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 MANUALSFORD2009RANGER 2D PICKUP, 2.3 D, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 326 (CRUISE CONTROL SYSTEM - SPEED CONTROL)DIAGNOSTIC TESTSSPEED CONTROLDTC CHARTS
2009 Ford Ranger 2D Pickup, 2.3 D, Automatic
DTC Charts
2009 Ford Ranger 2D Pickup, 2.3 D, AutomaticSECTION DTC Charts
WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
PCM DIAGNOSTIC TROUBLE CODE INDEX
| DTCs | Description | Action |
|---|---|---|
| P0579 | Cruise Control Multi-Function Input A Circuit Range/Performance | Go to Pinpoint Test C . |
| P0581 | Cruise Control Multi-Function Input A Circuit High | Go to Pinpoint Test C . |
| P1572 | Brake Pedal Switch Circuit | Go to Pinpoint Test B . |
| P1703 | Brake Switch Out of Self Test Range | Go to Pinpoint Test B . |
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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.