What Does Code U0100 Mean? U0100 stands for “Lost Communication with ECM/PCM.” The Engine Control Module (ECM) is the computer responsible for controlling the engine. The ECM communicates with other ...

For example, an older vehicle may use an ECM and a TCM (transmission control module) to accomplish many of the same tasks as a PCM does in a newer car. The PCM and ECM perform similar duties when ...

Volvo Trucks North America (Volvo Trucks) is recalling certain 2023 Volvo VN vehicles. The engine control module (ECM) may experience an internal electrical short-circuit, causing the engine to stall.

The powertrain control module (PCM) in your Jeep Wrangler acts as your engine's brain. Here's where it can cause problems, and how to fix them.

Others, such as ECU (Engine Control Unit) or ECM (Engine Control Module) and TCM, which stands for Transmission Control Module, are less common as advertised features, but they're still important ...

Summary Knock sensors are devices used in internal combustion engines to detect engine knock or detonation, a metallic knocking or pinging sound caused by premature combustion. These sensors help ...

Others, such as ECU (Engine Control Unit) or ECM (Engine Control Module) and TCM, which stands for Transmission Control Module, are less common as advertised features, but they're still important ...