2022 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE

Active Test: List

NOTE:
  • Before performing the active test for Auto Start Stop, execution conditions listed below must be met in each item.
  • *: The restart conditions after stopping the engine are the same as that of "Auto Start Stop restart conditions". Ref. to AUTO START STOP (DIAGNOSTICS)>DATA MONITOR>LIST .
Item Contents Execution condition
Electric oil pump control (Relay ON/OFF drive) ON/OFF of the electric oil pump relay (Auto Start Stop) can be set.
  • "Common execution condition" established
  • Electric oil pump diagnosis is normal
Electric oil pump control (Pump ON/OFF drive)
  • Except for WILDERNESS MODEL Command duty of the electric oil pump (Auto Start Stop) can be set to 10 → 70 % (for 120 seconds).
  • WILDERNESS MODEL
  • Command duty of the electric oil pump (Auto Start Stop) can be set to 10 → 55 % (for 120 seconds).
  • "Common execution condition" established
  • The value of [Coolant Temp.] is 80°C (176°F) or more
  • CAN communication is normal
Sub power supply control (ON/OFF Dr.) DC/DC converter can be set to ON (2 seconds). "Common execution condition" established
Engine stop control* Auto Start Stop can be performed without driving the vehicle. Auto Start Stop condition is established Ref. to AUTO START STOP (DIAGNOSTICS)>DATA MONITOR .

Common execution condition 

  • CAN communication for engine is normal.
  • Following conditions are established
Item Value
Ignition Switch(Auto Start Stop) ON
System Voltage(Auto Start Stop) 12.1 V or more
Engine Speed(Auto Start Stop) 0 rpm
Vehicle Speed 0 km/h (0 MPH)
Idling Stop Control Other than during control
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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