Sunroof / Moonroof: Description and Operation

Circuit Description
Battery voltage is supplied at all times to open/tilt down and close/tilt up sunroof relay contacts. Open/tilt down relay and close/tilt up relay coils are also supplied battery voltage when the ignition switch is ON. When the ignition switch is ON, and the open switch is depressed, the open/tilt down relay coil is energized and battery voltage is then supplied to the sunroof motor through the open/tilt down relay contact. The motor is grounded through the close/tilt up relay contact.

When the ignition switch is ON, and the close switch is depressed, the close/tilt up relay coil is energized through the roof open/close limit switch. When the sunroof is open, the roof open/close limit switch always contacts the open position. The tilt up and tilt down switch works similarly to the open switch. The polarity of the voltage applied to the sunroof motor through the sunroof relay contacts changes according to the switch positions.