Terminal	Signal type	Ignition on	Other
#A1	Antenna signal		Input signal FMsub
#A2	Antenna signal		Input signal AM/FMmain. Vehicles equipped with TMC - Phantom power supply for traffic message channel module (TMC). Vehicles without TMC - Phantom power supply for antenna amplifier.

CONNECTOR A

Scheme 6

Terminal	Signal type	Ignition on	Other
#B1	30 supply	U = U bat

CONNECTOR B

Scheme 7

Terminal	Signal type	Ignition on
#C1	MOST input signal	Optical input signal when the MOST network is activated
#C2	MOST output signal	Optical output signal when the MOST network is activated

CONNECTOR C

GENERAL

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 as a %

Scheme 8

Breakout box terminal	Control module terminal	Signal type	Ignition on	Other
#1	#1	Speaker left front door (-)	Analog output signal when the speaker is in use	0 - 19 V depending on control module output.
#2	#2	Center speaker (-)	Analog output signal when the speaker is in use	0 - 11 V depending on control module output.
#3	#3	Speaker right front door (-)	Analog output signal when the speaker is in use	0 - 19 V depending on control module output.
#4	#4	Speaker left rear door (-)	Analog output signal when the speaker is in use	0 - 19 V depending on control module output.
#5	#5	Speaker right rear door (-)	Analog output signal when the speaker is in use	0 - 19 V depending on control module output.
	#6	Activation signal	U = U bat	U=U bat , the control module is activated U=U low control module not activated
	#7
	#8	Microphone, signal ground	U = U low
#9	#9	Speaker left front door (+)	Analog output signal when the speaker is in use	0 - 19 V depending on control module output.
#10	#10	Center speaker (+)	Analog output signal when the speaker is in use	0 - 11 V depending on control module output.
#11	#11	Speaker right front door (+)	Analog output signal when the speaker is in use	0 - 19 V depending on control module output.
#12	#12	Speaker left rear door (+)	Analog output signal when the speaker is in use	0 - 19 V depending on control module output.
#13	#13	Speaker right rear door (+)	Analog output signal when the speaker is in use	0 - 19 V depending on control module output.
	#14
	#15
	#16	Microphone, signal (+)	Analog input signal when the microphone is in use

CONNECTOR C977

Scheme 9

Note. The connector is only on vehicles with headset panels.

Breakout box terminal	Control module terminal	Signal type	Ignition on	Other
#1	#1	Headphones 1, left headphone	Analog output signal when the headphones are in use
#2	#2	Headphones 1, right headphone	Analog output signal when the headphones are in use
#3	#3	Headphones 2, left headphone	Analog output signal when the headphones are in use
#4	#4	Headphones 2, right headphone	Analog output signal when the headphones are in use
	#5
	#6
#7	#7	Headphones 3, left headphone	Analog output signal when the headphones are in use
#8	#8	Headphones 3, right headphone	Analog output signal when the headphones are in use
#9	#9	Headphones 4, left headphone	Analog output signal when the headphones are in use
#10	#10	Headphones 4, right headphone	Analog output signal when the headphones are in use
	#11
	#12
#13	#13	Headphones 1, signal ground	U = U low
#14	#14	Headphones 2, signal ground	U = U low
#15	#15	Headphones 1 and 2, signal ground buttons	U = U low
#16	#16	Headphones 1, control signal buttons	Analog input signal when buttons for track selection and source are used	U = 5.0 V (no headphone panel connected) U = 4.02 V (no button activated) U = 3.16 V (previous track) U = 2.37 V (next track) U = 0.9 V (select source)
#17	#17	Headphones 2, control signal buttons	Analog input signal when buttons for track selection and source are used	U = 5.0 V (no headphone panel connected) U = 4.02 V (no button activated) U = 3.16 V (previous track) U = 2.37 V (next track) U = 0.9 V (select source)
#18	#18	Headphones 3, signal ground	U = U low
#19	#19	Headphones 4, signal ground	U = U low
#20	#20	Headphones 3 and 4, signal ground buttons	U = U low
#21	#21	Headphones 3, control signal buttons	Analog input signal when buttons for track selection and source are used	U = 5.0 V (no headphone panel connected) U = 4.02 V (no button activated) U = 3.16 V (previous track) U = 2.37 V (next track) U = 0.9 V (select source)
#22	#22	Headphones 4, control signal buttons	Analog input signal when buttons for track selection and source are used	U = 5.0 V (no headphone panel connected) U = 4.02 V (no button activated) U = 3.16 V (previous track) U = 2.37 V (next track) U = 0.9 V (select source)

CONNECTOR HEADSET PANEL

Scheme 10

Breakout box terminal	Control module terminal	Signal type	Ignition on	Other
	#1	30-feed	U bat
	#2	Ground	U low

