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:

Clearance Warning ECU Power Source Circuit
DESCRIPTION This circuit provides power to operate the clearance warning ECU assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuse for circuits related to this system before performing the following inspection procedure. PROCEDURE 1. CHECK HARNES ...

Using the radio
Select “AM” or “FM” on the “Select Audio Source” screen to begin listening to the radio. Audio control screen   “Select Audio Source” screen appears   Preset stations   Select to display RBDS text message   Scanning for receivable station   Sele ...

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE FRONT LOWER ARM BUSH NO. 1 (a) Using a hammer and chisel, raise the flange of the bush diagonally as shown in the illustration. (b) Using SST, remove the lower arm bush. SST: 09950-40011 09951-04010 09952-04010 09953-04020 09954-04010 ...

© 2011-2021 Copyright www.ttguide.net