VEHICLE PROXIMITY NOTIFICATION SYSTEM The Sound does not Stop when The Engine is Operated or when The Shift Lever is in P

DESCRIPTION

The vehicle approaching speaker controller receives "permission signals*" from hybrid vehicle control ECU assembly, and produces the warning sound from the vehicle approaching speaker assembly.

Tech Tips

*: Permission signals


  • Vehicle proximity notification system operation permitted (engine is stopped and shift lever is not in P).

  • Vehicle proximity notification system operation prohibited (engine is operating or shift lever is in P).

WIRING DIAGRAM

A0021YVE08
*1 KOK
*2 Vehicle Approaching Speaker Controller
*3 Hybrid Vehicle Control ECU Assembly

PROCEDURE


  1. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Powertrain > Hybrid Control > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO HYBRID CONTROL SYSTEM Click here

    A

  2. READ VALUE USING GTS (Permission Signal)


    1. Connect the GTS 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
      Permission Signal Vehicle proximity notification system permission signal OFF or ON

      OFF: Vehicle proximity notification system operation prohibited (engine is operating or shift lever is in P)

      ON: Vehicle proximity notification system operation permitted (engine is stopped and shift lever is not in P)

      		 -

      Body Electrical > Vehicle Proximity Notification System > Data List
      Tester Display
      Permission Signal
      Result
      Result Proceed to
      The GTS display changes according to the engine status or the shift lever position A
      The GTS display does not change according to the engine status or the shift lever position B

    A

    REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER Click here

    B

  3. CHECK VEHICLE APPROACHING SPEAKER CONTROLLER (PERMISSION SIGNAL)

    A0022IQC45
    *a

    Component with harness connected

    (Vehicle Approaching Speaker Controller)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      K145-11 (KOK) - Body ground Power switch on (READY), shift lever in P Below 2.3 V
      Power switch on (READY), engine stopped and shift lever not in P 8 V or higher
      Result
      Result
      OK
      NG

    OK

    REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER Click here

    NG

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


    1. Disconnect the K145 vehicle approaching speaker controller connector.

    2. Disconnect the K141 hybrid vehicle control ECU assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K145-11 (KOK) - K141-7 (KOK) Always Below 1 Ω
      K145-11 (KOK) or K141-7 (KOK) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER


    1. Replace the vehicle approaching speaker controller with a new or known good one.

      Click here

      OK
      The operation of the vehicle proximity notification system returns to normal.
      Result
      Proceed to
      OK
      NG

    OK

    END (VEHICLE APPROACHING SPEAKER CONTROLLER WAS DEFECTIVE)

    NG

    REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY Click here