Signal Specification

General

All the values given below are between the respective terminal in column 1 and terminal # C1:7 in column 2 (power ground) unless otherwise stated in brackets after the table entry.

NOTE:

It is important to connect the breakout box and check the ground terminals before taking readings.

U=	DC voltage in volts (V)	U_AC =	AC voltage in volts (V)
U_bat =	Battery voltage (V)	f =	Frequency in Hertz (Hz)
U_low =	Voltage approximately 0 V	t =	Time in seconds
PWM =	Pulse width modulated signal as a %

Connector C1

Fig 1: Identifying Connector C1

Courtesy of VOLVO CARS CORPORATION

SIGNAL TABLE

Connector C1
Breakout box terminal	Control module terminal	Signal type	Ignition off Inactive/active	Ignition on Inactive/active	Other
	#C1:1	Power supply	U = U_bat	U = U_bat
	#C1:2	Motor 1+, Slide motor	U = U_low / U = U_bat	U=U_low /U=U_bat	Regulates front/rear adjustment of seat
	#C1:3	Motor 2+, Rake motor	U=U_low /U=U_bat	U=U_low /U=U_bat	Regulates backrest angle
	#C1:4	Motor 3+, Seat height motor	U=U_low /U=U_bat	U=U_low /U=U_bat	Regulates seat cushion height
	#C1:5	Motor4+, Tilt motor	U=U_low /U=U_bat	U=U_low /U=U_bat	Regulates front edge angle of seat cushion
	#C1:6	Motor -, common	U=U_low /U=U_bat	U=U_low /U=U_bat	M1-, M2-, M3-, M4-
	#C1:7	Ground	U = U_low	U = U_low

Connector C2

Fig 2: Identifying Connector C2

Courtesy of VOLVO CARS CORPORATION

Connector C2
Breakout box terminal	Control module terminal	Signal type	Ignition off Inactive/active	Ignition on Inactive/active	Other
#43	#C2:1	Signal supply	U = U_bat	U = U_bat
#44	#C2:2	Reserve	-	-
#45	#C2:3	Communication control module, CAN L	1.5 - 2.5 V	1.5 - 2.5 V
#46	#C2:4	Communication control module, CAN H	2.5 - 3.5 V	2.5 - 3.5 V
#47	#C2:5	Reserve	-	-
#48	#C2:6	Ground	U = U_low	U = U_low
#49	#C2:7	Hall sensor 1, ground	U = U_low	U = U_low
#50	#C2:8	Hall sensor 2, ground	U = U_low	U = U_low
#51	#C2:9	Hall sensor 3, ground	U = U_low	U = U_low
#52	#C2:10	Hall sensor 4, ground	U = U_low	U = U_low
#53	#C2:11	Hall sensor 1	U=U_bat /a pulsed signal with duty=50% f<=100 Hz	U=U_bat /a pulsed signal with duty=50% f<=100 Hz	One pulse/motor rotation Pulse high value: U_bat Pulse low value: 7.0-9.0 V (60-70% of U_bat )
#54	#C2:12	Hall sensor 2	U=U_bat /a pulsed signal with duty=50% f<=100 Hz	U=U_bat /a pulsed signal with duty=50% f<=100 Hz	One pulse/motor rotation Pulse high value: U_bat Pulse low value: 7.0-9.0 V (60-70% of U_bat )
#55	#C2:13	Hall sensor 3	U=U_bat /a pulsed signal with duty=50% f<=100 Hz	U=U_bat /a pulsed signal with duty=50% f<=100 Hz	One pulse/motor rotation Pulse high value: U_bat Pulse low value: 7.0-9.0 V (60-70% of U_bat )
#56	#C2:14	Hall sensor 4	U=U_bat /a pulsed signal with duty=50% f<=100 Hz	U=U_bat /a pulsed signal with duty=50% f<=100 Hz	One pulse/motor rotation Pulse high value: U_bat Pulse low value: 7.0-9.0 V (60-70% of U_bat )