Sunroof / Moonroof Module: Service and Repair
POWER SUNROOF MODULE REPLACEMENTREMOVAL PROCEDURE
1. Lower the headliner. Refer to Headliner Replacement (Trailblazer EXT Envoy XL) or Headliner Replacement (Trailblazer, Envoy, Bravada) in Interior Trim.
2. Disconnect the inline connector from the sunroof electrical harness.
3. With the aid of an assistant, remove the sunroof assembly from the vehicle and place on a clean, prepared surface. Refer to Sunroof Replacement
4. Remove the sunroof drive motor.
5. Remove the screw that retains the module to the mounting bracket.
6. Disconnect the 2 electrical connectors from the module.
7. Remove the module from the mounting bracket.
INSTALLATION PROCEDURE
IMPORTANT: Ensure that the drive gear is fully indexed and seated to the drive cables.
1. Position the module to the mounting bracket.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the screw that retains the module to the mounting bracket.
Tighten
Tighten the sunroof module screw to 3 N.m (27 lb in).
3. Connect the 2 electrical connectors to the module.
4. Install the drive motor to the sunroof assembly.
5. With the aid of an assistant, install the sunroof assembly to the vehicle. Refer to Sunroof Replacement.
6. Connect the inline connector on the sunroof electrical harness.
7. Install the headliner.