Toyota Venza: Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
The ECU stores trouble codes when malfunctions occur.
The diagnostic system allows for reading of the trouble codes from the DLC3 using the Techstream.
Use the Techstream to help diagnose and repair the problem.
2. CHECK DLC3
(a) Check the DLC3 (See page .gif)
).
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 lis ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the 2A, 2C and 2F main body ECU (driver side junction block assembly)
connectors.
(b) Measure the vo ...
Other materials about Toyota Venza:
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 ...
Precaution
PRECAUTION
1. PRECAUTION FOR VEHICLE WITH SRS AIRBAG AND SEAT BELT PRETENSIONER
(a) Some operations in this section may affect the SRS airbags. Prior to performing
the corresponding operations, read the precautions regarding the SRS airbags (See
page ). ...
System Diagram
SYSTEM DIAGRAM
Input and Output Signal of Each ECU
Transmitting ECU (transmitter)
Receiving ECU
Signal
Communication Method
Power management Control ECU
Steering Lock ECU (Steering Lock ...
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