2015 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE

Inspection Mode J

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
DTC Description & trouble part Condition
P0746 PRESSURE CONTROL SOLENOID "A" PERFORMANCE/STUCK OFF -
P0747 PRESSURE CONTROL SOLENOID "A" STUCK ON -
P2723 PRESSURE CONTROL SOLENOID "E" PERFORMANCE/STUCK OFF -

Diagnostic procedure: 

  1. Check the readiness code of [Transmission] using Subaru Select Monitor and confirm that the diagnosis is not completed. Ref. to TRANSMISSION (DIAGNOSTICS)>ALL READINESS DIAGNOSTIC CODE(S) 
  2. After starting the engine, set the ATF temperature to 20°C (68°F) or more.
  3. Drive in any driving pattern for 20 minutes. (Include driving at a constant legal speed (for 20 seconds) at least once.)
  4. Turn the ignition switch to OFF, and wait for 30 seconds or more.
  5. Start the engine.
    NOTE:

    Repeat two driving cycles in this driving pattern. 

  6. Check the readiness code of [Transmission] using Subaru Select Monitor and confirm that the diagnosis is completed. Ref. to TRANSMISSION (DIAGNOSTICS)>ALL READINESS DIAGNOSTIC CODE(S) 
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.