Sunroof / Moonroof: Description and Operation

Circuit Operation
When the ignition switch is in ON or START the power window relay is energized and applies battery voltage to the sunroof control unit/motor. When you hold the sunroof switch in the OPEN position, the "open" relay energizes, supplying battery voltage to the sunroof motor, and the sunroof opens to the partial open position (least wind noise). At the moment the sunroof reaches that position, the limit switch sends a signal to the sunroof control unit, and the control unit stops the roof. After you release the sunroof switch and hold it in the OPEN position again, the sunroof motor opens the roof the rest of the way, until it reaches its mechanical limit. When you hold the switch in the CLOSE position, the "close" relay energizes, supplying battery voltage to the sunroof motor, and the roof closes to the partial close position (safety stop). At the moment the sunroof reaches that position, the limit switch sends a signal to the sunroof control unit, and the control unit stops the roof. After you release the sunroof switch and hold it in the CLOSE position again, the sunroof motor closes the sunroof the rest of the way until it reaches its mechanical limit.