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AUDIO AND VISUAL SYSTEM, Diagnostic DTC:B15DA

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DTC Code DTC Name
B15DA Rear Console Recognition Disconnected
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DESCRIPTION

The rear power seat switch (rear multi operation panel) and radio receiver assembly are connected by an AVC-LAN communication line. When an AVC-LAN communication error occurs between the radio receiver assembly and rear power seat switch (rear multi operation panel), these DTCs will be stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15DA Rear Console Recognition Disconnected A device that is listed in the AVC-LAN connected device record of the master unit is missing.

  • Rear power seat switch (rear multi operation panel) power source circuit

  • Rear power seat switch (rear multi operation panel)

  • AVC-LAN circuit

  • Air conditioning control assembly (switch and volume)

  • Rear seat armrest assembly center

  • Radio receiver assembly

  • Harness or connector
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

  • Inspect the fuse for circuits related to this system before performing the following procedure.

  • When replacing the radio receiver assembly, always replace it with a new one.

    If a radio receiver assembly which was installed to another vehicle is used, the following may occur:


    • A communication malfunction DTC may be stored.

    • The radio receiver assembly may not operate normally.

Tip:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.

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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.

        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.


  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.

      Result
      Proceed to
      NEXT

  3. Click here

    CHECK DTC


    1. Clear the DTCs.

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      1. Body Electrical > Navigation System > Clear DTCs


    2. Recheck for DTCs and check that no DTCs are output.

      Click here


      1. Body Electrical > Navigation System > Trouble Codes


      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    • OK

      END (COMMUNICATION MALFUNCTION DUE TO NOISE)

    • NGClick here
  4. Click here

    CHECK HARNESS AND CONNECTOR (REAR SEAT ARMREST ASSEMBLY CENTER - BATTERY AND BODY GROUND)


    1. Disconnect the L80 rear seat armrest assembly center connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L80-1 (E) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      L80-17 (B) - Body ground Power switch off 11 to 14 V
      L80-6 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. Click here

    CHECK REAR SEAT ARMREST ASSEMBLY CENTER


    1. B004R1FC17
      *a

      Front view of wire harness connector

      (to Rear Power Seat Switch [Rear Multi Operation Panel])

      Remove the rear power seat switch (rear multi operation panel).

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-1 (E) - 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
      A-12 (B) - Body ground Power switch off 11 to 14 V
      A-6 (ACC) - Body ground Power switch on (ACC) 11 to 14 V
      Result
      Proceed to
      OK
      NG

  6. Click here

    CHECK HARNESS AND CONNECTOR (REAR SEAT ARMREST ASSEMBLY CENTER - AIR CONDITIONING CONTROL ASSEMBLY [SWITCH AND VOLUME])


    1. Disconnect the L80 rear seat armrest assembly center connector.

    2. Disconnect the G80 air conditioning control assembly (switch and volume) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L80-12 (TX+) - G80-9 (TX+) Always Below 1 Ω
      L80-13 (TX-) - G80-10 (TX-) Always Below 1 Ω
      L80-12 (TX+) - Body ground Always 10 kΩ or higher
      L80-13 (TX-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. Click here

    INSPECT REAR SEAT ARMREST ASSEMBLY CENTER


    1. B004U76E02

      Remove the rear seat armrest assembly center.

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    2. Remove the rear power seat switch (rear multi operation panel).

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      12 (TX+) - A-7 (TX-) Always Below 1 Ω
      13 (TX-) - A-8 (TX-) Always Below 1 Ω
      A-7 (TX+) - A-8 (TX-) Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

  8. Click here

    CHECK REAR POWER SEAT SWITCH (REAR MULTI OPERATION PANEL)


    1. Replace the rear power seat switch (rear multi operation panel) with a new or known good one.

      Click here

    2. Clear the DTCs.

      Click here


      1. Body Electrical > Navigation System > Clear DTCs


    3. Recheck for DTCs and check that no DTCs are output.

      Click here


      1. Body Electrical > Navigation System > Trouble Codes


      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    • OK

      END (REAR POWER SEAT SWITCH [REAR MULTI OPERATION PANEL] IS DEFECTIVE)

    • NGClick here
  9. Click here

    CHECK AIR CONDITIONING CONTROL ASSEMBLY (SWITCH AND VOLUME)


    1. Replace the air conditioning control assembly (switch and volume) with a new or known good one.

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    2. Clear the DTCs.

      Click here


      1. Body Electrical > Navigation System > Clear DTCs


    3. Recheck for DTCs and check that no DTCs are output.

      Click here


      1. Body Electrical > Navigation System > Trouble Codes


      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    • OK

      END (AIR CONDITIONING CONTROL ASSEMBLY [SWITCH AND VOLUME] IS DEFECTIVE)

    • NG

      REPLACE RADIO RECEIVER ASSEMBLYClick here