Toyota Venza manuals

Toyota Venza: Entry Answer-back Buzzer does not Sound

DESCRIPTION

The smart key system uses the wireless door lock buzzer to perform various vehicle exterior warnings. When the conditions for each warning are met, the certification ECU (smart key ECU assembly) sends a buzzer request signal to the main body ECU (driver side junction block assembly) via CAN communication. The wireless door lock assembly sounds the buzzer according to the signal from the main body ECU.

CAUTION / NOTICE / HINT

NOTICE:

The smart key system (for entry function) uses a multiplex communication system (LIN communication system) and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting (See page ). Troubleshoot the smart key system (for entry
function) after confirming that the communication system is functioning properly.

PROCEDURE

1.

READ VALUE USING TECHSTREAM (ANSWER-BACK BUZZER FUNCTION)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Data List.

(e) Read the Data List according to the display on the Techstream.

Main Body (Main Body ECU (Driver Side Junction Block Assembly))

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Wireless Buzzer Resp

Answer-back buzzer operation / ON or OFF

Customization status displayed

-

Result

Proceed to

Customize setting is ON.

A

Customize setting is OFF.

B


B

PERFORM CUSTOMIZE SETTING (Proceed to Customize Parameters)


A

2.

PERFORM ACTIVE TEST USING TECHSTREAM

(a) Enter the following menus: Body Electrical / Main Body / Active Test.

(b) Perform the Active Test according to the display on the Techstream.

Main Body (Main Body ECU (Driver Side Junction Block Assembly))

Tester Display

Test Part

Control Range

Diagnostic Note

Wireless Buzzer

Turns the wireless door lock buzzer

ON/OFF

-

OK:

Wireless door lock buzzer sounds.


OK

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


NG

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (Proceed to No Answer-Back)

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