B2419

LIGHTING: LIGHTING SYSTEM: B2419: BEAN Communication Malfunction

DTC 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.






INSPECTION PROCEDURE

PROCEDURE

1. CHECK MULTIPLEX COMMUNICATION SYSTEM
(a) Use the Techstream to check if the Multiplex Communication System (MPX) is functioning normally Reading and Clearing Diagnostic Trouble Codes.
Result:






B -- GO TO MULTIPLEX COMMUNICATION SYSTEM
A -- REPLACE AFS ECU