The Engine Control Module (ECM) is a crucial component in a car, as it acts as the brain that controls various engine functions. It works in conjunction with multiple sensors, wires, and connectors to ...

The General has issued a service bulletin describing a fix for certain units of the 2021 Cadillac CT4 compact luxury sedan that may be affected by an incorrectly calibrated Engine Control Module (ECM) ...

The 2021 Cadillac CT5 luxury sedan is included in a newly issued GM service bulletin because a fix is now available for a software problem in the Engine Control Module that may cause the CT5 to fail ...