INSPECTION PROCEDURE D-5: The window glass lowers automatically while it is rising.


COMMENTS ON TROUBLE SYMPTOM
If the sliding resistance is too great when the window is being raised or the window glass encounters an object, the window glass will lower by approximately 150 mm.

POSSIBLE CAUSES

  • Improper adjusted door window glass
  • Incorrectly installed or warped glass slider
  • Malfunction of the power window motor
  • Malfunction of the window regulator

DIAGNOSIS PROCEDURE

Step 1. Check the power window operating current.
Check that the power window operating current is normal (Refer to GROUP 42 - Door - On-vehicle Service ).

Q. Is the check result normal?
Adjust the door window glass (Refer to GROUP 42 - Door - On-vehicle service ), and then go to Step 2.
Replace the defective power window motor assembly which operating current are abnormal.

Step 2. Check that the door window glasses are installed correctly.
Check that the door window glasses are installed correctly. Refer to GROUP 42 - Door - On-vehicle Service .

Q. Is the check result normal?
Go to Step 3.
Adjust the door window glass (Refer to GROUP 42 - Door - On-vehicle service ).

Step 3. Retest the system.
Check that the power window does not lower automatically while it is being raised.

Q. Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
Replace the power window motor assembly of the defective window.