U0101 is a generic powertrain code, which means it has the same definition for the Jeep Grand Cherokee as it would any other vehicle. It means that your Grand Cherokee’s TCM (Transmission Control Module) can’t communicate with the rest of the vehicle, usually due to a bad wiring harness or an issue with the TCM … Read more
P219B is a generic OBD2 trouble code. This code indicates that your Jeep Grand Cherokee’s air/fuel ratio is out of balance (too rich or too lean) on the bank 2 side of the engine in question. Your Grand Cherokee is equipped with oxygen sensors that measure the air-fuel ratio of your engine. It’s these sensors … Read more
P219A is a generic OBDII code. The code indicates that your Jeep Grand Cherokee’s air/fuel ratio is out of balance (too rich or too lean). Your Grand Cherokee is equipped with oxygen sensors that measure the air-fuel ratio of your engine. It’s these sensors that are reporting the problem with the air-fuel ratio. With … Read more
U0100 is a generic diagnostic trouble code, meaning it has the same definition for any vehicle made in the 1996 model year or newer (including the Jeep Grand Cherokee). This code tells you that communication has been lost between the ECM/PCM (main computer) and a particular control module has been completely lost. When a vehicle … Read more
P2099 is a generic OBD II code. It has the same meaning for the Jeep Grand Cherokee as it would any other vehicle. It specifically indicates that your Grand Cherokee detected that air-fuel mixture reading as the exhaust gas exits the catalytic converter on the bank 2 side of the engine is too rich. (too … Read more
P2097 is a generic OBD II code, which means that it has the same meaning for the Jeep Grand Cherokee as it would any other vehicle. It specifically indicates that your Grand Cherokee detected that air-fuel mixture reading as the exhaust gas exits the catalytic converter is too rich. (too much fuel for the amount … Read more
P2098 is a generic OBD II code. It specifically indicates that your Grand Cherokee detected a lean condition after the catalytic converter (too much air for the amount of fuel present). P2098 Definition This particular code is generic, so it has the same meaning for your Jeep Grand Cherokee as any other vehicle. There are … Read more
U0073 Definition: Control Module Communication Bus”A” Off U0073 is a fairly common trouble code. It is generic, so it has the same meaning for your Jeep Grand Cherokee as it would any other. This code appears when something has interrupted the communication between two of your Grand Cherokee’s control modules. The most common causes of … Read more
P2276 is a general diagnostic trouble code. It means that your Jeep Grand Cherokee’s third (from the exhaust manifold) “bank 2” downstream oxygen sensor (behind the catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture. Having this code does not necessarily mean that the vehicle is running lean (although it can, … Read more
P2274 in the Jeep Grand Cherokee is a general diagnostic trouble code. It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture. This does not necessarily mean that the vehicle is running lean (although it … Read more