What do the Brown and Blue Nissan Towing Package Relays Power

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Question:

I have a 2006 Nissan Pathfinder with a factory tow package that has the 4 pin flat plug already I stalled and a 7 pole adapter with the vehicle. I checked the relay box under the hood and there are only 2 relay plugs in the box. The center one, which has a blue relay in it, and the brown one, which is empty, to the drivers side. Do I only need the brown relay or will it require all 3 to make the tow package and controller work?

asked by: Caleb M

1

Helpful Expert Reply:

The brown relay that you are missing powers the 12 volt accessory circuit of the 7-way. If that is not a circuit you plan to use it would not be necessary to install it. The blue relays control the turn signals which it sounds like you may have already.

expert reply by: Jameson C

1

Answer 1

Absolutely, the three relays attach to the jumper harness that installs behind the passenger side kick panel. The large brown relay provides 12v power to the trailer connector at the rear bumper. It looks like you purchased the 4-pole harness,…

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Answer 2

To determine why you do not have any power on the blue brake output wire, I recommend starting at your brake controller. First, make sure the brake controller is on and receiving power. Most brake controllers have 4 wires, blue (brake output to…

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Answer 3

For the 2012 Pathfinders the relays are located under the hood. There should be a small black box, take the lid off of the box and there should be a legend that will tell you where each of the relays goes. See attached picture.

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Answer 4

The factory relays should just pull out of the fuse box, which will allow you to use the #C57000 to replace them with new towing relays. I've linked a review and installation video that shows the process.

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Answer 5

You are correct, you should only be getting output when the brake is applied, or the override switch is activated. It sounds like the controller might be bad, but to make sure, you should probably bench test it before tossing it. Use a circuit…

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Answer 6

I am not entirely sure what process you took so I'll give you some other things to try, or maybe a different way to test the Prodigy P3 #90195. First, sever the blue wire a couple inches from the back of your controller. Then use a circuit tester…

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Answer 7

It sounds like you have done everything but check the wiring on your brake controller so start by severing the blue wire a couple inches from the back of your controller. Then use a circuit tester such as #PTW2993 to test the end of the blue wire…

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Answer 8

The trailer brake output or blue wire is not connected on a 4 to 7-way adapter like the 4 to 7-Way with 4-Way Adapter part #ETBC7L when using a wireless trailer brake controller like the Curt Echo Wireless Brake Controller part #C51180. The two four…

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Answer 9

To cover the easiest things first, make sure that the brake controller output or gain is turned up. If the power is low then the voltage on the blue wire will be low. When testing for voltage make sure to use the manual override and not the brake…

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Answer 10

The most likely cause for the turn signals not to work when the running lights are on with your trailer is a bad or weak ground. It's very possible that a weak ground connection can be just strong enough to allow sufficient current for some…

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Answer 11

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 12

For your 2018 Nissan Titan I very strongly recommend going with the Redarc Tow-Pro Elite item #RED44FR over the Curt Spectrum item #C51170, which does use Wiring Adapter item #C51382 to connect to your 2018 Nissan Titan. The Redarc Tow-Pro item…

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What do the Brown and Blue Nissan Towing Package Relays Power

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