"disconnected headlight Hi beam at the fender well terminal block ... turned on low beam and got 8.5v coming back on the Hi beam wire from the headlight"
so you're saying that with the low beam powered and high beam terminal disconnected, you're getting a voltage reading at the high beam terminal? have you changed the headlight bulbs? are you sure the headlight pigtail connectors are good? with the connectors off the bulb, resistance check between the terminals, and resistance check the bulb terminals
Bill
