[54A] CHASSIS ELECTRICAL - - IGNITION SWITCH - DIAGNOSTIC TROUBLE CODE PROCEDURES - DTC12: Encrypted Codes are Not identical or not RegisteredPRINT PAGE / INDEX / PRIOR / NEXT
DTC12: Encrypted Codes are Not identical or not Registered
DIAGNOSIS CODE SET CONDITION
The encrypted code sent by the transponder is not the same encrypted code which is registered in the immobilizer-ECU.
NOTE: Diagnosis code 12 is always output together with MPI system diagnosis code 54.
TROUBLESHOOTING HINTS
  • The encrypted code in the ignition key has not been properly registered
  • Malfunction of immobilizer-ECU.
DIAGNOSIS PROCEDURE
Q: Was the encrypted code registered?
YES:  Replace the immobilizer-ECU. and then re-register the encrypted code (Refer to ).
NO:  Register the encrypted code (Refer to ).
[54A] CHASSIS ELECTRICAL - - IGNITION SWITCH - DIAGNOSTIC TROUBLE CODE PROCEDURES - DTC12: Encrypted Codes are Not identical or not RegisteredPRINT PAGE / INDEX / PRIOR / NEXT
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