Inspection Procedure 3: Selector "P" position-linked door unlock function does not operate normally.



caution Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.





OPERATION




COMMENTS ON TROUBLE SYMPTOM




PROBABLE CAUSES



  • Malfunction of CAN bus line
  • Malfunction of ETACS-ECU
  • Damaged wiring harness and connectors

DIAGNOSIS PROCEDURE


STEP 1. Checking central door unlocking operation



Q. Is the check result normal?





STEP 2. Check the customisation function.




  • Always (P pos)

Q. Is the check result normal?





STEP 3. M.U.T.-III CAN bus diagnostics



Q. Is the CAN bus normal?





STEP 4. Check the M.U.T.-III Diagnosis code of other systems



Q. Is the diagnosis code set?





STEP 5. Retest the system.



Q. Is the check result normal?