IMMOBILISER SYSTEM(w/o Entry and Start System), Diagnostic DTC:B279C

DTC Code	DTC Name
B279C	Theft Deterrent System Presence Detection

DESCRIPTION

If an ECM that is incompatible with the immobiliser system is installed, the ECM stores this DTC.


DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B279C	Theft Deterrent System Presence Detection	An ECM that is incompatible with immobiliser system is installed.	ECM	DTC Output Confirmation Operation: Check for DTCs.

Table 1. Vehicle Condition and Fail-safe Operation when Malfunction Detected
Vehicle Condition when Malfunction Detected	Fail-safe Operation when Malfunction Detected
Engine cannot be started	-

Table 2. Related Data List and Active Test
DTC No.	Data List and Active Test
B279C	-

CAUTION / NOTICE / HINT

Note:

If the ECM is replaced, refer to the Service Bulletin.
After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
When using the GTS with the vehicle ignition switch off, connect the GTS to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Immobiliser. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

PROCEDURE

CLEAR DTC

Result


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Result