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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) UAC = AC voltage in volts (V)
Ubat = Battery voltage (V) f = Frequency in Hertz (Hz)
Ulow = Voltage approximately 0 V t = Time in seconds
PWM = Pulse width modulated signal as a %    

Connector C1 

Fig 1: Identifying Connector C1
GLL141036Courtesy 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 = Ubat U = Ubat  
  #C1:2 Motor 1+, Slide motor U = Ulow / U = Ubat U=Ulow /U=Ubat Regulates front/rear adjustment of seat
  #C1:3 Motor 2+, Rake motor U=Ulow /U=Ubat U=Ulow /U=Ubat Regulates backrest angle
  #C1:4 Motor 3+, Seat height motor U=Ulow /U=Ubat U=Ulow /U=Ubat Regulates seat cushion height
  #C1:5 Motor4+, Tilt motor U=Ulow /U=Ubat U=Ulow /U=Ubat Regulates front edge angle of seat cushion
  #C1:6 Motor -, common U=Ulow /U=Ubat U=Ulow /U=Ubat M1-, M2-, M3-, M4-
  #C1:7 Ground U = Ulow U = Ulow  

Connector C2 

Fig 2: Identifying Connector C2
GLL104059Courtesy 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 = Ubat U = Ubat  
#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 = Ulow U = Ulow  
#49 #C2:7 Hall sensor 1, ground U = Ulow U = Ulow  
#50 #C2:8 Hall sensor 2, ground U = Ulow U = Ulow  
#51 #C2:9 Hall sensor 3, ground U = Ulow U = Ulow  
#52 #C2:10 Hall sensor 4, ground U = Ulow U = Ulow  
#53 #C2:11 Hall sensor 1 U=Ubat /a pulsed signal with duty=50%
f<=100 Hz		 U=Ubat /a pulsed signal with duty=50%
f<=100 Hz		 One pulse/motor rotation
Pulse high value: Ubat
Pulse low value: 7.0-9.0 V (60-70% of Ubat )
#54 #C2:12 Hall sensor 2 U=Ubat /a pulsed signal with duty=50%
f<=100 Hz		 U=Ubat /a pulsed signal with duty=50%
f<=100 Hz		 One pulse/motor rotation
Pulse high value: Ubat
Pulse low value: 7.0-9.0 V (60-70% of Ubat )
#55 #C2:13 Hall sensor 3 U=Ubat /a pulsed signal with duty=50%
f<=100 Hz		 U=Ubat /a pulsed signal with duty=50%
f<=100 Hz		 One pulse/motor rotation
Pulse high value: Ubat
Pulse low value: 7.0-9.0 V (60-70% of Ubat )
#56 #C2:14 Hall sensor 4 U=Ubat /a pulsed signal with duty=50%
f<=100 Hz		 U=Ubat /a pulsed signal with duty=50%
f<=100 Hz		 One pulse/motor rotation
Pulse high value: Ubat
Pulse low value: 7.0-9.0 V (60-70% of Ubat )
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