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.


Malfunctions of the sunroof motor assembly and/or sunroof switch are suspected.



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

Check that any sunroof operation-related diagnosis codes are set in ETACS-ECU.

Q. Is the diagnosis code set?

Refer to diagnosis code chart .

Go to Step 2.

STEP 2. Sunroof switch check

Refer to sunroof switch check .

Q. Is the sunroof switch normal?

Go to Step 3.

Replace the sunroof switch.

STEP 3. Check of open circuit in CLOS line between sunroof motor assembly and sunroof switch connector.

Q. Is the check result normal?

Go to Step 4.

Repair the connector(s) or wiring harness.

STEP 4. Retest the system.

Check that the roof lid glass tilts down or closes.

Q. Is the check result normal?

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).

Replace the sunroof motor assembly.