The electronic control module (ECM) or powertrain control module (PCM) is the main computer that controls many of the vehicle’s essential functions. And as modern vehicles get more and more ...

which gather information and data about the car's performance and help optimize efficiency. For many modern vehicles, a single computer, known as the PCM or powertrain control module, manages that ...

Automakers are holding cars at port left and right over tariff worries, but Mazda is making the same move for a very different reason: Large numbers of the 2025 MX-5 Miata, quite possibly the ...