VEHICLE PROXIMITY NOTIFICATION SYSTEM Sound does not Turn OFF when the Vehicle Approaching Speaker Switch is Pressed

DESCRIPTION

When the pattern select switch assembly (vehicle approaching speaker switch) is pushed when the vehicle approaching speaker system is on, the hybrid vehicle control ECU receives a signal to temporarily suspend output of the warning sound from the vehicle approaching speaker assembly.

WIRING DIAGRAM

A003M2PE01
*1 from IG1-NO. 1 Relay
*2 ECU-IG1 NO. 4
*3 Pattern Select Switch Assembly (Vehicle Approaching Speaker Switch)
*4 Hybrid Vehicle Control ECU

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses of circuits related to this system before performing the following procedure.

  • Before replacing the hybrid vehicle control ECU, refer to Service Bulletin.

PROCEDURE


  1. READ VALUE USING GTS (Operation Cancel SW)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Vehicle Proximity Notification System / Data List.

    5. Read the Data List according to the display on the GTS.


      Body Electrical > Vehicle Proximity Notification System > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Operation Cancel SW Pattern select switch assembly (vehicle approaching speaker switch) signal OFF or ON

      OFF: Pattern select switch assembly (vehicle approaching speaker switch) is not pressed

      ON: Pattern select switch assembly (vehicle approaching speaker switch) is pressed

      		 -

      Body Electrical > Vehicle Proximity Notification System > Data List
      Tester Display
      Operation Cancel SW
      Result
      Result Proceed to
      The GTS display changes according to the operation of the vehicle approaching speaker switch A
      The GTS display does not change according to the operation of the vehicle approaching speaker switch B

    A

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    B

  2. INSPECT PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH)


    1. Remove the pattern select switch assembly (vehicle approaching speaker switch).

      Click here

    2. Inspect the pattern select switch assembly (vehicle approaching speaker switch).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH) - IG POWER SOURCE)


    1. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      I47-6 (IG) - Body ground Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (PATTERN SELECT SWITCH ASSEMBLY (VEHICLE APPROACHING SPEAKER SWITCH) - HYBRID VEHICLE CONTROL ECU)


    1. Disconnect the I3 hybrid vehicle control ECU connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I47-14 (ECU) - I3-22 (SW) Always Below 1 Ω
      I47-14 (ECU) or I3-22 (SW) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR