2014 Nissan Frontier Replacement Trailer Wiring Relays and Function

Question

Question:

I see on one of your QandAs that you mention on a factory 7 wire trailer harness that the blue relay behind the passenger side kick panel controls the trailer running lights. I have that issue with mine and found the relay. My right side turn signal/stop light is also out. Does the larger brown relay control that function. Thanks! 2014 Nissan Frontier

asked by: Danny

1

Helpful Expert Reply:

In your 2014 Nissan Frontier, the blue relay you mention is for the running lights and turn signal. The brown relay has to do with 12V power. You can replace faulty relays with the Curt Relay Kit for Nissan Aftermarket Tow Package # C57000. This relay kit includes 2 of the blue relays and one of the brown.

expert reply by: Jason S

1

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Answer 1

It could be a tow package fuse on the vehicle. Use the owners manual to find the locations of fuses/relays related to the tow package wiring to check them and replace as needed. If the issue is not a fuse or relay then you can test the vehicle side…

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Answer 2

The most common cause of no trailer running lights on a 2014 Nissan Frontier is a faulty blue relay, so this would be the first thing I check. This relay is located behind the passenger floorboard kick panel which you can see in the attached photo.…

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Answer 3

In the passenger side pick panel will be a harness that has a blue relay on it. That is the one that is used for the trailer running light circuit. I attached a picture of where the relay would plug in. If you need a replacement, we the blue relay in…

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Answer 4

We don't sell the white/brown relay by itself, but we do offer all three relays for the running lamp, right turn/brake and left turn/brake lamps as the part #C57000 that you've looked at. These are the correct relays needed to activate the…

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Answer 5

If your 2012 Nissan Frontier has a 7-way trailer connector then you will need to use both blue relays as well as the brown relay. If you only have a 4-way trailer connector then you would only need to use one blue and one brown relay. If you do not…

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Answer 6

If you indeed had the factory tow package on your 2010 Nissan Frontier then the trailer wiring relays would be located under the hood in the fuse panel next to the battery. If the relays are located under the drivers side kick panel then your vehicle…

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Answer 7

On many Nissan vehicles like your 2014 Pathfinder, there is actually a third blue relay that needs to be installed in order for the trailer running light circuit to be activated. The running light relay is located in the relay harness behind the…

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Answer 8

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 9

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 10

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 11

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 12

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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