Wiring Location to Connect a Brake Controller to a 2017 GMC Acadia

Question

Question:

HAVE A UNIT WITH NO FACTORY UNDER DASH PLUG. HAS BLUS/BLK/AND GROUND IN A SET OF LOOSE WIRES UNDER DASH BEHIND GAS PEDAL SKIRTING. ONE LEAD WHITE/BLACK STRIPE WITH IT HAS NO FUNCTION. ALL FUSES AND RELAYS IN. WHERE CAN I ACCESS A STOP LIGHT WIRE.

asked by: MATT

0

Expert Reply:

The stop light switch wiring is located behind your brake pedal on your 2017 GMC Acadia. See the picture for a visual.

If you are having trouble locating the wire you can use a Circuit Tester # PTW2993 to find out which wire sends a signal when the brake is depressed. You can use a Quick Splice Wire Connector # SWC501746-1 or a Butt Connector # DW05714 to connect the red wire from your brake controller to the stop light switch wire on your Acadia.

expert reply by: Jon G

0

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Answer 1

It sounds like you are definitely on the right track. On a 2014 GMC Acadia The plug for the wiring harness #C56245 should be behind a trim panel behind the passenger side wheel. Sometimes locating these plugs can be tricky, and vehicle manufacturers…

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Answer 2

The Tekonsha Prodigy RF Wireless Trailer Brake Controller #TK94FR must be mounted to the trailer in a certain way in order to function correctly. It cannot be connected to the tow vehicle. A better option for you is the new Curt Echo Wireless Trailer…

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Answer 3

Thanks for the photo and good information! The Curt Spectrum Trailer Brake Controller #C51170 doesn't come with a universal pigtail but that can be acquired with part #C51515. Then all you need to do is match the following wires from the pigtail…

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Answer 4

Hey Martin, it looks like the Curt Spectrum #C51170 is a universal part so it actually does not have a custom wiring harness. This brake controller is compatible with up to 4 axles, is assembled in the USA, and is compatible with ABS brakes, cruise…

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Answer 5

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 6

All the brake controller needs to sense a trailer connection so that you can test it is a slight amperage draw on the output circuit. For that you can use a circuit tester like the part #PTW2993 with one pin grounded and the other on the output pin.…

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Answer 7

Your brake lights and turn signals for each side are on one circuit. The left side turn signal and brake light is generally the yellow wire going into your trailer connector. The first thing to do is check the fuses on your tow vehicle. Next, inspect…

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Answer 8

It sounds like there is a short somewhere along the wiring of your vehicle or trailer that is causing a fuse to blow every time you connect. The first thing I recommend doing is disconnecting the trailer and using a circuit tester like #PTW2993 to…

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Answer 9

Hey Bob, thanks for reaching out! In order to get the Aries 20" Single-Row LED Light Bar #AA1501262 to work in tandem with your high beams, you're going to need to tie in the power wire to your high beam light circuit. I'm not sure what…

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Answer 10

You will first want to check the fuses on your tow vehicle. Some vehicles could have fuses for operating the turn signals and brake lights of a towing package. You will want to check if they are installed and working properly. The next thing is to…

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Answer 11

The 4-way on your trailer is what's known as a wishbone connector like part #A35W42B. Two of the wires are the running light circuit which is a little easier to install since you can run one down each side of the trailer. This way you don't…

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Answer 12

In order to convert the 4-way on a 2022 Ford Maverick to a 7-way you'll need the 4 to 7-Way with 4-Way part #ETBC7L. This kit comes with the actual adapter and everything else you need such as wires, connectors, and circuit breaker. It also…

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Wiring Location to Connect a Brake Controller to a 2017 GMC Acadia

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