Description

Door glass reverse opens during auto-close

Possible Causes

• Extreme change in the sliding resistance of the glass while the door glass is closing.

• Power window motor malfunction.

• Object caught between the glass run channel and the door glass.

• Foreign matter caught between weatherstrip, front beltline molding and door glass

• Insufficient tightening of the door glass to the carrier plate.

• Glass run channel malfunction.

• Malfunction in weatherstrip, front beltline molding

• Glass guide related malfunction.

NOTE:

• The auto-reverse pinch protection function may operate if the sliding resistance of the door glass increases causing the closing speed to decrease.

• If the door glass closing speed has changed, concentrate the inspection on the following locations: (Slip occurrence)

• For the case of forward slipping, inspect the fit condition (such as door glass is too close or tilts forward) of the weatherstrip, door glass guide, glass run channel, and door glass.

• For the case of rearward slipping, inspect the weatherstrip.

STEP

INSPECTION

ACTION

1

• Inspect malfunction symptom.

• Does the malfunction symptom occur only under the following special conditions?:

• Driving on bumpy roads.

• Driving over railroad tracks.

• Opening/closing the door.

Yes

The system is normal.

(Explain to the customer that this does not indicate a malfunction because the system is designed to reverse the door glass while it is closing if it receives vibration when the vehicle is crossing railroad tracks, driving on a bumpy road, or when the door is opened/closed.)

No

Go to the next step.

2

• Inspect door glass closing speed.

• Affix tape to the rear edge of the door glass as shown in the figure for placing marks. (to facilitate seeing the door glass movement)

• Start the engine and idle it (to ensure a stabilized operational voltage).

• Does the door glass hesitate only once while its closing?

Yes

NOTE:

• Marking the door shell or glass run channel so that the position where the speed of the door glass changes can be determined is recommended. The points which should be inspected can be specified by aligning the door glass with the position where the speed changed.

Mark the point where the door glass closing speed changed, then go to Step 4.

No

Go to the next step.

3

• Reinspect door glass closing speed.

• Does the door glass hesitate periodically while it is closing?

Yes

Replace the power window motor, then go to Step 9.

(See POWER WINDOW REGULATOR DISASSEMBLY/ASSEMBLY.)

No

Go to Step 9.

4

• Inspect glass run channel and door glass sliding surface.

• Visually inspect the sliding surface of the glass run channel and door glass.

• Is there foreign matter penetration or roughness on the sliding surface (rubber surface)?

Yes

If there is foreign matter penetration

• Remove the foreign matter.

Roughness on the sliding surface (rubber surface):

• Replace the glass run channel.

After performing one of the above actions, reinspect.

If the malfunction has not been resolved, repeat the inspection from Step 2.

No

Go to the next step.

5

• Inspect the sliding surface of the weatherstrip, front beltline molding, and door glass.

• Is there foreign matter penetration or roughness on the sliding surface (rubber surface)?

Yes

If there is foreign matter penetration

• Remove the foreign matter.

Roughness on the sliding surface (rubber surface):

• Replace the weatherstrip or front beltline molding.

After performing one of the above actions, reinspect.

If the malfunction has not been resolved, repeat the inspection from Step 2.

No

Go to the next step.

6

• Inspect tightening of door glass to carrier plate.

• Is it normal?

Yes

Go to the next step.

No

After tightening correctly, reinspect.

If the malfunction has not been resolved, repeat the inspection from Step 2.

7

• Inspect condition of glass run channel and door glass.

• Is it normal?

Yes

Go to the next step.

No

Assemble the glass run channel and door glass securely, and reinspect.

If the malfunction has not been resolved, repeat the inspection from Step 2.

8

• Inspect condition of weatherstrip and front beltline molding.

• Is it normal?

Yes

Go to the next step.

No

Assemble the weatherstrip and front beltline molding, and reinspect.

If the malfunction has not been resolved, repeat the inspection from Step 2.

9

• Inspect door glass closing speed.

• Does the door glass hesitate at any location?

Yes

Repeat the inspection from Step 2.

No

Troubleshooting completed.