Moderated Discussion Areas
ContinuousWave: Small Boat Electrical
Trailer Lighting Problems
|Author||Topic: Trailer Lighting Problems|
posted 07-25-2007 04:15 PM ET (US)
The running lights are not going on my boat trailer although the brake and signal lights are ok. [The author informs us he] bought a circuit tester from West Marine which is a $4 plug in gizmo which I plugged into the end of my Jeep's receptacle. It showed that the running lights circuit feeding the recptacle is not working. Any help will be apreciated.
posted 07-25-2007 08:22 PM ET (US)
Test the "gizmo" on another vehicle which is known to work.
posted 07-26-2007 12:03 AM ET (US)
Turns out the module partially burned out, had it replaced with a new one:))
posted 07-26-2007 09:25 PM ET (US)
In an effort to reduce weight and costs, some of the newer cars have tail light electrical wiring that cannot provide enough current to run the lighting circuits of a trailer. The additional current load of the trailer lighting circuits may be too much for your vehicle, if it has such a system. For those cases you have to add a special trailer lighting adaptor which has a separate feed from the vehicle battery. It uses the vehicle tail lights just as inputs and gets the current from the independent battery feed. This may be necessary in your case. See if the replacement OEM device you installed holds up.
posted 07-26-2007 11:26 PM ET (US)
If the "module" is a diode pack to convert separate brake and
turn signals on the car (the turn signals are usually amber)
to the combined brake and turn signals used on simple trailers,
then a lack of ability of the care to supply current wouldn't
have burned it out. I'd be looking for a short to to ground
somewhere, most likely to the trailer frame.
BTW, some of those "gizmos" won't work if you have a "module".
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