Toyota Tacoma (2015-2018) Service Manual: How To Troubleshoot Ecu Controlled Systems

Introduction

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General Information

GENERAL INFORMATION A large number of ECU controlled systems are used in the TOYOTA TACOMA. In general, ECU controlled systems are considered to be very intricate, requiring a high lev ...

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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 sy ...

Initialization
INITIALIZATION 1. INITIALIZE POWER WINDOW CONTROL SYSTEM NOTICE: When a door window regulator assembly, power window regulator motor assembly, door glass or door glass run is reinstalled or replaced, the power window control system must be initialized. Functions such as the auto u ...

Open in Driver Side Electrical Antenna Circuit (B27A1)
DESCRIPTION The certification ECU (smart key ECU assembly) generates a request signal and transmits the signal to the front door outside handle assembly LH [electrical key antenna] at intervals of 0.25 seconds. For the front door outside handle assembly LH [electrical key antenna] to detect w ...