NAVIGATION SYSTEM, Diagnostic DTC:B15D3

DTC Code DTC Name
B15D3 Stereo Component Amplifier Disconnected

DESCRIPTION

The multi-media module receiver assembly, stereo component amplifier assembly, television display assembly*1 and multi-display controller sub-assembly*2 are connected by the MOST communication line.

When a MOST communication error occurs between the multi-media module receiver assembly, stereo component amplifier assembly, television display assembly*1 and multi-display controller sub-assembly*2, these DTCs will be stored.


DTC Code DTC Detection Condition Trouble Area
B15D3 A device that is listed in the MOST network connected device record of the master unit is missing.

  • Stereo component amplifier assembly power source circuit

  • MOST circuit between multi-media module receiver assembly and stereo component amplifier assembly

  • MOST circuit between stereo component amplifier and television display assembly*1

  • MOST circuit between stereo component amplifier and multi-display controller sub-assembly*2

  • Stereo component amplifier assembly

  • Multi-media module receiver assembly

  • Television display assembly*1

  • Multi-display controller sub-assembly*2

Tech Tips

For the MOST network, the multi-media module receiver assembly is the master unit.

WIRING DIAGRAM

A01EOG1E01

INSPECTION PROCEDURE

Note

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

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

    CLEAR 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. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  4. CHECK DTC


    1. Recheck for DTCs and check if the same DTC is output again Click here.

      OK
      No DTCs are output.

    NG

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - BATTERY AND BODY GROUND) Click here

    OK

    END (COMMUNICATION MALFUNCTION DUE TO NOISE)

  5. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - BATTERY AND BODY GROUND)


    1. A01ESFHE14
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Stereo Component Amplifier Assembly)

      Disconnect the stereo component amplifier assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F73-3 (GND) - Body ground Always Below 1 Ω
      F73-18 (GND2) - 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
      F73-1 (+B) - F73-3 (GND) Always 11 to 14 V
      F73-16 (+B2) - F73-3 (GND) Always 11 to 14 V
      Result
      Result Proceed to
      OK (w/o Rear Seat Entertainment System) A
      OK (w/ Rear Seat Entertainment System [for Roof]) B
      OK (w/ Rear Seat Entertainment System [for Seatback]) C
      NG D

    B

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - MULTI-MEDIA MODULE RECEIVER AND TELEVISION DISPLAY) Click here

    C

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - MULTI-MEDIA MODULE RECEIVER AND MULTI-DISPLAY CONTROLLER) Click here

    D

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  6. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY)


    1. Disconnect the F87 multi-media module receiver assembly connector.

    2. Disconnect the F86 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
      F87-2 (MI+) - F86-5 (MO+) Always Below 1 Ω
      F87-3 (MI-) - F86-6 (MO-) Always Below 1 Ω
      F87-4 (SLDI) - F86-7 (SLDO) Always Below 1 Ω
      F87-5 (MO+) - F86-2 (MI+) Always Below 1 Ω
      F87-6 (MO-) - F86-3 (MI-) Always Below 1 Ω
      F87-7 (SLDO) - F86-4 (SLDI) Always Below 1 Ω
      F87-2 (MI+) - Body ground Always 10 kΩ or higher
      F87-3 (MI-) - Body ground Always 10 kΩ or higher
      F87-4 (SLDI) - Body ground Always 10 kΩ or higher
      F87-5 (MO+) - Body ground Always 10 kΩ or higher
      F87-6 (MO-) - Body ground Always 10 kΩ or higher
      F87-7 (SLDO) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY


    1. Replace the stereo component amplifier assembly with a new or normally functioning one Click here.


    NEXT

  8. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  9. CHECK DTC


    1. Recheck for DTCs and check if the same DTC is output again Click here.

      OK
      No DTCs are output.

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

    END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)

  10. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - MULTI-MEDIA MODULE RECEIVER AND TELEVISION DISPLAY)


    1. Disconnect the F87 multi-media module receiver assembly connector.

    2. Disconnect the F86 stereo component amplifier assembly connector.

    3. Disconnect the L59 television assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F87-5 (MO+) - F86-2 (MI+) Always Below 1 Ω
      F87-6 (MO-) - F86-3 (MI-) Always Below 1 Ω
      F87-7 (SLDO) - F86-4 (SLDI) Always Below 1 Ω
      F86-5 (MO+) - L59-2 (MI+) Always Below 1 Ω
      F86-6 (MO-) - L59-3 (MI-) Always Below 1 Ω
      F86-7 (SLDO) - L59-4 (SLDI) Always Below 1 Ω
      F86-2 (MI+) - Body ground Always 10 kΩ or higher
      F86-3 (MI-) - Body ground Always 10 kΩ or higher
      F86-4 (SLDI) - Body ground Always 10 kΩ or higher
      F86-5 (MO+) - Body ground Always 10 kΩ or higher
      F86-6 (MO-) - Body ground Always 10 kΩ or higher
      F86-7 (SLDO) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY


    1. Replace the stereo component amplifier assembly with a new or normally functioning one Click here.


    NEXT

  12. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  13. CHECK DTC


    1. Recheck for DTCs and check if the same DTC is output again Click here.


    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

    END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)

  14. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - MULTI-MEDIA MODULE RECEIVER AND MULTI-DISPLAY CONTROLLER)


    1. Disconnect the F87 multi-media module receiver assembly connector.

    2. Disconnect the F86 stereo component amplifier assembly connector.

    3. Disconnect the L60 multi-display controller sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F87-5 (MO+) - F86-2 (MI+) Always Below 1 Ω
      F87-6 (MO-) - F86-3 (MI-) Always Below 1 Ω
      F87-7 (SLDO) - F86-4 (SLDI) Always Below 1 Ω
      F86-5 (MO+) - L60-2 (MI+) Always Below 1 Ω
      F86-6 (MO-) - L60-3 (MI-) Always Below 1 Ω
      F86-7 (SLDO) - L60-4 (SLDI) Always Below 1 Ω
      F86-2 (MI+) - Body ground Always 10 kΩ or higher
      F86-3 (MI-) - Body ground Always 10 kΩ or higher
      F86-4 (SLDI) - Body ground Always 10 kΩ or higher
      F86-5 (MO+) - Body ground Always 10 kΩ or higher
      F86-6 (MO-) - Body ground Always 10 kΩ or higher
      F86-7 (SLDO) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY


    1. Replace the stereo component amplifier assembly with a new or normally functioning one Click here.


    NEXT

  16. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  17. CHECK DTC


    1. Recheck for DTCs and check if the same DTC is output again Click here.


    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

    END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)