The driver's MICU controls the lighting system based upon the input signals from each combination light switch.

	Input	Output
Driver's MICU	Combination light switch (OFF) Combination light switch (ON) Combination light switch (POSITION) Combination light switch (PASSING) Combination light switch (DIMMER)	Position light Headlight (high beam, low beam passing) Taillights Headlight (Back-up) to passenger's MICU
B-CAN		Position light signal Headlight (high beam, low beam, passing) signals