Cruze

Sunroof Control Module Programming and Setup

When replacing the sunroof motor/control module, the sunroof motor/actuator initialisation/teach procedure must be followed.

In order for the sunroof system to perform correctly it needs to establish its position and the force profile it will encounter under normal closing conditions. These two procedures need to be run when a new controller is placed on a vehicle, when a service procedure is performed on any mechanical component, or if the system seems to lose track of its known position.

When the sunroof controller is not initialised it will perform all OPEN requests, but no express CLOSE or LIN-Bus communicated close commands. It will only perform a CLOSE operation requested by the switch with obstacle detection disabled. If an initialisation procedure is interrupted the controllers will return to the not initialised state. Which procedure is run depends on the state of the controller.

For a module which is not initialised begin the process by holding the sunroof switch in the CLOSE position. The sunroof will move to the end of physical travel in the closed direction and store that position. During this time it is necessary to keep the switch active until the process completes. At the completion of the procedure the sunroof should back off slightly to its soft stops. The rest of the defined positions are determined by offsets from this home position.

For a module which has been previously initialised release the switch after the sunroof is considered fully closed by the software. Then hold the sunroof switch in the closed position for 10 s. The sunroof shall resume motion in the CLOSE direction until the end of travel is detected. During this time it is necessary to keep the switch active until the process completes. At the completion of the procedure the sunroof should back off slightly to its soft stops.

For learning the force profile for anti-pinch algorithm after initialisation or re-initialisation move the roof to the fully open position and release the switch. Activate the OPEN function of the switch continuously for more than 15 s. At this point, the sunroof will automatically begin to move to the fully closed position. During this time it is necessary to keep the switch active until the process completes.