PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:B2064

DTC Code DTC Name
B2064 Vehicle Type Signal Malfunction

DESCRIPTION

The seat belt control ECU is connected to the main body ECU through CAN communication.

The seat belt control ECU receives the steering wheel position information from the main body ECU via CAN communication and stores the vehicle model information. If the seat belt control ECU cannot receive the steering wheel position information from the main body ECU, DTC B2064 is stored.

DTC Code DTC Detection Condition Trouble Area
B2064 During the initial check, the steering wheel position information sent to the seat belt control ECU from the main body ECU stops for 3 seconds or more.

  • CAN communication system

  • Main body ECU (Multiplex network body ECU)

  • Seat belt control ECU

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 B2064 is not output.

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  3. REPLACE SEAT BELT CONTROL ECU


    1. Replace the seat belt control ECU Click here.


    NEXT

  4. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2064 is not output.

    OK

    END (SEAT BELT CONTROL ECU IS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here