What is the PCM and what does it do?
PCM – Powertrain Control Module. The PCM (Powertrain Control Module) is the main computer in the automobile that controls all its functions. By placing control of both the transmission and engine into one unit, the PCM can better coordinate their functions for better power delivery and fuel economy.
What does the PCM do in a corvette?
For example, the Active Rev Matching in a Corvette matches clutch and engine RPM during shifts using wheel speed data from the traction control system and a shifter position sensor on the transmission. The PCM (Powertrain Control Module) is the main computer in the automobile that controls all its functions.
When to replace your PCM ( and when not to )?
The onboard computer is the brains of the engine control system, so when the brain isn’t functioning correctly neither is 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.
Can a PCM be installed in the same car?
Many PCMs appear to be exactly the same on the outside (same sized box and connectors) but may be wired or calibrated differently inside. If the wrong PCM is installed in a vehicle, it may run but probably won’t run well. Close enough isn’t good enough when it comes to replacing PCMs. It must be the correct replacement for the application.
What is the PCM in a car called?
by Jen Davis. The powertrain control module, otherwise known as the PCM or computer, is essentially your vehicle’s brain. The PCM in your car or truck is designed to control and regulate all of its functions and parts.
What is the difference between a PCM and an ECM?
PCM (power-train control module) controls both engine performance and transmission, while ECM (electronic control module) only controls issues about the engine. Many modern cars feature a PCM as it regulates both the ECU and TCU. What causes a PCM to fail? There are many specific reasons why a PCM unit might fail.
What is the engine control module in Hyundai?
About Hyundai Engine Control Module. The engine control module (ECM) is also called as powertrain control module (PCM) or referred to engine control unit (ECU). It can be found on nearly all modern vehicles. People often see it as the brain of engine management system.
Is the ECM the same as the engine control module?
Many people believe PCM and ECM (or ECU) are the same, which is valid to some extent. PCM (power-train control module) controls both engine performance and transmission, while ECM (electronic control module) only controls issues about the engine.