PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:B2085

DTC Code DTC Name
B2085 Communication Error from Driving Support ECU to VSC ECU

DESCRIPTION

The circuit consists of the driving support ECU, skid control ECU and seat belt control ECU. DTC B2085 is stored when the seat belt control ECU detects an interruption in CAN communication between the driving support ECU and skid control ECU.

DTC Code DTC Detection Condition Trouble Area
B2085 The skid control ECU detects an interruption in CAN communication between the driving support ECU and skid control ECU for 1 second or more.

  • CAN communication system

  • Seat belt control ECU

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Select "Bus Check" from the "System Select" screen on the intelligent tester.

    2. Select "Communication Malfunction DTC" from the "Bus Check" screen, and then select "Enter".

      Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output (for LHD with Entry and Start System) B
      CAN DTC is output (for LHD without Entry and Start System) C
      CAN DTC is output (for RHD with Entry and Start System) D
      CAN DTC is output (for RHD without Entry and Start System) E

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    D

    GO TO CAN COMMUNICATION SYSTEM Click here

    E

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2085 is not output.

    NG

    REPLACE SEAT BELT CONTROL ECU Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here