male side) terminal B and ground.
  3. Set the outside remote control rearview mirror switch to LH mirror.
  4. Press and hold the outside remote control rearview mirror switch LEFT button.

Does the test light illuminate?

--

Go to Step 3

Go to Step 4

3

Replace the LH mirror motor pack. Refer to Outside Rearview Mirror Motor Replacement .

Has the repair been made and the system rechecked?

--

Go to Outside Mirrors System Check

--

4

Check for a poor connection or an open in circuit 82.

Is there a poor connection or an open in circuit 82?

--

Go to Step 5

Go to Step 6

5

Repair a poor connection or an open in circuit 82.

Has the repair been made and the system rechecked?

--

Go to Outside Mirrors System Check

--

6

Replace the outside remote control rearview mirror switch. Refer to Power Mirror Switch Replacement.

Has the repair been made and the system rechecked?

--

Go to Outside Mirrors System Check

--

7

  1. Disconnect the RH outside rearview mirror wiring harness connector.
  2. Using a test light, backprobe between the RH outside rearview mirror harness connector (male side) connector terminal B and ground.
  3. Set the outside remote control rearview mirror switch to RH mirror.
  4. Press and hold the outside remote control rearview mirror switch LEFT button.

Does the test light illuminate?

--

Go to Step 8

Go to Step 9

8

Replace the RH mirror motor pack. Refer to Outside Rearview Mirror Motor Replacement .

Has the repair been made and the system rechecked?

--

Go to Outside Mirrors System Check

--

9

Check for a poor connection or an open in circuit 90.

Is there a poor connection or an open in circuit 90?

--

Go to Step 10

Go to Step 6

10

Repair a poor connection or an open in circuit 90.

Has the repair been made and the system rechecked?

--

Go to Outside Mirrors System Check

--