Inspection Procedure A-10: The welcome light function does not work normally.


caution Whenever the ECU is replaced, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.

COMMENTS ON TROUBLE SYMPTOM



PROBABLE CAUSES



  • Malfunction of the keyless entry system
  • Malfunction of the ETACS-ECU

DIAGNOSIS PROCEDURE


STEP 1. ETACS-ECU customise function check.




  • Small lamp
  • Head lamp

Q. Is it set to other than "Disabled"?





STEP 2. M.U.T.-III diagnosis code



Q. Is the diagnosis code set?





STEP 3. Check the keyless entry system operation



Q. Is the check result normal?





STEP 4. Check the tail lamps and headlamps.



Q. Is the check result normal?





STEP 5. Retest the system.



Q. Is the check result normal?