Brake Controller and Trailer Wiring Installation On a 2007 Jeep Commander

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Question:

Hello, I have an 07 Jeep Commander without any factory wiring for trailer towing. Can I install a brake controller wiring kit if I first install a 4-way wiring harness?

asked by: Nick H

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Expert Reply:

Yes, you can install the Brake Controller 7 & 4 Way Installation Kit, item # ETBC7, on your Commander as long as you install a 4-Way trailer connector first. The 4-Way wiring harness for your 2007 Commander is the T-One Vehicle Wiring Harness, item # 118408, and will be installed inline with the vehicles taillight connectors.

Once you have the 4-way connector installed you will need to wire a brake controller, I would recommend the Prodigy, item # 90885, and the # ETBC7 kit. The blue wire from the brake controller will be ran to the trailer connector with wire included in the kit. There is also a wire to connect to the vehicle battery through an, included, 40 amp circuit breaker to the trailer connector. Next you will splice the red wire from the brake controller to the stop light switch wire behind the brake pedal connector. This is the wire that has no power until the brake pedal is pressed. Finally you will run ground and a power wire, through a circuit breaker, from the brake controller.

If you need auxillary power for the trailer or the backup light function, you will use the center pole yellow wire to connect to the source needed.

expert reply by: Robert G

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Answer 1

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 2

If your 2007 Jeep Commander came with the factory tow package then it should have a factory 7-Way trailer connector at the back of the vehicle. You would follow this connector back to where it plugs in and that is where you would install #118381. If…

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Answer 3

Hey Anthony since you had the factory 7-way you'll need the Curt T-Connector Vehicle Wiring Harness item #C55381 to add a 4-way connector. Additionally, if you wanted to keep a 7-Way and add a 4-Way you can install the Multi-Plug T-One Connector…

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Answer 4

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 5

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 6

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 7

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 8

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 9

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 10

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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Answer 11

Hey Ricardo! Yes, the Curt Trailer Hitch Receiver #C82RJ is the hitch Curt is working on for the new 2027 Telluride. This is a pre-order since Curt hasn't finished the design. It does not include wiring. The wiring harness for the 2027 is also up…

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Answer 12

Hi David! There are quite a few hitches offered for your 2026 Honda Odyssey, so I definitely understand wanting to know the differences. There are basically three styles available for you and I have them broken out below: Exposed Crosstube: etrailer…

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Brake Controller and Trailer Wiring Installation On a 2007 Jeep Commander

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