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 MANUALSFORD2009PICKUP F350 SUPER DUTY, 2D PICKUP, 6.8 Y, RWD, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID)DTC DIAGNOSISDTC U0300: - INTERNAL CONTROL MODULE SOFTWARE INCOMPATIBILITY
2009 Ford Pickup F350 Super Duty, 2D Pickup, 6.8 Y, RWD, Standard
DTC U0300: - Internal Control Module Software Incompatibility
2009 Ford Pickup F350 Super Duty, 2D Pickup, 6.8 Y, RWD, StandardSECTION DTC U0300: - Internal Control Module Software Incompatibility
DTC U0300: - INTERNAL CONTROL MODULE SOFTWARE INCOMPATIBILITY
| Description: | This DTC indicates there are incompatible software levels within the powertrain control module (PCM) that control the electronic throttle control (ETC) system. The ETC system uses multiple microprocessors within the PCM, each having its own software level and function. The microprocessors must have the correct level of software in order to communicate and function together. | ||
| Possible Causes: | |||
| Diagnostic Aids: | Verify the PCM is at the latest calibration level. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | - | - | GO to Pinpoint Test QE . |
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.