Data Communication Module (DCM)

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Content	Measuring condition	Standard
A1	-	-	-
A2	-	-	-
A3	LED GREEN	-	-
A4 ↔ Chassis ground	i-button	i button OFF → ON	1.6 kΩ or more → less than 1 Ω
A5 ↔ Chassis ground	SOS button	SOS button OFF → ON	1.6 kΩ or more → less than 1 Ω
A6	-	-	-
A7	CAN L	-	-
A8	Ignition power supply	Ignit ion switch OFF → ON	1 ess than 1 V → 9 - 16 V
A9	-	-	-
A10	Battery power supply	Always	9 - 16 V
A11	-	-	-
A12	-	-	-
A13	LED RED	-	-
A14 ↔ Chassis ground	GND	Always	1 ess than 1 Ω
A15	-	-	-
A16	-	-	-
A17	CAN H	-	-
A18	Collision detection signal	-	-
A19	MUTE	-	-
A20 ↔ Chassis ground	ACC	Ignit ion switch OFF → ACC ON	1 ess than 1 V → 9 - 16 V
B1	Front speaker input LH -	-	-
B2	Front speaker output LH	-	-
B3	Front speaker input RH	-	-
B4	Front speaker output RH	-	-
B5	MIC signal OUT	-	-
B6	MIC signal	-	-
B7	-	-	-
B8	MIC 5 V	-	-
B9	Front speaker input LH +	-	-
B10	Front speaker output LH +	-	-
B11	Front speaker input RH +	-	-
B12	Front speaker output RH +	-	-
B13 ↔ Chassis ground	MIC GND OUT	Always	L ess than 1 Ω
B14	MIC GND IN	-	-
B15	-	-	-
B16	-	-	-