Toyota Tacoma (2015-2018) Service Manual: Engine Immobiliser System Incorrect Assembly (B279C95)

Toyota Tacoma (2015-2018) Service Manual / Engine Immobiliser / Engine Immobiliser System(w/ Smart Key System) / Engine Immobiliser System Incorrect Assembly (B279C95)

DESCRIPTION

This code is stored when an ECM that is incompatible with the engine immobiliser system is installed to the vehicle.

DTC Code	DTC Detection Condition	Trouble Area	DTC Output Confirmation Operation
B279C95	An ECM that is incompatible with the engine immobiliser system is installed (1 trip detection logic*).	ECM	Check for DTCs.

*: Only output while a malfunction is present.

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 Code	Data List and Active Test
B279C95	-

PROCEDURE

CLEAR DTC

(a) Clear the DTCs (See page ).

2.	CHECK FOR DTC

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

OK:

DTC B279C95 is not output.

USE SIMULATION METHOD TO CHECK

REPLACE ECM

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART HINT: If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" bel ...

Antenna Coil Open / Short (B2784)

DESCRIPTION When an open or short circuit is detected in the transponder key amplifier coil built into the engine switch, the certification ECU (smart key ECU assembly) stores this DTC. This DTC ...

Other materials:

Pressure Sensor Circuit (B1423)
DESCRIPTION This DTC is stored if refrigerant pressure on the high pressure side is extremely low (176 kPa (1.8 kgf/cm2, 26 psi) or less) or extremely high (3140 kPa (32.0 kgf/cm2, 455 psi) or more). The air conditioner pressure sensor, which is installed on the pipe on the high pressure side ...

System Diagram
SYSTEM DIAGRAM Communication Table Transmitting ECU (Transmitter) Receiving ECU (Receiver) Signal Line Certification ECU (Smart Key ECU Assembly) Main Body ECU (Multiplex Network Body ECU) ...

Replacement
REPLACEMENT PROCEDURE 1. REPLACE AUTOMATIC TRANSMISSION FLUID (a) Lift the vehicle. [*1] NOTICE: Set the vehicle on a lift so that the vehicle is kept level when it is lifted up (make sure that the tilt angle from the front to rear of the vehicle is within +/-1°). (b) Remove th ...