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Trailer Brake Controller Installation - 2010 GMC Acadia

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How to Install a Trailer Brake Controller on a 2010 GMC Acadia


Today on our 2010 GMC Acadia we'll be installing the Etrailer Universal Install Kit for Brake Controllers, part number ETBC7 in conjunction with the Tekonsha Prodigy P2 Brake Controller, part number 90885. In addition we'll be using the Draw Tite No Drill Mounting Bracket, part number 18136.We'll begin by installing the seven pole bracket onto our seven pole connector. We'll use the hardware provided with our install kit securing the bracket to the connector. Then we'll take the no drill mounting bracket and secure it to the seven pole bracket with the hardware that's included. Now before I install the bracket onto the vehicle I'm going to go ahead and take some black electrical tape and wrap up these wires.Note for our application we'll not be using the purple wire which is for reverse trailer lights so we'll go ahead and clip it off as it will not be necessary. We'll wrap it up all the way until our first connection point.

Next we'll take the wires and place them through the mounting plate. We'll then place the mounting plate onto the previously installed hitch, drop the wires behind the hitch and install the worm clamp to tighten it down.Take the four pole currently on the vehicle and install it into the four pole coming from our seven pole connector. Note between these two connections I'll also be using the Edelmann Dielectric Grease, part number 11755. Now with that connection made I like to secure this connection with an additional zip tie wrapping around the connectors and then we'll cut off the excess from the zip tie.Next we'll need to go ahead and connect the gray duplex cable to the black and blue wire from our seven pole connector. We'll take the gray duplex cable, strip back several inches and then strip back the wires.

We'll connect black to black and the blue from the seven pole connector to the white on the gray duplex cable. Now with all these connections made we'll go ahead and take our black electric tape and continue wrapping up the wires.Then we can go ahead and start routing our wires. We'll take the gray duplex cable and feed it along the frame up towards the engine compartment and our white wire here with the pre-attached ring terminal over to the frame where we'll use the self-tapping screw provided with our install kit to secure it. When routing your wiring you want to be especially careful to stay away from moving components and steering your suspension or excessive heat such as exhaust.Note as necessary we'll use some black zip ties to secure our wiring underneath the vehicle. Note to assist in routing our wire we may also use a pull wire or a piece of air tubing to assist in routing the wire in this case through the frame channel.

Next we'll move inside the vehicle and remove the kick panel underneath the dashboard above the gas and brake pedal. There are a total of three push pin fasteners to be removed.We'll go ahead and use our trim panel tool to pry the center of the fastener out and then remove it. Once we have all three fasteners removed we'll go ahead and remove the kick panel and set it aside for reinstallation later. For this application we're going to use one of the manufacturer's grommet. Once we locate the manufacturer's grommet we'll run the gray cable up to it, mark it and then cut the gray sheathing back so that the white wire can run into the cabin and the black wire we'll run to the top of the engine bay.Now we can make a cut in the grommet with our side cutters here and push it back into place.

We'll then take our white wire from the gray duplex cable, route it through the cut in the grommet and pull it inside the cab and cut the length. We'll place a piece of blue tape around it to signify it from the blue wire on our seven pole connector. Now for this application we're going to go ahead and add an additional ten foot piece of the gray duplex cable.This will be necessary to run the power and ground for our brake controller. We'll take this additional piece and route it into the cabin of the vehicle following the white wire we previously ran. Now we can move inside the cabin of the vehicle and start mounting our brake controller and making our connections inside the cabin. First we'll mount the brake controller pocket here below the steering wheel near the console is a great location.We'll use the screws provided with the brake controller install kit. Next we'll need to locate the brake switch signal. On the driver's side near the parking brake pedal there's a manufacturer's tow port that we can access this wire from. This wire will only be hot when the brake pedal is depressed. Utilizing our test light we can go ahead and test this port for the correct wire. For this application it'll be the white wire coming from the tow port.To connect the red wire from our brake controller harness we'll use the quick splice connector. We'll feed the quick splice connector over to the manufacturer's wire then route the red wire from the brake control pocket over to the quick splice connector feeding it into the quick splice connector crimping it down and closing the clasp. Next we'll take the brake control harness and tape up the remaining wires together.Next we'll go ahead and trim off some of the length of the three remaining wires and we'll strip back each end. Then we'll move to the wires that we ran into the cabin of the vehicle which it'll be the white wire which comes from the blue wire from our seven pole connector and will be the power for our trailer braking. Then the gray duplex cable which we ran for power and ground for the brake controller.We'll strip back each one of these wires, add a yellow butt connector provided with our install kit and crimp them down. Now we'll go ahead and start making connections. We'll take the white wire with the blue tape and connect it to the blue wire for the brake control harness. Again this is for the power for the trailer braking. Then we'll connect the black wire from the gray duplex cable to the black wire for our brake controller and then white to white.Now with all our connections made we'll go ahead and take some black electric tape and wrap up these wires as it will assist in keeping the wires together and provide a clean install look. Now with all our wires wrapped up we'll go ahead and route the connector into the brake control pocket and connect it to the brake controller installing the brake controller into the pocket.Next I'll use several zip ties to secure the wiring up underneath the dash and then cut off the excess from the zip ties to clean up our install look. Now we're ready to go ahead and reinstall the kick panel. We'll slide the brake control harness between the trim panel and the consult panel and reinstall the lower kick panel and the three push pin fasteners. Now we'll move into the engine bay.Here we'll take the black wire and the gray duplex cable that we added additionally for the power and ground for our brake controller. Next we'll need to run them over to the passenger side where we can make connection with power and ground. To do this we're going to drill three small holes in the plastic trim panel going across the top of the engine bay. Then we'll take some black zip ties and secure the wiring as we route them over.Now we're ready to go ahead and start mounting the breakers for our power wire. Note it may be necessary to remove the ground stud to make it easier to install these self-tapping screws. We'll mount our 40-Amp breaker for the black wire coming from our seven pole connector and a 20-Amp breaker for the power going to the brake controller. We use the self-tapping screws provided with our install kit to secure the breakers here to the passenger side fender well.Next we'll go ahead and cut off the excess from the wires. Now with our breakers secured we'll go ahead and strip back our power wires and add small ring terminals. The white wire from our gray duplex cable will get stripped back. We'll add a large ring terminal and secure it underneath the ground stud. Then we'll install the ring terminal onto the silver side of the breaker securing it with a serrated washer and then a nut.Next we'll need to run the hot wires or hot leads going from the breakers to the positive battery post here at the side of the fuse panel. We'll go ahead and remove the positive battery post cover then we'll take the remaining wire from our gray duplex cable, strip back two ends and add two ring terminals.We can then secure them to the copper side of each breaker. Next we'll go ahead and route the wire over to the positive battery terminal and cut to length as necessary. Then we'll strip back both ends and add two large ring terminals. We'll remove the nut from the positive battery terminal stud, install the ring terminals and then re-secure the nut. Once it's re-secure we'll close the cover on the positive battery terminal.We can now reinstall the ground stud. Now once we finish our install we'll go ahead and cut off the excess from the zip ties to clean up our install look and this will complete our installation of the Etrailer ETBC7 Universal Install Kit for Brake Controllers along with the Tekonsha Prodigy P2 Brake Controller, part number 90885 in conjunction with our Draw Tite No Drill Mounting Bracket, part number 18136 and the Edelmann Dielectric Grease, part number 11755 on our 2010 GMC Acadia.


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