Inspection procedure B-6: 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




  • Electric motor switch (ON)
  • 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. M.U.T.-III diagnosis code.



Q. Is the diagnosis code set?





STEP 2. Hazard warning lamps illumination check



Q. Is the check result normal?





STEP 3. Retest the system.



Q. Is the check result normal?