Closing Force and Opening Drag Check
Closing Force and Opening Drag Check1. Remove the headliner.
2. Closing force check:
- With a shop towel (A) on the leading edge of the glass (B), attach a spring scale (C) as shown.
- Have an assistant hold the switch to close the glass while you measure the force required to stop it.
- Read the force as soon as the glass stops moving, then immediately release the switch and spring scale.
3. If the force in not within specification, remove the moonroof motor, then check:
- The gear teeth and the inner cable for breakage and damage. If the gear teeth are broken, replace the motor. If the inner cable is damaged, remove the frame, and replace the cable.
- Do the moonroof control unit input test. If the motor fails to run or doesn't turn smoothly, replace it.
- The opening drag. Go to step 4.
4. Opening drag check: Protect the leading edge of the glass with a shop towel (A). Measure the effort required to open the glass using a spring scale (B) as shown.
5. If the load is over 40 N (4 kgf, 9 lbf), check:
- The side clearance and glass position adjustment.
- For broken or damaged sliding parts. If any sliding parts are damaged, replace them.
6. Reset the moonroof control unit after reinstalling the moonroof motor.