Engine Wiring Harness

2.0 L model (exploded view 1)

Fig 1: Exploded View Of Engine Wiring Harness - 2.0 L Model

Courtesy of SUBARU OF AMERICA, INC.

(1)	Purge control solenoid valve connector
(2)	Secure the clip to the purge control solenoid valve bracket.
(3)	Throttle position sensor connector
(4)	Manifold absolute pressure sensor connector
(5)	Multi-wire connector
(6)	ECM connector (For installation and removal, refer to "Engine Control Module (ECM)".) Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>ENGINE CONTROL MODULE (ECM) .
(7)	M/B connector
(8)	High-pressure fuel pump connector
(9)	Pass the harness of high-pressure fuel pump on the upper side of fuel delivery pipes.
(10)	Knock sensor connector RH
(11)	Crankshaft position sensor connector
(12)	Knock sensor connector LH
(13)	Fuel injector connector (#4)
(14)	Engine coolant temperature sensor connector
(15)	Fuel injector connector (#2)
(16)	Secure a clip to the water tank pipe assembly.
(17)	Fuel injector connector (#1)
(18)	Fuel pressure sensor connector
(19)	Fuel injector connector (#3)
(20)	Push in the lock lever securely.
(21)	Secure the harness to the clip.
(22)	Secure the harness case to the harness stay.
(23)	Engine ground (CVT model)
(24)	Harness stay (CVT model)
(25)	Transmission harness connector (CVT model)
(26)	Transmission harness connector (MT model)
(27)	Harness stay (MT model)
(28)	Engine ground (MT model)

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

T: 19 (1.9, 14.0)

* (e) shows wiring of the fixed displacement compressor CVT model fuel injector connector (#2).

2.0 L model (exploded view 2)

Courtesy of SUBARU OF AMERICA, INC.

(1)	EGR control valve connector
(2)	Oil pressure switch (Refer to "Oil Pressure Switch" of "LUBRICATION" for installation for Crosstrek model. Ref. to LUBRICATION (H4DO (EXCEPT FOR HEV))>OIL PRESSURE SWITCH>INSTALLATION.)
(3)	Engine oil temperature sensor connector
(4)	Intake oil control solenoid connector LH
(5)	Secure the clip to the screw hole.
(6)	Exhaust oil control solenoid connector LH
(7)	Exhaust camshaft position sensor connector LH
(8)	Oil level switch connector
(9)	Exhaust camshaft position sensor connector RH
(10)	Exhaust oil control solenoid connector RH
(11)	Intake oil control solenoid connector RH
(12)	Intake camshaft position sensor connector LH
(13)	Tumble generator valve actuator connector LH
(14)	Ignition coil connector (#4)
(15)	Ignition coil connector (#2)
(16)	Tumble generator valve actuator connector RH
(17)	Ignition coil connector (#3)
(18)	Ignition coil connector (#1)
(19)	Intake camshaft position sensor connector RH
(20)	Secure a clip to the intake manifold assembly.
(21)	PCV hose
(22)	Route under the PCV hose.
(23)	Clip
(24)	The gap after the stopper is inserted must be 3 mm (0.12 in) or less.

2.5 L model (exploded view 1)

Courtesy of SUBARU OF AMERICA, INC.

(1)	Throttle position sensor connector
(2)	Multi-wire connector
(3)	Guide it over the top of fuel delivery pipe.
(4)	Manifold absolute pressure sensor connector
(5)	Purge control solenoid valve connector
(6)	Secure the clip to the fuel pipe.
(7)	PCV hose
(8)	Guide it over the top of PCV hose.
(9)	Clip
(10)	Insert the clip so that the end of the clip comes in contact with the welded rib of the intake manifold assembly. (The permissible lift amount of the clip is up to 5 mm (0.197 in))
(11)	M/B connector
(12)	ECM connector (For installation and removal, refer to "Engine Control Module (ECM)". Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>ENGINE CONTROL MODULE (ECM) .
(13)	Push in the lock lever securely.
(14)	Secure the harness to the clip.
(15)	Secure the harness case to the harness stay.

2.5 L model (exploded view 2)

Courtesy of SUBARU OF AMERICA, INC.

(1)	Thermo control valve ASSY connector
(2)	Transmission harness connectors
(3)	Fuel injector connector (#4) coupling harness connector
(4)	Knock sensor LH side coupling harness connector
(5)	Secure the clip to the screw hole.
(6)	High-pressure fuel pump connector
(7)	Fuel injector connector (#2)
(8)	Crankshaft position sensor connector
(9)	Fuel injector connector (#1)
(10)	Fuel pressure sensor connector
(11)	Fuel injector connector (#3)
(12)	Knock sensor RH side coupling harness connector
(13)	Secure the clip to the harness case.
(14)	Engine wiring harness stay
(15)	Secure the clip to the harness case.
(16)	Secure the clip to the engine wiring harness stay.
(17)	Engine ground (fastened together with harness case)

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

T1: 6.4 (0.7, 4.7)

T2: 19 (1.9, 14.0)

2.5 L model (exploded view 3)

Courtesy of SUBARU OF AMERICA, INC.

(1)	Outlet engine coolant temperature sensor connector
(2)	EGR control valve connector
(3)	Oil pressure switch
(4)	Engine oil temperature sensor connector
(5)	Intake oil control solenoid connector LH
(6)	Secure the clip to the screw hole.
(7)	Exhaust oil control solenoid connector LH
(8)	Inlet engine coolant temperature sensor connector
(9)	Oil level switch connector
(10)	Exhaust oil control solenoid connector RH
(11)	Intake oil control solenoid connector RH
(12)	Tumble generator valve actuator connector LH
(13)	Ignition coil connector (#4)
(14)	Ignition coil connector (#2)
(15)	Exhaust camshaft position sensor connector LH
(16)	Intake camshaft position sensor connector LH
(17)	Intake camshaft position sensor connector RH
(18)	Exhaust camshaft position sensor connector RH
(19)	Ignition coil connector (#1)
(20)	Ignition coil connector (#3)
(21)	Tumble generator valve actuator connector RH
(22)	Secure a clip to the intake manifold assembly.