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

INSPECTION PROCEDURE

Note

After replacing the headlight swivel ECU, initialization of the ECU is necessary (except w/ Dynamic Headlight Auto Leveling) 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.

    NG

    CHECK CAN COMMUNICATION SYSTEM Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. CHECK CAN COMMUNICATION SYSTEM


    1. for LHD:


      1. Perform a CAN communication system inspection Click here.

    2. for RHD:


      1. Perform a CAN communication system inspection Click here.

        OK
        The CAN communication system is normal.
        Result
        Result Proceed to
        OK (for LHD) A
        OK (for RHD) B
        NG (for LHD) C
        NG (for RHD) D

    B

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    D

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here