F

Make

Ford Trouble Codes and Known Issues

Ford sells a very wide range, from the Fiesta and Focus to the Ranger and the F-150. Its gasoline V8 trucks use coil-on-plug ignition and variable valve timing, and the 2011 to 2016 Fiesta and Focus used a dual-clutch automatic transmission (PowerShift) that generates a lot of questions.

Most searched models: F-150, Ranger, Escape, Explorer, Expedition, Fusion, Focus, Fiesta, EcoSport and Territory.

Common problems on Ford vehicles

  • PowerShift dual-clutch transmission on the Fiesta and Focus (2011 to 2016): shudder, slipping and module faults.
  • Coils and spark plugs on the Triton V8s (F-150, Expedition), with plugs that are hard to remove on some engines.
  • EGR DPFE sensor and its hoses on 2000s engines.
  • Canister purge valve and EVAP system.

Tips for diagnosing a Ford

  • On many Fords the purge valve sticks open and causes hard starting after refueling.
  • Check whether your PowerShift Fiesta or Focus has software updates or an extended clutch warranty.

Do you have several codes at once? Use the free multi-code diagnosis for Ford: it sorts the codes by priority and shows these make-specific notes. Below are the codes with documented quirks on Ford vehicles.

Make notes are a guide based on well-known common failures. Always confirm with the manufacturer's documentation for your engine and model year.

Codes with notes for Ford

42 codes

CodeMeaningSystemSeverity
B1318 Low Supply Voltage at Body Control Module Body, Comfort and Passive Safety Medium
C0035 Left Front Wheel Speed Circuit Malfunction Chassis: Brakes, Suspension and Steering High
P0101 Mass or Volume Air Flow Circuit Range/Performance Air Metering and Fuel Delivery Medium
P0113 Intake Air Temperature Sensor 1 Circuit High Air Metering and Fuel Delivery Low
P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) Emissions Control: Catalyst, EVAP and EGR Medium
P0171 System Too Lean (Bank 1) Air Metering and Fuel Delivery Medium
P0174 System Too Lean (Bank 2) Air Metering and Fuel Delivery Medium
P0300 Random/Multiple Cylinder Misfire Detected Ignition and Misfires High
P0401 Exhaust Gas Recirculation Flow Insufficient Detected Emissions Control: Catalyst, EVAP and EGR Medium
P0420 Catalyst System Efficiency Below Threshold (Bank 1) Emissions Control: Catalyst, EVAP and EGR Medium
P0443 Evaporative Emission Control System Purge Control Valve Circuit Emissions Control: Catalyst, EVAP and EGR Low
P0455 Evaporative Emission System Leak Detected (Large Leak) Emissions Control: Catalyst, EVAP and EGR Low
P0456 Evaporative Emission System Leak Detected (Very Small Leak) Emissions Control: Catalyst, EVAP and EGR Low
P0500 Vehicle Speed Sensor A Malfunction Idle, Speed and Auxiliary Systems High
P0700 Transmission Control System Malfunction (Request for MIL Illumination) Automatic Transmission and Traction High
P0740 Torque Converter Clutch Circuit Malfunction Automatic Transmission and Traction High
P1100 Barometric Pressure Sensor Circuit (Toyota) Air Metering and Fuel Delivery Low
P1130 Air Fuel Ratio Sensor Circuit Range/Performance (Toyota, Bank 1 Sensor 1) Air Metering and Fuel Delivery Medium
P1131 HO2S11 Lack of Switching, Sensor Indicates Lean (Ford, Bank 1) Air Metering and Fuel Delivery Medium
P1150 Air Fuel Ratio Sensor Circuit Range/Performance (Toyota, Bank 2 Sensor 1) Air Metering and Fuel Delivery Medium
P1151 HO2S21 Lack of Switching, Sensor Indicates Lean (Ford, Bank 2) Air Metering and Fuel Delivery Medium
P1233 Fuel Pump Control Module Disabled or Offline (Ford) Fuel Injection and Fuel Pressure High
P1235 Fuel Pump Control Out of Range (Ford) Fuel Injection and Fuel Pressure High
P1260 Theft Detected, Vehicle Immobilized (Ford) Engine Computer and Output Circuits High
P1270 Engine RPM or Vehicle Speed Limiter Reached (Ford) Idle, Speed and Auxiliary Systems Low
P1285 Cylinder Head Overtemperature Detected (Ford) Idle, Speed and Auxiliary Systems Critical
P1299 Cylinder Head Overtemperature Protection Active (Ford) Idle, Speed and Auxiliary Systems Critical
P1400 EGR DPFE Sensor Circuit Low Signal (Ford) Emissions Control: Catalyst, EVAP and EGR Low
P1405 DPFE Sensor Inlet Hose Disconnected or Plugged (Ford) Emissions Control: Catalyst, EVAP and EGR Low
P1406 EGR Valve Pintle Position Circuit (GM) Emissions Control: Catalyst, EVAP and EGR Medium
P1450 Unable to Bleed Up Fuel Tank Vacuum (Ford) Emissions Control: Catalyst, EVAP and EGR Low
P1506 Idle Air Control Overspeed Error (Ford) Idle, Speed and Auxiliary Systems Low
P1507 Idle Air Control Underspeed Error (Ford) Idle, Speed and Auxiliary Systems Medium
P1639 Vehicle ID Block Corrupted or Not Programmed (Ford) Engine Computer and Output Circuits Medium
P1711 Transmission Fluid Temperature Sensor Out of Self-Test Range (Ford) Automatic Transmission and Traction Low
P1744 Torque Converter Clutch System Performance (Ford) Automatic Transmission and Traction High
P1783 Transmission Overtemperature Condition (Ford) Automatic Transmission and Traction High
P2008 Intake Manifold Runner Control Circuit/Open (Bank 1) Air Metering and Fuel Delivery Low
P2097 Post Catalyst Fuel Trim System Too Rich (Bank 1) Air Metering and Fuel Delivery Medium
P2111 Throttle Actuator Control System - Stuck Open Idle, Speed and Auxiliary Systems High
U0073 Control Module Communication Bus A Off Module Communication Network High
U0426 Invalid Data Received From Vehicle Immobilizer Control Module Module Communication Network Medium

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