Inspection Procedure 4: Multimode keyless entry system function does not work at all <Vehicles with electric retractable remote controlled door mirrors>.



caution Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.


COMMENTS ON TROUBLE SYMPTOM


If the electric-folding door mirrors work normally, ETACS-ECU may be faulty. Also, the door mirror operation setting is configured for other than the folding/unfolding interlocked with the keyless entry operation, using the customisation function.

PROBABLE CAUSES




DIAGNOSIS PROCEDURE


STEP 1. Confirm the transmitter.


Check that the keyless entry system works normally.

Q. Is the check result normal?

Go to Step 2.

Refer to trouble symptom chart .

STEP 2. Check the operation of the electric-folding door mirror.


Check that the electric folding door mirrors work normally.

Q. Is the check result normal?

Go to Step 3.

Refer to GROUP 51 - Troubleshooting .

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


Check if any diagnosis code is set to the keyless entry system.

Q. Is the diagnosis code set?

Refer to diagnosis code chart .

Go to Step 4.

STEP 4. Check the customisation function.


Use the customisation function to check that the "Multi mode" has been set to one of the followings, not "Disabled."

Q. Is the check result normal?

Go to Step 5.

Use the customisation function to set the "Multi mode" to one of the above, not "Disabled" (Refer to ).

STEP 5. Check of the troubles


Check that the multimode keyless entry system works normally.

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