Code No.12 Encrypted codes 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 encrypted code.

Q. Was the encrypted code registered?

	The procedure is complete.

	Replace the immobilizer-ECU and register the encrypted code. (Refer to .)