CODE NO. L0846 P/W (AS) Parameter read fail
CODE NO. L0850 P/W (AS) Position read fail



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


COMMENTS ON TROUBLE SYMPTOM



  • If the front power window sub switch information signals cannot be read, front power window sub switch sets the diagnostic trouble code No. L0846.
  • If the front passenger’s side door window glass position cannot be read, front power window sub switch sets the diagnostic trouble code No. L0850.

PROBABLE CAUSES



  • Malfunction of the front power window sub switch

DIAGNOSTIC PROCEDURE


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?