GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Check the F9-F10 fuse for an open.

Is the F9-F10 fuse open?

--

Go to Step 2

Go to Step 3

2

Repair short to ground in circuit 1140.

Has the repair been made and the system rechecked?

--

Go to Outside Mirrors System Check

--

3

Using a test light, backprobe between the outside remote control rearview mirror switch connector terminal G and ground.

Does the test light illuminate?

--

Go to Step 4

Go to Step 8

4

Using a test light, backprobe between the outside remote control rearview mirror switch connector terminal B and terminal G.

Does the test light illuminate?

--

Go to Step 5

Go to Step 9

5

Check the outside remote control rearview mirror switch connector for a poor connection.

Is there a poor connection at the outside remote control rearview mirror switch connector?

--

Go to Step 6

Go to Step 7

6

Repair a poor connection at the outside remote control rearview mirror switch connector.

Has the repair been made and the system rechecked?

--

Go to Outside Mirrors System Check

--

7

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

--

8

Repair a poor connection or an open in circuit 1140.

Has the repair been made and the system rechecked?

--

Go to Outside Mirrors System Check

--

9

Repair a poor connection or an open in circuit 750 between the outside remote control rearview mirror switch connector terminal B and G301.

Has the repair been made and the system rechecked?

--

Go to Outside Mirrors System Check

--