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In automotive electronics, body control module or 'body computer' is a generic term for an electronic control unit responsible for monitoring and controlling various electronic accessories in a vehicle's body. Typically in a car the BCM controls the power windows, power mirrors, air conditioning, immobilizer system, central locking, etc.
Modern vehicles have many ECUs, and these can include some or all of the following: engine control module (ECM), powertrain control module (PCM), transmission control module (TCM), brake control module (BCM or EBCM), central control module (CCM), central timing module (CTM), general electronic module (GEM), body control module (BCM), and ...
A power-train control module, abbreviated PCM, is an automotive component, a control unit, used on motor vehicles. It is generally a combined controller consisting of the engine control unit (ECU) and the transmission control unit (TCU). On some cars, such as many Chryslers, there are multiple computers: the PCM, the TCU, and the Body Control ...
BCM may refer to: Automotive. Body Control Module, in automotive electronics; Business. Boots Contract Manufacturing, previously part of Alliance Boots;
The Seville's computerized engine management system featured a BCM/ECM (Body Control Module/Engine Control Module) and an electronic dashboard using high-intensity vacuum fluorescent displays — made possibly after GM's acquisition of Hughes Electronics.
Each module, a node on the vehicle network, controls specific components related to its function and communicates with the other modules as necessary, using a standard protocol, over the vehicle network. Networks were not new, but their application to the vehicle was. The networks for the vehicles called for: Low cost; Immunity from external noise