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DTC B1161: VIN mismatch
 
 
caution
  • If DTC U1161 is set, diagnose the CAN bus lines.
  • 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 engine control module on the CAN bus line, OSS-ECU stores 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 engine control module (engine control module has been interchanged between two vehicles, or VIN has not been written after engine control module replacement)
  • Malfunction of OSS-ECU
 
 
DIAGNOSIS
1. Using scan tool (M.U.T.-II1SE), diagnose the CAN bus line.
2. Check the VIN registered in the engine control module and the VIN of the vehicle.
3. Recheck for diagnostic trouble code.