Headlight Leveling Control Unit

Courtesy of HONDA, U.S.A., INC.

Terminal number	Terminal name	Description	Signal
1	H/L ADJ SSR	Detects H/L ADJ SSR signal	With vehicle in ON mode: about 0.5 - 4.5 V (depending on vehicle height)
2	H/L ADJ SSF	Detects H/L ADJ SSF signal	With vehicle in ON mode: about 0.5 - 4.5 V (depending on vehicle height)
3	H/L ADJ SG	Ground for suspension stroke sensor	Less than 0.2 V at all times
4	H/L ACT GND	Ground for headlight leveling motor	Less than 0.2 V at all times
5	H/L ACT VCC	Drives headlight leveling motor	With vehicle in ON mode and headlight switch ON: about battery voltage
6	IG1 OPTION	IG1 power source	With vehicle in ON or START mode: about battery voltage
7	B-CAN_H	Communication line	- - -
8	B-CAN_L	Communication line	- - -
9	Not used	- - -	- - -
10	H/L ADJ SV	Outputs H/L ADJ SV signal	With vehicle in ON mode: about 5 V
11	H/L ACT SIG	Outputs headlight leveling motor signal	With vehicle in ON mode and combination light switch ON: about 1.2 - 10.8 V (depending on vehicle height and vehicle speed)
12	GND	Ground for headlight leveling control unit	Less than 0.2 V at all times