LIGHTING SYSTEM, Diagnostic DTC:B2419

DTC Code DTC Name
B2419 BEAN Communication Malfunction

DESCRIPTION

The AFS ECU receives signals regarding the lighting condition of the headlight, shift position of the transmission, engine condition from the generator and vehicle speed from the combination meter using multiplex communication.

When the DTC (B2419) is output, the other BEAN communication DTCs are also output at the same time.

DTC No. DTC Detection Condition Trouble Area
B2419

  • Malfunction in multiplex communication system

  • Open or short in multiplex communication system circuit.

  • Multiplex communication system

  • Wire harness or connector

  • AFS ECU

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK MULTIPLEX COMMUNICATION SYSTEM


    1. Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally Click here.

      Result
      Result Proceed to
      MPX DTC is not output A
      MPX DTC is output B

    B

    GO TO MULTIPLEX COMMUNICATION SYSTEM Click here

    A

    REPLACE AFS ECU Click here