Toyota Venza: Diagnosis System

Toyota Venza Service Manual / Networking / Lin Communication System / Diagnosis System

DIAGNOSIS SYSTEM

1. DESCRIPTION

The main body ECU (driver side junction block assembly) and certification ECU (smart key ECU assembly) control the LIN communication system. LIN communication system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3).

When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.

2. CHECK DLC3

(a) Check the DLC3 (See page ).

3. INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery.

Terminals Of Ecu

TERMINALS OF ECU 1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) (a) Disconnect the 2A and 2C main body ECU (driver side junction block) connectors. (b) Disconnect the 2F main body ECU ...

Dtc Check / Clear

DTC CHECK / CLEAR 1. CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Smart Key. ...

Other materials about Toyota Venza:

Audio system types
► Vehicles with Display Audio system Type A Type B Refer to the “Display Audio System Owner’s Manual”. ► Vehicles with a navigation system Refer to the “Navigation System Owner’s Manual”. ...

Back Door Closer does not Operate
DESCRIPTION When the back door closer does not operate, one of the following may be the cause: 1) improper fit of the back door, or a foreign object is stuck in the back door or 2) initialization of the power back door ECU (power back door motor unit)*1, ...

Operation Check
OPERATION CHECK 1. NOTICE WHEN CHECKING THE FOLLOWING (a) Power door lock/unlock function: This wireless door lock control function operates only when the following 3 conditions are met: (1) The engine switch is off. (2) All doors are closed. (3) The p ...