A CURT custom wiring harness (also called a T-connector) is a simple, plug-and-play electrical device that eliminates the need for cutting, splicing and soldering when installing vehicle-to-trailer wiring.
Most vehicles do not come ready to tow. Unless your vehicle has a towing package, it is probably not equipped with a trailer wiring connector. This is where CURT's custom wiring harnesses come into play. Custom wiring harnesses plug into your vehicle's electrical system using original equipment (OEM) connectors. Our custom wiring harnesses use two or more OEM connectors to plug in at the taillight assembly and provide a standard trailer socket to allow a trailer to be plugged into your vehicle's power system.
This harness provides a 4-way flat connector socket and comes with a circuit-protected converter. It is designed to be a custom wiring harness for certain years of the Lexus HS 250h sedan or Lexus CT200h hybrid liftback (to verify your vehicle compatibility, see the CURT application guide at curtmfg.com). CURT custom wiring harnesses are long-lasting and quick to install. They come with dust covers to keep your connector clean when not in use and feature a one-year limited warranty to give you peace of mind.
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I just installed this on my 2012 CT200H and it works great. They wouldn't confirm, online or on the phone that it would, but knowing that they don't make major changes for a few years in cars, knowing it would work with the 2011 gave me confidence that the wiring was the same and it is. One thing though, they instructions are for the HS Hybrid and getting the panels out of the way to access the plugs was tricky. Follow the instructions and remove all the rear panels, but go further and remove the bolts on either side upper panel just under the windows. Also, the ,metal luggage tiedowns on the back wall. Now, you can gently pry the upper rear panel hiding the connectors just enough to get access. It is nearly impossible to remove it completely without going all the way forward and removing all the panels to the rear door. The passenger side is easy, the drivers side is very tight with no slack in the plugs. You need to slide a thin, flathead screwdriver into the male plug from one end to release the catch.(the bigger of the two plugs.) Other than that, the connections were quick and easy. I attached the white ground wire to the luggage hook, since it goes right into the metal body and that seems to be working fine.