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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