The Jeep Powertrain Control Module (PCM) is a computer system that plays a important role in the operations of your vehicle. The PCM Unit receives input from various sensors and controllers located throughout the vehicle, including the engine, transmission, and other systems, to determine the appropriate output for the engine and transmission.
In this way, the PCM helps to ensure that the engine and transmission are functioning optimally, this is essential for the overall performance and efficiency of your Jeep. The PCM also stores diagnostic information and can generate diagnostic trouble codes (DTCs) if there is a problem with the powertrain system. These codes can help any mechanic identify the specific issue and determine the appropriate action to get your vehicle fixed.