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:

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. PERFORM SPARK TEST (a) Check for DTCs (See page ). NOTICE: If any DTC is output, perform troubleshooting procedures for that DTC. (b) Remove the ignition coils and spark plugs (See page ). (c) Disconnect ...

Installation
INSTALLATION PROCEDURE 1. INSTALL FRONT DOOR BELT MOULDING (a) Engage the 5 claws to install the front door belt moulding. (b) Install the clip. 2. INSTALL FRONT DOOR GLASS RUN 3. INSTALL FRONT ...

Operation Check
OPERATION CHECK 1. CHECK FUNCTION (a) Check that the key reminder warning buzzer sounds. (1) With the driver side door closed, insert the key into the ignition key cylinder and then make sure that the key is in LOCK or ACC. (2) Check that the buzzer soun ...