Electrical problem
1994 Ford F250 V8 Two Wheel Drive Manual 148000 miles
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Turn signals work on truck. there is 7 pin hookup for cattle trailer. used to work. spliced on truck wiring to trk trailer plug. boat hookup comes off the trk plug.
the right turn signal will not work on the cattle trailer or boat hookup. Rt. signall operates on the truck.
Have a good ground, all other lights operate on trailers. saw no damage on trk wiring at splice area.
what am i missing.