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- Powertrain_control_module abstract "A powertrain control module, abbreviated PCM, is an automotive component, an electronic control unit (ECU), used on motor vehicles. It is generally a combined control unit, consisting of the engine control unit (ECU) and the transmission control unit. On some cars, such as many Chryslers, there are multiple computers: the PCM, the Transmission Control Unit, and the Body Control Module, for a total of three separate computers as an example. These automotive computers are generally very reliable. The PCM commonly controls more than 100 factors in a car or truck. There are many hundreds of error codes that can occur, which indicates that some subsection of the car is experiencing a problem. When one of these errors occurs, usually it will turn on the "check engine" light on the dashboard. The PCM is one of potentially several onboard computers, or essentially the "brain" of the engine control system. When the "brain" does not function correctly, neither will the engine or anything else that the microprocessor controls, which may include the charging system, transmission, various emission controls and communications with other onboard control modules. The PCM should be replaced only when it is diagnosed to be defective.On board Diagnostic (OBD II) diagnostic trouble codes that typically indicate a fault with the powertrain control module include:P0600....Serial Communication LinkP0601....Internal Control Module Memory Check Sum ErrorP0602....Control Module Programming ErrorP0603....Internal Control Module Keep Alive Memory (KAM) ErrorP0604....Internal Control Module Random Access Memory (RAM) ErrorP0605....Internal Control Module Read Only Memory (ROM) ErrorP0606....ECM/PCM ProcessorP0607....Control Module PerformanceP0608....Control Module VSS OutputIf you see any of these codes when diagnosing the vehicle with a code reader or scan tool, it may mean the PCM has failed and must be replaced. There can be other reasons for these codes as well, so the presence of any of these codes does not definitively mean the PCM needs to be replaced. Additional diagnostic tests will usually be necessary to confirm the problem is really the powertrain control module and NOT something else. Refer to the OEM diagnostic charts for what these tests are. Usually it involves checking certain inputs to the PCM to see if it outputs the correct response. No response or an incorrect response usually means the PCM is defective and needs to be replaced. Professional Automotive Technicians use extremely expensive equipment ($4,000 to $8,000) to do the extensive and complicated diagnostics that are required before eliminating all other possibilities, to be able to arrive at a firm conclusion that the PCM has failed.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.".
- Powertrain_control_module thumbnail An_ECM_from_a_1996_Chevrolet_Beretta-_2013-10-24_23-13.jpg?width=300.
- Powertrain_control_module wikiPageID "5199689".
- Powertrain_control_module wikiPageRevisionID "601319918".
- Powertrain_control_module hasPhotoCollection Powertrain_control_module.
- Powertrain_control_module subject Category:Auto_parts.
- Powertrain_control_module subject Category:Embedded_systems.
- Powertrain_control_module subject Category:Engine_components.
- Powertrain_control_module subject Category:Engine_control_systems.
- Powertrain_control_module subject Category:Engine_technology.
- Powertrain_control_module subject Category:Fuel_injection_systems.
- Powertrain_control_module subject Category:Onboard_computers.
- Powertrain_control_module subject Category:Power_control.
- Powertrain_control_module type Artifact100021939.
- Powertrain_control_module type Computer103082979.
- Powertrain_control_module type ControlSystem103098806.
- Powertrain_control_module type Device103183080.
- Powertrain_control_module type EmbeddedSystems.
- Powertrain_control_module type EngineControlSystems.
- Powertrain_control_module type FuelInjection103401279.
- Powertrain_control_module type FuelInjectionSystems.
- Powertrain_control_module type Instrumentality103575240.
- Powertrain_control_module type Machine103699975.
- Powertrain_control_module type MechanicalSystem103738241.
- Powertrain_control_module type Object100002684.
- Powertrain_control_module type OnboardComputers.
- Powertrain_control_module type PhysicalEntity100001930.
- Powertrain_control_module type System104377057.
- Powertrain_control_module type Whole100003553.
- Powertrain_control_module comment "A powertrain control module, abbreviated PCM, is an automotive component, an electronic control unit (ECU), used on motor vehicles. It is generally a combined control unit, consisting of the engine control unit (ECU) and the transmission control unit. On some cars, such as many Chryslers, there are multiple computers: the PCM, the Transmission Control Unit, and the Body Control Module, for a total of three separate computers as an example.".
- Powertrain_control_module label "Powertrain control module".
- Powertrain_control_module sameAs m.047gptj.
- Powertrain_control_module sameAs Q7236866.
- Powertrain_control_module sameAs Q7236866.
- Powertrain_control_module sameAs Powertrain_control_module.
- Powertrain_control_module wasDerivedFrom Powertrain_control_module?oldid=601319918.
- Powertrain_control_module depiction An_ECM_from_a_1996_Chevrolet_Beretta-_2013-10-24_23-13.jpg.
- Powertrain_control_module isPrimaryTopicOf Powertrain_control_module.
