Sunroof / Moonroof: Description and Operation

In this system, the HALL IC in the moon roof control relay detects changes in the motor rotation to allow opening/closing and tilting up/down of the moon roof using one touch operation. Additionally, catching prevention mechanism during moon roof operation is also provided.
Voltage is always applied from the PWR fuse to TERMINAL 5 of the moon roof control relay. When the ignition SW is turned to ON, the voltage is applied from the PWR-IG fuse to TERMINAL 8 of the moon roof control relay.

1. SLIDE OPEN OPERATION
When the moon roof control SW is kept pressed to OPEN position for approximately 0.3 sec. or longer (The limit SW LS1 is off and limit SW LS2 is on), the signal is input from TERMINAL 4 of the moon roof control SW to TERMINAL 9 of the moon roof control relay. This activates the relay and rotates the motor to open the moon roof. After that, when the limit SW LS1 is turned on, and then turned off again, the pulse signal sent from the HALL IC activates the relay, and it determines that the moon roof is fully opened, and stops the motor rotation. If other operation SW or open SW is operated while the moon roof is being opened, the relay is activated to stop the moon roof operation. Additionally, when the moon roof is tilted up, the slide open operation does not function.

2. SLIDE CLOSE OPERATION
When the moon roof control SW is kept pressed to CLOSE position for approximately 0.3 sec. or longer the limit SW LS1 is off and limit SW L52 is off), the signal is input from TERMINAL 2 of the moon roof control SW to TERMINAL 10 of the moon roof control relay. This activates the relay and rotates the motor to automatically close the moon roof. After that, when the limit SW L52 is turned on, the pulse signal sent from the HALL IC activates the relay, and it determines that the moon roof is fully closed, and stops the motor rotation. If other operation SW or close SW is operated while the moon roof is being closed, the relay is activated to stop the moon roof operation.

3. TILT UP OPERATION
When the moon roof control SW is kept pressed to TILT UP position for approximately 0.3 sec. or longer the limit SW LS1 is off and limit SW L52 is on), the signal is input from TERMINAL 6 of the moon roof control SW to TERMINAL 4 of the moon roof control relay. This activates the relay and rotates the motor to automatically tilt up the moon roof. If the pulse signal sent from the HALL IC is not input for 0.5 sec. or longer when the moon roof is fully tilted up, the relay determines that the motor has stopped, and stops the current flowing into the motor.
If other operation SW or tilt up SW is operated while the moon roof is being tilted up, the relay is activated to stop the moon roof operation. Additionally, when the moon roof is open, the tilt up operation does not function.

4. TILT DOWN OPERATION
When the moon roof control SW is kept pressed to TILT DOWN position for approximately 0.3 sec. or longer the limit SW LS1 is on and limit SW L52 is on), the signal is input from TERMINAL 5 of the moon roof control SW to TERMINAL 3 of the moon roof control relay. This activates the relay and rotates the motor to automatically tilt down the moon roof. When the limit SW LS1 is turned off, the pulse signal sent from the HALL IC activates the relay, and it determines that the moon roof is fully closed, and stops the motor rotation.
If other operation SW or tilt down SW is operated while the moon roof is being tilted down, the relay is activated to stop the moon roof operation.

5. CATCHING PREVENTION FUNCTION
If the moon roof control relay detects a catching load from changes in the motor rotation during slide close or tilt down operation, the operation is stopped, and then the motor is rotated in the reverse direction.
Slide close operation
The moon roof is moved approximately 200 mm in the reverse direction (Slide open) after a catching load has been detected. However, if the full open position is detected before moving approximately 200 mm completely, the reverse movement is stopped.
Tilt down operation
If a catching load is detected during tilt down operation, the moon roof is fully tilted up.

6. KEY OFF MOON ROOF OPERATION
After the ignition SW is turned from ON to OFF, communication control of the body ECU and door ECU etc. allows the moon roof operation for 45 sec. However, when the driver or front passenger door is closed during above moon roof operation, the moon roof operation is stopped even though 45 sec. have not elapsed.

7. MOON ROOF OPERATION LINKED WITH TRANSMITTER
When the unlock SW on the transmitter of the ignition key is kept pressed for 1.5 sec. or longer, the slide open operation of the moon roof functions through communication control of the body ECU and door ECU etc.

8. MOON ROOF OPERATION LINKED WITH DOOR KEY LOCK AND UNLOCK SW
When the ignition key is inserted into the driver door key cylinder and kept turned to the lock or unlock position for approximately 1.5 sec. or longer, the slide open or close operation of the moon roof functions through communication control of the body ECU and door ECU etc.

9. FAIL SAFE FUNCTION
If the moon root is operated continuously in the same operating direction, the current flowing into the motor is cut off when the time shown below has elapsed after the motor operation has been started.
Slide open/close operation with the moon roof control SW Approximately 20 sec.
Tilt up/down operation with the moon roof control SW Approximately 2 sec.
Slide open operation for reverse movement in case of activation of the catching prevention function Approximately 20 sec.
Tilt open operation for reverse movement in case of activation of the catching prevention function Approximately 2 sec.