Jeep Liberty Fault Codes
You can find common Jeep Liberty 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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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.
Evaporative Emissions System Small Leak DetectedLearn More Fixes
Random/Multiple Cylinder Misfire DetectedLearn More Fixes
Catalyst System Efficiency Below Threshold (Bank 1)Learn More Fixes
System Gross Leak Evaporative EmissionLearn More Fixes
Transmission Control System MalfunctionLearn More Fixes
System Voltage LowLearn More
Evaporative Emission Control System Leak DetectedLearn More Fixes
Cylinder 4 Misfire DetectedLearn More Fixes
Evaporative Emission Control System Incorrect Purge flowLearn More Fixes
Cylinder 2 Misfire DetectedLearn More Fixes
Vehicle Speed Sensor MalfunctionLearn More
Injector Circuit Malfunction - Cylinder 1Learn More
Cylinder 1 Misfire DetectedLearn More Fixes
Shift Solenoid A MalfunctionLearn More
System Too Lean (Bank 1)Learn More Fixes
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)Learn More Fixes
Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 1 Sensor 2Learn More
Throttle/Pedal Position Sensor/Switch A Circuit Low InputLearn More
System Too Lean (Bank 2)Learn More Fixes
O2 Sensor Circuit High Voltage (Bank 2 Sensor 2)Learn More Fixes
Idle Control System RPM higher Than ExpectedLearn More Fixes
O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)Learn More Fixes
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
Camshaft Position Sensor Circuit MalfunctionLearn More Fixes
System Too Rich (Bank 2)Learn More Fixes
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
Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 1Learn More Fixes
Upstream Heated O2 Sensors SwappedLearn More
SCP (J1850) Invalid or Missing Data for Primary IdLearn More
TP (Mechanical) Circuit MalfunctionLearn More
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)Learn More Fixes
Engine Oil Pressure Sensor/Switch Circuit MalfunctionLearn More
Cylinder 5 Misfire DetectedLearn More Fixes
Mirror Passenger Drive Circuit FailureLearn More
Evaporative Emission Control System MalfunctionLearn More Fixes
Transmission Control System ElectricalLearn More
Manifold Absolute Pressure/Barometric Pressure Circuit High InputLearn More
Cylinder 3 Misfire DetectedLearn More Fixes
Camshaft Position Sensor Circuit IntermittentLearn More
Serial Communication Link MalfunctionLearn More
Catalyst System Efficiency Below Threshold (Bank 2)Learn More Fixes
Downstream Heated O2 Sensors SwappedLearn More
Skim Invalid KeyLearn More
Intake Camshaft Position Actuator Circuit / Open (Bank 1)Learn More Fixes
Intake Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Intake Camshaft Position Timing - Over-Retarded (Bank 1)Learn More Fixes
Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)Learn More Fixes
Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)Learn More Fixes
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor ALearn More Fixes
Crankshaft Position Camshaft Position Correlation Bank 1 Sensor BLearn More Fixes
Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2Learn More Fixes
Mass or Volume Air Flow Circuit Low Voltage InputLearn More Fixes
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance ProblemLearn More Fixes
Intake Air Temperature Circuit High InputLearn More Fixes
O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)Learn More Fixes
O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)Learn More Fixes
- 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.
It has also been sold as the Jeep Cherokee outside of the North American market. The Jeep Liberty shares many similarities with its sibling, the Jeep Commander.
In terms of sizing, it sits between the smaller Jeep Wrangler and the full-size Jeep Grand Cherokee. Competition from outside of Jeep comes from the Toyota Hilux and Volvo XC60.
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.