On the AFS 4500sEE I don't have any oil pressure indication when the engine is running, wiring and sensor seem to wring out fine so the question is what should I see on pin 6 of the 37 pin connector if I am checking the pin output at the LRU side of things. i.e. should there be 12 V between pin 6 and ground if the box is powered up and I don't have the female 37 pin connector plugged in?

If there is supposed to be voltage between pin 6 and ground on the 37 pin connector and there is not what are a guys options to get the unit repaired?