AUDIO AND VISUAL SYSTEM, Diagnostic DTC:B15D6

DTC Code DTC Name
B15D6 Display Disconnected

DESCRIPTION

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

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

DTC Code DTC Detection Condition Trouble Area
B15D6*3 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

  • Accessory meter assembly*1

  • Multi-display*2

  • Multi-media module receiver assembly

Tech Tips


  • *3: 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.

WIRING DIAGRAM

A01FUROE15

INSPECTION PROCEDURE

Note

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

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  2. 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 (ACCESSORY METER ASSEMBLY OR MULTI-DISPLAY - BATTERY AND BODY GROUND) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  3. CHECK HARNESS AND CONNECTOR (ACCESSORY METER ASSEMBLY OR MULTI-DISPLAY - BATTERY AND BODY GROUND)


    1. A01FS9DE21
      Text in Illustration
      *A for 12.3 Inch
      *B for 8 Inch
      *a

      Front view of wire harness connector

      (to Accessory Meter Assembly)
      *b

      Front view of wire harness connector

      (to Multi-display)

      Disconnect the accessory meter assembly*1 or multi-display*2 connector.


      • *1: for 12.3 Inch

      • *2: for 8 Inch

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

      Standard Resistance
      for 12.3 Inch
      Tester Connection Condition Specified Condition
      N62-13 (GND1) - Body ground Always Below 1 Ω
      for 8 Inch
      Tester Connection Condition Specified Condition
      N155-13 (GND1) - Body ground Always Below 1 Ω

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

      Standard Voltage
      for 12.3 Inch
      Tester Connection Condition Specified Condition
      N62-12 (+B2) - N62-13 (GND1) Always 11 to 14 V
      N62-24 (ACC) - N62-13 (GND1) Power switch on (ACC) 11 to 14 V
      for 8 Inch
      Tester Connection Condition Specified Condition
      N155-12 (+B2) - N155-13 (GND1) Always 11 to 14 V
      N155-24 (ACC) - N155-13 (GND1) Power switch on (ACC) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT MULTI-MEDIA MODULE RECEIVER ASSEMBLY


    1. A01FUVZE03

      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

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - ACCESSORY METER ASSEMBLY OR MULTI-DISPLAY)


    • *1: for 12.3 Inch

    • *2: for 8 Inch


    1. Disconnect the N68 multi-media module receiver assembly connector.

    2. Disconnect the N62*1 accessory meter assembly connector.

    3. Disconnect the N155*2 multi-display connector.

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

      Standard Resistance
      for 12.3 Inch
      Tester Connection Condition Specified Condition
      N68-45 (TX3+) - N62-7 (TX+) Always Below 1 Ω
      N68-46 (TX3-) - N62-19 (TX-) Always Below 1 Ω
      N68-45 (TX3+) - Body ground Always 10 kΩ or higher
      N68-46 (TX3-) - Body ground Always 10 kΩ or higher
      for 8 Inch
      Tester Connection Condition Specified Condition
      N68-45 (TX3+) - N155-7 (TX+) Always Below 1 Ω
      N68-46 (TX3-) - N155-19 (TX-) Always Below 1 Ω
      N68-45 (TX3+) - Body ground Always 10 kΩ or higher
      N68-46 (TX3-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. REPLACE ACCESSORY METER ASSEMBLY OR MULTI-DISPLAY


    1. Replace the accessory meter assembly*1 or multi-display*2 with a new or normally functioning one Click here.


      • *1: for 12.3 Inch

      • *2: for 8 Inch


    NEXT

  7. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  8. 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 (ACCESSORY METER ASSEMBLY OR MULTI-DISPLAY IS DEFECTIVE)