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

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.

Almost 31,500 units of the 2024 model year Mazda CX-90 and 2025 model year Mazda CX-70 have been hit with a safety recall stateside. Improper powertrain and engine control module software may ...