Towed vehicle electrical

I am trying to connect my towed vehicle to my PC.  I am having an issue with the taillights on the toad.  The towed charge wire and the running/tail lights work ok but the turn and stop lights do not.  I have checked the 7 pin connector on the PC and I do not get any voltage on the left turn or right turn connector pins.  The lights on the PC appear to working ok but no signal output to the 7 pin connector.


I am suspecting a blown fuse but do not know where to check.  Any thoughts/suggestions would be greatly appreciated.

I finally found the problem.  It indeed was a 20 amp fuse that was blown.  It was in the fuse box under the hood.  There are two combination fuse/relays in the same box.  One operates the left turn/stop and the other operates the right turn/stop for the 7 pin connector.  The fuse/relays were ok.  The 20 amp fuse I think supplies power to the two fuse/relays and it was this fuse that was bad.  The location of these fuses are shown in the Ford Operators Manual.  It is not a normal blade type fuse thus it required a trip to the auto parts store to pick up two.  One to replace the blown fuse and the other as a spare.  I carry a pretty good assortment of blade fuses but they were no help this time.


I wanted to respond to my own question in case someone has a similar issue in the future.

Chasing down electrical gremlins… isn’t much more enjoyable.