Trailer Lights Do Not Work With 2012 Nissan Frontier

Question

Question:

Ive got running lights but no brake lights or blinkers

asked by: Floyd B

0

Expert Reply:

Since some of the lights on your trailer are not working with your 2012 Nissan Frontier, the first thing to do is take a look at your owner's manual to locate any trailer fuses or relays and ensure they are all there and in working order. If they are, in order to determine the specific problem you will need to purchase a circuit tester if you do not have one - the very handy Cordless Circuit Tester # PTW2979 is my recommendation due to how easy it is to use - and test the connector on your vehicle after disconnecting it from your trailer. Check the wiring going into your harness from your tail lights to see if those wires are carrying the correct signals, if not then the issue is with the vehicle wiring.

If the signals going to your harness are okay, you'll need to test the signals coming out of the harness, and if they are correct then your issue is likely going to be with the trailer side wiring. You will also want to check both your vehicle and trailer connectors for corrosion, which can be green or white in color.

A build-up of corrosion can interfere with the signals getting through the connectors so if it is present you are going to need to replace the trailer plug with # 18004 (4-way) or # H20043 (7-way). If the issue is with the connectors on your '12 Frontier you can replace the 4-way with part # HM43575 or if you have a 7-way you will need # HM43534.

You'll also need to make sure your grounds are attached to bare metal surfaces and free of any paint, dirt or corrosion. I have added links to a pair of help articles on trailer wiring, including a troubleshooting guide which I highly recommend taking a look at.

Additionally, I also highly recommend using Dielectric Grease for Electrical Connectors # 11755 to help prevent any type of corrosion in your connector; using it will increase your 4-way's durability and extend its lifespan.

expert reply by: Kyle S

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Answer 1

You are definitely on the right track. It sounds like you did install a wiring harness and relays like part #C56225. If those relays have been installed all you would need is the part #HM43534 that you referenced. This will plug right in and give…

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Answer 2

The Curt 7-way kit part #C56226 that fits your 2012 Nissan Frontier that includes relays and harnesses is for the version of the vehicle that don't have the factory tow package and the Hopkins #HM43534 is for the versions of the vehicle that…

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Answer 3

The Hopkins Plug-In Simple Wiring Harness part #HM43575 is a great option for a 2009 Nissan Xterra with towing package and it features plug-in-play installation. It comes with the 4-way plug already attached but if you want to remove this for some…

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Answer 4

Yes, there will be fuses associated with the trailer lightning circuits on your 2014 Nissan Frontier in the engine bay fuse box. The correct locations will be listed for you on the underside of the cover but as they do not list these in the…

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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

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 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

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 10

Class I and Class II hitches both have a 1-1/4 inch receiver opening. The difference is that a Class I hitch has a lower tongue weight rating, usually 200 pounds and a lower towing rating, usually 2,000 pounds. A Class II hitch usually has a tongue…

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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

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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