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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Removal
REMOVAL PROCEDURE 1. PRECAUTION (See page ) 2. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD 3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disab ...

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 ...

Removal
REMOVAL PROCEDURE 1. DISCHARGE FUEL SYSTEM PRESSURE HINT: (See page ). 2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page ). 3. REMOV ...