CONNECTOR C442

Scheme 11

Breakout box terminal	Control module terminal	Signal type	Ignition on	Other
	#1	MOST input signal		Optical input signal when the MOST network is activated
	#2	MOST output signal		Optical output signal when the MOST network is activated

CONNECTOR MOST

General

All the values given below are between the respective terminal in column 1 and terminal #A2 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)	U low =	Voltage approximately 0 V
U bat =	Battery voltage (V)

Scheme 12

Terminal	Breakout box terminal	Signal type	Ignition on	Other
#A1	#45	30 supply	U = U bat
#A2	#46	Ground	U=U low

CONNECTOR A

Scheme 13

Terminal	Breakout box terminal	Signal type	Ignition on	Other
#B1	#1	Loudspeaker left front door (-)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the control module. Loudspeaker impedance: Base performance = 4 ohms High performance = 2 ohms Premium sound = 4 ohms Treble loudspeaker = 8 ohms
#B2	#2	Center loudspeaker (-)	Analog output signal when the loudspeaker is in use	0 - 11 V depending on the output from the control module. Loudspeaker impedance: Premium sound with Multimedia Module (MMM) display screen = 6 ohms Premium sound without Multimedia Module (MMM) display screen = 8 ohms
#B3	#3	Loudspeaker right front door (-)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the control module. Loudspeaker impedance: Base performance = 4 ohms High performance = 2 ohms Premium sound = 4 ohms Treble loudspeaker = 8 ohms
#B4	#4	Loudspeaker left rear door (-)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the control module Loudspeaker impedance: Base performance = 4 ohms High performance = 2 ohms Premium sound = 6 ohms D-post treble loudspeaker = 8 ohms
#B5	#5	Loudspeaker right rear door (-)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the control module. Loudspeaker impedance: Base performance = 4 ohms High performance = 2 ohms Premium sound = 6 ohms D-post treble loudspeaker = 8 ohms
#B6	#6	15 supply, activation signal for the control module	U = U bat	U=U bat , the control module is activated U=U low the control module is not activated
#B7	#7
#B8	#8	Signal ground, microphone	U=U low
#B9	#9	Loudspeaker left front door (+)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the control module. Loudspeaker impedance: Base performance = 4 ohms High performance = 2 ohms Premium sound = 4 ohms Treble loudspeaker = 8 ohms
#B10	#10	Center loudspeaker (+)	Analog output signal when the loudspeaker is in use	0 - 11 V depending on the output from the control module. Loudspeaker impedance: Premium sound with Multimedia Module (MMM) display screen = 6 ohms Premium sound without Multimedia Module (MMM) display screen = 8 ohms
#B11	#11	Loudspeaker right front door (+)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the control module. Loudspeaker impedance: Base performance = 4 ohms High performance = 2 ohms Premium sound = 4 ohms Treble loudspeaker = 8 ohms
#B12	#12	Loudspeaker left rear door (+)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the control module. Loudspeaker impedance: Base performance = 4 ohms High performance = 2 ohms Premium sound = 6 ohms D-post treble loudspeaker = 8 ohms
#B13	#13	Loudspeaker right rear door (+)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the control module. Loudspeaker impedance: Base performance = 4 ohms High performance = 2 ohms Premium sound = 6 ohms D-post treble loudspeaker = 8 ohms
#B14	#14
#B15	#15
#B16	#16	Microphone signal	Analog input signal when the microphone is in use

CONNECTOR B

Scheme 14

Note. Connector C is only used on cars fitted with a headset panel

Terminal	Breakout box terminal	Signal type	Ignition on	Other
#C1	#1	Headset 1, left-hand headset	Analog output signal when the headset is in use
#C2	#2	Headset 1, right-hand headset	Analog output signal when the headset is in use
#C3	#3	Headset 2, left-hand headset	Analog output signal when the headset is in use
#C4	#4	Headset 2, right-hand headset	Analog output signal when the headset is in use
#C5	#5
#C6	#6
#C7	#7	Headset 3, left-hand headset	Analog output signal when the headset is in use
#C8	#8	Headset 3, right-hand headset	Analog output signal when the headset is in use
#C9	#9	Headset 4, left-hand headset	Analog output signal when the headset is in use
#C10	#10	Headset 4, right-hand headset	Analog output signal when the headset is in use
#C11	#11
#C12	#12
#C13	#13	Headset 1. ground signal	U=U low
#C14	#14	Headset 2. ground signal	U=U low
#C15	#15	Headset 1 and 2, signal ground	U=U low
#C16	#16	Headset 1, control signal buttons	Analog input signal when the buttons for selecting track and sound source are in use	The voltage varies between 5 - 0.9 V depending on which button is pressed in
#C17	#17	Headset 2, control signal buttons	Analog input signal when the buttons for selecting track and sound source are in use	The voltage varies between 5 - 0.9 V depending on which button is pressed in
#C18	#18	Headset 3, signal ground	U=U low
#C19	#19	Headset 4, signal ground	U=U low
#C20	#20	Headset 3 and 4, signal ground, buttons	U=U low
#C21	#21	Headset 3, control signal buttons	Analog input signal when the buttons for selecting track and sound source are in use	The voltage varies between 5 - 0.9 V depending on which button is pressed in
#C22	#22	Headset 4, control signal buttons	Analog input signal when the buttons for selecting track and sound source are in use	The voltage varies between 5 - 0.9 V depending on which button is pressed in

