You can find common Ford Explorer 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.
Search Ford Explorer Codes
Do you know the fault code already? Enter it in the box below and hit "Search Codes".
Ford Explorer 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 Explorer has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Ford Explorer Recalls »
Common Explorer Fault Codes
These are the most common Explorer fault codes that people are searching for.
Sec.Air Inj.Sys.Circ Short to B+Learn More
O2 Sensor Signal Stuck Lean Bank 1 Sensor 1Learn More
Passenger Sid, Side mount Airbag Circuit OpenLearn More
Pressure Transducer Main / Primary signal FaultedLearn More
Misfire Detected On Startup (First 1000 Revolutions)Learn More
Pressure Control Solenoid BLearn More
Control ModuleLearn More
Exhaust Gas Recirculation Flow Excessive DetectedLearn More
Manifold Absolute Pressure/Barometric Pressure Circuit High InputLearn More
Cylinder Head Temperature Sensor Detected Engine Overheating ConditionLearn More
System readiness test not completeLearn More
ACCS to PCM High During Self-TestLearn More
Bank 2-Sensor 1 InternalLearn More
Accelera.Pedal Pos.SensorLearn More
Bank 1, Long TermLearn More
Idle Speed ControlLearn More
Data Mismatch (receive data does not match what was expected)Learn More
EIC Switch-1 Assembly Circuit Short To BatteryLearn More
Pressure Transducer Main / Primary Input Circuit FailureLearn More
ABS Hydraulic Pump Motor 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
EGR Valve PositionLearn More
Lost Communication With Body Control ModuleLearn More
CAN Communication Bus FaultLearn More
Invalid Data Received – Anti-Lock Brake System (ABS) Control ModuleLearn More
Invalid Data Received From ECM/PCMLearn More
Lost Communication with TCMLearn More
Exhaust Pressure Sensor MalfunctionLearn More
EGR Valve Circ ShortLearn More
Sec.Air Inj.Sys.CircLearn More
Cylinder #3 High To Low Side ShortLearn More
Cylinder #1 High To Low Side ShortLearn More
Cylinder #2 High To Low Side ShortLearn More
Theft Detected - Engine DisabledLearn More
Cylinder #4 High To Low Side ShortLearn More
Boost Pressure Contr.ValveLearn More
Engine coolant temperatureLearn More
O2 Sensor Heating Circ. Bank 1-Sensor 1 Output too LowLearn More
Engine Torque Monitoring 2 Control Limint ExceededLearn More
Accelera.Pedal Pos.SensorLearn More
- Manufacturer: Ford
About the Explorer
The Explorer first made its debut in 1990. The model has shown a great deal of success as it has remained on the market since then. Since its release, there have been a total of six generations, with the latest version hitting the markets in 2020.
The model represents the first ever 4-door SUV to be released by the American car maker. This happened when it was deemed the successor to the Ford Bronco. Since the re-release of the Bronco, these two Ford offerings often compete with one another.
One of the most common issues that the model has faced over the years is fault code P0401. This code indicates that there is insufficient flow in the EGR system.
This is usually caused by the EGR valve not opening sufficiently during its operation. Owners have reported that this can commonly be caused by a faulty EGR valve. This can also be caused by a dirty valve.
Fault code P0171 is another issue that the Explorer has been known to suffer from. This code indicates that the first bank of the engine is running lean.
In addition to this, owners have reported that P2125 is also logged somewhat commonly. This code indicates that the signal from the oxygen sensor has remained lean for an excessive period of time rather than alternating between rich and lean.
It is very possible that these two codes are linked if they are logged at the same time.
Running lean is typically caused by an excessive amount of air entering the intake or too little fuel entering the cylinders. Some owners have commonly reported leaks in the vacuum lines.