
Engine control unit - Wikipedia
An engine control unit (ECU), also called an engine control module (ECM), [1] is a device that controls various subsystems of an internal combustion engine. Systems commonly controlled …
What Is the Electronic Control Module? - AutoZone
One crucial component to get familiar with is the Electronic Control Module, or ECM, that plays a pivotal role in ensuring modern vehicles run smoothly and efficiently. Here we’ll break down …
What Is An Engine Control Module (ECM)? - matrackinc.com
Apr 21, 2025 · An Engine Control Module (ECM) is the central computer that manages fuel, ignition, and emissions for efficient engine performance. A failing ECM causes issues like poor …
What is the Electronic Control Module (ECM)? | Cummins Inc.
Nov 3, 2023 · Learn about Electronic Control Module (ECMs) and how they optimize engine performance and provide efficiency and reliability in diverse vehicle technologies.
What Is an ECM and How Does It Work? - Engineer Fix
1 day ago · The Electronic Control Module (ECM) is the central computer responsible for managing the performance of a modern vehicle’s engine. Often referred to as the engine’s …
Bad Engine Control Module (ECM): Symptoms, Repair, …
Apr 11, 2025 · The ECM, or engine control module, is a computer that manages engine operation by using data from sensors to control components like fuel injectors and ignition coils. Modern …
Understanding Engine Control Modules (ECMs) and Their Functions
Apr 1, 2025 · An engine control module (ECM) is a computer that monitors and controls the operation of a vehicle’s engine.
ECM vs PCM vs TCM: Key Automotive Module Differences
Jun 16, 2025 · Learn the difference between ECM, PCM, TCM, BCM, IDM, and FICM. Discover each module’s role in your vehicle’s performance and how they work together.
Engine Control Module: Understanding Its Critical Role
Mar 11, 2025 · In this guide, I’ll break down how an engine control module works, what it controls, and how to recognize signs of a faulty ECM. Whether you’re troubleshooting a problem or just …
5 Symptoms of a Bad ECM (And Replacement Cost in 2026)
Jun 4, 2025 · The engine control module (ECM), also referred to as the engine control unit (ECU), is a critical component which links your engine to the central computer of your vehicle.