The Powertrain Control Module (PCM) is the computer that controls most of your Jeep’s essential systems. The PCM controls the engine timing, the fuel to air ratio, the transmissi...

Computers are extremely powerful and finicky devices. Even the Jeep PCM. They can control extremely complex electronic devices of every kind. It’s ironic that a computer could li...

In today’s Jeep, the PCM is a vital component of your vehicle’s DNA. The Jeep PCM handles a wide variety of responsibilities in order for it to run correctly. Some of the b...