CONNECTOR C

Scheme 15

Terminal	Breakout box terminal	Signal type	Ignition on	Other
#D1		MOST input signal		Optical input signal when the MOST network is activated
#D2		MOST output signal		Optical output signal when the MOST network is activated

CONNECTOR D

General

All values contained below are between the relevant terminal and signal ground, unless otherwise indicated in brackets.

Note. It is important to connect the breakout box and check the ground terminals before taking readings.

U=	DC voltage in volts (V)	U low =	Voltage approximately 0 V
U bat =	Battery voltage (V)

Scheme 16

Connector A
Terminal Breakout box	Terminal Control module	Signal type	Ignition on Active/Not active	Other
#1	#A1	15 supply	U = U bat
#2	#A2	Communication LIN	U =5 V
#3	#A3	Ground 31S	U=U low
#10	#A4
#9	#A5	Ground 31S	U=U low
#8	#A6	IR sensor	U=U bat / 0 V
#7	#A7	Communication CAN_H low speed network	During communication the voltage is 2.5-3.5 V
#6	#A8	Communication CAN L low speed network	During communication the voltage is 1.5-2.5 V
#5	#A9	Communication CAN_H low speed network	During communication the voltage is 2.5-3.5 V
#4	#A10	Communication CAN L low speed network	During communication the voltage is 1.5-2.5 V

SIGNAL TABLE

Connector B
Terminal Breakout box	Terminal Control module	Signal type	Ignition on	Other
	B1	MOST input signal		Optical input signal
	B2	MOST output signal		Optical output signal

General

All the values given below are between the terminals stated in column 1 and terminal #A8 in column 2 (power ground). This applies unless otherwise indicated in brackets.

Note. It is important to connect the breakout box and check the ground connections before measuring.

U=	DC voltage in volts (V)	U low =	Voltage approximately 0 V
U bat =	Battery voltage (V)

Connector A

Scheme 17

Connection breakout box	Control module terminal	Signal type	Ignition on	Miscellaneous
#1	#A1	Power supply	U = U bat
#2	#A2	Control signal ring break
#3	#A3	Loudspeaker right rear door (+)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#4	#A4	Loudspeaker right front door (+)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#5	#A5	Loudspeaker left front door (+)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#6	#A6	Loudspeaker left rear door (+)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#7	#A7	AUX input, left channel		Not (model year 2007)
#8	#A8	Ground	U=U low
#9	#A9	AUX input, right channel		Not (model year 2007)
#10	#A10	Loudspeaker right rear door (-)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#11	#A11	Loudspeaker right front door (-)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#12	#A12	Loudspeaker left front door (-)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#13	#A13	Loudspeaker left rear door (-)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module. Impedance loudspeaker = 4 ohms
#14	#A14	AUX-input, ground		Not (model year 2007)

SIGNAL TABLE CONNECTOR A

Connector B

Scheme 18

Terminal	Signal type	Miscellaneous
#B1	MOST input signal	Optical input signal when the MOST network is activated
#B2	MOST output signal	Optical output signal when the MOST network is activated

SIGNAL TABLE, CONNECTOR B

Connector C

Scheme 19

Terminal	Signal type	Ignition on	Miscellaneous
#C1	Antenna signal		Input signal FM Subantenna Phantom power supply for the antenna amplifier(11.0 V ±0.5 V at 13.5 V battery voltage)
#C2	Antenna signal		Input signal AM/FM Main antenna

SIGNAL TABLE, CONNECTOR C

General

All the values given below are between the terminals stated in column 1 and terminal #A8 in column 2 (power ground). This applies unless otherwise indicated in brackets.

Note. It is important to connect the breakout box and check the ground connections before measuring.

