DTC    B2419    BEAN Communication Malfunction

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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 DTCs are output at the same time.

DTC No.
DTC Detection Condition
Trouble Area
B2419
  1. Malfunction in multiplex communication system
  2. Open or short in multiplex communication system circuit.
  1. Multiplex communication system
  2. Wire harness or connector
  3. AFS ECU

INSPECTION PROCEDURE

1.INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)

  1. Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally.
    Result 
    Result
    		Proceed to
    MPX DTC is not output
    		A
    MPX DTC is output
    		B



B
Go to MULTIPLEX COMMUNICATION SYSTEM
A

REPLACE AFS ECU