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 Forester BaseFACTORY OEM SERVICE PROCEDURE
Control Valve Body: Inspection
- Check for oil leaks.
- Check that there is no deformation, cracks or other damages.
- Measure the resistance of each solenoid, sensor and ground wire.NOTE: Measurement should be performed at a temperature of 20°C (68°F).
Terminal No. Standard Primary UP solenoid 2 - Control valve body 10 - 14.2 Ω Secondary solenoid 3 - Control valve body 4.8 - 8.4 Ω F & R clutch solenoid 4 - Control valve body 3.5 - 7.1 Ω Primary DOWN solenoid 7 - Control valve body 10 - 14.2 Ω Lock-up duty solenoid 9 - Control valve body 10 - 14.2 Ω AWD solenoid 10 - Control valve body 1.5 - 4.9 Ω Oil temperature sensor 1 - 6 Approx. 2.5 kΩ [20°C (68°F)] Ground 8 - Control valve body Less than 1 Ω
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.
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