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:

Inspection
INSPECTION PROCEDURE 1. INSPECT TIRES (a) Inspect the tires for wear and proper inflation pressure. Cold Tire Inflation Pressure: Tire Size Front kPa (kgf/cm2, psi) Rear kPa (kgf/cm2, psi) P245/55R1 ...

Installation
INSTALLATION PROCEDURE 1. INSTALL FUEL LID LOCK CONTROL CABLE SUB-ASSEMBLY (a) Engage the 8 clamps. (b) Engage the 2 claws and connect the fuel lid lock control cable sub-assembly. 2. INSTALL FUE ...

Precaution
PRECAUTION 1. INITIALIZATION NOTICE: Perform the Registration (VIN registration) when replacing the ECM (See page ). HINT: Reset memory or initialization cannot be completed by only disconnecting and reconnecting the cable of the negative (-) battery ...