Ford: Ford F150 1991 5.0, neutral safety switch, starter solenoid

Question
I have high resistance in the wire (that activates the solenoid) running to the starter solenoid from the system when the ignition switch is in the START position. The older trucks ran from the neutral safety switch to this connector. Not having a schematic I don't know where this wire originates. Where does this wire originate? I am showing 7.4VDC with ign swt in START. Thank you.

Answer
Hi there Andrew i have been trying to find a manula for your truck to give you some assistance i am looking in our archives (boxes of books) trying to find the 91 electrical books. Please do a follow up and i will answer as soon as i can.

Jim

P.s. Sorry for the late reply I was away for the weekend.