DTC 12

DTC 12:Encrypted Codes are not the Same or are not Registered

DTC SET CONDITION
The encrypted code sent by the transponder is not the same encrypted code which is registered in the immobilizer-ECU.

NOTE: DTC 12 is always output together with MFI system DTC P0513.

TROUBLESHOOTING HINTS
- The encrypted code in the ignition key has not been properly registered.
- Malfunction of immobilizer-ECU.

DIAGNOSIS PROCEDURE

Was the encrypted code registered?

YES: Replace the immobilizer-ECU and then register the password (secret code) and encrypted code. Retest the system.

NO: Register the encrypted code.