96 s10 Fuse question

i got this truck about 6 months ago and im looking to tow my boat so the other day backed my truck up to the boat and checked to see if the lights worked.. nothing lit up.. this truck as far as i know did not come with the tow package but i was wondering what fuse i should check for the trailer lights

i got this truck about 6 months ago and im looking to tow my boat so the other day backed my truck up to the boat and checked to see if the lights worked.. nothing lit up.. this truck as far as i know did not come with the tow package but i was wondering what fuse i should check for the trailer lights


your trailer or vehicle has no lights??????/if trailer i would check that the ground is secure... then all lamps remove clean test..... then wires for rodent damage .......with meter this is easy fast to locate........