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.
2011 Ford Expedition 4WDFACTORY OEM SERVICE PROCEDURE
Starting System DTCS
PCM DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Action |
|---|---|---|---|
| P0512 | Starter Request Circuit - Circuit has Power With the Ignition in the OFF Position | PCM | Carry out the Ignition Switch Component Test. Refer to ENGINE CONTROLS - COMPONENT TESTING for component testing. If necessary, REPLACE the ignition switch. If the ignition switch passed the component test, REPAIR circuit CDC35 (BU/WH) for a short to power. |
| P0705 | Transmission Range (TR) Sensor Circuit Error | Transmission | Refer to the applicable information for the procedure. |
| P1260 | Theft Detected, Vehicle Immobilized | PCM | Refer to the DTC Chart in ANTI-THEFT SYSTEM - PASSIVE ANTI-THEFT SYSTEM (PATS) . |
| P1707 | Park/Neutral Position (PNP) Switch Circuit Failure | Transmission | Refer to the applicable information under AUTOMATIC TRANSMISSION EXTERNAL CONTROLS -- EXPEDITION for the procedure. |
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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