VEHICLE PROXIMITY NOTIFICATION SYSTEM, Diagnostic DTC:B1350

DTC Code DTC Name
B1350 Speaker Circuit

DESCRIPTION

The vehicle approaching speaker assembly circuit consists of the vehicle approaching speaker controller and vehicle approaching speaker assembly.

This DTC is stored when a malfunction is detected in the vehicle approaching speaker assembly circuit.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B1350

Speaker Circuit

Either of the following conditions is met:

  • When sound output voltage is being monitored by the ECU, with the power switch on (IG), battery voltage 10 V or more, and warning sound being produced, a speaker circuit short condition continues for 1 second or more.

  • When sound output voltage is being monitored by the ECU, with the power switch on (IG) and warning sound not being produced, a speaker circuit open condition continues for 5 seconds or more.

  • Vehicle approaching speaker controller

  • Vehicle approaching speaker assembly

  • Harness or connector

WIRING DIAGRAM

E222828E22

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER CONTROLLER - VEHICLE APPROACHING SPEAKER ASSEMBLY)

    1. Disconnect the N39 vehicle approaching speaker controller connector.

    2. Disconnect the A108 vehicle approaching speaker assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      N39-3 (SP+) - A108-1

      Always

      Below 1 Ω

      N39-8 (SP-) - A108-2

      Always

      Below 1 Ω

      N39-3 (SP+) or A108-1 - Body ground

      Always

      10 kΩ or higher

      N39-8 (SP-) or A108-2 - Body ground

      Always

      10 kΩ or higher

      N39-3 (SP+) - N39-8 (SP-)

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK VEHICLE APPROACHING SPEAKER CONTROLLER

    1. Disconnect the vehicle approaching speaker controller connector.

      C285783C12

      *a

      Front view of wire harness connector

      (to Vehicle Approaching Speaker Assembly)

      -

      -

    2. Connect the GTS to the DLC3.

    3. Turn the power switch on (IG).

    4. Turn the GTS on.

    5. Enter the following menus: Body Electrical / Vehicle Proximity Notification System / Active Test.

    6. 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)

    7. Check the signal waveform according to the condition(s) in the table below.

      Item

      Condition

      Tester Connection

      A101-1 - A101-2

      Tool Setting

      1 V/DIV., 200 ms./DIV.

      Vehicle Condition

      Vehicle approaching speaker operating

    OK

    The waveform is similar to that shown in the illustration.

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER

    Click here

    OK

  3. INSPECT VEHICLE APPROACHING SPEAKER ASSEMBLY

    Note:

    • Make sure that there is no looseness, rattling, or other problem with the vehicle approaching speaker assembly installation.

    • Make sure that there is no foreign matter inside the 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
    OK

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick here

    NG

    REPLACE VEHICLE APPROACHING SPEAKER ASSEMBLY

    Click here