P0603 is a generic OBD2 trouble code. It indicates that your Jeep Grand Cherokee’s keep alive memory has had an error. Keep alive memory is the data that your Grand Cherokee’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 … Read more
P0522 is an OBD2 diagnostic code that is triggered when your Jeep Grand Cherokee 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 … Read more
The Jeep Grand Cherokee 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 Grand Cherokee’s ECM determines that the signal coming from this sensor is out of range, it’ll throw the P0336 trouble code. P0336 is most … Read more
P0308 is a fairly common trouble code with the Jeep Grand Cherokee. It’s and OBD2 code and means that a misfire has been detected in the 8th cylinder in the firing order. You should only be seeing this code if you have an engine with at least 8 cylinders. So, it’s mostly a code … Read more
P0307 is a fairly common trouble code with the Jeep Grand Cherokee. It’s and OBD2 code and means that a misfire has been detected in the 7th cylinder in the firing order. You should only be seeing this code if you have an engine with at least 7 cylinders. So, it’s mostly a code for … Read more
P0125 is a generic OBD-II code. If your Jeep Grand Cherokee 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 … Read more
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 Grand Cherokee as it would any other vehicle. P0191 is typically … Read more
P0123 is a relatively common OBD-II code. It’s generic, which means it has the same meaning for the Jeep Grand Cherokee 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. … Read more
P0332 is a powertrain related OBD-II trouble code. It has the same meaning for the Jeep Grand Cherokee as it would any other vehicle. By definition, P0332 means that the vehicles ECM/PCM is getting a signal that is lower than the defined operational range from the knock sensor (Sensor 2 | Bank 2). Clearing this … Read more
P0327 is a powertrain related OBD-II trouble code. It has the same meaning for the Jeep Grand Cherokee as it would any other vehicle. By definition, P0327 means that the vehicles ECM/PCM is getting a signal that is lower than the defined operational range. Clearing this code typically requires a new knock sensor or … Read more