etrailer | Trailer Wiring 7-Way Upgrade Kit Feature Review

[@dalenolden1875]

Thanks very much for creating all the videos. I did complete successfully install an electrical brake system on my trailer.

[@andyelmaleh5129]

What an awesome lift for trailers

[@tommcdonald53]

may I suggest that you leave a little slack in your box for reconstruction if you have a corosion problem and seal with Lear silicone.

[@scottkiilsgaard2717]

Where did the red wire magically come from at the end?

[@Securitydude83]

He landed it on top of the black wire which he said was 12 volt power.

[@turbotension]

For the product listing on the website, why do some people’s wire colors match, but the ones in this video don’t.

[@etrailer]

It just depends on the manufacturer of the trailer and what colors they chose to use on their trailer. We have a wiring color code on the product page for this connector. www.etrailer.com/Accessories-and-Parts/etrailer/ET7WK.html

[@SimpleMan9841]

Where did you come up with your color usage for the 7 conductor cable

[@etrailer]

The best way to tell is to test the pins on the vehicle's 7 pin connector and match them up to the correct pins on the trailer plug. www.etrailer.com/Accessories-and-Parts/etrailer/ET7WK.html

[@nicholasbrown6481]

Why wouldn't you just use the correct color wires coming out of the plug? Brown for taillights and green to green and yellow to yellow?

[@etrailer]

You don't ever want to rely on color coding when it comes to wiring a trailer. Always make connections based off of wire function, not color. We have many trailers that come through our shop, and it is shocking how often we see wiring issues due to connections based off wire color rather than wire function. For the application in the video the trailer wiring is your traditional set up (brown = tail lights, yellow = left turn and brake, green = right turn and brake, white = ground). The 7-way is pre-wired and the colors don't match up (green = tail lights, red = left turn and brake, brown = right turn and brake, white = ground). That is why the connections were made based off of function rather than color. www.etrailer.com/Wiring/etrailer/ET7WK.html

[@BartHull]

I just installed one of these. It is GREAT if you have electric brakes (I do on both axles), a runaway system, and interior lights and the runaway charging system. Multiple wires to single posts. Solid connections and easy to change if you put the wrong wire in the wrong place. Was the same cost as a 7 pin plug with 8 ft cord. Highly recommend.

[@bluebird5100]

What did you use to test the trailer wiring at the end?

[@etrailer]

We use a tester box that sends the correct signals to the tail lights. You can use a 7 pin on the rear of a vehicle to test them. www.etrailer.com/Wiring/etrailer/e99011.html

[@larrysepicmovies5044]

How do you wire in the BREAKAWAY batter with this system.

[@Mazel_Tov_888]

is the 12v power wire in the same pin location on all trucks? meaning can trucks from different manufactures connect to a trailer that has a charger and battery, and be able connect so the trailer has power?

[@etrailer]

The pin placement on a 7-way trailer connector is standardized. The 12-volt pin will always be in the 1:00 position.

[@Mazel_Tov_888]

@@etrailer what parts do I need to plug into my 7 pin and charger a battery? How do I get that 12v there?

[@luisuranga9212]

Hi I don’t have power coming out from my truck Cummins 2012 can I connect it straight to de power (black wired)

[@etrailer]

I would check your factory wiring to make sure there is not a short or issue with the wiring. But yes if there is something wrong with the factory wiring you would want to disconnect the old connection and make a new one.

[@707SonomaComa]

Seems like that was so much work, why not just re-wire the trailer wiring to the 7 blade connector with the proper color coded wiring?

[@warrenmichael918]

junction boxes make it easier to add to or find wiring problems in the future. I agree about him using the non standard color for it though.

[@kenmoore3837]

When adding electric brakes to a random axel trailer, do you add them to all 4 wheels?

[@perecarl12]

Which wire controls the brakes? sounds like wires are only used for lighting (indicator and stopping).

[@etrailer]

The blue wire is the brake power wire. Check out the link below for some additional information. www.etrailer.com/Wiring/etrailer/ET7WK.html

[@deltannerjr]

What kind of hardware did you use to fasten the junction box to the frame of the trailer?

[@chrispy725]

The screws he used are called self tapping screws

[@hawkdaddy64]

Red is generally used as reverse

[@albion2742]

WHICH WIRE WOULD POWER THE TRAILER INTERIOR LIGHT

[@etrailer]

It depends on preference. If you want the light to be able to come on without the trailer connected to a vehicle, then you would use the 12 volt power wire to trickle charge a battery, and then have the interior light feed off the battery. If you don't mind having your vehicle connected to the trailer when wanting to use the interior light, then you could use the tail light wire to power the interior trailer light, or you could use the 12 volt power wire.

[@1953Hardwork]

The colour combination is not to standard wiring code has used random colours will not compatable with in other vechical

[@etrailer]

You will want to check your wire functions because of the difference in the colors.

[@arnoldoflores7287]

To faster I don't see I need connect my trailer