FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Engine Wiring Harness
REMOVAL
1. Release the fuel pressure. Fuel > PROCEDURE">
2. Disconnect the ground cable from battery.

3. Remove the intake manifold. Intake Manifold > REMOVAL">
4. Disconnect the connector from the engine.
• Structural diagram 1

(1) | Tumble generator valve actuator RH | |
(2) | Engine harness connector (16P) | |
(3) | Engine harness connector (54P) | |
(4) | Throttle position sensor connector | |
(5) | Manifold absolute pressure sensor connector | |
(6) | Engine ground (2 locations) | |
(7) | Crankshaft position sensor | |
(8) | Knock sensor | |
(9) | Purge control solenoid valve connector | |
(10) | Tumble generator valve actuator LH | |
(11) | Fuel injector (#4) | |
(12) | Fuel injector (#2) | |
(13) | Engine coolant temperature sensor | |
(14) | Remove the clip from the screw hole. | |
(15) | Fuel injector (#1) | |
(16) | EGR valve | |
(17) | Fuel injector (#3) | |
(18) | Oil pressure switch | |
(19) | Engine oil temperature sensor | |
(20) | Intake camshaft position sensor LH | |
(21) | Intake oil control solenoid LH | |
(22) | Remove the clip from the screw hole. | |
(23) | Remove the clip from the screw hole. | |
(24) | Exhaust oil control solenoid LH | |
(25) | Remove the clip from the screw hole. | |
(26) | Exhaust camshaft position sensor LH | |
(27) | Remove the clip from the oval hole. | |
(28) | Exhaust camshaft position sensor RH | |
(29) | Remove the clip from the screw hole. | |
(30) | Exhaust oil control solenoid RH | |
(31) | Remove the clip from the screw hole. | |
(32) | Intake oil control solenoid RH | |
(33) | Intake camshaft position sensor RH | |
(34) | Remove the clip from the screw hole. | |
(35) | Oil level switch connector | |
• Structural diagram 2

(1) | Remove the clip from the screw hole. | |
(2) | Ignition coil No. 4 | |
(3) | Ignition coil No. 2 | |
(4) | Remove the clip from the screw hole. | |
(5) | Ignition coil No. 3 | |
(6) | Ignition coil No. 1 | |
(7) | Front oxygen (A/F) sensor | |
(8) | Rear oxygen sensor | |
5. Remove the engine wiring harness.

Inspection
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Driver Monitoring System
The Driver Monitoring System, known in some markets as DriverFocus, is an advanced
safety and personalization feature integrated into the Subaru Ascent. This intelligent
system continuously observes the driver’s behavior to detect signs of distraction
or reduced attention, while also identif ...