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:

Installation
INSTALLATION PROCEDURE 1. INSTALL ROOF HEADLINING ASSEMBLY (w/o Sliding Roof) (a) Pull the roof headlining assembly into the vehicle through the back door. NOTICE: Do not damage the roof headlining assembly or body interior. ...

Removal
REMOVAL PROCEDURE 1. REMOVE AIR CONDITIONING UNIT ASSEMBLY (See page ) 2. REMOVE NO. 1 FINISH PANEL MOUNTING BRACKET 3. REMOVE NO. 2 FINISH PANEL MOUNTING BRACKET 4. REMOVE NO. 3 AIR DUCT SUB-ASSEMBLY 5. REMOVE NO. 2 AIR DUCT SUB-ASSEMBLY ...

Precaution
PRECAUTION NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Power back door system ...