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

DTC Code DTC Name
B15D3 Stereo Component Amplifier Disconnected

DESCRIPTION

The multi-media module receiver assembly and stereo component amplifier assembly are connected by the MOST communication line.

When a MOST communication error occurs between the multi-media module receiver assembly and stereo component amplifier assembly, these DTCs will be stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15D3

Stereo Component Amplifier Disconnected

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

  • Stereo component amplifier assembly

  • Multi-media module receiver assembly
Tip:

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

WIRING DIAGRAM

E287191E01
E287194E01

CAUTION / NOTICE / HINT

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
        Tip:

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

        • This DTC may be stored when an AVC-LAN communication error occurs due to electrical noise.

    B

    CLEAR DTCClick 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.

    Result

    Proceed to

    NEXT
    NEXT

  3. CLEAR DTC

    1. Clear the DTCs.

      Click hereClick here

      Body Electrical > Navigation System > Clear DTCs

    Result

    Proceed to

    NEXT
    NEXT

  4. CHECK FOR DTC

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

      Click hereClick here

      Body Electrical > Navigation System > Trouble Codes

      OK

      No DTCs are output.

    Result

    Proceed to

    OK

    NG
    OK

    END (COMMUNICATION MALFUNCTION DUE TO NOISE)

    NG

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

    1. E282859C01

      *A

      for 17 Speakers

      *B

      for 9 Speakers

      *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

      for 17 Speakers

      Tester Connection

      Condition

      Specified Condition

      R43-3 (GND) - Body ground

      Always

      Below 1 Ω

      R43-18 (GND2) - Body ground

      Always

      Below 1 Ω

      for 9 Speakers

      Tester Connection

      Condition

      Specified Condition

      H48-3 (GND) - Body ground

      Always

      Below 1 Ω

      H48-18 (GND2) - Body ground

      Always

      Below 1 Ω

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

      Standard Voltage

      for 17 Speakers

      Tester Connection

      Condition

      Specified Condition

      R43-1 (+B) - R43-3 (GND)

      Always

      11 to 14 V

      R43-16 (+B2) - R43-3 (GND)

      Always

      11 to 14 V

      for 9 Speakers

      Tester Connection

      Condition

      Specified Condition

      H48-1 (+B) - H48-3 (GND)

      Always

      11 to 14 V

      H48-16 (+B2) - H48-3 (GND)

      Always

      11 to 14 V

    Result

    Result

    Proceed to

    OK (w/o Rear Seat Entertainment System)

    A

    OK (w/ Rear Seat Entertainment System)

    B

    NG

    C
    B

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

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

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

    1. Disconnect the H62 multi-media module receiver assembly connector.

    2. Disconnect the R50*1 or H73*2 stereo component amplifier assembly connector.

      • *1: for 17 Speakers

      • *2: for 9 Speakers

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

      Standard Resistance

      Table 1. for 17 Speakers

      Tester Connection

      Condition

      Specified Condition

      H62-2 (MI+) - R50-5 (MO+)

      Always

      Below 1 Ω

      H62-3 (MI-) - R50-6 (MO-)

      Always

      Below 1 Ω

      H62-4 (SLDI) - R50-7 (SLDO)

      Always

      Below 1 Ω

      H62-5 (MO+) - R50-2 (MI+)

      Always

      Below 1 Ω

      H62-6 (MO-) - R50-3 (MI-)

      Always

      Below 1 Ω

      H62-7 (SLDO) - R50-4 (SLDI)

      Always

      Below 1 Ω

      H62-2 (MI+) - Body ground

      Always

      10 kΩ or higher

      H62-3 (MI-) - Body ground

      Always

      10 kΩ or higher

      H62-4 (SLDI) - Body ground

      Always

      10 kΩ or higher

      H62-5 (MO+) - Body ground

      Always

      10 kΩ or higher

      H62-6 (MO-) - Body ground

      Always

      10 kΩ or higher

      H62-7 (SLDO) - Body ground

      Always

      10 kΩ or higher
      Table 2. for 9 Speakers

      Tester Connection

      Condition

      Specified Condition

      H62-2 (MI+) - H73-5 (MO+)

      Always

      Below 1 Ω

      H62-3 (MI-) - H73-6 (MO-)

      Always

      Below 1 Ω

      H62-4 (SLDI) - H73-7 (SLDO)

      Always

      Below 1 Ω

      H62-5 (MO+) - H73-2 (MI+)

      Always

      Below 1 Ω

      H62-6 (MO-) - H73-3 (MI-)

      Always

      Below 1 Ω

      H62-7 (SLDO) - H73-4 (SLDI)

      Always

      Below 1 Ω

      H62-2 (MI+) - Body ground

      Always

      10 kΩ or higher

      H62-3 (MI-) - Body ground

      Always

      10 kΩ or higher

      H62-4 (SLDI) - Body ground

      Always

      10 kΩ or higher

      H62-5 (MO+) - Body ground

      Always

      10 kΩ or higher

      H62-6 (MO-) - Body ground

      Always

      10 kΩ or higher

      H62-7 (SLDO) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

    1. Replace the stereo component amplifier assembly with a known good one.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  8. CLEAR DTC

    1. Clear the DTCs.

      Click hereClick here

      Body Electrical > Navigation System > Clear DTCs

    Result

    Proceed to

    NEXT
    NEXT

  9. CHECK FOR DTC

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

      Click hereClick here

      Body Electrical > Navigation System > Trouble Codes

      OK

      No DTCs are output.

    Result

    Proceed to

    OK

    NG
    OK

    END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    Click here

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

    1. Disconnect the H62 multi-media module receiver assembly connector.

    2. Disconnect the R50 stereo component amplifier assembly connector.

    3. Disconnect the H63 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

      H62-5 (MO+) - R50-2 (MI+)

      Always

      Below 1 Ω

      H62-6 (MO-) - R50-3 (MI-)

      Always

      Below 1 Ω

      H62-7 (SLDO) - R50-4 (SLDI)

      Always

      Below 1 Ω

      R50-5 (MO+) - H63-2 (MI+)

      Always

      Below 1 Ω

      R50-6 (MO-) - H63-3 (MI-)

      Always

      Below 1 Ω

      R50-7 (SLDO) - H63-4 (SLDI)

      Always

      Below 1 Ω

      R50-2 (MI+) - Body ground

      Always

      10 kΩ or higher

      R50-3 (MI-) - Body ground

      Always

      10 kΩ or higher

      R50-4 (SLDI) - Body ground

      Always

      10 kΩ or higher

      R50-5 (MO+) - Body ground

      Always

      10 kΩ or higher

      R50-6 (MO-) - Body ground

      Always

      10 kΩ or higher

      R50-7 (SLDO) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY

    1. Replace the stereo component amplifier assembly with a known good one.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  12. CLEAR DTC

    1. Clear the DTCs.

      Click hereClick here

      Body Electrical > Navigation System > Clear DTCs

    Result

    Proceed to

    NEXT
    NEXT

  13. CHECK FOR DTC

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

      Click hereClick here

      Body Electrical > Navigation System > Trouble Codes

      OK

      No DTCs are output.

    Result

    Proceed to

    OK

    NG
    OK

    END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECT)

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    Click here