GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Inspect FUSE 19 for an open.

Is FUSE 19 open?

--

Go to Step 2

Go to Step 3

2

Repair short to ground in circuit and replace FUSE 19.

Has the repair been made and the system rechecked?

--

System OK

--

3

Use a test lamp in order to backprobe between the outside remote control rearview mirror switch connector C1 terminals F and ground.

Did the test light illuminate?

--

Go to Step 4

Go to Step 8

4

Use a test lamp in order to backprobe between the outside remote control rearview mirror switch connector C1 terminal F and terminal D.

Did the test light illuminate?

--

Go to Step 5

Go to Step 11

5

Inspect the outside remote control rearview mirror switch connector C1 for a poor connection.

Did you find a poor connection at the outside remote control rearview mirror switch connector C1?

--

Go to Step 6

Go to Step 7

6

Repair the poor connection at the outside remote control rearview mirror switch connector C1.

Has the repair been made and the system rechecked?

--

System OK

--

7

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

Has the repair been made and the system rechecked?

--

System OK

--

8

Inspect circuit 1140 for a poor connection.

Did you find a poor connection in circuit 1140?

--

Go to Step 9

Go to Step 10

9

Repair the poor connection in circuit 1140.

Has the repair been made and the system rechecked?

--

System OK

--

10

Repair the open in circuit 1149 between FUSE 19 terminal A6 and the outside remote control rearview mirror switch connector C1.

Has the repair been made and the system rechecked?

--

System OK

--

11

Inspect circuit 750 for a poor connection.

Did you find a poor connection in circuit 750?

--

Go to Step 12

Go to Step 13

12

Repair the poor connection in circuit 750.

Has the repair been made and the system rechecked?

--

System OK

--

13

Repair the open circuit 750 between the outside remote control rearview mirror switch connector C1 terminal D and G302.

Has the repair been made and the system rechecked?

--

System OK

--