VEHICLE PROXIMITY NOTIFICATION SYSTEM Communication between Vehicle Proximity Notification System and Diagnostic Tool is not Possible

DESCRIPTION

The vehicle approaching speaker controller communicates with the Techstream through the DLC3.

WIRING DIAGRAM

A01I591E03

INSPECTION PROCEDURE

Note

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

Tech Tips

The vehicle approaching speaker controller and Techstream communicate using SIL communication.

PROCEDURE


  1. CHECK DTC OUTPUT


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the Techstream on.

    4. Enter the following menus: Health Check.

      Result
      Result Proceed to
      Communication with the vehicle approaching speaker controller is not possible A
      Communication with the vehicle approaching speaker controller is possible B

    B

    USE SIMULATION METHOD TO CHECK Click here

    A

  2. CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER CONTROLLER - IG1 NO. 2 RELAY)


    1. Disconnect the I71 vehicle approaching speaker controller connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I71-1 (IG) - Body ground Power switch on (IG) 11 to 14 V

    NG

    CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER CONTROLLER - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER CONTROLLER - BODY GROUND)


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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I71-7 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER CONTROLLER - DLC3)


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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I71-9 (PRST) - I39-7 (SIL) Always Below 1 Ω
      I71-9 (PRST) or I39-7 (SIL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (DLC3 - BODY GROUND)


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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I39-4 (CG) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE VEHICLE APPROACHING SPEAKER CONTROLLER Click here

  6. CHECK HARNESS AND CONNECTOR (VEHICLE APPROACHING SPEAKER CONTROLLER - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the 3A instrument panel junction block assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I71-1 (IG) - 3A-56 Always Below 1 Ω
      I71-1 (IG) or 3A-56 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here