Power Sunroof Does Not Open To Express Position

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
Schematic Reference: Power Sunroof Schematics
1	Did you perform the Power Sunroof Diagnostic System Check?	Go to Step 2	Go to Diagnostic System Check - Power Sunroof
2	Perform the sunroof re-initialization. Refer to Sunroof Motor Synchronization . Does the express open feature operate normally?	System OK	Go to Step 3
3	Replace the power sunroof module. Refer to Power Sunroof Motor Replacement . Did you make the replacement?	Go to Step 4	-
4	Perform the sunroof re-initialization. Refer to Sunroof Motor Synchronization . Operate the system in order to verify the repair? Did you correct the condition?	System OK	Go to Step 2