Code No. B1155 EEPROM fail (ESL)
DIAGNOSTIC FUNCTION
When the EEPROM writing/reading error of the electric steering lock is detected, KOS&OSS-ECU sets diagnosis code No.B1155.
JUDGEMENT CRITERIA
Check Conditions
- After KOS&OSS-ECU activation
Judgement Criterion
- When the following conditions are met:
- EEPROM writing/reading error is detected.
PROBABLE CAUSES
- Electric steering lock malfunction
- Malfunction of KOS&OSS-ECU
DIAGNOSIS PROCEDURE
STEP 1. 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 2.
Intermittent malfunction is suspected (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
STEP 2. 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 ).
The diagnosis is complete.