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
Malfunction of keyless entry transmitter
Malfunction of ETACS-ECU
Damaged wiring harness and connectors
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."
D/M: O&C.
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 ).