Sunroof / Moonroof: Description and Operation

With the ignition switch in ON (II) (and for 10 minutes after it is switched to LOCK (0) and as long as both doors remain closed), the integrated control unit provides voltage to the coil of the power window relay. The contacts of the power window relay close, and voltage is applied to the coil of the moonroof relays.

When you move the moonroof switch to OPEN position, ground is provided to the coil of the moonroof open" relay. The coil contacts then close, providing voltage to the motor, the motor runs, and the roof opens. The motor is grounded through the contacts of the moonroof "close" relay.

When you move the moonroof switch to the CLOSE position, ground is provided to the coil of the moonroof "close" relay. The contacts then close, providing voltage to the motor, the motor runs and the roof closes. The ground path for the motor is through the contacts of the moon roof "open" relay.