Troubleshooting Hopkins Trailer Wiring Harness That Keeps Blowing Fuses

Question

Question:

My Hopkins Plug-In Simple Vehicle Wiring Harness with 4-Pole Flat Trailer Connector is popping fuses. Can you tell me what is wrong?

asked by: Jacob J

0

Expert Reply:

If the Hopkins Plug-In Simple Wiring Harness # HM42545 you referenced keeps blowing fuses in the vehicle then there is likely damaged wiring somewhere that's causing a short. I recommend inspecting the wiring on the harness for any exposed, pinched, or damaged areas that need to be replaced.

If it's only blowing a fuse when connected to the trailer you will want to do this with the trailer wiring, again looking for damaged or exposed sections that might be touching nearby wires or bare metal.

If all the wiring looks good take a look at the 4-Way on both your tow vehicle and the trailer. Inspect the pins for any debris or corrosion that needs to be cleaned out.

If this does not resolve the issue please let me know and we can continue to troubleshoot.

expert reply by: Chris R

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Answer 1

Basically you have it figured out pretty well already. The Curt and Tekonsha are going to be quite a bit easier to install since you don't have to route a power wire, but the Hopkins overall will be the safer and more reliable option since it has…

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Answer 2

You should have no problems connecting the ground wire from your light to the main ground circuit on your utility trailer. Though we typically recommend using a Ring Terminal #DW05702-1 and a Self Tapping Screw #FA1131822 to ground it to your trailer…

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Answer 3

You will want to first try connecting and disconnecting the driver side connectors of the part #C55451 to hopefully clear out any misconnection that it may have. If it still doesn't work you would want to test the converter box to determine if it…

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Answer 4

I am sorry to hear about the issues you are having with the Curt T-Connector Vehicle Wiring Harness part #C55451. This harness actually ties in behind the tail lights on your 2006 Jeep Grand Cherokee so there will be no additional fuses or relays…

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Answer 5

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 6

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 7

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 8

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 9

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 10

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 11

The main difference between the Curt Trailer Hitch Receiver part #C13416 and the EcoHitch Hidden Trailer Hitch Receiver part #EH97FR is that the EcoHitch has a completely hidden cross tube whereas the Curt cross tube will be visible from the rear of…

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Answer 12

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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Troubleshooting Hopkins Trailer Wiring Harness That Keeps Blowing Fuses

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