Lance camper truck outlet running lights do not work

check for camper wiring and trailer plug connections

Check for constant power at trailer plug

You should have a 3/4 ton or bigger for Lance 855. I'm sure your truck can but you to put camper springs on the back and your truck may struggle with the camper.

Are you sure you tied into the factroy trailer wiring circuit of the truck? It is really hard to mess this up.

if they camper was wired for an older/other make of truck it might be different check to see if the yellow(left side turn/brake) wire maybe connected or crossed with the green(right turn/brake) wire,also see if the plug in wiring under the rear bumper is a stock plug in or if some one tried to go cheap and use"scotch-locks" on the tail light wires and crossed something under there,the parts store sells a plug in tester for your truck's particular plug that will tell you if the truck has the issue or if it's the camper,also check the ground,hope this helps,and good luck

The plug on the camper doesn't match the wiring on your truck, when youturn the lights on it is sending 12v to the brakes.

This is the way your trailer plug should be wired if your truck is wired standard.

That is a tricky question , I have look through several sites to find information on the Lance campers with no success? must be a top secret organization . Ask me what your looking for I maybe able to help answer your question.

Hey Paul, it's most likely a wiring problem. There is one wire designated for just the running lights. What type of plug does the truck have? Probably 6 or 7 way (6 or 7 wire). You can check the plug-in at the truck with a multi-meter to see if there's power at that point. If there is, then the problem is somewhere from the trailer plug to the lights on the trailer. If you have a 7 way plug, the center plug is for aux. power (back up lights on what you pull, if equipped). One wire is power to the camper battery for a breakaway switch, one for left turn and stop, one for right turn and stop, a ground wire, one for running lights, and one for trailer brakes. To determine what wire does what, 1st with meter check volts of all wires w/ truck and trailer hooked up, truck running, power wire to battery for breakaway should show voltage if equipped w/ a trickle charge, brake wire will show low voltage, approx. 2 volts, apply brakes and should go up to approx. 12 volts, put on L turn signal, meter should go up and down, as power to blinker pulses on and off, do the same to determine which is the R turn signal (put foot on truck brakes will show voltage to brake lights AND brakes, continue w/ process of elimination to determine which is running lights, and exactly where power is not going.

Check the taillamp fuse on the truck. If it is blown, you either have a short in the wiring of the camper, or the 7 pin inverter box on the camper.

the camper has a electrical fault some were ,
a wire could have been chewed though
or a water leak into the wiring points