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:

Chassis
General Maintenance GENERAL MAINTENANCE PROCEDURE 1. INSPECT STEERING LINKAGE (a) Check the steering wheel free play (See page ). (b) Check the steering linkage for looseness or damage. (1) Check that the tie rod ends do not have excessive play. (2) Check that the dust seals and boots are ...

Vehicle Speed Sensor "A" No Signal (P050031)
DESCRIPTION Vehicles, which are equipped with ABS (Anti-lock Brake System), detect the vehicle speed using the skid control ECU (brake actuator assembly) and speed sensors. Each speed sensor monitors the wheel rotation speed and sends a signal to the skid control ECU. The skid control ECU con ...

Inspection
INSPECTION PROCEDURE 1. INSPECT FRONT SUSPENSION LOWER ARM (a) Flip the ball joint stud back and forth 5 times, as shown in the illustration, before installing the nut. (b) Using a torque wrench, turn the nut continuously at a rate of 2 to 4 seconds per turn and take the torque reading on ...