The wiring on trailers is generally quite simple and easily accessible, so look for obvious signs of corrosion at connection points. Look for where the insulation could have been worn out by rubbing against something. If all else fails, just run new wires to replace the old wiring. Note that the metal frame of the trailer /vehicle is often used as the ground or return wire.
The wiring on trailers is generally quite simple and easily accessible, so look for obvious signs of corrosion at connection points. Look for where the insulation could have been worn out by rubbing against something. If all else fails, just run new wires to replace the old wiring. Note that the metal frame of the trailer /vehicle is often used as the ground or return wire.