If it is a ford, start at the brake pedal. Just above it is the fuel reset switch. The same wire bundle goes to the fuel pump switch and then to the OBD connector. The connector will be at the end of the wire bundle.
1998 Pace Arrow 35 ft. F53 Ford V10 2012 Honda Civic toad
32 years mechanic at Delta Air Lines 15 year motorhome service manager. 3 popups....2 travel trailers....5 motorhomes....loved them all.