Need a circuit diagram for a 99.5 4R100 trans. The MLPS has 12 contacts and 11 wires hooked to it. I can turn the key on and jump the starter relay and it runs, temporarily run a fused B+ thru a momentary push button to the starter relay. Any suggestions on why the key won't start it. Could the MLPS have gone bad? Hate to buy one and it's not the problem, there expensive, Dealer $84, Auto store is $139.