GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Inspect the PWR MIRR fuse.

Is the PWR MIRR fuse open?

--

Go to Step 2

Go to Step 3

2

Repair the short in CKT 1140.

Is the repair complete?

--

Go to Outside Mirrors System Check

--

3

Use a test light in order to backprobe between the outside remote control rearview mirror switch connector terminal E and the ground.

Does the test light illuminate?

--

Go to Step 4

Go to Step 8

4

Use a test light in order to backprobe between the outside remote control rearview mirror switch connector terminals E and D.

Does the test light illuminate?

--

Go to Step 5

Go to Step 11

5

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

Is there a poor connection?

--

Go to Step 6

Go to Step 7

6

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

Is the repair complete?

--

System OK

--

7

Replace the outside remote control rearview mirror switch. Refer to Outside Mirrors System Check

Is the repair complete?

--

System OK

--

8

Inspect CKT 1140 for a poor connection.

Is there a poor connection in CKT 1140?

--

Go to Step 9

Go to Step 10

9

Repair the poor connection in CKT 1140.

Is the repair complete?

--

System OK

--

10

Repair the open in CKT 1140 between the PWR MIRR fuse terminal F4 and the outside remote control rearview mirror switch connector.

Is the repair complete?

--

System OK

--

11

Inspect CKT 750 for a poor connection.

Is there a poor connection in CKT 750?

--

Go to Step 12

Go to Step 13

12

Repair the poor connection in CKT 750.

Is the repair complete?

--

System OK

--

13

Repair the open in CKT 750 between the outside remote control rearview mirror switch connector terminal D and G301.

Is the repair complete?

--

System OK

--