2010 nissan frontier - no +12V at 7 pin connector

do you have aftermarket hitch and harness installed?? if so, check the harness.

I KNOW OF 4 WIRE HITCH CONNECTION, WHY SO MANY WIRES?

Check max fuses under the hood

go to the dealer. most likely they may have a harness that just plugs in. .If you try to wire the old fashion way chances are you will create more issues since every system is computer controlled. If you do 1 thing wrong you can fry a computer and then you will be real bummed.

if you go to the parts store they make them ready to plug in you will have to just unplug the tail lights and plug the wire harness inplace of it then itll plug back into the original spot.

must have a tow attachement on the frame in the front,go to uhaul,they have the attachements.or nissan

hello, if the vehicle came with factory towing, i has the relay already....sometimes they ship however without the fuse. the fuse should be behind knee panel on driver's side labed TOW or TRAILER good luck, marty

In the passenger side behind the plastic kick panel there is a control module that works the trailer lights, if you got the towing package. My lights were malfunction and it turned out the unit in the kick panel was not wired up properly from the dealer. Have a dealer check it or get the installation diagrams from a nissan dealer or the web and investigate your module on your own. Best of luck.

There should be a 30 AMP mini blade fuse in the fuse box under the hood that you are probably missing. I assume that since you got the relays with the wiring kit, that you got the kit from a Nissan dealer. If that is true, there should be a fuse in the kit also- in a sealed bag that has the "trailer wiring harness owner's manual" in it.


Hope this is helpful!


Nissan Scope Technician- 10+ years experience in Nissan dealership.