Inspection Procedure 5: The position lamp indicator lamp or the high-beam indicator lamp does not illuminate.


caution Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM


If the position lamp indicator lamp or the high-beam indicator lamp does not illuminate normally, the harness in the CAN bus lines, connector(s), ETACS-ECU, or combination meter may have a problem.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


STEP 1. Check the headlamp.


Check that the headlamps illuminate and go out normally when the lighting switch is operated.

Q. Is the check result normal?

Go to Step 2.

Repair the headlamps. Refer to .

STEP 2. M.U.T.-III CAN bus diagnostics


Use the M.U.T.-III to diagnose the CAN bus lines.

Q. Is the check result normal?

Go to Step 3.

Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).

STEP 3. M.U.T.-III diagnosis code.


When the electric motor switch is turned to the "LOCK" (OFF) position, check that the ETACS-ECU does not set the diagnosis code.

Q. Is the diagnosis code set?

Refer to diagnosis code chart .

Go to Step 4.

STEP 4. M.U.T.-III actuator test for other systems


Perform the actuator test for the combination meter, and check that the position lamp indicator lamp and the high-beam indictor lamp illuminate. Refer to .

Q. Is the check result normal?

Replace the ETACS-ECU and register the ID codes (Refer to ).

Replace the combination meter.





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