Inspection Procedure 13: The turn-signal indicator lamps do not illuminate.


caution Whenever the ECU is replaced, ensure that the input and output signal circuits 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. Check that the turn-signal lamps operate.



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?