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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 transmission, and the anti-lock brakes, along with dozens of other smaller functions. When your PCM fails, it can cause you to lose fuel efficiency and possibly fail…
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 literally run a mechanized coffee factory and then fail if a cup of java juice spilled on it; but, alas, that’s the way it is
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 basic functions of a PCM are to regulate emission controls to make sure that the engine does not emit pollutants beyond specified parameters.…
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