Inspection procedure B-2: Turn-signal Lamp Operation Sound Function does not Work Normally.


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


COMMENTS ON TROUBLE SYMPTOM




  • Ignition switch (IG1)
  • Turn-signal lamp switch
  • Hazard warning lamp switch

PROBABLE CAUSES



  • Malfunction of the column switch
  • Malfunction of the hazard warning lamp switch
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE


STEP 1. Check of adjustment details for the turn-signal lamp operation sound function



Q. Is the check result normal?





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



Q. Is the diagnosis code set?





STEP 3. Hazard warning lamps illumination check



Q. Is the check result normal?





STEP 4. Retest the system.



Q. Is the check result normal?