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DTC B1143 ESL status fail
 
 
 
 
DIAGNOSTIC FUNCTION
If a status error is received from the electric steering lock via LIN, OSS-ECU stores the DTC B1143, and displays the immobilizer certification system inspection warning screen to the multi information display of the combination meter.
noteIn addition, when the electric steering lock was replaced, the DTC B1143 may be stored with the electric steering lock locked (a new electric steering lock is in the unlocked status). Therefore, before the DTC recheck of after the replacement of electric steering lock, be sure to perform the locking control of the electric steering lock first.
 
 
DTC SET CONDITION
Check Conditions
  • After OSS-ECU activation
Judgment Criterion
  • Status abnormality is received from the electric steering lock via LIN.
 
 
TROUBLESHOOTING HINT
  • Electric steering lock malfunction
  • Malfunction of OSS-ECU
 
 
DIAGNOSIS
STEP 1. After performing the locking and unlocking operations of the electric steering lock, recheck the diagnostic trouble code.
(1) Erase the DTC.
(2) Turn the power supply mode of the engine switch from OFF to ON.
(3) Check if DTC is stored.
(4) Turn the power supply mode of the engine switch from ON to OFF.
Is the DTC stored?
Replace the electric steering lock and register the VIN (Refer to ). Then go to Step 2.
Go to Step 2.
 
STEP 2. Check whether the diagnostic trouble code is stored again.
(1) Erase the DTC.
(2) Turn the power supply mode of the engine switch from OFF to ON.
(3) Check if DTC is stored.
(4) Turn the power supply mode of the engine switch from ON to OFF.
Is the DTC stored?
Replace the OSS-ECU and register the VIN (Refer to ).
Intermittent malfunction is suspected (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).