Subaru Legacy BN/BS (2015-2019) Service Manual: Electrical specification

Subaru Legacy BN/BS (2015-2019) Service Manual / Vehicle dynamics control (vdc) (diagnostics) / Control module i o signal / Electrical specification

NOTE:

• Terminal numbers in VDCCM&H/U connector (on the control module side) are shown in the figure.

• When the connector is removed from the VDCCM&H/U, the brake warning light (EBD warning light), ABS warning light, VDC warning light & VDC indicator light, VDC OFF indicator light, and the hill hold indicator light illuminate.

Content			Terminal No. (+) — (−)	Input/Output signal
Content			Terminal No. (+) — (−)	Measured value and measuring conditions
Power supply			5 — 46	10 — 15 V when the ignition switch is ON.
ABS wheel speed sensor	Front LH wheel	Power supply	41 — 46	0 — 18 V when the ignition switch is ON.
	Front LH wheel	Signal	40	7 — 14 mA: Rectangle waveform
	Front RH wheel	Power supply	37 — 46	0 — 18 V when the ignition switch is ON.
	Front RH wheel	Signal	36	7 — 14 mA: Rectangle waveform
	Rear LH wheel	Power supply	39 — 46	0 — 18 V when the ignition switch is ON.
	Rear LH wheel	Signal	38	7 — 14 mA: Rectangle waveform
	Rear RH wheel	Power supply	43 — 46	0 — 18 V when the ignition switch is ON.
	Rear RH wheel	Signal	42	7 — 14 mA: Rectangle waveform
Valve relay power supply			16 — 46	10 — 15 V
Motor relay power supply			33 — 46	10 — 15 V
Stop light switch			17 — 46	1.5 V or less when the stop light is OFF; 10 — 15 V when the stop light is ON.
Brake light relay power supply			27 — 46	10 — 15 V when the ignition switch is ON.
Vehicle speed output signal			24	0 ←> 12 V pulse
VDC OFF switch			1 — 46	1 - or less when the OFF switch is “ON”; 1 M- or more when the switch is “OFF”.
Parking brake switch			19	Pulse signal
Parking brake switch			20	Pulse signal
Parking brake switch			21	Pulse signal
Parking brake switch			26	Pulse signal
Rear brake caliper RH			34 — 35	Pulse signal
Rear brake caliper LH			44 — 45	Pulse signal
Hill hold switch			6 — 46	10 — 15 V when the hill hold switch is ON.
Parking brake indicator light			3 — 46	0 V when the light is on; 10 — 15 V when the light is off.
Brake fluid level switch			8 — 46	10 — 15 V when the ignition switch is ON.
Clutch stroke sensor power supply			11 — 15	4.8 — 5.2 V
Clutch stroke sensor ground			15	—
Clutch stroke sensor signal			10	Pulse signal
CAN communication line (H)			12	Pulse signal
CAN communication line (L)			13	Pulse signal
Ground			46	—

Wiring diagram

Refer to “Vehicle Dynamics Control System” in the wiring diagram. Vehicle Dynamics Control System ...

Diagnostic procedure with diagnostic trouble code (dtc)

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Other materials:

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