Inspection Procedure 1: The Hazard Warning Lamps do not Illuminate.



caution Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.


COMMENTS ON TROUBLE SYMPTOM




PROBABLE CAUSES



  • Malfunction of centre panel unit
  • Malfunction of the ETACS-ECU
  • 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 data list




  • Turn ON the hazard lamp switch.
Item No.
Item name
Normal condition
Item 265
Hazard switch
ON
OK: Normal condition is displayed.

Q. Is the check result normal?





STEP 3. Retest the system



Q. Is the check result normal?