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 switch
  • Malfunction of the sunroof motor assembly
  • Damaged wiring harness and connectors

DIAGNOSIS PROCEDURE


STEP 1. Connector check: D-05 sunroof switch connector


Q. Is the check result normal?





STEP 2. Sunroof switch check



Q. Is the sunroof switch normal?





STEP 3. Connector check: D-06 sunroof motor assembly connector


Q. Is the check result normal?





STEP 4. Check of the wiring harness between the D-05 sunroof switch connector terminal No. 6 and the D-06 sunroof motor assembly connector terminal No. 10



  • Check the input/output line for open circuit.

Q. Is the check result normal?





STEP 5. Retest the system.



Q. Is the check result normal?