Tried to crank it and it turned over slowly but sounded like enough to crank, turned key to off and tried again heard a thunk sound and now no power. When i turn the key on i can hear the fuel pump but the headlights wont work or any of the lights on the dash. Have checked the battery, its good. The manual says to reset the circuit breaker but I have never seen one on my Ranger. I am thinking ecm now, any thoughts?