B1161

DTC B1161 VIN mismatch

CAUTION:

- When the diagnostic trouble code No.B1161 is set, be sure to diagnose the CAN bus line.
- When replacing the ECU, always check that the communication circuit is normal.

DIAGNOSTIC FUNCTION

When the VIN registered in OSS-ECU is different from the VIN transmitted by ECM on the CAN bus line, OSS-ECU sets the DTC B1161.

DTC SET CONDITION

Check Conditions

- When all the following conditions are met.
1. Power supply mode: ON
2. VIN written in OSS-ECU
Judgment Criterion

- The VIN received via CAN communication is different from the VIN written in OSS-ECU.

TROUBLESHOOTING HINTS

- Malfunction of the CAN bus line
- Writing error of VIN to ECM (ECM has been interchanged between two vehicles, or VIN has not been written after ECM replacement)
- Malfunction of OSS-ECU

DIAGNOSIS

1. Using scan tool MB991958, diagnose the CAN bus line.
2. Check of VIN in ECM
3. OSS-ECU DTC recheck