GM Service Manual Online
For 1990-2009 cars only

LH Mirror Inoperative

Step

Action

Value(s)

Yes

No

DEFINITION: The LH mirror does not move UP or DOWN, LEFT or RIGHT.

1

Were you sent here from the Outside Mirror System Check?

--

Go to Step 2

Go to Outside Mirrors System Check

2

Can the power mirror move in any direction?

--

Go to Step 3

Go to Step 12

3

Can the power mirror move left and right?

--

Go to Step 4

Go to Step 9

4

  1. Disconnect the LH front outside rearview mirror assembly connector.
  2. Using a test lamp, front probe cavity 3 to ground.

When you activate the switch to the DOWN position does the test lamp illuminate?

--

Go to Step 5

Go to Step 6

5

Replace the LH front outside mirror assembly. Refer to Power Mirror Replacement .

Is the replacement complete?

--

Go to Outside Mirrors System Check

--

6

Test for an open in the LT GRN wire between the outside rearview mirror switch and the mirror assembly.

Is their an open in the wire?

--

Go to Step 8

Go to Step 7

7

Replace the Power Mirror Switch. Refer to Power Mirror Switch Replacement .

Is the replacement complete?

--

Go to Outside Mirrors System Check

--

8

Repair the open in the LT GRN wire between the outside rearview mirror switch and the mirror assembly. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Outside Mirrors System Check

--

9

  1. Disconnect the LH front power mirror Assembly connector.
  2. Using a test lamp, front probe cavity 1 to ground.

When you activate the switch to the LEFT position does the test lamp illuminate?

--

Go to Step 5

Go to Step 10

10

Test for an open in the BLU wire between the outside rearview mirror switch and the mirror assembly.

Does the wire have an open in it?

--

Go to Step 7

Go to Step 11

11

Repair the open in the BLU wire. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Outside Mirrors System Check

--

12

  1. Disconnect the LH front outside rearview mirror assembly connector.
  2. Using a test lamp, front probe cavity 2 to ground.

When you activate the switch to the UP position does the test lamp illuminate?

--

Go to Step 5

Go to Step 13

13

Test the BRN/RED wire between the outside rearview mirror switch and the mirror assembly.

Does the wire have an open in it?

--

Go to Step 7

Go to Step 14

14

Repair the open in the BRN/RED wire between the outside rearview mirror switch and the mirror assembly. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Outside Mirrors System Check

--