Disconnect the circuit from its power source remove the terminals at the panel and disconnect the load device or devices if theyre lights from the circuit. Also you must have a basic understanding of wiring and what is dangerous.

Shoreline Marine 4 Way Trailer Wire Harness 25 Feet
How to find a short in boat wiring. You do not have a short. Just work your way on down and then a lot of times the wire lays against the steel of the trailer. No i dont mean having no bars on your cell phoneim talking about bad wiring connections. Junky diy guy. How to find a short in a modern car fast and easy the correct way duration. If there was one a fuse would blow.
Turn all switches for that circuit to the on position. Now lets review the basics of using a multimeter to measure dc current resistance and. If not you could hurt yourself and your equipment. Sometimes it is a vibration like this will cause that problem also. Now have your fw watch the meter and start wiggling wires. How to find it.
If the circuit was not protected by a fuse you would have smoke and fire. Without a doubt the most common fault is what we call the unwanted open what is meant by this is a circuit where electrical current flow is interrupted by the creation of an open in the. This includes the differences between ac and dc electricity and wires on your boat. Connect the leads to the ground wire and the brown in this case. Switch the vom to check for resistance x1. In classes ive taught all over the world to marine electricians i emphasize that the most common fault with electrical circuits on board boats is not the short circuit as is often believed.
Super easy boat wiring and electrical diagrams step by step tutorial duration. But first read the instructions and be sure you understand them. An easy way to find the source of your problem is to get out your multimeter and do some electrical investigation. When the offending wire is moved off the frame you have narrowed down the area of the short. Or one of the wires part of the wire will grind against the frame causing a short. Finding a short in wiring.
Your running light and your ground wires could fray and touch each other causing a short that way.