Trouble codes › By vehicle › Ford Fusion
Common check-engine codes on the Ford Fusion
2006-2020
Fusions share engines with the Escape and Explorer. Electronic throttle body problems on 2010-2012 models were common enough that Ford issued bulletins and an extended-coverage program; EcoBoost models from 2013 on share the Escape's coolant problems.
Most common: P2111, P2135, P0300, P0171, P0455, P0700.
Known problems on the Ford Fusion
- Ford electronic throttle body problems (2009-2013) (P2111, P2135, P2101, P0121)
- Ford 1.5L and 1.6L EcoBoost coolant loss, overheating and misfires (P0300, P0217, P0128)
P2111 Throttle Actuator "A" Control System - Stuck Open
P2111 means the electronic throttle is stuck more open than commanded.
On the Ford Fusion: Throttle stuck open or idle problems (P2111, P2112, P2135) on 2010-2012 Fusions: Ford issued a bulletin with a redesigned throttle body and an extended-coverage program for some vehicles. Most coverage has now expired, but ask a dealer with your VIN.
P2111: causes, can I keep driving, and what to check first →
P2135 Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Correlation
P2135 means the two throttle position sensors disagree, so the engine computer limits power; usually a failing throttle body.
On the Ford Fusion: Throttle position correlation: usually the electronic throttle body.
P2135: causes, can I keep driving, and what to check first →
P0300 Random/Multiple Cylinder Misfire Detected
P0300 means the engine is misfiring in more than one cylinder, often from worn plugs or coils, a vacuum leak or low fuel pressure.
On the Ford Fusion: Misfires: plugs and coils; on 1.5L and 1.6L EcoBoost models, misfire at cold start can be coolant getting into a cylinder; check the coolant level and recalls.
P0300: causes, can I keep driving, and what to check first →
P0171 System Too Lean (Bank 1)
P0171 means bank 1 is running lean (too much air or too little fuel), most often from a vacuum leak or a dirty MAF sensor.
On the Ford Fusion: Lean: PCV and vacuum leaks or a dirty MAF sensor.
P0171: causes, can I keep driving, and what to check first →
P0455 Evaporative Emission System Leak Detected (Large Leak)
P0455 means the EVAP system has a large leak, most often a loose, missing or bad gas cap.
On the Ford Fusion: Large EVAP leak: the capless filler neck or the purge valve.
P0455: causes, can I keep driving, and what to check first →
P0700 Transmission Control System (MIL Request)
P0700 means the transmission computer has stored its own fault code; read the transmission codes to find the real problem.
On the Ford Fusion: Transmission fault flag on the 6-speed automatic; read the transmission codes.
P0700: causes, can I keep driving, and what to check first →
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Common codes and known problems as widely reported for these model years; your vehicle may differ. Check nhtsa.gov/recalls and ask a dealer about service bulletins for your VIN, and confirm in your service information.