U=	DC voltage in volts (V)	U low =	Voltage approximately 0 V
U bat =	Battery voltage (V)

Connector A

Breakout box terminal	Control module terminal	Signal type	Ignition on	Miscellaneous
#1	#A1	Power supply	U = U bat
#2	#A2	Control signal ring break
#3	#A3	Loudspeaker right rear door (+)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#4	#A4	Loudspeaker right front door (+)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#5	#A5	Loudspeaker left front door (+)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#6	#A6	Loudspeaker left rear door (+)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#7	#A7	AUX input, left channel (+) Microphone, signal (+)		For Performance there is an AUX input or microphone, for other variants an AUX input.
#8	#A8	Ground	U=U low
#9	#A9	AUX input, right channel (+)		For Performance there is an AUX input or microphone. Terminal #A9 is not connected if there is a microphone.
#10	#A10	Loudspeaker right rear door (-)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#11	#A11	Loudspeaker right front door (-)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#12	#A12	Loudspeaker left front door (-)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#13	#A13	Loudspeaker left rear door (-)	Analog output signal when the loudspeaker is in use	0 - 19 V depending on the output from the Integrated Audio Module (IAM). Impedance loudspeaker = 4 ohms
#14	#A14	AUX-input, ground Microphone, signal ground		For Performance there is an AUX input or microphone, for other variants an AUX input.

SIGNAL TABLE CONNECTOR A

Connector B

Control module terminal	Signal type	Ignition on	Miscellaneous
#B1	MOST input signal		Optical input signal when the MOST network is activated
#B2	MOST output signal		Optical output signal when the MOST network is activated

SIGNAL TABLE, CONNECTOR B

Connector C

Control module terminal	Signal type	Ignition on	Miscellaneous
#C1	Antenna signal		Input signal FM Subantenna Phantom power supply for the antenna amplifier(11.0 V ±0.5 V at 13.5 V battery voltage)
#C2	Antenna signal		Input signal AM/FM Main antenna

SIGNAL TABLE, CONNECTOR C

Connector D (from structure week 200846)

Scheme 20

Control module terminal	Signal type	Miscellaneous
#D1	Power supply	+5 V to the connected USB device.
#D2	Data (-)
#D3	Data (+)
#D4	Signal ground

SIGNAL TABLE, CONNECTOR D

General

All the values given below are between the respective terminal in column 1 and terminal #A5 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)	U low =	Voltage approximately 0 V
U bat =	Battery voltage (V)

Scheme 21

Terminal	Breakout box terminal	Signal type	Ignition on	Other
#A1	#21	15-supply (model years 2004 and 2005). 30-supply (model year 2006 -)	U = U bat	Supplied with power (12 V) from the relay on the CEM (model years 2004 and 2005).
#A2	#22
#A3	#23
#A4	#24
#A5	#25	Ground	U=U low

CONNECTOR A

Scheme 22

Terminal	Breakout box terminal	Signal type	Ignition on	Other
#B1	#1	Color signal (red), screen	Analog signal when a red color signal is used	0.714 Vp-p
#B2	#2	Color signal (green), display	Analog signal when a green color signal is used	0.714 Vp-p
#B3	#3
#B4	#4	Serial bus to the display	Digital signal	Half duplex, start-stop synchronizer, 2400 bps
#B5	#5		Digital signal	38 kHz carrier wave when the remote control is pressed
#B6	#6	Color signal (blue), screen	Analog signal when a green color signal is used	0.714 Vp-p
#B7	#7	Screen ground video signals	U low
#B8	#8	Composite sync, display screen	Analog signal	0-5 V
#B9	#9
#B10	#10	Video signal, display screen	Analog signal	1 Vp-p ± 0.2V
H		Screen ground

CONNECTOR B

Terminal	Breakout box terminal	Signal type	Ignition on	Other
#C1		MOST input signal		Optical input signal
#C2		MOST output signal		Optical output signal

CONNECTOR C

General

All the values given below are between the respective terminal in column 1 and terminal #A5 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)	U low =	Voltage approximately 0 V
U bat =	Battery voltage (V)

Connector A

Scheme 23

Control module terminal	Signal type	Ignition on	Other
#A1	30-feed	U = U bat	Power supply
#A2
#A3
#A4
#A5	Ground	U=U low

SIGNAL TABLE CONNECTOR A

Connector B

Scheme 24

Breakout box terminal	Control module terminal	Signal type	Ignition on	Other
#1	#B1	Colour signal (red), screen	Analogue signal when a red colour signal is used	0.714 Vp-p
#2	#B2	Colour signal (green), display	Analogue signal when a green colour signal is used	0.714 Vp-p
#3	#B3
#4	#B4	Remote control, signal from display screen to Multimedia module (MMM)
#5	#B5
#6	#B6	Colour signal (blue), screen	Analogue signal when a green colour signal is used	0.714 Vp-p
#7	#B7	Screen ground video signals	U low
#8	#B8	RGB-synch, display screen	Analogue signal	0-5 V
#9	#B9
#10	#B10	Video signal, display screen	Analogue signal	1 Vp-p ± 0.2V
H		Screen ground

SIGNAL TABLE, CONNECTOR B

Connector C

Scheme 25

Control module terminal	Signal type	Ignition on	Other
#C1	MOST input signal		Optical input signal
#C2	MOST output signal		Optical output signal

SIGNAL TABLE, CONNECTOR C

Connector D

Scheme 26

Control module terminal	Signal type	Ignition on	Other
#D1	GPS signal		Antenna signal
#D2	Screen

SIGNAL TABLE, CONNECTOR D

Connector E

Scheme 27

Control module terminal	Signal type	Ignition on	Other
#E1	FM signal in (TMC)		Antenna signal
#E2	FM signal out (TMC)		Antenna signal

SIGNAL TABLE, CONNECTOR E

General

All the values given below are between the respective terminal in column 1 and terminal #A2 in column 2 (power ground) unless otherwise stated in brackets after the table entry.

