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:

Reassembly
REASSEMBLY PROCEDURE 1. INSTALL REAR CONSOLE ARMREST ASSEMBLY (a) Temporarily install the rear console armrest assembly. (b) Push in the box door hinge shafts by hand as far as possible. HINT: The illustration is for the LH sid ...

Dinghy towing
Your vehicle is not designed to be dinghy towed (with four wheels on the ground) behind a motor home. NOTICE - To avoid serious damage to your vehicle Do not tow your vehicle with four wheels on the ground. - To prevent causing serious dama ...

Headlight Beam Level Control Actuator Circuit
DESCRIPTION The headlight leveling ECU assembly actuates the headlight leveling motor according to vehicle conditions. WIRING DIAGRAM PROCEDURE 1. READ VALUE USING TECHSTREAM (a) Connect the Techstream to the DLC3. (b) ...