Structural diagram 1

Fig 1: Engine Wiring Harness Components Location - Structural Diagram 1

Courtesy of SUBARU OF AMERICA, INC.

(1)	Throttle position sensor connector
(2)	11P connector
(3)	Secure the clip to the stay.
(4)	Secure a clip to the intake manifold.
(5)	Manifold absolute pressure sensor connector
(6)	Starter adapter harness connector
(7)	Secure to the CVT pipe stay.
(8)	Transmission harness connector (20P)
(9)	Transmission harness connector (30P)
(10)	Lock the lever firmly.
(11)	Harness stay
(12)	ECM connector (64P)
(13)	ECM connector (32P)
(14)	M/B connector (76P)
(15)	Push in the lock lever securely.
(16)	Secure the harness to the clip.
(17)	Secure to the harness stay.

Tightening torque: N.m (kgf-m, ft-lb) T: 6.4 (0.7, 4.7)

Structural diagram 2

Fig 2: Engine Wiring Harness Components Location - Structural Diagram 2

Courtesy of SUBARU OF AMERICA, INC.

(1)	Purge control solenoid valve connector
(2)	Blow-by diagnosis harness connector
(3)	Secure the clip to the purge control solenoid valve bracket.
(4)	Oil pressure switch connector
(5)	Engine oil temperature sensor connector
(6)	Intake oil control solenoid connector LH
(7)	Secure the clip to the screw hole.
(8)	Front oxygen (A/F) sensor connector
(9)	Exhaust oil control solenoid connector LH
(10)	Secure the clip to the oil cooler pipe.
(11)	Oil level switch connector
(12)	Route it inside the exhaust camshaft position sensor.
(13)	Exhaust oil control solenoid connector RH
(14)	Intake oil control solenoid connector RH
(15)	Knock sensor connector RH
(16)	Engine ground
(17)	Crankshaft position sensor connector
(18)	Knock sensor connector LH
(19)	Engine coolant temperature sensor connector
(20)	Fuel injector connector (#4)
(21)	High-pressure fuel pump connector
(22)	Fuel injector connector (#2)
(23)	Fuel pressure sensor connector
(24)	Fuel injector connector (#1)
(25)	Fuel injector connector (#3)
(26)	EGR control valve connector
(27)	Secure the blow-by diagnosis connector to the hook.

Tightening torque: N.m (kgf-m, ft-lb)

T1: 6.4 (0.7, 4.7)

T2: 19 (1.9, 14.0)

Structural diagram 3

Courtesy of SUBARU OF AMERICA, INC.

(1)	Intake camshaft position sensor connector LH
(2)	Tumble generator valve actuator connector LH
(3)	Secure the clip to the screw hole.
(4)	Ignition coil connector (#4)
(5)	Ignition coil connector (#2)
(6)	Rear oxygen sensor connector
(7)	Secure the clip to the stay.
(8)	Exhaust camshaft position sensor connector LH
(9)	CPC pressure sensor connector
(10)	Intake camshaft position sensor connector RH
(11)	Exhaust camshaft position sensor connector RH
(12)	Ignition coil connector (#1)
(13)	Ignition coil connector (#3)
(14)	Tumble generator valve actuator connector RH
(15)	Secure a clip to the intake manifold.
(16)	Route the harness between the preheater hose and the intake manifold.
(17)	Secure the clip to the cam carrier.
(18)	Electronic air by-pass valve connector
(19)	Electronic wastegate valve connector
(20)	Route the harness on the engine rear side of vacuum hose.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Engine Wiring Harness