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AUDIO AND VISUAL SYSTEM(w/ Navigation System), Diagnostic DTC:B15D3

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DTC Code DTC Name
B15D3 Stereo Component Amplifier Disconnected
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DESCRIPTION

The multi-media module receiver assembly, television display assembly* and stereo component amplifier assembly are connected by the MOST network.

When a MOST network error occurs between the multi-media module receiver assembly, television display assembly and stereo component amplifier assembly, 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 television display assembly and stereo component amplifier assembly*

  • Stereo component amplifier assembly

  • Multi-media module receiver assembly

  • Television display assembly*

Tip:

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

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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

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

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PROCEDURE


  1. Click here

    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.

        Table 1. Result
        Result Proceed to
        Optional components (including associated wiring) are installed. A
        Optional components (including associated wiring) are not installed. B
        Tip:

        • 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.


  2. Click here

    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.


  3. Click here

    CLEAR DTC


    1. Clear the DTCs (Click here).


  4. Click here

    CHECK DTC


    1. Recheck for DTCs and check if the same DTCs are output again (Click here).

      OK
      No DTCs are output.

    • OK

      END (COMMUNICATION MALFUNCTION DUE TO NOISE)

    • NGClick here
  5. Click here

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


    1. A01X57BE02

      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
      F74-3 (GND) - Body ground Always Below 1 Ω
      F74-18 (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
      F74-1 (+B) - F74-3 (GND) Always 11 to 14 V
      F74-16 (+B2) - F74-3 (GND) Always 11 to 14 V
      Table 2. Text in Illustration
      *a

      Front view of wire harness connector

      (to Stereo Component Amplifier Assembly)
      Table 3. Result
      Result Proceed to
      OK (w/o Rear Seat Entertainment System) A
      OK (w/ Rear Seat Entertainment System) B
      NG C

  6. Click here

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


    1. Disconnect the F84 multi-media module receiver assembly connector.

    2. Disconnect the F85 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
      F84-2 (MI+) - F85-5 (MO+) Always Below 1 Ω
      F84-3 (MI-) - F85-6 (MO-) Always Below 1 Ω
      F84-4 (SLDI) - F85-7 (SLDO) Always Below 1 Ω
      F84-5 (MO+) - F84-2 (MI+) Always Below 1 Ω
      F84-6 (MO-) - F85-3 (MI-) Always Below 1 Ω
      F84-7 (SLDO) - F85-4 (SLDI) Always Below 1 Ω
      F84-2 (MI+) - Body ground Always 10 kΩ or higher
      F84-3 (MI-) - Body ground Always 10 kΩ or higher
      F84-4 (SLDI) - Body ground Always 10 kΩ or higher
      F84-5 (MO+) - Body ground Always 10 kΩ or higher
      F84-6 (MO-) - Body ground Always 10 kΩ or higher
      F84-7 (SLDO) - Body ground Always 10 kΩ or higher

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. Click here

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY


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


  8. Click here

    CLEAR DTC


    1. Clear the DTCs (Click here).


  9. Click here

    CHECK DTC


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

      OK
      No DTCs are output.

    • OK

      END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)

    • NG

      REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY (Click here)

  10. Click here

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


    1. Disconnect the F84 multi-media module receiver assembly connector.

    2. Disconnect the F85 stereo component amplifier assembly connector.

    3. Disconnect the L56 television display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F84-5 (MO+) - F85-2 (MI+) Always Below 1 Ω
      F84-6 (MO-) - F85-3 (MI-) Always Below 1 Ω
      F84-7 (SLDO) - F85-4 (SLDI) Always Below 1 Ω
      F85-5 (MO+) - L56-2 (MI+) Always Below 1 Ω
      F85-6 (MO-) - L56-3 (MI-) Always Below 1 Ω
      F85-7 (SLDO) - L56-4 (SLDI) Always Below 1 Ω
      F85-2 (MI+) - Body ground Always 10 kΩ or higher
      F85-3 (MI-) - Body ground Always 10 kΩ or higher
      F85-4 (SLDI) - Body ground Always 10 kΩ or higher
      F85-5 (MO+) - Body ground Always 10 kΩ or higher
      F85-6 (MO-) - Body ground Always 10 kΩ or higher
      F85-7 (SLDO) - Body ground Always 10 kΩ or higher

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  11. Click here

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY


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


  12. Click here

    CLEAR DTC


    1. Clear the DTCs (Click here).


  13. Click here

    CHECK DTC


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


    • OK

      END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)

    • NGClick here
  14. Click here

    REPLACE TELEVISION DISPLAY ASSEMBLY


    1. Replace the television display assembly with a new or normally functioning one (Click here).


  15. Click here

    CLEAR DTC


    1. Clear the DTCs (Click here).


  16. Click here

    CHECK DTC


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


    • OK

      END (TELEVISION DISPLAY ASSEMBLY IS DEFECTIVE)

    • NG

      REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY (Click here)