INSPECTION PROCEDURE C-4: Front and/or Rear Passenger’s Power Window(s) do not work by means of The Power Window Main Switch.


caution Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.

COMMENTS ON TROUBLE SYMPTOM



PROBABLE CAUSES



  • Malfunction of the power window main switch
  • Malfunction of the power window sub switch
  • Damaged wiring harness and connectors

DIAGNOSTIC PROCEDURE


STEP 1. Check the power window main switch.



Q. Is the check result normal?





STEP 2. Check the power window sub switch.



Q. Is the check result normal?





STEP 3. Check the power supply system.




  • Hazard warning lamp

Q. Is the check result normal?





STEP 4. M.U.T.-III diagnosis code



Q. Is the diagnosis code set?





STEP 5. Retest the system.



Q. Is the check result normal?