Troubleshooting Left Rear Trailer Light That Glows with Vehicle Turned Off

Question

Question:

about 9 months after installation that seemed trouble free, I am finding that the left rear tail lights are glowing when vehicle is off. what gives?

asked by: Bruce T

0

Expert Reply:

It sounds like there may have been a short on your trailer that caused the converter box of Curt Wiring Harness part # C56330 to short out and now there is a low amount of voltage on your left rear tail light.

We see this problem a lot, and actually the # C56330 did its job and protected your vehicle wiring. They are designed to act like a fuse between your trailer wiring and vehicle wiring so that you do not damage your vehicle wiring.

You can further test the converter box by testing the circuits going into the box by function and then testing the output side as well.

What you will need to do is find the short on your trailer wiring and fix it as necessary and then install a new wiring harness. Look for obvious signs of shorts like cut or exposed wires.

I attached an FAQ on trailer wiring plus an FAQ on troubleshooting 4-way installs.

expert reply by: Jameson C

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Answer 1

We have not had a vehicle here to allow us to produce an installation video for this particular wiring harness, Curt #C56330, in the 2013 Dodge Journey. However, since this is a plug-in harness its installation will be quite similar to that of many…

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Answer 2

For your 2016 Dodge Journey with LED lighting you would want the Curt trailer wiring harness part #C56330 . Modern vehicles use more delicate turn signal wiring setups that can't handle the amperage load of trailer wiring so you have to use…

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Answer 3

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 4

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 5

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 6

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 7

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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Answer 8

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 9

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 10

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Answer 11

To replace your NOK AD2527E seal you can use #168233. It has an inner diameter of 1.688 inches and an outer diameter of 2.332 inches. Based on what I could find on the NOK AD2527E the inner diameter is the same and the outer diameter is 2.328 inches.…

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Answer 12

As far as wiring for the 2024 Toyota Grand Highlander, we do have the Curt #C59236 available which is more of a universal hardwire harness. Unfortunately there are not any plug-and-play options that have been confirmed to fit as of yet (October 4,…

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