New member here looking for advice. I am trying to get my 1990 ranger back on the road. It is an extended cab 4x2 w the 2.9L engine. First off i have a new battery and truck was cranking, but i only had 6 volts to fuel pump. Traced the problem back to fuel relay only getting 6 volts from ignition switch. So i replaced the ignition switch and now i have no power to instrument cluster. I tried installing a new ignition cylinder, but that didnt work either. I still have head lights, dome light, all fuses fine and battery fully charged. No radio or warning lights almost like new cylinder isnt working. I can still jump solenoid and starter turns. One last thing there is a red led light flashing on the hookup for a scan tool (not sure what that is called) but almost like i am locked out from turning vehicle on. Any advice on where to start would be greatly appriciated

 

Did you ever find out what was wrong?¿? It will help me 2! Dealership gave me my $$$ and truck back. They can't fix it...