Jeep Patriot: High Oil Pressure → Causes + Diagnosis

If your Jeep Patriot is experiencing unusually high oil pressure, you need to find out what’s causing it right away. Unusually high oil pressure can indicate serious problems, such as a blocked oil passage, or a broken pressure relief valve.  It should be treated like you have no oil pressure until you verify what is … Read more Jeep Patriot: High Oil Pressure → Causes + Diagnosis

Jeep Patriot P0603: Keep Alive Memory → Error

P0603 is a generic OBD2 trouble code.  It indicates that your Jeep Patriot’s keep alive memory has had an error. Keep alive memory is the data that your Patriot’s PCM (Powertrain Control Module) has learned about how your engine conditions.  All of this sensor and driving input data is used to keep it operating efficiently. … Read more Jeep Patriot P0603: Keep Alive Memory → Error

Jeep Patriot P0522: Oil Pressure Sensor/Switch → Low Input

  P0522 is an OBD2 diagnostic code that is triggered when your Jeep Patriot detects that the value being sent from the oil pressure sensor is below its normal operating ranged. It is typically caused by a bad oil pressure sensor or an issue with the oil system, and should be diagnosed and fixed right … Read more Jeep Patriot P0522: Oil Pressure Sensor/Switch → Low Input

Jeep Patriot P0336: Crankshaft Position Sensor “A” Circuit Range/Performance

The Jeep Patriot utilizes a crankshaft position sensor (CKP) in order to regulate the engine timing. This sensor uses a reluctor to gauge the position of the crank. When the Patriot’s ECM determines that the signal coming from this sensor is out of range, it’ll throw the P0336 trouble code.  P0336 is most commonly caused … Read more Jeep Patriot P0336: Crankshaft Position Sensor “A” Circuit Range/Performance

Jeep Patriot P0125: Insufficient Coolant Temp for Closed Loop Fuel Control

P0125 is a generic OBD-II code.  If your Jeep Patriot has registered it, means that the ECM/PCM is getting a signal from the engine coolant temperature sensor (ECT) that the engine is not warm enough to enter closed loop fuel control.  P0125 is usually caused by a bad thermostat, low coolant, or a bad ECT … Read more Jeep Patriot P0125: Insufficient Coolant Temp for Closed Loop Fuel Control

Jeep Patriot P0191:  Fuel Rail Pressure Sensor → Circuit “A” → Range/Performance

  P0191 is a common OBD-II code.  It indicates that the fuel rail pressure sensor is receiving a signal that is outside of its normal range.  This is a generic code, which indicates that it has the same meaning for the Jeep Patriot as it would any other vehicle.     P0191 is typically caused … Read more Jeep Patriot P0191:  Fuel Rail Pressure Sensor → Circuit “A” → Range/Performance

Jeep Patriot P0123: TPS “A” Circuit → High Input

  P0123 is a relatively common OBD-II code.  It’s generic, which means it has the same meaning for the Jeep Patriot as it would any other vehicle. It’s an OBDII code that references issues with the Throttle Position Sensor (TPS). It is relatively serious problem since it can leave your vehicle stranded or severely limited. The … Read more Jeep Patriot P0123: TPS “A” Circuit → High Input