You can find common Jeep Liberty fault codes on this page that when clicked take you to a detailed description.
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Jeep Liberty 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 Jeep Liberty has any recall notices on our sister site AutoRecalls.co, sorted by model year.View Jeep Liberty Recalls »
Common Liberty Fault Codes
These are the most common Liberty fault codes that people are searching for.
System Voltage LowLearn More
Vehicle Speed Sensor MalfunctionLearn More
Injector Circuit Malfunction - Cylinder 1Learn More
Shift Solenoid A MalfunctionLearn More
Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 1 Sensor 2Learn More
Throttle/Pedal Position Sensor/Switch A Circuit Low InputLearn More
Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 2 Sensor 2Learn More
Throttle/Pedal Position Sensor/Switch A Circuit High InputLearn More
O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)Learn More
Incorrect Immobilizer KeyLearn More
Vehicle Speed Sensor Range/PerformanceLearn More
Transmission Fluid Pressure LowLearn More
Crankshaft Position Sensor A Circuit IntermittentLearn More
Hydraulic Pressure Unit Loss of PressureLearn More
Hydraulic Pressure Sensor Circuit High InputLearn More
Leak Detection Pump Switch or Mechanical FaultLearn More
Intermittent Loss of CMP or CKPLearn More
Rad Fan Control Relay CircuitLearn More
Ignition Retard Request Duration FaultLearn More
Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction Bank 1 Sensor 1Learn More
Charging System Voltage Too LowLearn More
Vacuum Leak Found (IAC Fully Seated)Learn More
Line Pressure Solenoid SystemLearn More
Cooling System PerformanceLearn More
Engine Is Cold Too LongLearn More
Transmission System MIL FaultLearn More
No Auto Shutdown (ASD) Relay Output Voltage At PCMLearn More
Upstream Heated O2 Sensors SwappedLearn More
SCP (J1850) Invalid or Missing Data for Primary IdLearn More
TP (Mechanical) Circuit MalfunctionLearn More
Engine Oil Pressure Sensor/Switch Circuit MalfunctionLearn More
Mirror Passenger Drive Circuit FailureLearn More
Transmission Control System ElectricalLearn More
Manifold Absolute Pressure/Barometric Pressure Circuit High InputLearn More
Camshaft Position Sensor Circuit IntermittentLearn More
Serial Communication Link MalfunctionLearn More
Downstream Heated O2 Sensors SwappedLearn More
Skim Invalid KeyLearn More
- Manufacturer: Jeep
About the Liberty
The Jeep Liberty first hit the markets in 2002 as a compact SUV. There have been two generations since its release, with the second generation debuting in 2008. The model was later discontinued by Jeep in 2012.
One of the most common issues that the Liberty, along with a number of Jeep models, has faced is P0456. This code indicates that there is a small leak coming from the EVAP system.
In most cases, this code is the result of a fuel cap that is not fastened properly. A defective cap that does not provide a proper seal can also be the culprit. However, it is possible that there is a faulty component in the EVAP system allowing a leak.
Fault code P0300 is a serious code that some Liberty owners have reported. This code indicates that there have been multiple random misfires.
Owners have reported that changing the ignition coil packs and spark plugs can be a simple solution to this issue. Other than that, there is a long list of potential causes for this issue. It is important to specify the engine type as some models like the 3.7 and 4.7 L V8s have some notorious faults.
Another issue that the model has suffered from is P0420. This code likely means that the catalytic converter in the first bank of the exhaust is failing.
Both a faulty catalytic converter and upstream exhaust leaks can typically be the cause of this problem.