INSPECTION PROCEDURE 4: The Sunroof Lid Glass does not Tilt-down or Close (Tilt-up and Open 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 the sunroof motor assembly
  • Malfunction of the sunroof switch
  • Damaged wiring harness and connectors

DIAGNOSTIC PROCEDURE


STEP 1. M.U.T.-III diagnosis code



Q. Is the diagnosis code set?





STEP 2. Connector check: D-03 sunroof switch connector


Q. Is the check result normal?





STEP 3. Sunroof switch check



Q. Is the sunroof switch normal?





STEP 4. Connector check: D-04 sunroof motor assembly connector


Q. Is the check result normal?





STEP 5. Check of the wiring harness between the D-03 sunroof switch connector terminal No. 6 and the D-04 sunroof motor assembly connector terminal No. 10



  • Check the input/output line for open circuit.

Q. Is the check result normal?





STEP 6. Retest the system.



Q. Is the check result normal?