Power Sunroof Operation

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The sunroof motor/module assembly has 2 power circuits battery positive voltage and the retained accessory power (RAP) supply voltage circuit. The Sunroof 20 A fuse is hot at all times suppling the battery positive voltage circuit for the operation of the sunroof motor. The RAP supply voltage circuit is for the sunroof module logic circuitry and is controlled from, or by the body control module (BCM), depending on the wiring configuration. The power sunroof will operate with the ignition switch turned to Accessory or RUN suppling RAP supply voltage. Once the ignition switch is turned to OFF the sunroof will continue to operate until any door is open or when the RAP has timed out. For a description and operation of the RAP operation, refer to Retained Accessory Power (RAP) Description and Operation in Retained Accessory Power.

Use the rocker type sunroof switch to command the sunroof to :

Express Open
Close
Vent

Pressing the sunroof switch rearward, the sunroof glass will slide from:

Vent position to the closed position
Closed position to the open position

Pressing the sunroof switch forward, the sunroof glass will slide from:

Open position to the closed position
Closed position to the vent position