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
.gif)
). 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 | .gif) |
PERFORM CUSTOMIZE SETTING (Proceed to Customize Parameters) |
|
.gif)
|
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) |
Open in Front Passenger Side Electrical Antenna Circuit (B27A2)
DESCRIPTION
The certification ECU (smart key ECU assembly) generates a request signal and
sends it to the door electrical key oscillator built into the front door outside
handle assembly (for fro ...
All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate
DESCRIPTION
When the entry door lock and unlock functions and wireless door lock and unlock
functions do not operate, radio wave interference, or a malfunction in the key or
signal circuit betwee ...
Other materials about Toyota Venza:
Wireless Door Lock Buzzer
Components
COMPONENTS
ILLUSTRATION
Installation
INSTALLATION
PROCEDURE
1. INSTALL WIRELESS DOOR LOCK BUZZER
(a) Engage the clamp and install the wireless door lock buzzer.
(b) Connect the ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (w/o Smart Key System)
(a) Measure the voltage according to the value(s) in the table below.
Text in Illustration
*1
Component with harness c ...
Cellular Phone Registration Failure
PROCEDURE
1.
CHECK USAGE CONDITION
(a) Check that the vehicle and cellular phone meet the following conditions:
NOTICE:
If changing cellular phone settings, updating software, etc. is necessary, make
sure to obtain the per ...
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