Toyota Tacoma (2015-2018) Service Manual: Problem Symptoms Table

Toyota Tacoma (2015-2018) Service Manual / Engine Immobiliser / Engine Immobiliser System(w/o Smart Key System) / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Engine Immobiliser System (w/o Smart Key System)

Symptom	Suspected Area	See page
Engine does not start because no initial combustion occurs	Proceed to "Engine does not Start because No Initial Combustion"
Engine does not start but initial combustion occurs	Proceed to "Engine does not Start but Initial Combustion Occurs"
Security indicator light does not blink	Proceed to "Security Indicator Light Does not Blink"
Key Cannot be registered	Proceed to "Key Cannot be Registered"

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the engine immobiliser system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP ...

Registration

REGISTRATION PROCEDURE 1. DESCRIPTION OF CODE REGISTRATION (a) w/ Wireless Door Lock Control System: The key has 2 codes: the key code (immobiliser code) and the wireless code. Both of these cod ...

Other materials:

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART HINT: If a trouble code is stored during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to "See page" below. Transponder Key ECU Assembly DTC Code Detection Item See page ...

Installation
INSTALLATION PROCEDURE 1. INSTALL POWER STEERING LINK (a) Insert the power steering link into the vehicle in the order shown in the illustration. Install in this Direction (1) Install in this Direction (2) (b) Temporarily install the po ...

Lost Communication with Power Source Control (B278C)
DESCRIPTION DTC No. DTC Detection Condition Trouble Area B278C An internal malfunction occurs in the certification ECU (smart key ECU assembly) Certification ECU (smart key ECU assembly) CAUTI ...