Immobilizer System Status Log

If you suspect there is an immobilizer system problem, check the status log in the HDS.

1. Connect the HDS to the data link connector (DLC)

2. Turn the vehicle to the ON mode.

3. On the HDS screen, at SYSTEM SELECTION MENU, enter IMMOBI, then select IMMOBILIZER SETUP, select SYSTEM CHECK, NUMBER of KEYS and STATUS LOG, then select STATUS LOG.Check the STATUS LOG count. Troubleshoot the status with the highest count first. If no counts are listed, the immobilizer system is OK. Continue with normal symptom troubleshooting.

Status Log No.	Detected Item	Probable Cause
A-1	KEY CODE MISMATCH 1(Code format correct, but code data does not match)	The key was not registered Interference from metal such as key chains Low 12 volt battery voltage
A-2	KEY CODE MISMATCH 2(Incorrect code format)	The vehicle was turned to ON mode with another type of immobilizer key or aftermarket key Interference from metal such as key chains Low 12 volt battery voltage
A-3	KEY CODE MISMATCH 3(No transponder detected)	The vehicle was turned to ON mode with another type of immobilizer key or aftermarket key Interference from metal such as key chains Low 12 volt battery voltage Key failure Immobilizer-keyless control unit failure
B-1	PCM CODE MISMATCH 1(Code format correct, but code data does not match)	PCM was not registered correctly Low 12 volt battery voltage Poor or loose terminal connections at the immobilizer-keyless control unit Communication line electrical noise
B-2	PCM MISMATCH 2(Incorrect code format)	PCM was not registered correctly Low 12 volt battery voltage Poor or loose terminal connections at the immobilizer-keyless control unit Communication line electrical noise
C-1	IMOES UNIT MISMATCH 1(Code format correct, but data does not match)	Imoes unit was not registered correctly Communication was not good between the imoes unit and the immobilizer-keyless control unit because of low 12 volt battery voltage Communication was not good between the imoes unit and the immobilizer-keyless control unit because of electrical noise
C-2	IMOES UNIT MISMATCH 2(Incorrect code format)	Imoes unit was not registered correctly Communication was not good between the imoes unit and the immobilizer-keyless control unit because of low 12 volt battery voltage Communication was not good between the imoes unit and the immobilizer-keyless control unit because of electrical noise

Status Log No.	Detected Item	Probable Cause
D-1	S-NET LINE PROBLEM 1(Short to ground)	Low 12 volt battery voltage Poor or loose terminal connections at the immobilizer-keyless control unit and the PCM Communication line electrical noise
D-2	S-NET LINE PROBLEM 2(No communication)	Blown fuse Harness open from imoes unit to immobilizer-keyless control unit Communication was not good between the imoes unit and the immobilizer-keyless control unit because of low 12 volt battery voltage Communication was not good between the imoes unit and the immobilizer-keyless control unit because of electrical interference Imoes unit failure Immobilizer-keyless control unit failure
D-3	S-NET LINE PROBLEM 3(Open line or PCM failure)	Open or short in the harness from the PCM to the immobilizer-keyless control unit Low 12 volt battery voltage Poor or loose terminal connections at the immobilizer-keyless control unit and the PCM Poor S-NET data communication due to electrical interference