Toyota Venza: Diagnosis System

Toyota Venza Service Manual / Door / Hatch / Back Door Closer System / Diagnosis System

DIAGNOSIS SYSTEM

1. DESCRIPTION

(a) The power back door ECU (power back door motor unit)*1 or back door closer ECU (multiplex network door ECU)*2 controls the vehicle's back door closer system functions. Back door closer system data and Diagnostic Trouble Code (DTC) can be read through the vehicle's Data Link Connector 3 (DLC3).

When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.

*1: w/ Power Back Door System
*2: w/o Power Back Door System

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 POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) (w/ POWER BACK DOOR SYSTEM) (a) Disconnect the L20 power back door ECU connector. (b) Measure the voltage and resistan ...

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 / Back Door / ...

Other materials about Toyota Venza:

Canceling the power back door system (vehicles with power back door)
Turn the main switch to disable the power back door system. 1. Inoperative 2. Operative The back door cannot be operated even with the wireless remote control or power back door switch. A buzzer will sound twice if the power back door switch is pressed ...

Removal
REMOVAL PROCEDURE 1. REMOVE NO. 1 ENGINE UNDER COVER 2. REMOVE NO. 2 ENGINE UNDER COVER 3. REMOVE WINDSHIELD WIPER MOTOR AND LINK (a) Remove the windshield wiper motor and link (See page ). 4. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY 5. DRAIN ENGIN ...

Removal
REMOVAL PROCEDURE 1. REMOVE BRAKE BOOSTER ASSEMBLY HINT: Refer to the instructions for Removal of the brake booster assembly (See page ). 2. REMOVE HEADLIGHT LEVELING ECU ASSEMBLY (w/ HID Headlight System) 3. REMOVE STOP LIGHT SWITCH ASSEMBLY 4. ...