CODE NO. L0840 P/W (AS) 3 times jam - protection



caution Before replacing the ECU, ensure that the input and output signal circuits are normal.


COMMENTS ON TROUBLE SYMPTOM




PROBABLE CAUSES



  • Malfunction of the front power window motor (passenger’s side)
  • Malfunction of the front power window sub switch
  • Incorrectly installed or warped glass slider
  • Improper adjusted door window glass
  • Anti-trap function is activated intentionally

DIAGNOSTIC PROCEDURE


STEP 1. Check the power window fully closed position


(1)Carry out the learning procedures of the power window fully closed position. Refer to .
(2)Fully open the front passenger’s door window glass. Operate the front power window sub switch to fully close the front passenger’s door window glass, and check if the front passenger’s door window glass raise without lowering automatically.

Q. Is the check result normal?





STEP 2. Check the door window glass installation



Q. Is the diagnosis code set?





STEP 3. Diagnosis code recheck



(1)Erase the diagnosis code.
(2)Turn the ignition switch from the LOCK (OFF) position to the ON position.
(3)Check if the diagnosis code is set.

Q. Is the diagnosis code set?