Sunroof / Moonroof: Description and Operation

Sunroof

The sunroof has two operating mechanisms. One raises the rear of the slide panel for ventilation and the other fully opens the panel.




The sunroof also has the following features:
- Use of the outer slide type provides the sunroof function despite the small size of the roof.
- The reduced thickness of the roof provides extra-overhead clearance in the passenger compartment.
- Die-cast aluminum is used for roof components, thus reducing weight.
- Sheet metal components are copper-plated for rust proofing.




1. TILT-UP MECHANISM
(Operation)
- The lower panel installed with the outer panel is secured to the lifter.
- When the "OPEN" switch is pressed, the slider is pulled back by the motor.
- The slider guide pin moves along the guide hole to tilt the rear of the lifter up.
- When the "OPEN" switch is pressed again, the slider is pulled back further. Since the slider guide pin is located at the rear end of the lifter guide hole, the lifter and slider move back as a unit to open the sunroof.




2. SUNROOF MOTOR
(Construction)
The sunroof motor consists essentially of a motor, timing gear and limit switch. The timing gear is provided with a pinion gear cam mechanism, and the limit switch turns the relay on or off according to the tilt-up position of the slide panel.




3. LIMIT SWITCH
This switch closes or opens according to the tilt-up position of the slide panel. It also activates when the slide panel reaches the 150 mm (5.91 in) open position.

4. SYSTEM OPERATION
The slide panel continuously opens while the "OPEN" switch is pressed, and stops at the specified tilt-up position.

When the switch is released and pressed again, the slide panel continues to move to the fully open position.

The slide panel continuously closes while the "CLOSE" switch is pressed, and stops at approximately the 150 mm (5.91 in) open position. When the switch is released and pressed again, the slide panel continues to move to the fully closed position.

- OPEN OPERATION




When the "OPEN" switch is pressed, current flows to activate the transistor and relay so that the motor rotates in the direction that opens the slide panel. (The P.U.T is held "OFF".)




The limit switch turns from "ON" to "OFF" so that the P.U.T. turns ON. This turns the transistor and relay off, and the motor will then stop.




When the "OPEN" switch is released, the P.U.T turns OFF The circuit is then held in a stand-by mode for ready operation.




When the "OPEN" switch is pressed again, the transistor and relay turn ON (the P.U.T. is held OFF). The motor will then rotate in the direction that opens the slide panel fully.

- CLOSED OPERATION




When the "CLOSE" switch is pressed, current flows to turn the transistor and relay ON (the P.U.T. is held OFF), the motor rotates in the direction that closes the slide panel.




The limit switch turns from ON to OFF (the P.U.T. turns ON), and the motor will stop.




When the "CLOSE" switch is released, the P.U.T. turns OFF, holding the circuit in a stand-by mode for ready operation.




When the "CLOSE" switch is pressed again, the transistor and relay turn ON. The motor will then rotate in the direction that closes the slide panel fully. (In this case, the slide panel does not stop at the tilt-up position.)




5. DRAIN TUBE LAYOUT
The front drain tube is routed to the inner side of the front wheel arch through the front pillar. The rear drain tube is routed to the back of the rear bumper through the side rail and rear pillar.