NAVIGATION SYSTEM, Diagnostic DTC:B15D5

DTC Code DTC Name
B15D5 Rear Seat Entertainment System Disconnected

DESCRIPTION



DTC No. DTC Detection Condition Trouble Area
B15D5*1 A device that is listed in the MOST network connected device record of the master unit is missing.

  • Television display assembly power source circuit

  • MOST circuit between stereo component amplifier assembly and television display assembly

  • MOST circuit between television display assembly and navigation ECU sub-assembly

  • Television display assembly

  • Navigation ECU sub-assembly
B15D5*2

When either condition below is met:


  • Television display assembly is/was not connected while the engine switch is/was on (IG or ACC).

  • Communication between the master unit and the television display assembly is/was not possible when the engine is/was started.

  • Television display assembly power source circuit

  • AVC-LAN circuit between navigation ECU sub-assembly and television display assembly

  • Television display assembly

  • Navigation ECU sub-assembly

  • Harness or connector

Tech Tips


    w/ Front Center Speaker

  • For the MOST network, the navigation ECU sub-assembly is the master unit.


    w/o Front Center Speaker

  • Even if no fault is present, this DTC may be stored depending on the battery condition or engine start voltage.

  • The navigation ECU sub-assembly is the master unit.

WIRING DIAGRAM


  1. w/ Front Center Speaker

    A01CCW0E01

  2. w/o Front Center Speaker

    A01CFJDE03

INSPECTION PROCEDURE

Note


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

  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System Click here.

PROCEDURE


  1. CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    1. Check for optional components.


      1. Check that optional components (including associated wiring) which generate radio waves are not installed.

        Result
        Result Proceed to
        Optional components (including associated wiring) are installed. A
        Optional components (including associated wiring) are not installed. B

        Tech Tips


        • Electrical noise from radio waves generated by optional components or the wiring for those components may affect MOST communication.

        • This DTC may be stored when a MOST communication error occurs due to electrical noise.


    B

    CHECK DTC Click here

    A

  2. REMOVE OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)


    1. Remove optional components (including associated wiring).

      Note

      Do not remove optional components or associated wiring without the permission of the customer.


    NEXT

  3. CHECK DTC


    1. Clear the DTCs Click here.

    2. Recheck for DTCs and check that no DTCs are output.

      OK
      No DTCs are output.

    3. Proceed to the next step based on the inspection result.

      Result
      Result Proceed to
      OK A
      NG (w/ Front Center Speaker) B
      NG (w/o Front Center Speaker) C

    B

    CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY POWER SOURCE) Click here

    C

    CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY POWER SOURCE) Click here

    A

    END

  4. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY POWER SOURCE)


    1. Disconnect the S3 television display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      S3-3 (GND) - Body ground Always Below 1 Ω
      S3-4 (GND4) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      S3-1 (+B) - S3-3 (GND) Always 11 to 14 V
      S3-11 (+B2) - S3-3 (GND) Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)


    1. Disconnect the S4 television display assembly connector.

    2. Disconnect the F30 stereo component amplifier assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      S4-2 (MI+) - F30-5 (MO+) Always Below 1 Ω
      S4-3 (MI-) - F30-6 (MO-) Always Below 1 Ω
      S4-4 (SLDI) - F30-7 (SLDO) Always Below 1 Ω
      S4-2 (MI+) - Body ground Always 10 kΩ or higher
      S4-3 (MI-) - Body ground Always 10 kΩ or higher
      S4-4 (SLDI) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - NAVIGATION ECU SUB-ASSEMBLY)


    1. Disconnect the S4 television display assembly connector.

    2. Disconnect the F31 navigation ECU sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      S4-5 (MO+) - F31-2 (MI+) Always Below 1 Ω
      S4-6 (MO-) - F31-3 (MI-) Always Below 1 Ω
      S4-7 (SLDO) - F31-4 (SLDI) Always Below 1 Ω
      S4-5 (MO+) - Body ground Always 10 kΩ or higher
      S4-6 (MO-) - Body ground Always 10 kΩ or higher
      S4-7 (SLDO) - Body ground Always 10 kΩ or higher

    4. Proceed to the next step based on the inspection result.

      Result
      Result Proceed to
      NG A
      OK B

    B

    REPLACE TELEVISION DISPLAY ASSEMBLY Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY POWER SOURCE)


    1. Disconnect the S6 television display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      S6-17 (GND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      S6-1 (+B) - S6-17 (GND) Always 11 to 14 V
      S6-2 (ACC) - S6-17 (GND) Engine switch on (ACC) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - NAVIGATION ECU SUB-ASSEMBLY)


    1. Disconnect the F35 navigation ECU sub-assembly connector.

    2. Disconnect the S6 television display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F35-9 (TX+) - S6-3 (TX+) Always Below 1 Ω
      F35-10 (TX-) - S6-4 (TX-) Always Below 1 Ω
      F35-9 (TX+) - Body ground Always 10 kΩ or higher
      F35-10 (TX-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. REPLACE TELEVISION DISPLAY ASSEMBLY


    1. Replace the television display assembly Click here.

    2. Clear the DTCs Click here.

    3. Recheck for DTCs and check that no DTCs are output.

      OK
      No DTCs are output.

    NG

    REPLACE NAVIGATION ECU SUB-ASSEMBLY Click here

    OK

    END