Suburban 1/2 Ton 2WD V8-5.3L VIN T (2004)
Sunroof / Moonroof Motor: Service and Repair
Sunroof Motor/Actuator Synchronization
SUNROOF MOTOR/ACTUATOR SYNCHRONIZATION
Synchronization will be necessary anytime the sunroof module battery positive voltage circuit is interrupted. The sunroof module will be synchronized
when the controller learns the full vent position. The sunroof system will ignore any open request until the system has been synchronized.
To synchronize the sunroof:
1. Turn ON the ignition, with the engine OFF.
2. Using the close/tilt up portion of the sunroof switch, operate the sunroof glass until it reaches the full vent position.
3. Verify that the system operates normally.
Once the sunroof glass reaches the full vent position, the actual position is stored in the memory of the sunroof module. The sunroof module will stop the
motor one motor revolution before the defined actual positions.
