DTC B2430: LED Headlight LH Circuit Malfunction; DTC B2431: LED Headlight RH Circuit Malfunction [10/2015 - ]: Description

These DTCs are stored when the low beam headlights do not illuminate, or a malfunction is detected in the communication between the headlight assembly and main body ECU (multiplex network body ECU).

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B2430	LED Headlight LH Circuit Malfunction	Any of the following conditions occur after 20 seconds have elapsed since the engine switch was turned on (IG): Light control ECU LH malfunction Headlight unit LH malfunction Light control ECU LH power source and signal malfunction	H-LP relay Light control ECU LH Headlight unit LH Harness or connector Main body ECU (multiplex network body ECU)
B2431	LED Headlight RH Circuit Malfunction	Any of the following conditions occur after 20 seconds have elapsed since the engine switch was turned on (IG): Light control ECU RH malfunction Headlight unit RH malfunction Light control ECU RH power source and signal malfunction	H-LP relay Light control ECU RH Headlight unit RH Harness or connector Main body ECU (multiplex network body ECU)