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Signal Specification

General 

All the values given below are between the terminals stated in column 1 and terminal #C1:8 in column 2 (power ground).

NOTE:

It is important to connect the breakout box and check the ground connections before starting to measure.

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 %    
Fig 1: Identifying Parking Assistance Module (PAM) Connector
GLL101922Courtesy of VOLVO CARS CORPORATION
CONNECTOR C1

Breakout box terminal  Control module terminal  Signal type  Ignition off  Ignition on (position II)  Miscellaneous 
#1 #C1:1 Power supply, parking assistance module (PAM), 15-supply U = Ulow U = Ubat Via relay 15-feed, electrical distribution box luggage compartment.
#2 #C1:2 - - - -
#3 #C1:3 - - - -
#4 #C1:4 - - - -
#5 #C1:5 - - - -
#6 #C1:6 - - - -
#7 #C1:7 CAN L U = Ulow During communication U = 1.0 - 2.5 V. -
#8 #C1:8 Ground U = Ulow U = Ulow -
#9 #C1:9 - - - -
#10 #C1:10 - - - -
#11 #C1:11 - - - -
#12 #C1:12 - - - -
#13 #C1:13 - - - -
#14 #C1:14 CAN H U = Ulow During communication U = 2.5 - 4.0 V. -
#15 #C1:15 - - - -
#16 #C1:16 - - - -
Fig 2: Identifying Connector C2, Center Terminal
GLL146705Courtesy of VOLVO CARS CORPORATION
CONNECTOR C2, CENTER TERMINAL

Breakout box terminal  Control module terminal  Signal type  Ignition off  Ignition on (position II)  Miscellaneous 
#21 #C2:1 Signal ground, front parking sensor U = Ulow U = Ulow -
#22 #C2:2 Voltage supply, front parking sensors U = Ulow U = Ubat -
#23 #C2:3 - - - -
#24 #C2:4 - - - -
#25 #C2:5 Signal, parking sensor outer left front U = Ulow U = 8.8 -16.0V -
#26 #C2:6 Signal, parking sensor inner left front U = Ulow U = 8.8 -16.0V -
#27 #C2:7 Signal, parking sensor inner right front U = Ulow U = 8.8 -16.0V -
#28 #C2:8 Signal, parking sensor outer right front U = Ulow U = 8.8 -16.0V -
#29 #C2:9 - - - -
#30 #C2:10 - - - -
#31 #C2:11 - - - -
#32 #C2:12 - - - -
Fig 3: Identifying Connector C3
GLL101920Courtesy of VOLVO CARS CORPORATION
CONNECTOR C3

Breakout box terminal  Control module terminal  Signal type  Ignition off  Ignition on (position II)  Miscellaneous 
#41 #C3:1 - - - -
#42 #C3:2 Signal, parking sensor inner right rear U = Ulow U = 8.8 -16.0V -
#43 #C3:3 Signal, parking sensor inner left rear U = Ulow U = 8.8 -16.0V -
#44 #C3:4 Signal, parking sensor outer right rear U = Ulow U = 8.8 -16.0V -
#45 #C3:5 Signal, parking sensor outer left rear U = Ulow U = 8.8 -16.0V -
#46 #C3:6 - - - -
#47 #C3:7 - - - -
#48 #C3:8 Signal ground, rear parking sensors U = Ulow U = Ulow -
#49 #C3:9 - - - -
#50 #C3:10 - - - -
#51 #C3:11 Voltage supply, rear parking sensors U = Ulow U = Ubat -
#52 #C3:12 - - - -