Toyota Venza: Problem Symptoms Table

Toyota Venza Service Manual / Networking / Can Communication 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.

Result of CAN No. 1 Bus Check

Symptom	Suspected Area	See page
Open in CAN Main Bus Line.	CAN Main Bus Line
Short in CAN Bus Lines.	CAN Bus Lines
Short to +B in CAN Bus Line.	CAN Bus Line
Short to GND in CAN Bus Line.	CAN Bus Line
Open in One Side of CAN Branch Line.	CAN Branch Line

HINT:

Refer to the How to Proceed with Troubleshooting for the CAN No. 1 Bus Check procedure.

Communication Stop Mode Table

Symptom	Suspected Area	See page
"ABS/VSC/TRAC" is not displayed on the Techstream.	Skid Control ECU Communication Stop Mode
"Air Conditioner" is not displayed on the Techstream.	Air Conditioning Amplifier Communication Stop Mode
"EPS" is not displayed on the Techstream.	Power Steering ECU Communication Stop Mode
"Steering Angle Sensor" is not displayed on the Techstream.	Steering Angle Sensor Communication Stop Mode
"Yaw Rate/Deceleration Sensor" is not displayed on the Techstream.	Yaw Rate Sensor Communication Stop Mode
"Engine" and/or "ECT" is not displayed on the Techstream.	ECM Communication Stop Mode
"Main Body" is not displayed on the Techstream.	Main Body ECU Communication Stop Mode
"Electric Power Control" is not displayed on the Techstream.	Power Management Control ECU Communication Stop Mode
"Combination Meter" is not displayed on the Techstream.	Combination Meter ECU Communication Stop Mode
"Smart Access/Smart Key/Wireless Tuner" is not displayed on the Techstream.	Certification ECU Communication Stop Mode
"SRS Airbag" is not displayed on the Techstream.	Center Airbag Sensor Communication Stop Mode
"Four Wheel Drive Control" is not displayed on the Techstream.	4WD Control ECU Communication Stop Mode
"Navigation System" is not displayed on the Techstream.	Navigation Receiver Assembly Communication Stop Mode
"Navigation System" is not displayed on the Techstream.	Audio Receiver Assembly Communication Stop Mode

System Description

SYSTEM DESCRIPTION 1. BRIEF DESCRIPTION (a) The Control Area Network (CAN) is a serial data communication system for real time application. It is a vehicle multiplex communication system which has ...

Terminals Of Ecu

TERMINALS OF ECU NOTICE: Turn the ignition switch off before measuring the resistances between CAN bus main wires and between CAN bus branch wires. Turn the ignition switch off befor ...

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