Contents Section: Sun Roof/t-Top/convertible Top All sections

Power Moon Roof: Overview Lexus GS II рестайлинг

Sun Roof/t-Top/convertible Top 4 illustrations ~1095 words

DESCRIPTION & OPERATION

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In this system, the HALL IC in the moon roof control ECU 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 S/ROOF (25-amp) fuse, located in the passenger side junction block, to terminal No. 5 of the moon roof control ECU. When the ignition switch is turned to ON, the voltage is applied from the ECU-IG (15-amp) fuse, located in the driver side junction block, to terminal No. 8 of the moon roof control ECU.

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.

KEY OFF MOON ROOF OPERATION

After the ignition switch is turned from ON to OFF, communication control of the body ECU and door ECU etc. allows the moon roof operation for 45 seconds. However, when the driver or front passenger door is opened during above moon roof operation, the moon roof operation is stopped even though 45 seconds have not elapsed.

MOON ROOF OPERATION LINKED WITH DOOR KEY LOCK & 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 seconds or longer, the slide open or close operation of the moon roof functions through communication control of the body ECU and door ECU etc.

MOON ROOF OPERATION LINKED WITH TRANSMITTER

When the unlock switch on the transmitter of the ignition key is kept pressed for 1.5 seconds or longer, the slide open operation of the moon roof functions through communication control of the body ECU and door ECU etc.

When the moon roof control switch is kept pressed to CLOSE position for approximately 0.3 seconds or longer (the limit switch No. 1 is off and limit switch No. 2 is off), the signal is input from terminal No. 4 of the moon roof control switch to terminal No. 10 of the moon roof control ECU. This activates the ECU and rotates the motor to automatically close the moon roof. After that, when the limit switch No. 2 is turned on, the pulse signal sent from the HALL IC activates the ECU, and it determines that the moon roof is fully closed, and stops the motor rotation. If other operation switch or close switch is operated while the moon roof is being closed, the ECU is activated to stop the moon roof operation.

SLIDE OPEN OPERATION

When the moon roof control switch is kept pressed to OPEN position for approximately 0.3 seconds or longer (the limit switch No. 1 is off and limit switch No. 2 is on), the signal is input from terminal No. 1 of the moon roof control switch to terminal No. 9 of the moon roof control ECU. This activates the ECU and rotates the motor to open the moon roof. After that, when the limit switch No. 1 is turned on, and then turned off again, the pulse signal sent from the HALL IC activates the ECU, and it determines that the moon roof is fully opened, and stops the motor rotation. If other operation switch or open switch is operated while the moon roof is being opened, the ECU is activated to stop the moon roof operation. Additionally, when the moon roof is tilted up, the slide open operation does not function.

When the moon roof control switch is kept pressed to TILT DOWN position for approximately 0.3 seconds or longer (the limit switch No. 1 is on and limit switch No. 2 is on), the signal is input from terminal No. 2 of the moon roof control switch to terminal No. 3 of the moon roof control ECU. This activates the ECU and rotates the motor to automatically tilt down the moon roof. When the limit switch No. 1 is turned off, the pulse signal sent from the HALL IC activates the ECU, and it determines that the moon roof is fully closed, and stops the motor rotation.

If other operation switch or tilt down switch is operated while the moon roof is being tilted down, the ECU is activated to stop the moon roof operation.

TILT UP OPERATION

When the moon roof control switch is kept pressed to TILT UP position for approximately 0.3 seconds or longer (the limit switch No. 1 is off and limit switch No. 2 is on), the signal is input from terminal No. 3 of the moon roof control switch to terminal No. 4 of the moon roof control ECU. This activates the ECU 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 seconds or longer when the moon roof is fully tilted up, the ECU 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 ECU is activated to stop the moon roof operation. Additionally, when the moon roof is open, the tilt up operation does not function.

Scheme 1

Scheme 1: COMPONENT LOCATIONS
  1. Before making adjustments, remove the left and right moon roof garnishes. After adjustment, reinstall the moon roof garnishes.
  2. Adjust Level Difference - Using a Torx driver, adjust the level difference by tightening or loosening the bolts. (Scheme 2) Clearance should be -2 to 2 mm (-0.079 to 0.079 in.).
  3. Adjust Forward Or Rearward - Adjust by loosening the moon roof installation nuts and move the moon roof bracket forward and backward. When the front or rear alignment is not correct, remove the glass and adjust the driver rail. Using a screwdriver, slide the link forward or backward to align the 2 marks. (Scheme 3) Slide the bracket to the forefront with you hand.
  4. Adjust Right Or Left - Adjust by loosening the moon roof rear shoe installation nuts and move the moon roof to the right and left.
  5. Adjust Clearance - Adjust difference in left and right clearance. (Scheme 4) Adjust by loosening the moon roof installation nuts and readjust the moon roof to the proper position.

Scheme 2

Scheme 2

Scheme 3

Scheme 3

Scheme 4

Scheme 4