RAM 1500 Truck 2WD V6-3.9L VIN X (1999)
Powertrain Control Module: Description and Operation
42RE Transmission
The PCM controls operation of the converter clutch, overdrive clutch, and governor pressure solenoid.
The control module determines transmission shift points based on input signals from the transmission thermistor, transmission output shaft speed
sensor, crankshaft position sensor, vehicle speed sensor, throttle position sensor, and battery temperature sensor.
