Diagnosis Of Immobilizer Faults: Notes

The following table shows the assignment of immobilizer related faults to each type:

DIAGNOSIS PROCEDURE

Immobilizer Related Faults	Fault types	Diagnostic codes
Transponder key fault	Transponder not in password mode. Transponder transport data has been changed.	P1674 (Transponder status error)
Transponder key fault	Corrupted data from transponder More than one transponder in the magnetic field (Antenna coil)	P1675 (Transponder programming error)
SMARTRA fault	Invalid message from SMARTRA to PCM/ECM.	P1676 (SMARTRA message error)
SMARTRA fault	No response from SMARTRA (Communication Line Error - Open or Short etc.)	P1690 (SMARTRA no response)
Antenna coil fault	Antenna coil open/short circuit	P1691 (Antenna coil error)
Immobilizer indicator lamp fault	Immobilizer indicator lamp error (cluster)	P1692 (Immobilizer lamp error)
Transponder key fault	Corrupted data from transponder More than one transponder in the magnetic field (Antenna coil)	P1693 (Transponder no response error/invalid response)