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NAVIGATION SYSTEM, Diagnostic DTC:B15D6

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DTC Code DTC Name
B15D6 Display Disconnected
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DESCRIPTION

The multi-display assembly and multi-media module receiver assembly are connected by an AVC-LAN communication line.

When an AVC-LAN communication error occurs between the multi-media module receiver assembly and multi-display assembly, these DTCs will be stored.

DTC Code DTC Detection Condition Trouble Area
B15D6* A device that is listed in the AVC-LAN connected device record of the master unit is missing.

  • Multi-display power source circuit

  • AVC-LAN circuit

  • Multi-display assembly

  • Multi-media module receiver assembly
Tip:

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

  • The multi-media module receiver assembly is the master unit.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Note:

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

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PROCEDURE


  1. Click here

    CLEAR DTC


    1. Clear the DTCs (Click here).


  2. Click here

    CHECK DTC


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

      OK
      No DTCs are output

  3. Click here

    CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY ASSEMBLY - BATTERY AND BODY GROUND)


    1. A0157V6E23

      Disconnect the multi-display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F79-13 (GND1) - 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
      F79-12 (+B2) - F79-13 (GND1) Always 11 to 14 V
      F79-23 (IG) - F79-13 (GND1) Engine switch on (IG) 11 to 14 V
      F79-24 (ACC) - F79-13 (GND1) Engine switch on (ACC) 11 to 14 V
      Table 1. Text in Illustration
      *a

      Front view of wire harness connector

      (to Multi-display Assembly)

  4. Click here

    INSPECT MULTI-MEDIA MODULE RECEIVER ASSEMBLY


    1. A015B7SE03

      Remove the multi-media module receiver assembly (Click here).

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      45 (TX3+) - 46 (TX3-) Always 60 to 80 Ω

  5. Click here

    CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - MULTI-DISPLAY ASSEMBLY)


    1. Disconnect the F77 multi-media module receiver assembly connector.

    2. Disconnect the F79 multi-display assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F77-45 (TX3+) - F79-7 (TX+) Always Below 1 Ω
      F77-46 (TX3-) - F79-19 (TX-) Always Below 1 Ω
      F77-45 (TX3+) - Body ground Always 10 kΩ or higher
      F77-46 (TX3-) - Body ground Always 10 kΩ or higher

  6. Click here

    REPLACE MULTI-DISPLAY ASSEMBLY


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


  7. Click here

    CLEAR DTC


    1. Clear the DTCs (Click here).


  8. Click here

    CHECK DTC


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

      OK
      No DTCs are output

  9. Click here

    USE SIMULATION METHOD TO CHECKClick here

  10. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  11. Click here

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLYClick here

  12. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  13. Click here

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLYClick here

  14. Click here

    END (MULTI-DISPLAY ASSEMBLY IS DEFECTIVE)