Inspection Procedure 14: Multimode keyless entry function does not work at all.


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

OPERATION


With a ETACS customisation function, using the keyless operation key, the electric-folding door mirrors <Vehicles with electric retractable remote controlled door mirrors> can be activated.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


STEP 1. Check the keyless entry function operation.


Check that the keyless entry system works normally.

Q. Is the check result normal?

Go to Step 2.

Refer to inspection procedure 11 "keyless entry function does not work ."

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. Check the customisation


Use the customisation function to check that the "Multi mode" has been set to other than "Disabled."
Vehicles with electric retractable remote controlled door mirrors

Q. Is it set to other than "disabled"?

Go to Step 4.

Use the customisation function to set the "Multi mode" to other than "Disabled" (Refer to ).

STEP 4. M.U.T.-III diagnosis code


Check if any diagnosis code is set to the KOS-ECU.

Q. Is the diagnosis code set?

Refer to diagnosis code chart .

Go to Step 5.

STEP 5. Check of the troubles


Check that the multimode keyless entry function works normally.

Q. Is the check result normal?

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

Replace ETACS-ECU. After the replacement, perform the coding.