Blowing Fuses

[wildkat7]

Any ideas why my trailer keep blowing fuses in my trucks fuse box, especially the reverse lights? Getting very frustrating.

[skeet210]

Do you have a swing away tongue? Could be a possible short in your reverse wire grounding out.

[BILLY]

Grounding out someplace.

[teamplayer]

I had the same problem. The wires had lost some of the insulation inside the trailer. I removed the wiring, found the place where the insulation was scraped off, replaced that part of the wiring and then place wiring back in the trailer frame inside plastic tubing. I have had no problems since. Good luck.

[Jigsisme]

I had the same problem last month...with the help of BBC members and a friend we found 2 wires exposed and shorting out. 1 was in the swing away tongue and the other was on the rear of the trailer where the 3 lights are on a "strip"...just take some time and look in obvious areas, as with most, it will jut take time checking the wires.
Hope this helps!

[JR19]

I would start by trouble shooting the trailer 1st. I would inspect all connections at every light for loose connection also looking for any bare or visible broken wire. Then inspect where the ground wire runs from the plug to the trailer.Also inspect for a loose prong inside the plug.

With the trailer unhooked from the truck check all lights with a multi meter for good ground. Set meter to Ohms/continunity you want 0 resistance. If you have a digital meter it will beep if you have lees than 30 Ohms resistance. 0 would be perfect ground. Just make sure there is no pwer to the trailer when checking Ohms/resistance/ground or your meter will have a bad day.

The most common problem I find with trailer lights is a loose ground connection. A lot of trailer lighting wires are connected to the frame with pop rivets that work lose over a period of time. If your trailer lights have pop rivets inspect the tightness of the connection. If it is loose drill out pop rivet and replace with a bolt and nut if possible. If you can not get a bolt and nut to work a self tapping screw with a lock washer would be my other suggestion.

Bad or weak ground will do funny things but since you are blowing fuses it may be in your power circuit. Use meter to check the power wires to insure do not have a short. With the meter set on continunity touch the black lead to one of the post on the trailer plug and the red to all other post one post at a time. Depending on the type meter you have it will read "I" or "OL" If it beeps or gives a number reading you have a short. <br /><br />
Modified by JR19 at 11:28 PM 12/7/2010<br /><br />
Modified by JR19 at 11:28 PM 12/7/2010


Modified by JR19 at 11:29 PM 12/7/2010