If incorrect vehicle information data is received, KOS-ECU sets the diagnosis code No.
U1417.
JUDGEMENT CRITERIA
If incorrect global coding data is received with the ignition switch turned ON when the
coding confirmation is completed, KOS-ECU determines that there is a problem.
PROBABLE CAUSES
Malfunction of KOS-ECU
Malfunction of ETACS-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III other system diagnosis code
Check if the ETACS-ECU-related diagnosis code is set.
Q.
Is the diagnosis code set?
Perform troubleshooting for ETACS-ECU (Refer to GROUP 54A -
ETACS -
Troubleshooting ).
Go to Step 2.
STEP 2. Check whether the diagnosis code is reset.
Recheck if the diagnosis code is set.
(1)Turn the ignition switch from the LOCK (OFF) position to the ON position.
(2)Check if the diagnosis code is set.
Q.
Is the diagnosis code set?
Check if the coding data is sent for the vehicles with immobilizer function on
"non-adaptable" condition. If so, change the immobilizer function into "adaptable", and then
go to Step 3.
Intermittent malfunction is suspected (Refer to GROUP 00 -
How to Use Troubleshooting/Inspection
Service Points -
How to Deal with Intermittent Malfunction ).
STEP 3. Check whether the diagnosis code is reset.
Recheck if the diagnosis code is set.
(1)Turn the ignition switch from the LOCK (OFF) position to the ON position.
(2)Check if the diagnosis code is set.
Q.
Is the diagnosis code set?
Replace KOS-ECU and register the ID codes (Refer to ).
Perform troubleshooting for ETACS-ECU (Refer to GROUP 54A -
ETACS -
Troubleshooting 
Go to Step 2.