2019 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE

Control Valve Body: Inspection

  1. Check for oil leaks.
  2. Check that there is no deformation, cracks or other damages.
  3. Measure the resistance of each solenoid, sensor and ground wire.
    NOTE: Measurement should be performed at a temperature of 20°C (68°F).
    G10218634Courtesy of SUBARU OF AMERICA, INC.
    • Solenoid 
      Solenoid Terminal No. Standard
      Primary UP solenoid 2 - Control valve body 10 - 13.5 Ω
      Secondary solenoid 3 - Control valve body 5 - 7 Ω
      F&R clutch solenoid 4 - Control valve body 4 - 6 Ω
      Primary DOWN solenoid 7 - Control valve body 10 - 13.5 Ω
      Lock-up duty solenoid 9 - Control valve body 10 - 13.5 Ω
      AWD solenoid 10 - Control valve body 2 - 4.5 Ω
    • Sensor 
      Sensor Terminal No. Standard At 20°C (68°F)
      Oil temperature sensor 1 - 6 Approx. 2.5 kΩ
    • Ground 
      Terminal No. Standard
      8 - Control valve body Less than 1 Ω
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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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