Note. It is important to check ground terminals before taking readings.

U=	DC voltage in volts (V)	U low =	Voltage approximately 0 V
U bat =	Battery voltage (V)

Scheme 28

Terminal	Signal type	Ignition on	Other
#A1	30 supply	U = U bat
#A2	15 supply	U = U bat	Relay voltage
#A3
#A4	Ground	U=U low

CONNECTOR A

Scheme 29

Terminal	Breakout box terminal	Signal type	Ignition on	Other
#B1		MOST input signal	Optical input signal when the MOST network is activated
#B2		MOST output signal	Optical output signal when the MOST network is activated

CONNECTOR B

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 as a %

GENERAL

Connector C784

Scheme 30

Breakout box terminal	Control module terminal	Signal type	Ignition on	Ignition off	Other
	#C784-1	30-feed	U = U bat	U = U bat
	#C784-2	Ground, 30 supply	U=U low	U=U low

SIGNAL TABLE

Connector C782

Scheme 31

Breakout box terminal	Control module terminal	Signal type	Ignition on	Ignition off	Other
	#C782-1	Input, antenna

SIGNAL TABLE

Connector C786

Breakout box terminal	Control module terminal	Signal type	Ignition on	Ignition off	Other
	#C786-1	Output, optical
	#C786-2	Input, optical

SIGNAL TABLE

General

All the values given below are between the terminals stated in column 1 and terminal #A:6 in column 2 (power ground). This applies unless otherwise indicated in brackets.

Note. It is important to connect the breakout box and check the ground terminals before taking readings.

There may be several connections and connectors between the control module and components.

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 %

Breakout box terminal	Control module terminal	Signal type	Ignition on	Idle	Miscellaneous
#1	#A:1	Activation signal and diagnostic signal for ON CALL and SOS switch	Not depressed = 5 V Depressed ON CALL = approx. 1.5 V Depressed SOS = 0.9 V	Not depressed = 5 V Depressed ON CALL = approx. 1.5 V Depressed SOS = 0.9 V	Only Volvo On Call
#2	#A:2	Diagnostic signal for switch ON CALL and SOS	U= 4.50-4.75 V	U= 4.50-4.75 V	Only Volvo On Call
#3	#A:3	Voltage supply, SOS switch illumination	U= 0-12 V	U= 0-12 V	Only Volvo On Call
#4	#A:4	Voltage supply, ON CALL switch illumination	U= 0-12 V	U= 0-12 V	Only Volvo On Call
#5	#A:5	+30-feed	U = U bat	U = U bat
#6	#A:6	Power ground	U = U low	U = U low
#7	#A:7	Handset, voltage feed	U = U bat	U = U bat
#8	#A:8	Handset, cradle signal			Difficult to measure
#9	#A:9
#10	#A:10
#11	#A:11	CAN (L)	U = 1.5 - 2.5 V	U = 1.5 - 2.5 V	During communication
#12	#A:12	CAN (H)	U = 2.0 - 3.5 V	U = 2.0 - 3.5 V	During communication
#13	#A:13	Signal ground, switch ON CALL and SOS	U = U low	U = U low	Only Volvo On Call
#14	#A:14	Signal ground, auxiliary microphone	U = U low	U = U low	Only Volvo On Call
#15	#A:15	Signal, spare microphone	U = 5 V	U = 5 V	Only Volvo On Call
#16	#A:16
#17	#A:17	Impact cable from SRS	Pulse width modulated signal = 50% Normal value f = 9-11 Hz Collision registered f = 250 Hz for up to 5 seconds	Pulse width modulated signal = 50% Normal value f = 9-11 Hz Collision registered f = 250 Hz for up to 5 seconds
#18	#A:18	Handset, ground	U = U low	U = U low
#19	#A:19	Handset, microphone signal	Alternating voltage at sound in microphone	Alternating voltage at sound in microphone	Difficult to measure
#20	#A:20	Handset, speaker signal	Alternating voltage at sound in speaker	Alternating voltage at sound in speaker	Difficult to measure
#21	#A:21
#22	#A:22

