Code No. B1144 ESL actuation not completed


caution When replacing the ECU, always check that the communication circuit is normal.

DIAGNOSTIC FUNCTION


If the control completion information cannot be received from the electric steering lock via LIN when the electric steering lock is locked/unlocked, KOS&OSS-ECU sets diagnosis code No.B1144. At the same time, KOS&OSS-ECU displays the immobilizer certification system inspection warning to the combination meter.

JUDGEMENT CRITERIA


Check Conditions
Judgement Criterion

PROBABLE CAUSES



DIAGNOSIS PROCEDURE


STEP 1. Check of short to earth, short to power supply or open circuit in LIN line between electric steering lock connector and KOS&OSS-ECU connector


Q. Is the check result normal?

Go to Step 2.

Repair the connector(s) or wiring harness.

STEP 2. After performing the locking and unlocking operations of the electric steering lock, recheck the diagnosis code


Q. Is the diagnosis code set?

Replace the electric steering lock and register the chassis number (Refer to ). Then go to Step 3.

Go to Step 3.

STEP 3. Check whether the diagnosis code is set again.


Q. Is the diagnosis code set?

Replace the KOS&OSS-ECU and register the chassis number (Refer to ).

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