Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2009MILAN PREMIER, 3.0 1, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1579 (CHARGING SYSTEM)DIAGNOSIS AND TESTINGDIAGNOSTIC TROUBLE CODE (DTC) CHART
2009 Mercury Milan Premier, 3.0 1, AWD
Diagnostic Trouble Code (DTC) Chart
2009 Mercury Milan Premier, 3.0 1, AWDSECTION Diagnostic Trouble Code (DTC) Chart
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE (DTC) CHART
| DTCs | Description | Source | Action |
|---|---|---|---|
| P0563 | System Voltage High | PCM | GO to PINPOINT TEST A . |
| P0563 | System Voltage High | Various Modules | GO to PINPOINT TEST A |
| P0620 | Generator Control Circuit | PCM | GO to PINPOINT TEST C . |
| P0625 | Generator Field Terminal Circuit Low | PCM | GO to PINPOINT TEST D . |
| P0626 | Generator Field Terminal Circuit High | PCM | GO to PINPOINT TEST D . |
| P065B | Generator Control Circuit Range/Performance | PCM | GO to PINPOINT TEST E . |
| All other DTCs | - | Various Modules | REFER to the Master DTC Chart DIAGNOSTIC TROUBLE CODE (DTC) CHART or the INTRODUCTION - GASOLINE MODELS . If directed to this article from another article, GO to SYMPTOM CHART . |
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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.