Powertrain control module: Difference between revisions

Revision as of 07:22, 2 March 2022

Revision as of 22:07, 21 July 2023

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{{Short description|Automotive component used on motor vehicles}}

[[File:An ECM from a 1996 Chevrolet Beretta- 2013-10-24 23-13.jpg|thumbnail|A PCM from a 1996 [[Chevrolet Beretta]].]]

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The primary inputs to the PCM come from many sensors, of different types, that are spread around the car. Most of them are oriented toward engine management and performance. These sensors fail at a much higher rate than any of the computers do.

Early use of the powertrain control module dates back to the late 1970s{{fact|date=February 2017}} - official phasing in{{clarify|date=February 2017}} of the PCM occurred during the early 1980s when used in conjunction with electronic controlled [[carburetor]]s and [[lockup torque converter]]s (at the time conventional 3-speed automatics received lockup converters at the same time overdrives were introduced{{fact|date=February 2017}}).

==Other names==