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LIGHTING SYSTEM, Diagnostic DTC:B2427

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DTC Code DTC Name
B2427 CAN Communication Malfunction
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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
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INSPECTION PROCEDURE

Note:

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

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PROCEDURE


  1. Click here

    CHECK FOR DTC


    1. Clear the DTCs (Click here).

    2. Check for DTCs (Click here).

      OK
      DTC B2427 output does not occur.

  2. Click here

    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.
        Table 1. Result
        Result Proceed to
        OK (for LHD) A
        OK (for RHD) B
        NG (for LHD) C
        NG (for RHD) D

  3. Click here

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLYClick here

  4. Click here

    USE SIMULATION METHOD TO CHECKClick here

  5. Click here

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLYClick here

  6. Click here

    GO TO CAN COMMUNICATION SYSTEMClick here

  7. Click here

    GO TO CAN COMMUNICATION SYSTEMClick here