Vehicle Wiring Harness 4-Way Flat for 2007 Nissan Xterra Relays and Pigtail

Question

Question:

If I purchased the four flat one already do I need to purchase the relay part to make the four flat part work? If so do you have the relays for sale by themselves not in a kit

asked by: Charles K

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Expert Reply:

At this time we do not have the relays and wiring connector sold separately for the Curt T-Connector Vehicle Wiring Harness # C56225. This part is required for the 4-way flat trailer connector to function if your 2007 Nissan Xterra came from the factory without the connector and relays.

The Hopkins Plug-In Simple Wiring Harness for Factory Tow Package # HM43575 that you ordered requires the relays and pigtail as well. As we do not have it separately you can contact a local Nissan dealer to see if they have it available.

expert reply by: Bud M

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Answer 1

One way would be to check the original window sticker for the vehicle for the tow package being listed. Other way would be to take the VIN to a Nissan dealer and have them run it to find out. If you do not have any factory trailer wiring currently…

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Answer 2

If you just installed a new Curt T-Connector #C56225 on your Nissan Xterra but you are still having issues with the lights on your trailer, then the issue is most likely on your trailer side. You can verify this by checking the 4-Way functions with a…

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Answer 3

Since you will have trailer brakes and a battery, you will need at least a 6-Way connector, but I suggest going ahead and using a 7-Way as they are more universal. You will also need a brake controller to manage the electric trailer brakes. I will…

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Answer 4

Since your 2008 Nissan Xterra does not have the factory tow package, you will need to use the Curt T-Connector wiring #C56225 that you have referenced. This kit comes with everything you will need to make the 4-Way functional including the wiring…

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Answer 5

Your local mechanic is more than likely correct. Newer vehicles have sensitive components and thinner wires than ever before and adding trailer wiring that is powered by the vehicle wiring can overload the wires or sensitive circuitry and cause any…

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Answer 6

The relays you need for your 2012 Nissan Frontier are part #C57000. This relay kit includes the large brown relay which activates the 12-volt power circuit, and the smaller blue relays which activate the turn signals. I have linked you to the…

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Answer 7

If you are unsure if you have the tow package or not, the only way to find out for sure would be to contact a dealership with your VIN. With certain vehicles we can sometimes check to see if certain electrical components are present, like a 7-way…

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Answer 8

If your 2006 Nissan Frontier does not have the factory trailer wiring it would need relays to activate it. For that you would need the part #C56225. If you have the relays already all you would need is the part #HM43575. If you look behind the kick…

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Answer 9

For a 2014 Nissan Xterra you can use wiring harness #C56225, which you have referenced. This is the correct harness for an Xterra that did not come with a factory 4-Way or 7-Way trailer connector. The relays will be needed for the activation of the…

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Answer 10

It's pretty hard to say what the blue wire is for but the best way to identify what it does is to use a circuit tester like part #PTW2993 to test it when you apply various turn signals/brakes and see at what point it has voltage. Other things to…

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Answer 11

The #43605 wiring harness would be the only necessary part you would need to equip the 2006 Nissan Xterra with a 4-way plug, as this harness is made specifically for your vehicle and features a powered converter. A standard converter is used when a…

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Answer 12

The #HM43575 would work as a replacement, you would need to unplug your current harness and plug in the Hopkins in the 4-pole connector slot; you can see exactly where in the photo I've provided. I've also attached a link to a video review of…

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