IMMOBILIZER SYSTEM DESCRIPTION [WITHOUT ADVANCED KEYLESS SYSTEM]

Verification Method Between Key (Transponder) and PCM

On-Board Diagnostic Function

Self-malfunction diagnosis system

• If the immobilizer system has a malfunction, the security light starts flashing and indicates a fault code when the ignition switch is turned to the ON position. In this case, check the DTC using the SST (WDS) to verify the malfunction.

DTC table

DTC			Description
Security light	Security light flashing pattern	WDS
11		B1681	coil antenna signal is not received.
12		B2103	coil antenna failure.
13		B1600	ID number signal is not received.
		B2431	Transponder programming failure.
14		B1602	PCM received invalid format of ID number from transponder.
15		B1601	PCM received incorrect ID number from key (transponder).
21		B1213	Number of valid keys is below minimum.
Not illuminated	-	B1342	PCM is defective.

PID/data monitor and record

• The PID/data monitoring item for the immobilizer system is shown in the table below.

PID/data monitor table

PID name (Description)	Unit	Specification	PCM terminal
NUMKEYS (Number of key stored in module)	-	Number of registered keys: 0-8	-