Test Procedure

2009 Mercury Milan Premier, 3.0 1, AWDSECTION Test Procedure
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, 2011 Ford Fusion, 2010 Mercury Milan, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
  1. DR1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) 

    Are any of the following DTCs present during PCM self-test: P0340, P0341, or P0344? 

    Yes No
    GO to  DR2. For all others, GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS .
  2. DR2 CONTINUOUS MEMORY DTCS P0340, P0341 AND P0344: CHECK IF THE ENGINE STARTS 
    • Attempt to start the engine.

    Does the engine start? 

    Yes No
    GO to  DR3. RETURN to SYMPTOM CHARTS for further direction.
  3. DR3 CLEAR AND ATTEMPT TO RETRIEVE THE DTC 
    NOTE: If DTCs P0340, P0341, or P0344 are present, ignition, alternator noise, radio frequency interference (RFI) and crankshaft position (CKP) sensor concerns should be considered.
RENDER: 1.0x

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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.