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Signal Specification

All values given below are between the terminals stated in column 1 (terminal in the breakout box) and terminal C2-#2 (ground). This applies unless otherwise indicated in brackets.

NOTE:

It is important to connect the breakout box and check ground terminals before reading off.

U= DC voltage in volts (V) UAC = Alternating current in volts (V)
Ubat = Battery voltage f = Frequency in Hertz (Hz)
Ulow = Voltage approximately 0 V %duty = Duty cycle (pulse ratio) as a percentage (%)
t = Time in milliseconds (ms)    
GLL106235Courtesy of VOLVO CARS CORPORATION
CONNECTOR C2, #1-#2

Terminal in the breakout box  Terminal  Signal type  Ignition on  Other 
31 C2-#1  
15-supply (power supply via rear relay box)
Ubat Ignition in position II
32 C2-#2 Ground Ulow -
GLL105601Courtesy of VOLVO CARS CORPORATION
CONNECTOR C1, #1-#30

Terminal in the breakout box  Terminal  Signal type  Ignition on  Other 
1 C1-#1 Return cable, left rear solenoid Ulow -
2 C1-#2 Power supply, left rear solenoid Ulow With the car stationary
3 C1-#3 Power supply, background lighting in the switch Ubat Pulse width modulation (PWM) signal
4 C1-#4 Return cable, right rear solenoid Ulow -
5 C1-#5 Power supply, right rear solenoid Ulow With the car stationary
6 C1-#6 Power supply, left front solenoid Ulow With the car stationary
7 C1-#7 Return cable, left front solenoid Ulow -
8 C1-#8 Return cable, right front solenoid Ulow -
9 C1-#9 Power supply, right front solenoid Ulow With the car stationary
10 C1-#10 Signal, car body left front acceleration sensor U≈2 V Stationary car body. The signal varies between 0 and 5 V when the car body is in motion
11 C1-#11 Power supply, position indication 2 (Sport) in the switch Lamp lit: U = Ubat
Lamp not lit: U ≈ Ulow
-
12 C1-#12 Signal
height sensor, left front
U ≈ 2.5 V The signal varies between 0.5 and 4.5 V depending on the vertical position of the car body
13 C1-#13 Power supply 1, sensor 5 V -
14 C1-#14 Signal, rear right height sensor U ≈ 2.5 V The signal varies between 0.5 and 4.5 V depending on the vertical position of the car body
15 C1-#15 Communication CAN_L high speed network 1.5-2.5 V -
16 C1-#16 Communication CAN_H high speed network 2.5-3.5 V -
17 C1-#17 Signal, car body left rear acceleration sensor U≈2 V Stationary car body. The signal varies between 0 and 5 V when the car body is in motion
18 C1-#18 - - -
19 C1-#19 Ground 1, sensor Ulow
 
-
20 C1-#20 - - -
21 C1-#21 Ground, switch Ulow
 
-
22 C1-#22 Signal, car body right front acceleration sensor U≈2 V Stationary car body. The signal varies between 0 and 5 V when the car body is in motion
23 C1-#23 Ground 2, sensor Ulow
 
-
24 C1-#24 Signal from switch U = 0 - 5 V depending on the selected driving mode. -
25 C1-#25 Power supply 2, sensor 5 V -
26 C1-#26 Power supply, position indication 1 (Comfort) in the switch Lamp lit: U = Ubat
Lamp not lit: U ≈ Ulow
-
27 C1-#27 Signal
height sensor
right front
U ≈ 2.5 V The signal varies between 0.5 and 4.5 V depending on the vertical position of the car body
28 C1-#28 Signal, height sensor
left rear
U ≈ 2.5 V The signal varies between 0.5 and 4.5 V depending on the vertical position of the car body
29 C1-#29 Power supply, position indication 3 (Advanced) in the switch Lamp lit: U = Ubat
Lamp not lit: U ≈ Ulow
 
30 C1-#30 - - -