THEFT DETERRENT / KEYLESS ENTRY IMMOBILISER SYSTEM(w/ Smart Entry and Start System) B279C Theft Deterrent System Presence Detection | Toyota Corolla/Altis NZE17/ZRE17 2017 Service Manual

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 the immobiliser system is installed (1-trip detection logic*).	ECM	DTC output confirmation operation: Check for DTCs.

*: Only detected while a malfunction is present.

Vehicle Condition and Fail-safe Function when Malfunction Detected
Vehicle Condition when Malfunction Detected	Fail-safe Function when Malfunction Detected
Engine cannot be started	-

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

NOTICE:: ·

When using the GTS with the engine switch off, connect the GTS to the DLC3 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 Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). 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.

·

Before replacing the ECM, refer to Service Bulletin.

·

After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

1.CLEAR DTC

a.

Clear the DTCs.

Result:

Proceed to
NEXT

2.CHECK FOR DTC

a.

Perform "DTC Output Confirmation Operation" procedure.

b.

Check for DTCs.

Result:

Result	Proceed to
DTC B279C is not output	A
DTC B279C is output	B

A

USE SIMULATION METHOD TO CHECK

B

3.REPLACE ECM

a.

Temporarily replace the ECM with a new one.

Result:

Proceed to
NEXT