INSPECTION PROCEDURE 2: The Sunroof Lid Glass does not Tilt-up (Tilt-down, Open, 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. 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 UP line between sunroof motor assembly connector 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.


Q. Is the roof lid glass tilted-up.

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

Replace the sunroof motor assembly.