Signal Description, Infotainment Control Module (ICM)

General

All the values given below are between the respective terminal in column 1 and terminal #A11 in column 1 (power ground) unless otherwise stated in brackets after the table entry.

NOTE:

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

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 in %

Connector C1

Fig 1: Connector C1 Terminal Identification

Courtesy of VOLVO CARS CORPORATION

Breakout box terminal	Control module terminal	Signal type	Ignition on	Ignition off	Miscellaneous
#25	#C1-1	30 supply	U = U_bat	U = U_bat	Input signal.
#26	#C1-2	Signal reception, ICS IR			Input signal. The low-pass filter in Infotainment control module (ICM) only lets past frequencies below 2 kHz.
#27	#C1-3	Secrecy mode telephone	U = U_low	U = U_low	Input signal. When the secrecy mode signal is grounded, for example, in case of incoming calls via external accessories such as handsfree, it leads to the Infotainment control module (ICM) reducing all sounds automatically.
#28	#C1-4	Reserve			-
#29	#C1-5	Reserve			-
#30	#C1-6	Ground, ICS LED	U = U_low	U = U_low	Output signal.
#31	#C1-7	Signal ground, ICS	U = U_low	U = U_low	Output signal.
#32	#C1-8	Voltage feed IR-sensor, ICS	U =5 V	U = U_low	Output signal.
#33	#C1-9	Voltage feed, ICS LED	U=1.2 - 3.3 V	U = U_low	Output signal. PWM 225 Hz
#34	#C1-10	Control, ICS	U = 5 V	U = U_low	Input signal. Analogue input signal from ICS resistor step.
#35	#C1-11	Power ground, voltage feed	U = U_low	U = U_low	Input signal.
#36	#C1-12	LIN SWS	U = 5 V	U = U_low	Input/output signal.
#37	#C1-13	CAN H#1	U = 2.5 - 3.5 V	U = U_low	Input/output signal.
#38	#C1-14	CAN L#1	U = 2.5 - 3.5 V	U = U_low	Input/output signal.
#39	#C1-15	CAN H#2	U = 2.5 - 3.5 V	U = U_low	Input/output signal.
#40	#C1-16	CAN L#2	U = 2.5 - 3.5 V	U = U_low	Input/output signal.

ICS: Infotainment Control Switch
IR: Infra Red
LED: Light Emitting Diode
LIN: Local Interconnect Network
SWS: Single Wire Sealing

Connector B

Fig 2: Identifying Connector MOST (Optical Signal)

Courtesy of VOLVO CARS CORPORATION

TABLE

Breakout box terminal	Control module terminal	Signal type	Ignition on	Miscellaneous
-	#C2-1	Input signal, MOST	---	Optical input signal
-	#C2-2	Output signal, MOST	---	Optical output signal