Toyota Tacoma manuals

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

Theft Deterrent System Communication Line High Fixation (B279A,B279A12)
DESCRIPTION If the communication line (EFIO-IMI) to the transponder key ECU assembly is stuck high (e.g. shorted to +B), the ECM stores this DTC. DTC No. DTC Detection Condit ...

Engine Immobiliser System Malfunction (B2799,B279986)
DESCRIPTION This DTC is stored when one of the following occurs: 1) the ECM detects errors in its own communication with the transponder key ECU assembly; 2) the ECM detects errors in the communi ...

Other materials:

Air Conditioning Amplifier
Components COMPONENTS ILLUSTRATION Installation INSTALLATION PROCEDURE 1. INSTALL AIR CONDITIONING AMPLIFIER ASSEMBLY (a) Install the air conditioner amplifier assembly with the 2 bolts. Torque: 7.0 N·m {71 kgf·cm, 62 in·lbf} (b) Connect the 2 connectors. 2. INSTALL INSTRUMENT L ...

ABS Warning Light Remains ON
DESCRIPTION If any of the following is detected, the ABS warning light remains on. The skid control ECU (master cylinder solenoid) connectors are disconnected from the skid control ECU (master cylinder solenoid). There is a malfunction in the skid control ECU (master cylinder soleno ...

Push Switch / Key Unlock Warning Switch Malfunction (B2780)
DESCRIPTION This DTC is stored if the transponder key ECU assembly does not detect that the unlock warning switch assembly is ON even when the key is in the ignition key cylinder. Under normal conditions, the unlock warning switch assembly is ON when the key is in the ignition key cylinder. ...

© 2011-2021 Copyright www.ttguide.net