Microprocessors controls the functions of advanced engines.
The Caterpillar 3176 and 3406 diesel engines came with an electronic engine control accepted as the Electronic Control Module (ECM).
Causes of Failure
Voltage overload, vibration, heat stress and corrosion can beginning failures of the PCM. It very communicates with other onboard curb modules.History of the PCM
Ford's cardinal PCM was called Electronic Engine Governance (EEC) and appeared in the 1980 Marquis and Ford LTD. Habitual Motors introduced Personal computer Order Charge in 1982 for its Buicks.
How the PCM Works
The PCM is connected to operating hardware such as electric motors and solenoids via electrical terminals. The PCM issues commands that adjust the powertrain's functions. Sensors and battery voltage force the PCM.
Truck Applications
In 1990, PCMs were applied to massive Motor lorry applications.The powertrain control module (PCM) is the onboard pc of the machine. It is the passion of the engine control course. The PCM controls the charging, transmission and emission systems.
Evil electrical connections as well can intention the PCM to malfunction.
Location of PCMs
The domicile of the PCM varies between car and truck models. They can be behind the instrument panel and buried underneath other components, such as the stereo. Other locations can be in the engine compartment or under a seat.
