NAVIGATION SYSTEM, Diagnostic DTC:B15DA

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.

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   CLEAR DTC

   
   

   1. Clear the DTCs (Click here).

   
   
   • NEXTClick 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.

   
   
   • OKClick here
   • NGClick here
3. Click here

   CHECK HARNESS AND CONNECTOR (REAR POWER SEAT SWITCH [AUDIO SWITCH] - AUXILIARY BATTERY AND BODY GROUND)

   
   
   1. 

      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 z54-9 (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 z54-14 (B) - Body ground Always 11 to 14 V

      Table 1. 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])

   
   
   • OKClick here
   • NGClick here
4. Click here

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

   
   

   1. Disconnect the S15*1 or z54*2 rear power seat switch (audio switch) connector.

      
      

      • *1: for 4-Passenger with Ottoman

      • *2: except 4-Passenger with Ottoman

   2. Disconnect the L163 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+) - L163-6 (TX1+) Always Below 1 Ω S15-3 (TX-) - L163-18 (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 z54-10 (TX+) - L163-6 (TX1+) Always Below 1 Ω z54-11 (TX-) - L163-18 (TX1-) Always Below 1 Ω z54-10 (TX+) - Body ground Always 10 kΩ or higher z54-11 (TX-) - Body ground Always 10 kΩ or higher

   
   
   • OKClick here
   • NGClick here
5. Click here

   CHECK REAR POWER SEAT SWITCH

   
   

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

      
      

      • for Power Seat:Click here

      • for 4-Passenger with Ottoman:Click here

      • for 5-Passenger with Ottoman:Click here

      • for Fixed Seat Type:Click here

   
   
   • NEXTClick here
6. Click here

   CLEAR DTC

   
   

   1. Clear the DTCs (Click here).

   
   
   • NEXTClick here
7. Click here

   CHECK DTC

   
   

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

      OK
      No DTCs are output.

   
   
   • OKClick here
   • NGClick here
8. Click here

   END (COMMUNICATION MALFUNCTION DUE TO NOISE)

9. Click here

   REPAIR OR REPLACE HARNESS OR CONNECTOR

10. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

11. Click here

    REPLACE ACCESSORY METER ASSEMBLYClick here

12. Click here

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