cargo trailer lights not working

[chris123]

Recently bought a 2002 Sunseeker LE (ford v10).We hooked up our cargo trailer today and the lights are not working.Is the wiring harness wired thru the truck chassis? Is there a fuse that could be blown? The trailer lights work when connected to another harness.Thanks

[flyrotor]

Originally Posted by chris123

The trailer lights work when connected to another harness.

Another harness meaning to a different tow vehicle? Also, the lights you are speaking of, are they the interior cargo lights or the clearance lights?

Two things come to mind. The trailer plug is wired wrong or not per standards. Check the specs on which wire connects to each terminal inside the plug, or the ford is not wired correctly.

Second, if it is the interior lights of the cargo trailer, the ford needs the 40 amp fuse installed in the panel. More than likely the current fuse is not blown, rather it is usually an aftermark installation. They do that to prevent accidental shorting for those who do not plan to pull a trailer.

[chris123]

Does anyone know if a towing package is standard on a 2002 Sunseeker LE 3100ss or do we have an aftermarket wiring harness? I am referring to the running lights not working.Thanks.