Wiring Harness and Brake Controller Recommendation for 2001 Nissan Xterra

Question

Question:

I have a 2001 Xterra with a factory hitch but see no trailer light harness at all. Do I need one with connectors or one with straight wires to splice in? It seems silly Nissan put on a factory hitch without a light harness!!! I plan on a 7 blade plug for my car trailer with brakes, so I would need the correct adapter to go from 4 to 7 as well thank you!

asked by: Vince

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Expert Reply:

It's always possible that the dealership threw a hitch on your 2001 Nissan Xterra and didn't bother with the wiring harness for whatever reason, but regardless of how we ended up here- I have a solution for you. There aren't any "plug and play" wiring harnesses available for the 2001 Xterra, so you're going to need a splice in (hard wire) solution like the Curt Powered Tail Light Converter # C59236 . This harness requires a direct connection to the battery that will help reduce strain on the vehicle's wiring and will give you the 4 way connection you need to allow for the additional trailer connections.

From here, you'll want to install the # ETBC7 to create a 7 way connection for your car trailer with brakes. The 4 way harness on the # C59236 will plug into the harness on the # ETBC7 to eliminate a bit of the wiring, but you'll still need to run a wire for the brake controller, 12v power, auxiliary power and connect the ground wire to complete the installation of the 7 way connector. One of the nice things about the # ETBC7 is that it leaves your 4 way intact so that if you need to use it, you won't need to unplug or re-wire anything.

If you don't already have a brake controller for your 2001 Nissan Xterra, the Tekonsha Primus IQ # TK90160 is one of our more popular controllers that provides you with a reliable unit at a great price. If you wanted to upgrade to a brake controller that isn't a "knee knocker", so to speak, I recommend going with the RedArc Tow Pro Liberty # RED24FR . I really like that this system only leaves the control button/knob visible and the controller can mount just about anywhere in your vehicle- so you don't have to worry about having a controller sitting near your legs for you to bang your knees against. RedArc makes some really great products that are becoming popular choices now, and I like the clean install that this unit provides.

I've linked a couple of helpful videos that will show you a little bit more about the brake controllers and some helpful installation videos that should help you along the way.

expert reply by: Erik B

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Answer 1

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 2

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 3

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 4

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 5

Hey Jonathon thank you so much for all of that additional information! To haul your bikes behind your class C Sprinter motorhome, while flat towing your Mini, I recommend the Hollywood Racks RV Rider Bike Rack item #HLY64FR and the Roadmaster Dual…

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Answer 6

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 7

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 8

Actually, the P3 now has the upgraded axis accelerometer like the P2. The Tekonsha P3 Trailer Brake Controller #90195, will work with both electric over hydraulic brakes on the trailer as well as electric brakes. It has a menu option on the display…

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Answer 9

Hey Kelvin, welcome back. To flat tow a 2026 Ford Maverick with your Demco Commander II Tow Bar item #DM9511012, I recommend the following parts: Baseplate Kit - Demco Tabless Base Plate Kit item #DM38CV Wiring Harness - Roadmaster Diode 7-Wire to…

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Answer 10

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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Answer 11

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 12

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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