Howdy,
I was hooking up a new trailer on my '92 250 Diesel and shorted the tail light circuit briefly w/ a tester, knocking out the lights. Pulled out the fuse box and all my fuses are good. Everything's fine except for left and right running lights and license plate lights.
Is there any other fuse down the line I don't know about?
Thanks!
Jeff

 

make sure you looked at the fuse box under the hood to. I alway check every single fuse with a tester that I know works

 

should be a 20 amp fuse feeding the headlamp switch for the running lamp circuit. There should be a sizable pnk/red wire from that fuse to the headlamp switch. If that wire has voltage, you'll need to go up to the switch and check things out. Blk/yel is the feed for the lights coming OUT of the headlamp switch.

 

taillight fuse is under the hood on the 2nd gens. Fill out you sig so we know what truck you have

 

Uhhhhhh he said: 92 250.

 

On the 1st gens there was a wiring overlay kit available from Dodge to power the park lights through a relay. I installed several, but it was many years ago so I don't remember the details, but I would check around the battery for some added-on wiring and an inline fuse.

 

Problem solved, Thanks for all the suggestions.
Bad headlight switch; $35 at Napa.
Jeff