2022 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE

Inspection Mode Ac

DTC Description and trouble part Condition Number of driving cycles on the detecting condition
P26A5 ENGINE COOLANT BYPASS VALVE "A" POSITION SENSOR CIRCUIT RANGE/PERFORMANCE [Engine Coolant Temperature 1]: 0°C (32°F) or more 2
  1. Check that the battery voltage is 12 V or more and fuel remains approx. half [20 - 40 L (5.3 - 10.6 US gal, 4.4 - 8.8 Imp gal)].
  2. Using the Subaru Select Monitor, perform the clear memory of [Engine Control System]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
  3. Start the engine and let it idle.
  4. Turn the ignition switch to OFF and wait for approx. 3 minutes or more.
  5. Read the temporary code using the Subaru Select Monitor or general scan tool. Ref. to COMMON (DIAG)>DIAGNOSTIC TROUBLE CODE (DTC) .
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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