Installing Trailer Brake Controller on 2014 Chevy 4500 Chassis

Question

Question:

I have on a motor home on a classc chev.4500 chasis with a 6.0 motor. Which wiring harness should I use for a tekonsha brake controller.

asked by: Roy L

1

Helpful Expert Reply:

If your 2014 Chevy 4500 chassis is equipped with the factory 7-Way connector then the needed brake controller wiring is already ran to the cab but there isn't an actual plug present to use with a plug-in brake controller adapter. In order to install your Tekonsha brake controller such as the Prodigy P2 # 90885 you will just need to connect the wiring pigtail on the controller to the existing wires under the dash.

Some models of the 4500 will have these wires under the dash near the emergency brake pedal but others have it taped and tucked under the driver side floor mat, up towards the firewall.

The factory wires should be labeled for function but if not you can test them with a circuit tester before making the connections. On the Tekonsha brake controller the blue wire is for brake output to the 7-Way, the red wire is for brake input from the brake switch, the black wire is for 12V power, and the white wire is for ground.

expert reply by: Chris R

1

Mike L.

8/29/2024

Hi. Mine doesn’t have either that you stated. The motorhome was supplied with the wiring harness but still can’t find where to connect. One side has a single large connector and the other side has two separate smaller connectors one with 2 wires and the other one has two wires. Any idea? Any help would be appreciated.

Chris R.

9/2/2024

@MikeL Interesting - the side with the two connectors is likely what plugs into the vehicle's factory port(s). Is there any way to contact the dealer you bought the RV from? They might have more information as to where it might be on your particular chassis.

Answer 1

The connector that you found under your dash is actually the OBD-II port which is why it doesn't quite match up with a brake controller adapter, like part #3034-P which fits Tekonsha and Draw-Tite brake controllers. Typically we find on…

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Answer 2

If you look under the dash of your 2017 GMC 4500 Cutaway there should be a wire bundle with white tape. You can probably find it to the left of the steering column. They may or may not be identified with a white label. I did some research on your…

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Answer 3

Sorry to hear about your issue! I recommend starting by unplugging the trailer brake controller for your 2008 Chevrolet Silverado and retesting the 5 o'clock pin on your 7-way connector. You should not have any power with the trailer brake…

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Answer 4

Thank you for all of the information and pictures! It looks like you should at least have some wiring already run on your 2019 Chevy Express Van 3500 so I'm just as confused as to why you don't have a round plug with a cap inside the…

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Answer 5

You are correct that the Plug-In Wiring Adapter #3034-P is what you need to install the Tekonsha Prodigy P2 #90885 on your 2016 Coachmen Freelander Motorhome with the Ford E-350 chassis. The location of the brake controller adapter is in the same…

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Answer 6

For your 2019 Chevy Express Van I recommend going with the Tekonsha Prodigy P3 #90195 brake controller. This is a great brake controller that applies the brakes on your trailer at the same time and with the same intensity as the brakes on your van.…

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Answer 7

For your 2017 Chevrolet Express Van we do have brake controller solutions but the vehicle does not have a port under the dash for installing a brake controller. Instead it has wiring available under the dash or sometimes the driver side floor mat up…

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Answer 8

If you had a factory connector it would be located at the exterior rear of your vehicle under the bumper most likely on the drivers side. If you have that plug you will need the Hopkins Connector #41155. If you do not have that plug you would need to…

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Answer 9

The Tekonsha P3 part #90195 is a great brake controller and would work well in your 2014 Chevy Express Van. There isn't a custom fit adapter for your vehicle to install a brake controller but I can help you wire your controller in. Express Vans…

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Answer 10

For your 2013 Chevy Express, the way to install a brake controller without splicing a lot of wires is to use the wiring kit #ETBC7. This will give you the brake controller wiring needed for your Hopkins controller and will connect to an existing…

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Answer 11

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 12

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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Installing Trailer Brake Controller on 2014 Chevy 4500 Chassis

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