What is the Function of Purple Wire on 7 Way Vehicle Connector for 2011 Nissan Pathfinder

Question

Question:

During install about half way through the video the purple wire with a butt connector is not used. The installer screws the ground to the frame of the vehicle then moves on. I assume this wire is intended to connect somewhere for full functionality of the 7 pole connector. Can you provide instructions to complete?

asked by: Jason K

1

Helpful Expert Reply:

The purple wire on the Hopkins 4 Pole to 7 Pole Adapter, # 37185, is typically used for 12V power or reverse lights. You will want to determine the function of the center pin on your trailer's connector. If the center pin is used for reverse lights, you will need to locate the reverse light circuit on the 2011 Nissan Pathfinder and splice that together with the purple wire. If it is used as an auxiliary 12V power circuit, you would run the purple wire to a 40 amp circuit breaker like, # 9510, and then to the battery using additional wire like # 10-1-1.

Our local customers that come in for installations allow us to record the process and this is where our videos come from. In this case, the customer did not plan to use this circuit so it was not connected.

expert reply by: Leah S

1

Answer 1

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Answer 2

Since your trailer's brakes worked on another truck that would indicate that the problem is on the truck side of the equation. First and easiest thing to check is to check for corrosion on your truck's 7-way. Some fine grit sandpaper can…

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Answer 3

We have put together a kit that includes all the parts you will need to set up the rear wiring for a 7-Way and prepare the truck to install a brake controller. The kit is part #ETBC7. It will utilize the 4-Way that is already installed and then you…

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Answer 4

The colors that GM typically uses for their factory trailer wiring are as follows - Dark Green - Right Turn/Brake Lights Yellow - Left Turn/Brake Lights Brown - Tail Lights White - Ground Light Green - Backup Lights Blue - Electric Brakes Red/Black -…

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Answer 5

If the leaf spring stack is currently attached below the axle, which is what it sounds like, then you can use an over/under conversion kit. If the axle is 3 inches in diameter then you can use #K71-385-00. If the axle is 2-3/8 inches in diameter use…

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Answer 6

The black wire of the Hopkins 7-Way Molded Trailer Wire Connector #HM20048 carries the 12 volt accessory circuit. This is the circuit that will typically power interior lights or charge a trailer's battery. I attached a help article that covers…

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Answer 7

The easiest way to go from a 7-way round connector to a 7-way flat would be to get a Trailer Connector Adapter part #HM47425. However, if you are looking for a more permanent solution you would need to remove your 7-way round connector and wire up…

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Answer 8

The black wire is the 12 volt power source that you could use to help maintain the charge of a battery or for any other 12 volt accessory. I would recommend that you use 10 Gauge Blue Primary Wire, part #10-1-1, through a 40 amp. In-Line Circuit…

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Answer 9

It's a wire color difference but not a function difference on the pins of the 7-way. The difference comes from the fact that the two different styles are representative of two different areas that uses trailers. Traditional is usually seen on…

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Answer 10

The problem you are experiencing sounds like a ground issue and/or short circuit. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or…

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What is the Function of Purple Wire on 7 Way Vehicle Connector for 2011 Nissan Pathfinder

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