SIGNAL TABLE CONNECTOR A

Scheme 32

Breakout box terminal	Control module terminal	Signal type	Ignition on	Idle	Miscellaneous
#21	#B:1	Clock signal to SIM-card	Digital signal	Digital signal
#22	#B:2	Signal ground, SIM-card	U = U low	U = U low
#23	#B:3	Voltage feed, SIM-card
#24	#B:4	Communication cable, SIM-card	Digital signal	Digital signal
#25	#B:5	Control signal, SIM-card	Digital signal	Digital signal
#26	#B:6	Diagnostic cable, SIM-card	Digital signal	Digital signal	0 = SIM holder inserted = 1057 ohms 1 = SIM holder missing = 0 ohms

SIGNAL TABLE, CONNECTOR B

Scheme 33

Breakout box terminal	Control module terminal	Signal type	Ignition on	Idle	Miscellaneous
	#C:1	Signal, telephone antenna	Antenna signal	Antenna signal
	#C:2	Ground, telephone antenna	U = U low	U = U low

SIGNAL TABLE, CONNECTOR C

Scheme 34

Breakout box terminal	Control module terminal	Signal type	Ignition on	Idle	Miscellaneous
	#D:1	MOST input signal	Optical input signal when the MOST network is activated	Optical input signal when the MOST network is activated
	#D:2	MOST signal	Optical output signal when the MOST network is activated	Optical output signal when the MOST network is activated

SIGNAL TABLE, CONNECTOR D

Breakout box terminal	Control module terminal	Signal type	Ignition on	Idle	Miscellaneous
	#E:1	Signal, GPS antenna	Antenna signal	Antenna signal
	#E:2	Ground, GPS antenna	U = U low	U = U low

SIGNAL TABLE, CONNECTOR E

Scheme 35

Breakout box terminal	Control module terminal	Signal type	Ignition on	Idle	Miscellaneous
#22	#1	Handset, microphone signal	Alternating voltage at sound in microphone	Alternating voltage at sound in microphone	Difficult to measure
#23	#2	Handset, speaker signal	Alternating voltage at sound in speaker	Alternating voltage at sound in speaker	Difficult to measure
#24	#3	Handset, ground	U = U low	U = U low
#25	#4	Handset, cradle signal			Difficult to measure
#26	#5	Handset, voltage feed	U= approx. 10 V	U= approx. 10 V

SIGNAL TABLE CONNECTOR HANDSET

Scheme 36

Breakout box terminal	Control module terminal	Signal type	Ignition on	Idle
#13	#1	Signal, spare microphone	U = 5 V	U = 5 V
#14	#2	Signal ground, auxiliary microphone	U = U low	U = U low
#15	#3	Voltage supply, SOS switch illumination	U= 0-12 V	U= 0-12 V
#16	#4	Voltage supply, ON CALL switch illumination	U= 0-12 V	U= 0-12 V
#17	#5	Activation signal and diagnostic signal for ON CALL and SOS switch	Not depressed = 5 V Depressed ON CALL = approx. 1.5 V Depressed SOS = 0.9 V	Not depressed = 5 V Depressed ON CALL = approx. 1.5 V Depressed SOS = 0.9 V
#18	#6	Diagnostic signal for switch ON CALL and SOS	U= 4.50-4.75 V	U= 4.50-4.75 V
#19	#7	Signal ground, switch ON CALL and SOS	U = U low	U = U low

SIGNAL TABLE, CONNECTOR VOLVO ON CALL SWITCH

General

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 as a %

Connector C1

Scheme 37

Control module terminal	Signal type	Ignition on
#C1-1	Reserve
#C1-2	Reserve
#C1-3	Reserve
#C1-4	Reserve
#C1-5	Reserve
#C1-6	Reserve
#C1-7	Reserve
#C1-8	Reserve
#C1-9	Reserve
#C1-10	Reserve
#C1-11	Reserve
#C1-12	Reserve
#C1-13	Reserve
#C1-14	Reserve
#C1-15	Ground, power supply	U=U low
#C1-16	Ground, power supply	U=U low
#C1-17	Reserve
#C1-18	Reserve
#C1-19	Reserve
#C1-20	Reserve
#C1-21	Reserve
#C1-22	Reserve
#C1-23	Reserve
#C1-24	Reserve
#C1-25	Reserve
#C1-26	Reserve
#C1-27	Reserve
#C1-28	Reserve
#C1-29	Reserve
#C1-30	Reserve
#C1-31	Power supply, 30-supply	U = U bat
#C1-32	Power supply, 30-supply	U = U bat

CONNECTOR C1

Connector C2

Breakout box terminal	Control module terminal	Signal type	Ignition on
	#C2-1	MOST input signal	Optical input signal when the MOST network is activated
	#C2-2	MOST output signal	Optical output signal when the MOST network is activated

CONNECTOR C2

General

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

Note. It is important to connect the breakout box and check the ground terminals before taking readings.

