Inspection Procedure 2: The both headlamp automatic levelling systems (right and left) do not work normally.


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 headlamp automatic levelling-ECU initialization
  • Defective front height sensor assembly <Vehicles for Russia>
  • Malfunction of front height sensor <Vehicles for Russia>
  • Defective rear height sensor assembly
  • Malfunction of rear height sensor <Vehicles for Russia>
  • Malfunction of headlamp automatic levelling-ECU

DIAGNOSIS PROCEDURE


STEP 1. Height sensor installation status check



Q. Is the check result normal?





STEP 2. Retest the system



Q. Is the check result normal?







STEP 3. Front height sensor check <Vehicles for Russia>



(1)Disconnect the rear height sensor connector.
(2)Check that the front height sensor is normal (Refer to ).

Q. Is the check result normal?





STEP 4. Rear height sensor check



Q. Is the check result normal?





STEP 5. Retest the system



Q. Is the check result normal?