2020 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE

Battery Sensor: Installation

CAUTION:
  • If the battery terminal is worn and the terminal section is loose, replace it with a new battery.
  • After connecting the ground terminal to the battery sensor, the initial diagnosis of the electronic throttle control is conducted by the vehicle. Therefore, wait for 10 seconds or more after turning the ignition switch to ON, and then start the engine.
  1. Install the battery sensor.
    1. Clean and degrease the battery terminal (A) and the inside (B) of the battery sensor terminal.
      CAUTION: When wiping, be careful not to deform the battery sensor.
      G13224906Courtesy of SUBARU OF AMERICA, INC.
    2. Loosen the battery sensor nut.
      CAUTION:
      • The end of the bolt (a) of the battery sensor is crimped. Therefore, do not loosen the nut (b) to the crimped portion.
      • Make sure that the seat (c) of battery sensor is fully in contact with the rotation stopper (d).
      G13224907Courtesy of SUBARU OF AMERICA, INC.
    3. Set the battery sensor to the battery terminal, and tighten the nut.
      CAUTION:
      • Set the battery sensor straight to the battery terminal.
      • Insert until the battery terminal upper end (a) exceeds the height of the battery sensor terminal upper end (b).

      Tightening torque: 

      3.4 N.m (0.3 kgf-m, 2.5 ft-lb)

      G13224908Courtesy of SUBARU OF AMERICA, INC.
      G13224905Courtesy of SUBARU OF AMERICA, INC.
  2. Connect the connector and ground terminal to the battery sensor.

    Tightening torque: 

    7.5 N.m (0.8 kgf-m, 5.5 ft-lb)

    G13224903Courtesy of SUBARU OF AMERICA, INC.
  3. Apply a thin coat of grease in the application range shown in the figure.
    G13224911Courtesy of SUBARU OF AMERICA, INC.
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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.