Troubleshooting Trailer Wiring Harness Shorting Out on a 2002 Subaru Impreza WRX Sport Wagon

Question

Question:

I purchased a 4X8foot utility trailer. I had the hitch and wiring installed by U-Haul. I have gone through two power converters Curt Brand and associated wiring. When the last one fried, I thought my car was on fire! Obviously Im done with U-Haul. However, they did state that this model of Subaru has had problems with power converters. Can you recommend the proper converter for my application? Thank you.

asked by: Tom D

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Expert Reply:

First thing you need to do is figure out where the short is on your 4x8 trailer and fix it before you install another wiring harness on your 2002 Subaru Impreza otherwise you will just fry another converter. That's why you are having problems, it has nothing to do with your vehicle.

Once you get that situation figured out I would recommend you go with another Curt wiring harness. The correct one for your vehicle is part # C59496. The Curt units use a more modern circuit board than other brands so we have found they tend to have less issues and resist shorting out better.

I attached an FAQ article on trailer wiring and troubleshooting 4 and 5-way installs for you to check out also.

expert reply by: Jameson C

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Answer 1

If you want to hardwire in a trailer connector to your 1998 Toyota Tacoma then you can use #HM48925. It is just more work though when you could use a harness that plugs in line with the vehicle tail light wiring such as #HM43315. But it is totally up…

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Answer 2

The Hopkins Tail Light Converter Kit with 4-Pole Flat Trailer Connector #HM48925 does not have a wire to tap into from your vehicle's battery. It is designed so you can spice into the taillight wiring harness at the rear of your 2005 Dodge…

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Answer 3

I'm unaware of any negative effects of installing a standard powered taillight converter like #C59496 on a 2014 Volkswagen Jetta SportWagen. I did look through the owner's manual, and I found where Volkswagen states "Never connect the…

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Answer 4

Hopkins Tail Light Converter Kit #HM48925 can be used on pretty much any vehicle since it is a hardwire kit. The 2008 Hyundai Accent (sedan and hatchback models) are represented in the list of fits though because it is such a big list it is easy to…

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Answer 5

Yes, the trailer wiring harness part #HM48925 is a confirmed fit for your 2003 Audi A6. This is a universal style harness though which will require you to test the wiring of your taillights and wire to the #HM48925 accordingly.

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Answer 6

The only option we have for trailer wiring for your 2004 Ford Crown Victoria is a hardwire option like part #46255. Or if you didn't want to splice any wires into your vehicle taillights you could use the zero contact kit part #119250KIT that…

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Answer 7

There are two reasons you need to use a wiring harness with a powered converter box on your 2006 Land Rover LR3 which are power and configuration. The electrical circuit on your LR3 is not equipped to handle the additional power draw the trailer…

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Answer 8

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 9

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 10

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 11

Yes, we do. To add a hitch to your 2024 Toyota Grand Highlander, I recommend the Curt Trailer Hitch item #C26VV. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a…

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Answer 12

Lance does have a proprietary plug, but many customers see a standard 6-way or 7-way round and notice it doesn't fit their factory 7-way as well. I've attached an article to help if you have one of the 7-way or 6-way round connectors which we…

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