Ford Fiesta Fault Codes
You can find common Ford Fiesta fault codes on this page that when clicked take you to a detailed description.
You can also type in the fault code you are getting below to find a more detailed description.
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Ford Fiesta Recalls
When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.
You can check to see if your Ford Fiesta has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Ford Fiesta Recalls »
Common Fiesta Fault Codes
These are the most common Fiesta fault codes that people are searching for.
Heated Oxygen Sensor (H02S) Heater Control Circuit Bank 1 Sensor 1Learn More Fixes
Catalyst System Efficiency Below Threshold (Bank 1)Learn More Fixes
HO2S Heater Resistance Bank 1 Sensor 2 (PCM)Learn More
Vehicle Speed Sensor MalfunctionLearn More
System readiness test not completeLearn More
System Too Lean at Idle DTCLearn More Fixes
PATS Transceiver Module Signal Is Not ReceivedLearn More
ECU Is DefectiveLearn More Fixes
Ignition Run/Acc Circuit FailureLearn More
EIC Switch-1 Assembly Circuit Short To BatteryLearn More
Air Bag Driver Circuit OpenLearn More
ABS Hydraulic Pump Motor Circuit FailureLearn More
ABS Functions Temporarily DisabledLearn More
Glow Plug/Heater Circuit A Malfunction More details...Learn More Fixes
Mass or Volume Air flow Circuit High InputLearn More
Throttle/Pedal Position Sensor/Switch A / B Voltage CorrelationLearn More Fixes
Control ModuleLearn More
Invalid Data Received From ECM/PCMLearn More
Lost Communication With ECM/PCM "A"Learn More Fixes
Lost Communication With Anti-Lock Brake System (ABS) Control ModuleLearn More
Lost Communication With Restraints Control ModuleLearn More
Invalid Data Received – Anti-Lock Brake System (ABS) Control ModuleLearn More
Control Module Communication Bus "A" OffLearn More Fixes
Lost Communication With Instrument Panel Cluster (IPC) Control ModuleLearn More Fixes
Lost Communication With Starter / Generator Control ModuleLearn More
Transmission Control System MalfunctionLearn More Fixes
Evaporative Emissions System Small Leak DetectedLearn More Fixes
ECM/PCM Processor FaultLearn More Fixes
Evaporative Emission System High Purge FlowLearn More Fixes
Clutch Actuator Circuit LowLearn More
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor BLearn More Fixes
Cylinder 1 Misfire DetectedLearn More Fixes
Evaporative Emission Control System Purge Control Valve Circuit OpenLearn More
Ignition Coil A Primary/Secondary Circuit MalfunctionLearn More
Engine Coolant Temperature Circuit High InputLearn More
Camshaft Position Sensor Circuit MalfunctionLearn More Fixes
Cylinder 4 Misfire DetectedLearn More Fixes
Intake Manifold Runner Control (IMRC )Learn More
Shift Solenoid E Stuck OnLearn More
Sec.Air Inj.Sys.Circ Short to B+Learn More
Engine Torque MonitoringLearn More
Cylinder Head Temperature Sensor Detected Engine Overheating ConditionLearn More
System Too Lean (Bank 1)Learn More Fixes
Catalyst System Efficiency Below Threshold (Bank 2)Learn More Fixes
Random/Multiple Cylinder Misfire DetectedLearn More Fixes
System Too Lean (Bank 2)Learn More Fixes
Throttle Actuator Control System Stuck ClosedLearn More Fixes
Fuel Rail Pressure Sensor Circuit High InputLearn More Fixes
Data Mismatch (receive data does not match what was expected)Learn More
Ignition Key-In Circuit FailureLearn More Fixes
Pressure Transducer Main / Primary Input Circuit FailureLearn More
Diesel Particulate Filter Restriction - Soot AccumulationLearn More
Diesel Particulate Filter Efficiency Below Threshold Bank 1Learn More
Turbo/Supercharger Boost System PerformanceLearn More
System Gross Leak Evaporative EmissionLearn More Fixes
Manifold Absolute Pressure/Barometric Pressure Circuit High InputLearn More
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor ALearn More Fixes
Intake Air Temperature Circuit High InputLearn More Fixes
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)Learn More Fixes
Intake Camshaft Position Timing - Over-Retarded (Bank 1)Learn More Fixes
Cylinder 2 Misfire DetectedLearn More Fixes
O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1)Learn More Fixes
EGR Valve PositionLearn More
Turbo / Super Charger UnderboostLearn More Fixes
Lost Communication With Body Control ModuleLearn More
CAN Communication Bus FaultLearn More
High Speed CAN Communication BusLearn More Fixes
Lost Communication with TCMLearn More
Lost Communication With Glow Plug Control ModuleLearn More Fixes
Evaporative Emission Control System Vent Control Circuit MalfunctionLearn More Fixes
Exhaust Pressure Sensor MalfunctionLearn More
Bank 2-Sensor 1 InternalLearn More
Bank 1, Long TermLearn More
EGR Valve Circ ShortLearn More
Sec.Air Inj.Sys.CircLearn More
- Manufacturer: Ford
About the Fiesta
The Fiesta supermini first made its debut way back in 1977, making it one of the oldest nameplates still in the Ford lineup today. Since its release, there have been a total of seven generations to hit the markets, with the latest of these debuting in 2017.
Sitting just under the Ford Focus and F-150, it is also one of the best-selling models from the American manufacturer.
Competition for the Fiesta typically comes from the top contenders in the heavily packed supermini class. The most notable of these include the SEAT Ibiza, Opel Corsa, and of course, the Volkswagen Polo.
Over the years, fault code P0030 is a problem that owners have commonly reported. This code indicates that there is an issue with the heater circuit for the first oxygen sensor.
Of course, replacing a faulty oxygen sensor is one of the main solutions for this problem, but owners have also reported that these types of issues can be a result of the Fiesta’s not being fully charged.
The oxygen sensors on the Fiesta are known to have some issues. Fault code P0054 is another sign of this. This code also indicates that there is an issue with the downstream oxygen sensor.
This is typically fixed by simply replacing the faulty oxygen sensor. It can also be a good idea to check the sensor circuit for any electrical faults.
Another issue that a number of Ford models can suffer from is P0420. This code indicates that the catalytic converter is likely failing.
This can happen to a lot of older Fiestas as a result of wear and tear. Owners have also reported that replacing the oxygen sensors is another potential fix for this problem. If the previous codes are logged in conjunction, the sensor codes should be fixed first.