DTC B2439-49: Headlight LH Circuit Internal Electronic Failure; DTC B243A-49: Headlight RH Circuit Internal Electronic Failure [06/2020 - 12/2021]: Description
These DTCs are stored when the low beam headlights do not illuminate, or a communication malfunction is detected between the light control LED ECU and main body ECU (multiplex network body ECU).
HINT:
DTC B2439-49 or DTC B243A-49 may also be stored if a headlight cooling fan is malfunctioning. In this case, the light control LED ECU will dim or turn off the malfunctioning low beam headlight.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| B2439-49 | Headlight LH Circuit Internal Electronic Failure | Detection condition:
Malfunction Status:
Malfunction Time:
|
|
Main Body |
| B243A-49 | Headlight RH Circuit Internal Electronic Failure | Detection condition:
Malfunction Status:
Malfunction Time:
|
|
Main Body |