Closing Force and Opening Drag Check

Remove the headliner (see HEADLINER REMOVAL/INSTALLATION ).
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.
Closing force: 200-290 N (20-30 kgf, 44-66 lbf)

Fig 1: Identifying Shop Towel On Leading Edge Of Glass
Courtesy of AMERICAN HONDA MOTOR CO., INC.
If the force in not within specification, remove the moonroof motor (see MOTOR REPLACEMENT ), then check:
- The gear portion and the inner cable for breakage and damage. If the gear portion is broken, replace the motor. If the inner cable is damaged, remove the frame (see FRAME AND DRAIN TUBE REPLACEMENT ), and replace the cable (see DRAIN CHANNEL SLIDER AND CABLE ASSEMBLY REPLACEMENT ).
- The moonroof motor (see MOONROOF MOTOR TEST ). If the motor fails to run or doesn't turn smoothly, replace it.
- The opening drag. Go to step 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.

Fig 2: Measuring Effort To Open Glass Using Spring Scale
Courtesy of AMERICAN HONDA MOTOR CO., INC.
If the load is over 40 N (4 kgf, 9 lbf), check:
- The side clearance and glass position adjustment (see GLASS POSITION ADJUSTMENT ).
- For broken or damaged sliding parts. If any sliding parts are damaged, replace them.