Code No.12 Key
IDs are not the same or are not registered.
DIAGNOSIS CODE SET CONDITIONS
This code is set when the ignition key is not registered with the immobilizer-ECU.
PROBABLE CAUSES
- The ignition key is not registered with the immobilizer-ECU.
- Malfunction of immobilizer-ECU
DIAGNOSIS PROCEDURE
Resister the key ID.
Q.
Was the key ID registered?
The procedure is complete.
Replace the immobilizer-ECU and register the key ID (Refer to 
).