P0032 is a not-too-common, generic, OBDII trouble code. It indicates that your Jeep Grand Cherokee’s heated oxygen sensor (which we’ll be referring to as HO2S a lot) is sending a signal to the PCM that is outside of its normal operating range. In this case, the signal is higher than it should be. Terminology: HO2S- … Read more
P0057 is a generic trouble code, which means that it has the same definition for the Jeep Grand Cherokee as it would any other vehicle. It indicates that the O2 sensor at bank 2 sensor 2 has a heated element that is sending a signal back to the ECM that is below its normal operating … Read more
P0037 is a generic trouble code, which means that it has the same definition for the Jeep Grand Cherokee as it would any other vehicle. It indicates that the O2 sensor at bank 1 sensor 2 has a heated element that is sending a signal back to the ECM that is below its normal operating … Read more
P0022 is a relatively common general OBD2 trouble code. If your Grand Cherokee has Variable Valve Timing (We’ll be referring to it as VVT a lot), it can get this code. What is VVT? VVT changes the frequency and distribution of gases entering and exiting the combustion chamber. It allows the engine to act like … Read more
P0050 is a common OBD2 trouble code. It’s generic, which means it has the same definition for the Jeep Grand Cherokee as any other vehicle. The cause of P0050 is almost always a bad heated oxygen sensor or wiring issue. P0050 Definition: Heater Control – Circuit – Bank 2 Sensor 1 P0050 indicates no signal … Read more
P0030 is a very common OBD2 trouble code. It’s generic, which means it has the same definition for the Jeep Grand Cherokee as any other vehicle. This code is almost always caused by a bad heated oxygen sensor or wiring issue. P0030 Definition: Heater Control – Circuit – B1S1 P0030 indicates no signal coming from … Read more
P0730 is a standard OBD2 trouble code. It indicates that your Jeep Grand Cherokee’s PCM has detected an incorrect gear ratio. While this code can appear if you changed your Grand Cherokee’s transmission or rear end gearing without re-flashing the computer, it almost always has nothing to do with an incorrect gear ratio. An internal … Read more
P0871 is a somewhat rare diagnostic trouble code. While your Jeep Grand Cherokee’s check engine light will come on, this particular code indicates that there’s something wrong with the transmission, specifically the transmission fluid pressure sensor switch “C”. It’s a generic code, so P0871 has the same definition for any vehicle made for the 1996 … Read more
P0480 is a relatively common OBDII trouble code. It indicates that your Jeep Grand Cherokee’s “cooling fan 1 control circuit” is malfunctioning. It’s a generic code, so it has the same meaning for any vehicle made for the 1996 model year and up. P0480 Definition: Cooling Fan 1 – Control Circuit Malfunction Here is … Read more
P0320 is a relatively common ignition-related trouble code. P0320 indicates that your Jeep Grand Cherokee’s ignition/distributor engine speed circuit is malfunctioning. P0320 is most likely caused by the engine speed sensor, or a wiring issue. P0320 Definition: Ignition/Distributor Engine Speed – Input Circuit Nearly all modern vehicles, including the Jeep Grand Cherokee, use individual coil … Read more