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Install your electric brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your brake controller and then plug the other end into the built-in harness beneath your 's dash.
Features:
This adapter plugs into the 5-pin connector on your vehicle's built-in brake control wiring harness. The harness is located underneath the dash, to the left of the steering column, taped to another harness near the emergency brake pedal.
To install your electric brake controller you need to connect the wiring of the controller to your vehicle. Certain manufacturers offer pre-wired options, typically known as tow packages, wherein these wires are run for you from the dash to the trailer connector on the back of your vehicle. Often, a brake controller wiring harness is included with your tow package. This harness plugs into a port beneath your dash and connects to the four wires of the brake controller. If, however, you have a brake controller with a plug in place of the four loose wires, you can use the Tekonsha adapter.
This adapter requires no hardwiring. It is designed to plug directly into your electric brake controller for the simplest installation possible. Because there are no wires to connect, installation is not permanent. You can unplug and remove your brake controller at any time and securely stow it away.
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Average Customer Rating: 4.9 out of 5 stars (1315 Customer Reviews)
Install your electric brake controller quickly and easily with this custom wiring adapter. Simply plug one end of the adapter into your brake controller and then plug the other end into the built-in harness beneath your vehicle's dash.This makes trailer brake installation easy. It fits perfectly
The Tehonsha Plug-In wiring adapter #3040-P fit just like it is supposed to in the 2015 Lexus KX 570. Also etrailer staff was very active in keeping me updated on my order progress and arrival. Also when I had trouble finding the KX side of the adapter the etrailer helped by providing articles and pictures. I am very pleased with my encounter with etrailer.
It seems like only etrailer could get hold of this! You do have to find a place to ground it. On my Toyota, found a small hole by the parking brake that I could nut & bolt the ground wire to very easily and very much out of the way.
I use this with a Primus brake controller mounted right of Steering Wheel near R knee. I can easily tuck up the wire yoke under the panel hiding other wires and it stays out of the way until the next time I need to hook up the brake controller and tow.
2010 Toyota Sequoia Limited plugged into factory harness. Worked great
It would be easy to have this part order and install on the Tundra. i went one step further and end up using the wiring in the box with P3 Trailer brake and had to splice the wiring to make longer extension in order to install the P3 in the empty slot between the lighter and 12v socket which make is more customized look and out of way. Would be cool if they offer longer version for someone who want to install it somewhere else behind the driver's spot zone.
Purchased brake controller for my 2014 Tuna. excellent order/shipping/receiving time.Received everything I needed with order in a very timely fashion. Website made it very easy to find and decide on exactly what I wanted. Etrailer will be my first choice for finding the accessories I need in the future. Purchased Tekonsha P3 brake controller and is the best thing to a factory installed controller I have encountered.
Pictures of the install. Approximately a 20 min job. First picture my finger is pointing to the factory plug with the etrailer supplied harness plugged in. Note the harness did not specify that the white common with the ring terminal should be connected to ground. But then again that SHOULD be obvious. I will be towing this weekend so I will rate the product then. One minor gripe is that there is always power to the unit which is a battery drain (as evidenced with the key out of the ignition and the unit stayed on) Not sure as to the impact but the controller can always be unplugged or removed.
Sorry for the dirty floor mats in the photos.
Avoid the etrailer made harness.it has been nothing but problems. The connector at the brake controller disconnects power if the cable is bumped. Pretty scary to loose trailer brakes when you are slowing in a hurry!
I tried several times to make the existing connector work and finally cut it off and wired the one that came with the tekenosha controller.
Save your money and just splice your own.
Etrailer is great with their competent staff & instuctional videos.
Made 7000 mile trip last summer to northwest and back with no problems associated with trailer braking.
Install is very easy once you locate the vehicle's brake controller plug. The plug in a Tacoma is extremely well hidden. It is high above the driver's side kick panel taped behind a plug wrapped in foam. I have attached a photo to help you locate it in a late model Tacoma. Once I found the plug, the install took less than 20 min. The controller works great.
