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-05 front height sensor connector


Q. Is the check result normal?





STEP 2. Front height sensor check



Q. Is the check result normal?





STEP 3. Check whether the diagnosis code is reset.


Q. Is diagnosis code No. 24 set?





STEP 4. Connector check: D-117 rear height sensor connector


Q. Is the check result normal?





STEP 5. Rear height sensor check



Q. Is the check result normal?





STEP 6. Check whether the diagnosis code is reset.


Q. Is diagnosis code No. 24 set?





STEP 7. Connector check: C-112 headlamp automatic levelling ECU connector


Q. Is the check result normal?





STEP 8. Check whether the diagnosis code is reset.


Q. Is diagnosis code No. 24 set?