Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2020 Subaru Crosstrek Base, Automatic CVT TransFACTORY OEM SERVICE PROCEDURE
Engine Wiring Harness: Installation
- Set the engine wiring harness to the engine, and connect each connector. Refer to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>GENERAL DESCRIPTION>COMPONENT>ENGINE WIRING HARNESS .NOTE:
- When replacing the engine wiring harness of models except for fixed capacity A/C model with a new part, remove the tape (a), disconnect the coupling harness from the engine wiring harness. and then dispose the coupling harness.
- For installation of the coupling harness of models except for fixed capacity A/C model, refer to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>FUEL INJECTOR>INSTALLATION>FUEL INJECTOR LH .
- When installing the engine wiring harness of models except for fixed capacity A/C model, connect the coupling harness to the engine wiring harness, and then fix with the tape (a).
- If the clip is damaged, replace it with a new part.
- Before replacing the clip, put an alignment mark (a) on both engine wiring harness and clip to remove the clip, and then align to the alignment mark (a) to attach a new clip to the engine wiring harness.
- When connecting the intake camshaft position sensor RH connector, wiring is possible on either the front or back side of the harness of exhaust camshaft position sensor, etc.
- Do not cross against the harness of exhaust camshaft position sensor, etc.
- When connecting the intake camshaft position sensor LH connector, wiring is possible on either the front or back side of the harness of exhaust camshaft position sensor, etc.
- When replacing the engine wiring harness of models except for fixed capacity A/C model with a new part, remove the tape (a), disconnect the coupling harness from the engine wiring harness. and then dispose the coupling harness.
- Install the fuel insulator. Refer to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>FUEL INSULATOR>INSTALLATION .
- Install the intake manifold assembly. Refer to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>INTAKE MANIFOLD ASSEMBLY>INSTALLATION .
- Connect the ground terminal to 12V engine restart battery sensor. Refer to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
Factory Service Tools
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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.