INSPECTION PROCEDURE 3: The Sunroof Lid Glass does not Open (Tilt-up, Tilt-down, And Close 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


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

PROBABLE CAUSES




DIAGNOSTIC PROCEDURE


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. Connector check: D-03 sunroof switch connector


Q. Is the check result normal?

Go to Step 3.

Repair the defective connector.

STEP 3. Sunroof switch check


Refer to sunroof switch check .

Q. Is the sunroof switch normal?

Go to Step 4.

Replace the sunroof switch.

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


Q. Is the check result normal?

Go to Step 5.

Repair the defective connector.

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



Q. Is the check result normal?

Go to Step 6.

Repair the wiring harness.

STEP 6. Retest the system.


Check that the roof lid glass is open.

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.