Code No.24 Pitch Angle Abnormality


caution Before replacing the ECU, ensure that the communication circuit is normal.










TROUBLE JUDGMENT



COMMENTS ON TROUBLE SYMPTOM



PROBABLE CAUSES



  • Malfunction of the front height sensor
  • Malfunction of the rear height sensor
  • Malfunction of the headlamp automatic levelling-ECU
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE


STEP 1. Connector check: A-54 front height sensor connector


Q. Is the check result normal?





STEP 2. Front height sensor check



Q. Is the check result normal?





STEP 3. Connector check: F-02 rear height sensor connector


Q. Is the check result normal?





STEP 4. Rear height sensor check



Q. Is the check result normal?





STEP 5. Connector check: C-14 headlamp automatic levelling-ECU connector


Q. Is the check result normal?





STEP 6. Check whether the diagnosis code is reset.


Q. Is diagnosis code No. 24 set?