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  2. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    Diagnostic Trouble Codes (DTCs) are displayed through the electronic climate control system's digital readout when in diagnostic mode. [ 3 ] 1981: General Motors introduced its "Computer Command Control" system on all US passenger vehicles for model year 1981.

  3. OBD-II PIDs - Wikipedia

    en.wikipedia.org/wiki/OBD-II_PIDs

    OBD-II PIDs (On-board diagnostics Parameter IDs) are codes used to request data from a vehicle, used as a diagnostic tool.. SAE standard J1979 defines many OBD-II PIDs. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections.

  4. Powertrain control module - Wikipedia

    en.wikipedia.org/wiki/Powertrain_control_module

    PCM: Power-train control module (Ford, GM, JLR) ECM: Engine control module; Injection control unit (Peugeot, [2] Citroën, Fiat, Alfa, Lancia) DME/DDE: Digital Motor Electronics / Digital Diesel Electronics (BMW, [3] Mini) ECU: Electronic control unit / Engine control unit

  5. List of GM transmissions - Wikipedia

    en.wikipedia.org/wiki/List_of_GM_transmissions

    GM's Automatic Safety Transmission (AST) was a semi-automatic transmission released in 1937. The first mass-produced fully-automatic transmission developed for passenger automobile use was the GM Hydramatic introduced in 1940. [1] The Hydramatic was a big success, and had been installed in the majority of GM models by 1950.

  6. Engine control unit - Wikipedia

    en.wikipedia.org/wiki/Engine_control_unit

    An engine control unit (ECU), also called an engine control module (ECM), [1] is a device that controls various subsystems of an internal combustion engine. Systems commonly controlled by an ECU include the fuel injection and ignition systems.

  7. Electronic control unit - Wikipedia

    en.wikipedia.org/wiki/Electronic_control_unit

    An ECU from a Geo Storm. An electronic control unit (ECU), also known as an electronic control module (ECM), is an embedded system in automotive electronics that controls one or more of the electrical systems or subsystems in a car or other motor vehicle.

  8. GM recalls nearly 500,000 pickup trucks and SUVs. Here's what ...

    www.aol.com/gm-recalls-nearly-500-000-160625464.html

    GM's number for this recall is N242454440. Owners may also contact NHTSA's safety hotline at 888-327-4236 (toll-free at 1-800-424-9153) or go to www.nhtsa.gov for further information. NHTSA's ...

  9. General Motors Local Area Network - Wikipedia

    en.wikipedia.org/wiki/General_Motors_Local_Area...

    General Motors Local Area Network (GMLAN) is an application- and transport-layer protocol using controller area network for lower layer services. [1] It was standardized as SAE J2411 for use in OBD-II vehicle networks.