INSPECTION PROCEDURE A-5: The Sunroof Inhibition Function does not work Normally (The Sunroof Operation Lock Warning Buzzer does not Sound).


caution Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.


COMMENTS ON TROUBLE SYMPTOM



POSSIBLE CAUSES



  • Malfunction of the power window main switch
  • Malfunction of the sunroof motor assembly
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE


STEP 1. Which does not operate normally, the sunroof inhibition or the sunroof operation lock buzzer?


Q. Which does not operate normally, the sunroof inhibition or the sunroof operation lock buzzer?









STEP 2. Check for sunroof diagnosis code.



Q. Is the diagnosis code set?





STEP 3. Check the operation of the sunroof.



Q. Is the check result normal?





STEP 4. Check the power supply circuit.



Q. Is the check result normal?





STEP 5. Confirm the operation of the power windows.



Q. Is the check result normal?





STEP 6. Confirm the operation of the power windows.



Q. Is the check result normal?





STEP 7. Check the operation of the sunroof.



Q. Is the check result normal?





STEP 8. Check the power supply circuit.



Q. Is the check result normal?





STEP 9. M.U.T.-III diagnosis code



Q. Is the diagnosis code set?





STEP 10. Retest the system.



Q. Is the check result normal?