If you've had to have your car serviced or had a trouble code read, you may have heard about the PCM, but what does the module do for your car?

Your PCM's fuel system control relies on the pre-cat oxygen sensors to adjust the part-throttle air/fuel ratio to 14.7:1-15:1 for low emissions and fuel economy.

A completely new PCM was developed to control the new engine architecture. The '97 LS1 module was designed around a much faster Motorola 68000 series processor.

An issue with the powertrain control module software has prompted Stellantis to recall 131,700 of its Ram 1500 pickup trucks. Related: More Ram News Affected vehicles include model-year 2021 1500s ...

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 ...

Some Chevy Bolt EV And EUV Models Need Powertrain Control Module Reprogrammed . By Rhian Hunt. April 8, 2024 12:03 am . Facebook Twitter LinkedIn Pinterest Email Print. 1 . Sponsored.

Dealers will update the powertrain control module (PCM) software, free of charge. Owner notification letters are expected to be mailed April 24, 2025. Owners may contact Ford customer service at 1 ...

The fix: Dealers will replace the powertrain control module on affected vehicles, free of charge to owners. How to contact the manufacturer: The recall is expected to begin Sept. 28.