2021 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE

Transmission Harness: Installation

  1. Install a new O-ring.
    NOTE: Apply CVTF to the O-rings.
  2. Set the transmission harness, and install the clip.
  3. Install the bolt which holds the transmission harness.

    Tightening torque:Β 

    5 N.m (0.5 kgf-m, 3.7 ft-lb)

  4. Install the control valve body. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Control Valve Body>INSTALLATIONΒ .
  5. Remove the ST (STAND ASSY).
  6. Install the torque converter. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Torque Converter>INSTALLATIONΒ .
  7. Install the harness stay to the transmission harness connector and inhibitor harness connector.
  8. Connect the harness connectors to the inhibitor switch, secondary pressure sensor, primary speed sensor, front wheel speed sensor and secondary speed sensor.
  9. Connect the transmission ground.

    Tightening torque:Β 

    13 N.m (1.3 kgf-m, 9.6 ft-lb)

  10. Install the transmission body. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transmission Assembly>INSTALLATIONΒ .
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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.