GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Outside Rearview Mirror Schematics

Connector End View Reference: Power Door Systems Connector End Views

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2

Verify that the mirror tilt in reverse is inoperative.

Does the mirror tilt in reverse operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Verify that the park assist option is ON. Refer to Vehicle Personalization in Personalization.

Is the park assist option ON?

Go to Step 4

Go to Vehicle Personalization in Personalization

4

Do the power mirrors operate properly?

Go to Step 5

Go to Power Mirrors Inoperative

5

Inspect for poor connections at the harness connector of the passenger door module (PDM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 7

Go to Step 6

6

Important: Perform the power window reinitialization procedure after replacing the door module. Refer to Door Control Module Programming and Setup in Programming and Setup.

Replace the appropriate door module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup and programming.

Did you complete the replacement?

Go to Step 7

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7

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2