LIGHTING SYSTEM, Diagnostic DTC:B2427

DTC Code DTC Name
B2427 CAN Communication Malfunction

DESCRIPTION

The headlight swivel ECU sends and receives data to and from various ECUs via CAN communication.

DTC Code DTC Detection Condition Trouble Area
B2427 CAN communication malfunction between the headlight swivel ECU and other ECUs.

  • CAN communication system

  • Headlight swivel ECU assembly

CAUTION / NOTICE / HINT

Note

After replacing the headlight swivel ECU, initialization of the ECU is necessary Click here.

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2427 output does not occur.

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      for LHD A
      for RHD B

    B

    CHECK CAN COMMUNICATION SYSTEM Click here

    A

  3. CHECK CAN COMMUNICATION SYSTEM


    1. for LHD with Central Gateway ECU:


      1. Perform a CAN communication system inspection Click here.

    2. for LHD without Central Gateway ECU:


      1. Perform a CAN communication system inspection Click here.

        OK
        The CAN communication system is normal.
        Result
        Result Proceed to
        OK A
        NG (for LHD with Central Gateway ECU) B
        NG (for LHD without Central Gateway ECU) C

    A

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

  4. CHECK CAN COMMUNICATION SYSTEM


    1. for RHD with Central Gateway ECU


      1. Perform a CAN communication system inspection Click here.

    2. for RHD without Central Gateway ECU


      1. Perform a CAN communication system inspection Click here.

        OK
        The CAN communication system is normal.
        Result
        Result Proceed to
        OK A
        NG (for RHD with Central Gateway ECU) B
        NG (for RHD without Central Gateway ECU) C

    A

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here