Inspection Procedure 12: The Turn-signal Indicator Lamps do not Illuminate.


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 ETACS-ECU
  • Malfunction of combination meter
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE


STEP 1. Turn-signal lamp check



Q. Is the check result normal?





STEP 2. M.U.T.-III CAN bus diagnostics



Q. Is the check result normal?





STEP 3. M.U.T.-III diagnosis code



Q. Is the diagnosis code set?





STEP 4. M.U.T.-III actuator test



Q. Is the check result normal?