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:

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE NO. 1 ULTRASONIC SENSOR (w/ Intuitive Parking Assist System) 2. REMOVE NO. 2 ULTRASONIC SENSOR RETAINER (w/ Intuitive Parking Assist System) 3. REMOVE FRONT LICENSE PLATE BRACKET (a) Remove the 2 screws and ...

Removal
REMOVAL PROCEDURE 1. REMOVE FRONT WIPER ARM HEAD CAP (a) Using a screwdriver, remove the 2 front wiper arm head caps as shown in the illustration. Text in Illustration *1 Protective Tape ...

Front seats
► Power seat 1. Seat position fore/aft control switch 2. Seatback angle control switch 3. Seat cushion (front) angle control switch (driver’s side only) 4. Vertical height control switch (driver’s side only) 5. Lumbar support control switch & ...