Learn all you need to know about Engine Control Modules (ECM), or Engine Control Units (ECU), in this article concering electronically controlled midget engines. Enginology is step one in the ...

The engine control module, or ECM, controls plenty of functions during routine driving, so any issues with that part could cause severe problems.

The Engine Control Module (ECM) of the affected Chevy Silverado units is incorrectly programmed, per Service Update N242452130.

GM has issued a recall for certain examples 2021 to 2023 Chevy Trailblazer due to an issue related to the engine control module.