7-Way Wiring and Brake Controller for 2017 Chevrolet Express 3500 15 Passenger Van

Question

Question:

Trying to find a harness to connect for trailer wiring. The van has the tow package and I see the Blue wire behind the parking brake indicating the wire are already run to the back. On the drivers side just inside the bumper is a pigtail/harness that I assume is the connection for trailer harness. It has a wide connector on the end, 1 is this the wire harness for trailers? 2 do you have a simple connector to get this done?

asked by: Todd

0

Expert Reply:

If your Express 3500's connector near the bumper resembles the round U.S. Car type connector in the photo I linked then this will be the trailer tow package connector you will use to plug in a 7-way trailer socket like # A10-7072VP or # HM40975.

With or without the tow package wiring you can still install a 7-way using the kit # ETBC7 you referenced along with a 4-pole harness # 118392 which plugs in at the tail lights. This setup will be independent of any factory wiring and it will provide a fully-functioning 7-way. These parts also serve to allow installation of a wired trailer brake controller like the Redarc Tow-Pro Elite # RED44FR or the Prodigy P3 # 90195.

If you're interested in a wireless brake controller setup that does not require you to mount anything on the dash you can accomplish this using similar kit # ETBC7L along with the 4-pole # 118392 and then use the Curt Echo # C51180. The Echo simply plugs into your 7-way and all you need to do is pair it to your smartphone. No other parts or wiring are needed. Please check out the linked videos to see how the Echo works.

expert reply by: Adam R

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Answer 1

Easiest solution is going to be to wire in the part #118392. Trying to track down why factory wiring isn't complete can be a headache, and since this wire kit installs by simply plugging in line with the factory taillights it will also install…

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Answer 2

Sure you can use the Hopkins Plug-In Simple Vehicle Wiring Harness With 4-Pole Wiring Connector #31345, however I recommend also installing the Universal Installation Kit For Trailer Brake Controller #ETBC7. This kit will utilize the existing 4-pole…

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Answer 3

Installing a 4-way wiring harness and converting it to a 7-way is the easiest way to get what you're wanting so you'll want to start by installing the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer…

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Answer 4

I cannot confirm what the harness you have pictured is for. However, it is not a trailer wiring harness. If you'd like to add a 4-way to your 2019 Chevrolet Express Van (assuming you don't have the factory tow package, of course), then you…

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Answer 5

We have just what you need. To convert your van's 4-pole flat trailer connector to a 7-way format to match your trailer you can use adapter #37185 from Hopkins. This simply plugs in to the 4-pole on the van and provides BOTH a 4-pole output and a…

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Answer 6

Are the taillights of your 2010 Chevy Express Van still functioning like normal? If so, then the T-One harness part #118392 will work and function the taillights of your trailer. It's hard to say what's going on with your current setup, but…

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Answer 7

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 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

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 10

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Answer 11

Lance does have a proprietary plug, but many customers see a standard 6-way or 7-way round and notice it doesn't fit their factory 7-way as well. I've attached an article to help if you have one of the 7-way or 6-way round connectors which we…

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Answer 12

Yes, we do. To add a hitch to your 2024 Toyota Grand Highlander, I recommend the Curt Trailer Hitch item #C26VV. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a…

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7-Way Wiring and Brake Controller for 2017 Chevrolet Express 3500 15 Passenger Van

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