VEHICLE PROXIMITY NOTIFICATION SYSTEM There is No Sound Made

DESCRIPTION

The hybrid vehicle control ECU controls the vehicle approaching speaker assembly based on received signals.

WIRING DIAGRAM

B006H77E01

CAUTION / NOTICE / HINT

Note


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

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

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.


      Powertrain > Hybrid Control > Trouble Codes

    5. Check for DTCs.

      Result
      Result Proceed to
      Hybrid control system DTCs are not output A
      Hybrid control system DTCs are output B

    B

    GO TO HYBRID CONTROL SYSTEM Click here

    A

  2. 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

    B

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

    A

  3. PERFORM ACTIVE TEST USING GTS (Proximity Sound (Vehicle Stationary))


    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 / Active Test.

    5. Perform the Active Test according to the display on the GTS.


      Body Electrical > Vehicle Proximity Notification System > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Proximity Sound (Vehicle Stationary) Proximity sound (Vehicle stationary) OFF or ON Produces warning sound when vehicle is stopped

      Body Electrical > Vehicle Proximity Notification System > Active Test
      Tester Display
      Proximity Sound (Vehicle Stationary)
      Result
      Result Proceed to
      The warning sound is produced A
      The warning sound is not produced B

    A

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    B

  4. INSPECT VEHICLE APPROACHING SPEAKER ASSEMBLY


    1. Remove the vehicle approaching speaker assembly.

      Click here

    2. Inspect the vehicle approaching speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE VEHICLE APPROACHING SPEAKER ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - VEHICLE APPROACHING SPEAKER ASSEMBLY)


    1. Disconnect the A41 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
      A41-19 (SPK+) - A13-1 (+) Always Below 1 Ω
      A41-9 (SPK-) - A13-2 (-) Always Below 1 Ω
      A41-19 (SPK+) or A13-1 (+) - Body ground Always 10 kΩ or higher
      A41-9 (SPK-) or A13-2 (-) - 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

  6. 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

  7. 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

  8. 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