GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Sunroof Schematics

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2

Perform the sunroof re-initialization. Refer to Sunroof Motor/Actuator Synchronization .

Does the express open feature operate normally?

System OK

Go to Step 3

3

Replace the power sunroof motor. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you make the replacement?

Go to Step 4

--

4

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2