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ECM, (Engine Control Module, Electronic Control Module) PCM, (Powertrain Control Module, Power Control Module) ECU, (Engine Control Unit, Electronic Control Unit).
Engine control module, or electronic control module
It's 'electronic control module', and the one for the engine will be one of the computers on the vehicle.
It advances and retards the engine timing as needed.
The electronic ignition control module on an automobile is installed by first locating the unit at the top of the engine. The wiring harness is then disconnected from the original unit an a new module put in its place.
ECM can stand for Electronic Control Module, or Engine Control Module. A 2000 Oldsmobile Bravada uses a VCM (Vehicle Control Module) which controls the Engine and Transmission. VCM's are commonly referred to as PCM's (Powertrain Control Modules), or ECM's (Engine Control Modules)
electronic computer module Electronic control module
"ECM" stands for "electronic countermeasures". Or in automotive terms, "Engine Control Module".
It's used in reference to the Electronic Control Module (ECM), which is a computer.
I am sorry, I can't for the life of me figure out what you are talking about. Unless you mean an electronic MODULE. If that is what you mean, then there are several electronic modules on the vehicle. The main engine computer(PCM), the electronic ignition module, the cruise control, air bag module, even the radio is an electronic module.
You should find the ECM (Engine Control Module) also known as PCM (Power Control Module) under the right side of the dash (passenger side).
If you are speaking of the PCM(Power Control Module) or ECM(Engine Control Module, it is located in the inside middle of the dash. There is also a ECM relay in the underhood fuse box.