Schematic Reference: Outside Rearview Mirror Schematics

Connector End View Reference: Vehicle Access Connector End Views

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

1. Place the mirror select switch in the left mirror position.
2. Activate the mirror position switch in the UP, DOWN, LEFT and RIGHT directions and note the operation.
3. Place the mirror select switch in the right mirror position.
4. Activate the mirror position switch in the UP, DOWN, LEFT and RIGHT directions and note the operation.

Do both power mirrors operate properly?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

1. Install a scan tool.
2. Monitor the mirror select switch, mirror switch horizontal and vertical data parameters.
3. Activate the mirror select switch to the left and right mirror positions.
4. Activate the mirror direction switch to the UP, DOWN, LEFT and RIGHT positions.

Do all of the mirror data parameters change properly with the corresponding switch activations?

Go to Step 6

Go to Step 4

Do any of the mirror data parameters change with the corresponding switch activations?

Go to Step 10

Go to Step 5

1. Connect a test lamp to good ground.
2. Backprobe the switch power circuit at the power mirror switch harness connector at the driver door module.

Does the test lamp illuminate?

Go to Step 10

Go to Step 8

With the scan tool command the inoperative mirror UP, DOWN, LEFT and RIGHT.

Does the mirror move with the corresponding scan tool command?

Go to Step 11

Go to Step 7

1. Disconnect the inoperative mirror.
2. Connect a test lamp between the appropriate mirror motor control circuits for the inoperative direction(s).
3. With a scan tool, command the mirror in the inoperative direction(s).

Does the test lamp illuminate with the corresponding scan tool command?

Go to Step 9

Go to Step 11

Inspect for poor connections at the driver door module (DDM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs.

Did you find and correct the condition?

Go to Step 16

Go to Step 12

Inspect for poor connections at the power mirror. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs.

Did you find and correct the condition?

Go to Step 16

Go to Step 13

Inspect for poor connections at the power mirror switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs.

Did you find and correct the condition?

Go to Step 16

Go to Step 14

Inspect for poor connections at the appropriate door module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs.

Did you find and correct the condition?

Go to Step 16

Go to Step 15

Replace the DDM. Refer to Control Module References for replacement, setup, and programming.

Did you complete the repair?

Go to Step 16

--

Replace the power mirror. Refer to Outside Rearview Mirror Motor Replacement .

Did you complete the repair?

Go to Step 16

--

Replace the power mirror switch. Refer to Power Mirror Switch Replacement .

Did you complete the repair?

Go to Step 16

--

Replace the appropriate door module. Refer to Control Module References for replacement, setup, and programming.

Did you complete the repair?

Go to Step 16

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2