ENTRY AND START SYSTEM (for Entry Function) > Entry Answer-back Buzzer does not Sound

for Preparation Click here


DESCRIPTION

The entry and start system uses the wireless door lock buzzer assembly 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 (multiplex network body ECU) via CAN communication. The wireless door lock assembly sounds the buzzer according to the signal from the main body ECU (multiplex network body ECU).

INSPECTION PROCEDURE

NOTICE:
  1. The entry and start system (for Entry Function) uses a multiplex communication system (LIN communication system) and the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting (Click here). Troubleshoot the entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.
  2. When using the intelligent tester with the power switch off to troubleshoot:
    Connect the intelligent tester to the DLC3 and turn a courtesy light switch on and off at 1.5-second intervals until communication between the intelligent tester and vehicle begins.
  3. Check that there are no electrical key transmitters in the vehicle.
  4. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output (Click here).
  5. Before replacing the certification ECU (smart key ECU assembly), refer to the entry and start system (for Entry Function) (Click here).

1.READ VALUE USING INTELLIGENT TESTER (ANSWER-BACK BUZZER FUNCTION)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter the following menus: Utility / Customize / Wireless Door Lock.

  1. Select the setting by referring to the table below.

    Main Body 
    Display
    		Default
    		Content
    		Setting
    		Relevant ECU
    Wireless Buzzer Resp
    		ON
    		Function that buzzer answer back when entry lock or unlock operation is performed.
    		ON or OFF
    		Main body ECU (Multiplex network body ECU)

    Result:
    Result
    		Proceed to
    Customize setting is ON.
    		A
    Customize setting is OFF.
    		B



B
PERFORM CUSTOMIZE SETTING (Proceed to Customize Parameters) (Click here)
A


2.PERFORM ACTIVE TEST USING INTELLIGENT TESTER

  1. Enter the following menus: Body / Main Body / Active Test.

  1. Perform the Active Test according to the display on the intelligent tester.

    Main Body 
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Wireless Buzzer
    		Wireless door lock buzzer assembly
    		ON/OFF
    		-

    OK:
    Wireless door lock buzzer sounds.



NG
GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (Proceed to No Answer-Back) (Click here)
OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)