We ordered a part for the 2008 Land Cruiser and was told that it's the same installation. IT IS NOT! The connection to the harness is not in the same location as Tacoma. After looking for more than an hour, I got smart and found some info on another website. Even the manufacture has the info wrong. So, if you have a 200 series Land Cruiser, your plug is located under the dash behind the switches for the mirror. You will need to take apart the lower dash panel and then push out the switch panel. There is no need to detach any switch, it all hangs out just fine. See photos for the location of the plug. Plug the adapter in from there you can follow the instructions.
Would have given 5 stars if the wiring would have been long enough to be useful. Instead of plug and play, had to solder additional wiring.
Well constructed. Made the job easy. Installed on left side of steering wheel. If installing on right, the cable may not have been long enough.
Installed P3 this weekend in 2013 Tundra Crewmax with towing package and pre-wire. Extremely easy, even with the center console installation. Will let the photos tell the story. Did have to combine the P3 included harness with the additional OEM harness to gain the length I needed. Plug and play with the pre-wire. Hooked up to trailer and set boost levels for varying loads. Works great! Vast improvement over older model Tekonsha controller in my Ram 2500 Diesel. Pull a Kiefer BP horse trailer: about 3600 lbs empty, 7500 with 3 quarter horses and gear. Usually pull 6-8 times per year, with only 1-2 horses. Short distance and flat terrain. It took about an hour to install. Dad is a retired USAF/FAA radar technician with every tool known to man. He QC'd the job. Will try to write better review later.
Easy to install. Owners manual had location of factory plug and we installed the entire system in less than an hour. We used the removable bracket so the unit can be stored in the case that was included with the controller when not towing so it is completely out of the way of the drivers legs and knees. We are a collision repair shop and I would rate the ease of installation as relatively easy if you just use common sense and consider wiring location and controller location BEFORE drilling holes in the plastic lower dash cover. Also need to be mindful on the lower air bag that protects the drivers legs in a serious collision and the routing of the wires if you install it on the right side of the steering wheel. We used wire ties and a small plastic wire holder to place the wiring in a secure place that does not rub through the wire insulation or get snagged by the drivers feet. See the attached photos. All work was performed in slightly less than one hour.
I had some confusion about how to set the trailer brake, so I called Tekonsha,and was told how to set it up. After that I have had no problems with the unit. as far as I can tel, it works very well.
I have never towed anything that had trailer brakes, so when I bought my Coachman, I ordered the unit from you knowing I was facing a learning curve, but it has worked out well.
I tow a 2018 Coachman Clipper, weighing close to 3700 pounds. Just the right size for my wife and I. I use it for hunting, fishing, and wild mushroom collecting.
I bought a new trailer and wanted to go camping. I did not have a brake controller. I called around and to get a Prodigy P2 installed it would be a 2 hour drive to the dealership plus about $200 bucks for parts and another $115 for an hour of labor.
I found this website, got the prodigy P3 plus 2 day shipping and installed it with their super simple video in 15 minutes all for less than $200. I was very pleased to say the least.
I highly recommend them. Service was outstanding! Video instructions spot on and simple.
Fit right in. Had to open the eye on ground, was tad too small, but fit and worked with a nice abrasion shield on wires
I picked up the redarc brake controller and sumo bags. I installed both today. I have to say I'm excited to use both when I pick up my travel trailer. The Redarc is so clean! It might have taken me an hour to install but that was just bc I was deciding how I wanted to run it .
Sumo bags took an hour to out on! I cant tell you how great they work yet. But the install was a breeze.
Definitely worth buying the "factory plug-in adaptor cable." It's low cost insurance that wiring connections will not be an issue. Save yourself frustrating troubleshooting.
Incredibly easy, plug and play. Took less than 10 minutes to install my brake controller from start to finish because of this adapter.
2004 Toyota Sequoia 4WD with tow package
No hassle hookup. etrailer was awesome, they shipped my P3 and this connector immediately and provided great tracking. They also followed up afterward. Excellent customer service!!! Real customer service is hard to find these days. Thanks etrailer!!!
I haven't towed my travel trailer yet but the controller is installed in my 2008 Tundra and looks great. Everything seems to be working as it should. I can't wait to try it out. Regards, Dale V.
Great service and great product. Easy to install and makes moving equipment on my trailer much better
All good. Right part to connect Tekonsha Prodigy P3 to 2007 Toyota Sequoia.
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