Understanding Powertrain Control Modules

Understanding Powertrain Control Modules

When a customer needs a replacement PCM, identifying and selecting the correct unit is critical.

Known by many acronyms, vehicle computers use input from multiple sensors to make decisions about how to keep the vehicle running correctly throughout a wide range of conditions and then send their own signals to various actuators, modules and solenoids.  

You can think of these as “if/then” functions. If the PCM receives signal “X” from a particular sensor, then its programming prompts it to do “Y.” If it does not receive this particular signal, it may do nothing, or if it receives a different signal, then it does “Z.”  

At its heart, a PCM operates in binary language, which is a series of ones and zeros that can represent “yes” or “no” answers to a question.

This video is sponsored by The Pronto Network.        

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