INSPECTION PROCEDURE 16: Multimode Keyless Entry System 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 power windows, sunroof, and electric-folding door mirrors can be activated.

PROBABLE CAUSES

Malfunction of the keyless operation key
Function setting error or no setting with a customisation
Malfunction of ETACS-ECU

DIAGNOSTIC PROCEDURE

STEP 1. Check the keyless entry system operation.

Check that the keyless entry system works normally.

Q. Is the check result normal?

Go to Step 2.

Refer to inspection procedure 13 "keyless entry system does not work

STEP 2. Check the customisation

Use the customisation function to check that the "Multi mode" has been set to other than "Disabled."

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

Go to Step 3.

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

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

Check whether a KOS-related diagnosis code is set.

Q. Is the diagnosis code set?

Refer to

Go to Step 4.

STEP 4. Check of the troubles

Check that the multimode keyless entry system 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.