What kind of computer control does a car have?
Some main computers controlled the transmission, the engine and the ABS; these were called the VCM™s or vehicle control module. As automatic transmissions became more complex, some systems started to separate the PCM back into the ECM and a separate TCM or transmission control module.
When did General Motors start computerized car control?
General Motors was the forerunner in computerized technologies with the other two domestic car manufacturers only meeting the bare minimum to abide with the new regulations. So the modern story really begins in 1980 with a check engine light and a primitive computer in every U.S. vehicle.
How to program an electronic control module ( ECM ) with GM?
a) In the Select Diagnostic Tool area, select Pass-Thru. Note: The Information Only/PROM Data option displays PROM or calibration data for a vehicle. b) In the Select Programming Process area, select one of the following: Select Reprogram ECU to reprogram (reflash or calibrate) the selected ECM (ECU).
What kind of stop and start system does GM use?
There are three types of 12V Stop/Start systems that have been used in GM vehicles: 1 The Two-Battery system that includes an auxiliary 12-volt battery. 2 The DC to DC system that features a power supply transformer. 3 The Ultra Capacitor system that has capacitors that provide a voltage boost during engine restarts.
General Motors was the forerunner in computerized technologies with the other two domestic car manufacturers only meeting the bare minimum to abide with the new regulations. So the modern story really begins in 1980 with a check engine light and a primitive computer in every U.S. vehicle.
Which is part of a car is controlled by a computer?
These systems are primarily controlled by a single computer: the powertrain control module (PCM). This controls the engine control module (ECM) and the transmission control module (TCM). While our modern, computerized vehicles are more reliable and efficient than older cars, these computers come with a disadvantage.
Is the GM Silverado a computer controlled vehicle?
As the Silverado, Sierra and the variants that GM builds have grown more complex and computer controlled, a new wave of vehicle modification has begun to take off and it has nothing to do with spinning wrenches. It’s vehicle computer modification.
How does the voltage control work on a GM RVC?
“To be clear, GM’s RVC systems use alternators with field currents that truly are controlled by logic external to the alternator. You’ll see two things right off the bat on RVC vehicles tipping you to the presence of this latest technology: First, you’ll see a two-wire voltage regulator connection instead of the familiar four-wire connection.