Infotainment Control Module (ICM), Signal Specification

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)

Fig 1: Identifying 2-Bit Connector

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CONNECTOR A

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

Fig 2: Identifying Connector B

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CONNECTOR B

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

Fig 3: Identifying Connector C

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CONNECTOR C

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