truck pcm pnp switch input
truck pcm pnp switch input can anyone tell me the pin out on the truck pcm for the park neutral postion switch? and is +12v in park or neutral or is it ground? thanks
The pnp switch is momentary switch that is closed in park and neutral and open in anyother gear. When you hit the key 12v flows from the key to the PNP switch on the yellow wire through the contacts as long as it's in park or neutral then out on the purple wire to the starter relay in the UBEC (power dist center) on the driverside fender well. The other wires are crap that works the digital readout on the cluster for gear selection.
