Toyota Venza: 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 this vehicle. In general, ECU controlled systems are considered to be very intricate, requiring a high level of ...

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Installation
INSTALLATION PROCEDURE 1. INSTALL UNLOCK WARNING SWITCH (a) Engage the 2 claws and install the unlock warning switch to the steering column upper bracket. (b) Extract the key. (c) Co ...

Removal
REMOVAL PROCEDURE 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system (See page ). NOTICE: When disconnecting the cable, s ...

Taillight Relay Circuit
DESCRIPTION The main body ECU (driver side junction block assembly) controls the operation of the TAIL relay. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following inspec ...