Toyota Tacoma (2015-2018) Service Manual: Diagnostic Trouble Code Chart

Toyota Tacoma (2015-2018) Service Manual / Engine Immobiliser / Engine Immobiliser System(w/ Smart Key System) / 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" below.

Certification ECU (Smart Key ECU Assembly)

DTC Code	Detection Item	See page
B2784	Antenna Coil Open / Short
B278A	Short to GND in Immobiliser System Power Source Circuit
B278D	Malfunction of ID-BOX Recognition

ECM

DTC Code	Detection Item	See page
B279986	Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid
B279A12	Engine Immobiliser System Circuit Short to Battery
B279C95	Engine Immobiliser System Incorrect Assembly

Data List / Active Test

DATA LIST / ACTIVE TEST 1. DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when dec ...

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 T ...

Other materials:

Maintenance requirements
To ensure safe and economical driving, day-to-day care and regular maintenance is essential. It is the owner’s responsibility to perform regular checks. Toyota recommends the following maintenance. ■ General maintenance Should be performed on a daily basis. This can be done by yourself ...

Check Bus 2 Line for Short to +B
DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when no resistance exists between terminal 18 (CA4H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 17 (CA4L) of the central gateway ECU (network gateway ECU) and ...

Ignition Switch
Components COMPONENTS ILLUSTRATION Removal REMOVAL PROCEDURE 1. REMOVE LOWER STEERING COLUMN COVER (a) Remove the 2 screws. (b) Disengage the 2 claws and remove the lower steering column cover. 2. REMOVE IGNITION OR STARTER SWITCH ASSEMBLY (a) Disconnect the connector. (b) Disen ...