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Signal Specification

General 

All the values given below are between the terminals stated in column 1 and terminal #C2:4 in column 2 (power ground).

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 %    
Fig 1: Identifying Connector C1
GLL142160Courtesy of VOLVO CARS CORPORATION
CONNECTOR C1

Breakout box terminal  Control module terminal  Signal type  Ignition off  Ignition on 
#31 #C1:1 - - -
#32 #C1:2 Power supply, trailer module (TRM), 30-supply U = Ubat U = Ubat
Fig 2: Identifying 5-Pin Connector
GLL104031Courtesy of VOLVO CARS CORPORATION
CONNECTOR C2

Breakout box terminal  Control module terminal  Signal type  Ignition off  Ignition on  Other 
#22 #C2:1 CAN H U = Ulow During communication U = 2.5 - 4.0 V -
#23 #C2:2 CAN L U = Ulow During communication U = 1.0 - 2.5 V -
#24 #C2:3 Stop lamp, input signal During activation U = Ubat During activation U = Ubat From the central electronic module (CEM) via the vehicle's left-hand tail lamp.
#25 #C2:4 Ground Ulow Ulow -
#26 #C2:5 - - - -
Fig 3: Identifying Connector C3
GLL142162Courtesy of VOLVO CARS CORPORATION
CONNECTOR C3

Breakout box terminal  Control module terminal  Signal type  Ignition off  Ignition on  Other 
- #C3:1 Right turn signal lamp U = Ulow During activation and normal function f = 1, 5Hz, PWM = 50 % -
- #C3:2 Charging (+12 V) (Certain markets only) U = Ulow U = Ubat Active in ignition switch position I, II and III.
- #C3:3 Stop lamp, left During activation U = Ubat During activation U = Ubat -
- #C3:4 - - - -
- #C3:5 - - - -
- #C3:6 Back-up (reversing) lamp (certain markets only) U = Ulow During activation U = Ubat -
- #C3:7 Stop lamp, right During activation U = Ubat During activation U = Ubat -
- #C3:8 Fog lamp (certain markets only) U = Ulow During activation U = Ubat -
- #C3:9 - - - -
- #C3:10 Left turn signal lamp U = Ulow During activation and normal function f = 1, 5 Hz, PWM = 50 % -
- #C3:11 - - - -
- #C3:12 Parking lamps Normally U = Ulow
During activation U = Ubat
U = Ubat -