Bulkhead Wiring Harness (In Engine Compartment): Location

Connector				Connecting to
No.	Pole	Color	Area	No.	Description
B3	5	Black	B-2		Mass air flow and intake air temperature sensor
B6	2	Gray	B-2		Front ABS wheel speed sensor RH
B8	5	Gray	B-4		Front wiper motor
B10	4	Gray	B-4		Pressure switch
B11	20	Gray	B-3		T4 Transmission (AT model)
B12	8	Gray	B-3	T3	Transmission cord (Turbo H6 model)
	12	Gray	B-3	T3	Transmission cord (SOHC model)
B14	1	Black	B-3		Starter motor
B15	2	Gray	B-4		Front ABS wheel speed sensor LH
B16	2	Gray	B-4		Brake fluid level switch
B19	4	Green	B-2	T5	Rear oxygen sensor cord (turbo, 5AT, 5MT model)
		Gray	B-2	T5	Rear oxygen sensor cord (Turbo, 6MT model)
B20	16	Brown	B-3	E1	Engine wiring harness (H6 model)
B21	54	Black	B-3	E2	Engine wiring harness
B22	16	Brown	B-3	E3	Engine wiring harness (H6 model)
B24	2	Gray	B-3	T1	Back-up light switch (H4 Non-turbo model)
B25	2	Brown	B-4	T2	Neutral position switch (H4 Non-turbo model)
B128	4	Gray	B-3	T9	Transmission harness (Turbo model)
B143	20	(1)	B-4		Main fuse box (M/B)
B144	9	Brown	B-4
B145	7	Brown	B-4
B146	2	Gray	C-4		Front washer motor
B147	2	Gray	C-4		Rear washer motor
B186	8	(1)	B-4		Main fuse box (M/B)
B301	26	Black	B-2		ABS control module
B310	46	Black	B-2		VDC control module
B321	2	Black	B-2		Hood switch
B360	16	Gray	B-4	F109	Through joint connector
B361	14	Gray	B-4	F108
(1) White or natural color

Connector				Connecting to
No.	Pole	Color	Area	No.	Description
AB13	2	Yellow	C-3		Front sub sensor LH
AB16	2	Yellow	B-1		Front sub sensor RH

Fig 1: Bulkhead Wiring Harness Connectors (In Engine Compartment)

Courtesy of SUBARU OF AMERICA, INC.