The powertrain control module isn't the only computer that you can find on contemporary cars, but it is the primary computer that controls most systems and functions for vehicles that utilize a PCM.

How Does A Purge Valve Work? The purge valve is typically located between the fuel tank and the intake manifold and is connected to the EVAP system's hoses and tubing. It is controlled by the engine's ...

Ram is recalling 131,700 of these trucks because the powertrain control module could cause a situation where there’s an incorrect fuel mixture.

Read the Chevy High-Performance tech article on How to Program an OBD-II Powertrain Control Module.

The 2025 Ford Explorer is being recalled due to faulty powertrain control module (PCM) software that could reset and cause issues. Along with a potential power loss, it could damage the SUV's ...

These sensors work in tandem to send the powertrain control module (i.e., the computer that manages the engine and transmission) the speed difference between the engine crankshaft and the ...