NAVIGATION SYSTEM, Diagnostic DTC:B15DA

DTC Code DTC Name
B15DA Rear Console Recognition Disconnected

DESCRIPTION

The rear power seat switch and multi-media module receiver assembly are connected by the AVC-LAN communication line. When an AVC-LAN communication error occurs between the rear power seat switch (audio switch) and the multi-media module receiver assembly, this DTC will be stored.

DTC Code DTC Detection Condition Trouble Area
B15DA A device that is listed in the AVC-LAN connected device record of the master unit is missing.

  • Rear power seat switch (audio switch)

  • Accessory meter assembly

  • Harness or connector

WIRING DIAGRAM

A001DCAE07

CAUTION / NOTICE / HINT

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.

    OK

    END (COMMUNICATION MALFUNCTION DUE TO NOISE)

    NG

  3. CHECK HARNESS AND CONNECTOR (REAR POWER SEAT SWITCH [AUDIOSWITCH] - BATTERY AND BODY GROUND)


    1. A001F72E01
      Text in Illustration
      *A for 4-passenger with Ottoman
      *B except 4-passenger with Ottoman
      *a

      Front view of wire harness connector

      (to Rear Power Seat Switch [Audio Switch])

      Disconnect the rear power seat switch (audio switch) connector.

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

      Standard Resistance
      for 4-passenger with Ottoman
      Tester Connection Condition Specified Condition
      S15-1 (E) - Body ground Always Below 1 Ω
      except 4-passenger with Ottoman
      Tester Connection Condition Specified Condition
      r2-9 (E) - Body ground Always Below 1 Ω

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

      Standard Voltage
      for 4-passenger with Ottoman
      Tester Connection Condition Specified Condition
      S15-8 (B) - Body ground Always 11 to 14 V
      except 4-passenger with Ottoman
      Tester Connection Condition Specified Condition
      r2-14 (B) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (REAR POWER SEAT MODULE SWITCH [AUDIOSWITCH] - ACCESSORY METER ASSEMBLY)


    1. Disconnect the S15*1 or r2*2 rear power seat switch (audio switch) connector.


      • *1: for 4-passenger with Ottoman

      • *2: except 4-passenger with Ottoman

    2. Disconnect the L145 accessory meter assembly connector.

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

      Standard Resistance
      for 4-passenger with Ottoman
      Tester Connection Condition Specified Condition
      S15-4 (TX+) - L145-6 (TX1+) Always Below 1 Ω
      S15-3 (TX-) - L145-18 (TX1-) Always Below 1 Ω
      S15-4 (TX+) - Body ground Always 10 kΩ or higher
      S15-3 (TX-) - Body ground Always 10 kΩ or higher
      except 4-passenger with Ottoman
      Tester Connection Condition Specified Condition
      r2-10 (TX+) - L145-6 (TX1+) Always Below 1 Ω
      r2-11 (TX-) - L145-18 (TX1-) Always Below 1 Ω
      r2-10 (TX+) - Body ground Always 10 kΩ or higher
      r2-11 (TX-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK REAR POWER SEAT SWITCH


    1. Replace the rear power seat switch with a new or normally functioning one.



    NEXT

  6. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  7. CHECK DTC


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

      OK
      No DTCs are output.

    OK

    END (REAR POWER SEAT SWITCH [AUDIO SWITCH] IS DEFECTIVE)

    NG

    REPLACE ACCESSORY METER ASSEMBLY Click here