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 as a %

Scheme 38

Control module terminal	Signal type	Ignition on
#1	Ground	U low
#2	30 supply In the XC90 and S40 (04-) the handsfree box is powered via the infotainment relay.	U bat
#3
#4	Loudspeaker signal (+)	Alternating current when there is sound in the loudspeaker
#5	15 supply	U=12 V
#6	Radio mute signal	During a call U=U low U=12 V otherwise
#7	Loudspeaker signal (-)	Alternating current when there is sound in the loudspeaker
#8

CONNECTOR HANDSFREE BOX

Scheme 39

Control module terminal	Signal type	Ignition on	Idle	Other
#1	Handsfree antenna	Handsfree antenna signal
#2	Antenna ground	U low

ANTENNA CONNECTOR

Scheme 40

Control module terminal	Signal type	Ignition on	Idle	Other
#1	Microphone	Alternating current when there is sound in the microphone
#2	Signal ground, microphone	U low

MICROPHONE CONNECTOR

General

All the values given below are between the terminals stated in column 1 and terminal #A6 in column 2 (power ground). This applies unless otherwise indicated in brackets.

Note. It is important to connect the breakout box and check the ground terminals before taking readings.

For further information about

connecting the breakout box, see «CONNECTING THE BREAKOUT BOX, PHONE MODULE (PHM) (2005-2008)»(ref-466611-S42159610532012042500000) .
Checking ground connection, see «CHECKING THE VOLTAGE/GROUND TERMINAL, PHONE MODULE (PHM) (2005-2008)»(ref-466611-S11003016392012042500000)

There may be several connections and connectors between the control module and components.

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 %

Terminal breakout box	Terminal control module	Signal type	Ignition on	Idle	Other
#1	#A1	Diagnostic signal for the ON CALL and SOS switches	U=2-5 V	U=2-5 V	Only Volvo on Call
#2	#A2	Input signal from the ON CALL and SOS switches	ON CALL pressed in U=2.6 V, SOS pressed in U=2 V, otherwise U=5 V	ON CALL pressed in U=2.6 V, SOS pressed in U=2 V, otherwise U=5 V	Only Volvo on Call
#3	#A3	Power supply, lighting SOS switch	U=7 V	U=7 V	Only Volvo on Call
#4	#A4	Power supply, lighting ON CALL switch	U=7 V	U=7 V	Only Volvo on Call
#5	#A5	+30 supply	U bat	U bat
#6	#A6	Power ground	U low	U low
#7	#A7	Handset, power supply	U bat	U bat
#8	#A8	Handset, cradle signal	U=3.34 V when the handset is used, U=1.90 V when the handset is not used.	U=3.34 V when the handset is used, U=1.90 V when the handset is not used.
#9	#A9
#10	#A10
#11	#A11	CAN (L)	Digital signal	Digital signal
#12	#A12	CAN (H)	Digital signal	Digital signal
#13	#A13	Signal ground, ON CALL and SOS switches	U low	U low	Only Volvo on Call
#14	#A14	Signal ground, reserve microphone	U low	U low	Only Volvo on Call
#15	#A15	Reserve microphone	U =5 V	U =5 V	Only Volvo on Call
#16	#A16
#17	#A17	Collision cable from the SRS	U=12 V when an SRS component is activated, otherwise U=0 V	U=12 V when an SRS component is activated, otherwise U=0 V
#18	#A18	Handset, ground	U low	U low
#19	#A19	Handset, microphone	Alternating current when there is sound in the microphone	Alternating current when there is sound in the microphone	Difficult to measure
#20	#A20	Handset, speaker	Alternating current when there is sound in the loudspeaker	Alternating current when there is sound in the loudspeaker	Difficult to measure
#21	#A21
#22	#A22

SIGNAL TABLE CONNECTOR A, PHONE MODULE (PHM)

Scheme 41

Terminal breakout box	Terminal control module	Signal type	Ignition on	Idle
#21	#B1	Clock signal to the SIM card	Quadratic signal	Quadratic signal
#22	#B2	Signal ground, SIM card	U low	U low
#23	#B3	Power supply, SIM card	U=2.8 V	U=2.8 V
#24	#B4	Communication cable, SIM card	Pulsed signal	Pulsed signal
#25	#B5	Control signal, SIM card	Pulsed signal	Pulsed signal
#26	#B6	Diagnostic lead, SIM card	U low	U low

SIGNAL TABLE CONNECTOR B, PHONE MODULE (PHM)

Scheme 42

Terminal breakout box	Terminal control module	Signal type	Ignition on	Idle	Other
	#C1	Carphone antenna	Antenna signal carphone	Antenna signal carphone
	#C2	Antenna ground	U low	U low

SIGNAL TABLE CONNECTOR C, PHONE MODULE (PHM)

