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.
2017 Ford C-Max Energi TitaniumFACTORY OEM SERVICE PROCEDURE
Fuel System DTCS
DTC INDEX
| DTC | Description | Action |
|---|---|---|
| P04B0 | Refueling Valve (RV) circuit | GO to Pinpoint Test B |
| P04B4 | Refueling Valve (RV) stuck closed | GO to Pinpoint Test C |
| P144B | Evaporative Emission System Secondary Purge Vapor Line Restricted/Blocked | GO to Pinpoint Test A |
| P24C0 | Evaporative Emission System Leak Detection Pump Switching Valve Stuck On | GO to Pinpoint Test A |
| P2418 | Evaporative Emission Control System Switching Valve Control Circuit/Open | GO to Pinpoint Test A |
| P2451 | Evaporative Emission System Switching Valve Stuck Closed | GO to Pinpoint Test A |
| All other DTCs | - | REFER to: Electronic Engine Controls - Hybrid Electric Vehicle (HEV) . REFER to: Electronic Engine Controls - Plug-In Hybrid Electric Vehicle (PHEV) . |
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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