TTGuideTacoma manuals & technical reference
Toyota Tacoma (2015-2018) Service Manual / Engine Immobiliser / Engine Immobiliser System(w/o Smart Key System) / Theft Deterrent System Presence Detection (B279C,B279C95)

Toyota Tacoma (2015-2018) Service Manual: Theft Deterrent System Presence Detection (B279C,B279C95)

DESCRIPTION

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

DTC No.

DTC Detection Condition

Trouble Area

DTC Output Confirmation Operation

B279C*1

An ECM that is incompatible with engine immobiliser system is installed.

ECM

Check for DTCs.

B279C95*2

An ECM that is incompatible with engine immobiliser system is installed.

ECM

Check for DTCs.
  • *1: for 2TR-FE
  • *2: for 2GR-FKS
Vehicle Condition and Fail-safe Operation when Malfunction Detected

Vehicle Condition when Malfunction Detected

Fail-safe Operation when Malfunction Detected

Engine cannot be started

-
Related Data List and Active Test

DTC No.

Data List and Active Test

B279C*1

-

B279C95*2

-
  • *1: for 2TR-FE
  • *2: for 2GR-FKS

CAUTION / NOTICE / HINT

NOTICE:

  • If the ECM is replaced, refer to Registration (See page After repair, confirm that no DTCs are output by performing "DTC Output ).
  • After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs (See page ).

NEXT

2.

CHECK FOR DTC

(a) Perform "DTC Output Confirmation Operation" procedure.

(b) Check for DTCs (See page OK: ).

OK:

DTC B279C*1 or B279C95*2 is not output.

  • *1: for 2TR-FE
  • *2: for 2GR-FKS
Result

Result

Proceed to

OK

A

NG (for 2TR-FE)

B

NG (for 2GR-FKS)

C
A

USE SIMULATION METHOD TO CHECK

B

REPLACE ECM

C

REPLACE ECM

    Related Tacoma materials

    Acceleration Sensor Internal Circuit (C1419,C1435)
    DESCRIPTION The skid control ECU (brake actuator assembly) receives signals from the yaw rate and acceleration sensor (airbag sensor assembly) via the CAN communication system. The airbag sensor assembly has a built-in yaw rate and acceleration sensor and detects the vehicle condition. If t ...

    Components
    COMPONENTS ILLUSTRATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ...

    Removal
    REMOVAL PROCEDURE 1. REMOVE INSTRUMENT PANEL SUB-ASSEMBLY (See page ) 2. REMOVE NO. 3 HEATER TO REGISTER DUCT 3. REMOVE INSTRUMENT PANEL WIRE ASSEMBLY (a) Using a screwdriver with its tip wrapped in protective tape, release the 3 airbag connector locks. Text in Illustr ...