Terminal breakout box	Terminal control module	Signal type	Ignition on	Idle	Other
	#D1	MOST input signal	Optical input signal when the MOST network is activated	Optical input signal when the MOST network is activated
	#D2	MOST output signal	Optical output signal when the MOST network is activated	Optical output signal when the MOST network is activated

SIGNAL TABLE CONNECTOR D, PHONE MODULE (PHM)

Terminal breakout box	Terminal control module	Signal type	Ignition on	Idle
#21	#1	Clock signal to the SIM card	Quadratic signal	Quadratic signal
#22	#2	Signal ground, SIM card	U low	U low
#23	#3	Power supply, SIM card	U=2.8 V	U=2.8 V
#24	#4	Communication cable, SIM card	Pulsed signal	Pulsed signal
#25	#5	Control signal, SIM card	Pulsed signal	Pulsed signal
#26	#6	Diagnostic lead, SIM card	U low	U low

SIGNAL TABLE CONNECTOR SIM CARD HOLDER

Scheme 43

Terminal breakout box	Terminal control module	Signal type	Ignition on	Idle
#13	#1	Reserve microphone	U =5 V	U =5 V
#14	#2	Signal ground, reserve microphone	U low	U low
#15	#3	Power supply, lighting SOS switch	U=7 V	U=7 V
#16	#4	Power supply, lighting ON CALL switch	U=7 V	U=7 V
#17	#5	Diagnostic signal for the ON CALL and SOS switches	U=2-5 V	U=2-5 V
#18	#6	Input signal from the ON CALL and SOS switches	U=2-5 V	U=2-5 V
#19	#7	Signal ground, ON CALL and SOS switches	U low	U low

SIGNAL TABLE CONNECTOR SWITCH VOLVO ON CALL

Terminal breakout box	Terminal control module	Signal type	Ignition on	Idle	Other
#21	#1	Handset, microphone	Alternating current when there is sound in the microphone	Alternating current when there is sound in the microphone	Difficult to measure
#22	#2	Handset, speaker	Alternating current when there is sound in the microphone	Alternating current when there is sound in the microphone	Difficult to measure
#23	#3	Handset, ground	U low	U low
#24	#4	Handset, cradle signal	U=3.34 V when the handset is used, U=1.90 V when the handset is not used.	U=3.34 V when the handset is used, U=1.90 V when the handset is not used.
#25	#5	Handset, power supply	U bat	U bat

SIGNAL TABLE CONNECTOR HANDSET

Note. It is important to connect the breakout box and check the ground terminals before taking readings.

U=	DC voltage in volts (V)	U low =	Voltage approximately 0 V
U bat =	Battery voltage (V)

Scheme 44

Terminal	Breakout box terminal	Signal type	Ignition on
#A1	#51	Ground	U=U low
#A2	#52
#A3	#53	15 supply	U = U bat
#A4	#54

CONNECTOR A, SUBWOOFER MODULE (SUB)

Terminal	Breakout box terminal	Signal type	Ignition on	Other
#B1		MOST input signal	Optical input signal when the MOST network is activated
#B2		MOST output signal	Analog output signal when the loudspeaker is in use

CONNECTOR B, AUDIO MODULE (AUD)

General

Note. It is important to check ground terminals before taking readings.

U=	DC voltage in volts (V)	U low =	Voltage approximately 0 V
U bat =	Battery voltage (V)

Scheme 45

Terminal	Signal type	Ignition on	Other
#A1	Antenna signal	0-4.75 V	Pulse

CONNECTOR A

Scheme 46

Terminal	Signal type	Ignition on
#B1	30 supply	U = U bat
#B2
#B3
#B4
#B5	Ground	U=U low

CONNECTOR B

Terminal	Signal type	Ignition on	Other
#C1	MOST input signal	Optical input signal when the MOST network is activated
#C2	MOST output signal	Optical output signal when the MOST network is activated

CONNECTOR C

General

Note. It is important to check ground terminals before taking readings.

U=	DC voltage in volts (V)	U low =	Voltage approximately 0 V
U bat =	Battery voltage (V)

Terminal	Signal type	Ignition on	Other
#A1	Antenna signal		Input signal TMC/FMsub. Phantom power supply for the antenna amplifier.
#A2	Antenna signal		Output signal FMsub to the AM/FM tuner module (AFM).

CONNECTOR A

Terminal	Signal type	Ignition on	Other
#B1	30 supply	U = U bat

CONNECTOR B

Terminal	Signal type	Ignition on	Other
#C1	MOST input signal	Optical input signal when the MOST network is activated
#C2	MOST output signal	Optical output signal when the MOST network is activated

CONNECTOR C

Media, Communication and Navigation - Specifications, Electrical/electronic: Specifications Volvo V50 I рестайлинг

SIGNAL SPECIFICATION

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