The harness flows from the front of the vehicle where the brake controller plugs in (generally speaking) to the 7 pin connector near the hitch receiver at the back of the vehicle. The trailer plugs into the 7 pin connector.where does that connector go at the other end? Where do you find the connector to hook up the electric brake cable from the trailer?
The dealer rep was "smoking something" and clearly incompetent. Your vehicle has the plug up front. With the installation of the OEM hitch receiver kit, the electricals in the back were also installed. And Premium, Limited and Touring (US designations) ALL have the 5000K towing capacity. Only the "base" model doesn't.The first person that I spoke to at our dealership said that the connector wouldn't be there unless our vehicle had the tow package installed at the factory. They also said that I wouldn't be able to tow up to the 5k pounds because we also wouldn't have the intercooler for the same reason, but I thought that was standard on the Premium and above. None of this seems to match what I've read on this site... am I missing something here?
I'm reposting lost pics to an old post, in response to a message from @altitudewrenchI installed a Tekonsha Prodigy P3 brake controller. Interested in feedback on the location, from you folks who've done this before (this is my first time). I can reach down and touch the unit easily without taking my eyes off the road - this is needed in case I use the manual lever, right? Anyway, it's easy to access, and doesn't get in the way, even when getting in and out of the driver's seat.
I saw a mounting opportunity using the fuse box door by the driver's left knee. With a brand new car, I'm a little shy to drill holes through anything expensive or hard to replace. I purchased a new fuse box door from Subaru (p.n. 66135AJ020VH door, and 82245XC00A label) and mounted the wide P3 bracket to it. The fuse box door closure tabs are barely strong enough to hold the additional weight of the controller and bracket, so I added magnets on the door and steel brackets to the opening.
The dash is a little curved, so to get the P3 parallel to the direction of travel, I skewed it in its mount a little.
The mounting is very solid and clean. I might pick up some thumbscrews to replace the side philips heads so I don't need a tool to tighten or align the controller in its bracket. To remove the controller, I open/un-hinge the door, tilt the controller forward, and unplug the cable plug.
Since the controller doesn't have on/off, I guess I have to unplug the unit when not towing anything. It's good to keep it out of sight when it's not needed anyway.
Now all I need is a trailer with a brake!
Edit: This is on a Touring with factory tow hitch option, so I found the open connector in the panel by the driver's left foot per the posts and pics above (thanks!!), and the dealer left the wiring harness in the glovebox. Soldered same color Tekonsha wires to same color Subaru harness wires. Hardest part was clicking into the open connector... not much slack there at all.
Hello. I just purchased a 2020 ascent and had the towing package installed at the dealer. They told me (and Subaru customer service verified) that the 2019 version of the kit had a brake controller wiring harness but in 2020 that part is not available anymore. Now my RV dealer says he can't install the brake controller. Is the adapter above a fix for the missing piece? I've included a picture from a video of the 2019 hitch install I found online. Thanks!Here's one I found works;
Trailer Brake Controller Wiring Adaptor- Teckonsha
Fits all Reese, Tekonsha, Draw-Tite and Pro Series Brake Controllers
And I just took out the plastic tray under the hinged cover where the jack and tools are. It's not under there, either. But thanks for letting me know it came with your car. Maybe they can order the part for me if they're not looking for it as part of the hitch kit.Thanks! When you say 'under the panel' did you remove the plastic cargo tray that the tools and jack are in to get to it? I've checked everywhere but there. In other words, I've taken off the rubber mat and the hinged door. It's not in that area.
That looks like the correct harness. Mine was in my glovebox after they installed the hitch. I'd check all your little cubbies.Glovebox, center console, rear storage tray just to verify you haven't missed it.Hello. I just purchased a 2020 ascent and had the towing package installed at the dealer. They told me (and Subaru customer service verified) that the 2019 version of the kit had a brake controller wiring harness but in 2020 that part is not available anymore. Now my RV dealer says he can't install the brake controller. Is the adapter above a fix for the missing piece? I've included a picture from a video of the 2019 hitch install I found online. Thanks!
Thanks. Looked everywhere in the car to no avail and two dealerships here in middle TN tell me that part is not available. Looks like I will need to help myself because subaru isn't any help at all. I see that theme in quite a few posts above.That looks like the correct harness. Mine was in my glovebox after they installed the hitch. I'd check all your little cubbies.Glovebox, center console, rear storage tray just to verify you haven't missed it.
I was just installing mine today. Could you send me some pics of your set up? I actually have the unit hiding in the fuse box but I like your ideas... [email protected]Genius!! I was looking for a <$100 way to do this on the wife's car so that it wasn't 'permanent'. Thanks to you and the OP I've got a plan.
I too had problem finding the pigtail for the brake controller wiring harness. - Your pics helped! Thanks! Not sure why anyone thought it was a good idea to make some like that so hard to get to.Thanks to earlier posts (and no thanks to Subaru) I found the male end of the controller harness plug under the driver-side dash. For the benefit of others trying to find it, I have attached pix of the location including photo titles. Prodigy P3 Controller arriving from eTrailer on Monday - expect easy install.