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Tekonsha
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2016 - 2019 BMW X1
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Tekonsha T-One connector (also referred to as T-Connector) wiring harnesses are the fastest and easiest way to add an electrical connector to the back of your vehicle. These connectors are used to link the wiring from your vehicle to the trailer when towing. Tekonsha T-One connectors feature custom designs to fit each vehicle make and model based on manufacturer specifications. Plus, the Plug & Play connectors on the end of the wires make it easy to install. No cutting or splicing!
Tekonsha offers the largest, most complete line of T-One connectors. To install a Tekonsha T-One wiring harness, simply locate your vehicle's wiring harness connector typically behind the vehicle taillight - unplug the connection and insert the T-Connector into the vehicle's harness. It's that easy! So what are you waiting for? Hit the road with the peace of mind only Tekonsha can provide. Life's a Journey. Stop Often.
| BRAND: | TEKONSHA |
| PART NUMBER: | 118717 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.75 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | YES |
| HARNESS TYPE: | MALE FEMALE |
| TERMINAL QUANTITY: | 4 |
| WIRE COLORS: | BROWN, GREEN, YELLOW, WHITE |
| WIRE QUANTITY: | 4 |
| WIRE GAUGE: | 16 GA. |
| POWER LEAD REQUIRED: | YES |
| ELECTRICAL SYSTEM TYPE: | 3-WIRE SYSTEM |
| HARDWARE INCLUDED: | YES |
Tekonsha is a leading manufacturer of electronic trailer brake controllers, pioneering the category in the 1970s. The lineup spans proportional units such as the Prodigy P3 and Prodigy iD, time-delayed controllers, the wireless Prodigy RF, plus vehicle-specific wiring harnesses, adapters and trailer brake components engineered for smooth, predictable stopping at any speed.
Tekonsha Engineering Company began in 1964 building RV steps and mirrors. Within a few years it had found its real calling, and by the 1970s Tekonsha was pioneering the manufacture of electronic trailer brake controllers, the product category that still defines the brand. More than half a century later it remains the reference name in trailer braking and is part of the Horizon Global group alongside Reese, Draw-Tite, Fulton, Bulldog and Wesbar.
A brake controller is the component that tells a trailer's electric brakes how hard to work and when, and getting that right is the difference between a controlled stop and a shove from behind. Tekonsha builds both major types. Proportional controllers use an internal accelerometer to sense how quickly the tow vehicle is slowing and apply trailer braking to match, so light braking stays light and hard braking is immediate. Time-delayed controllers ramp to a preset output over a fixed interval, a simpler and more economical approach that suits occasional towing.
The current brake controller range covers most of that ground. The Prodigy iD pairs with a phone through Tekonsha's EDGE technology for setup and monitoring, the P3 offers storable settings for multiple trailers and a trilingual colour LED display, the Prodigy P2 adds a dimmable display and boost mode for heavier loads, and the Voyager keeps operation simple and dependable. The Prodigy RF mounts to the trailer itself and controls wirelessly, which suits rental fleets and drivers who swap tow vehicles.
Installation is supported by vehicle-specific brake control harnesses that plug into a factory connector rather than requiring cut-and-splice wiring, along with mounting brackets and adapters. Matched controller bundles pair a unit with the correct harness. Products are tested to meet and often exceed published industry standards.
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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2016 - 2019 | BMW X1 | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes |
Yes, the 2016-2019 BMW X1 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118717 (Part #TK118717) is designed to fit the 2016-2019 BMW X1.
The 2016-2019 BMW X1 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118717 (Part #TK118717) fits the following vehicles: 2016-2019 BMW X1. Always verify your specific year, make, and model before ordering.
The 2016-2019 BMW X1 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118717 (Part #TK118717) fits 2016-2019 BMW X1 models. The 2019 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2016-2019 BMW X1 Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118717 (Part #TK118717) Drilling is required for installation. Basic hand tools are typically all you need.
Yes, the T-Connector (part 118717-037) is designed for BMW X1. The manual does not specify which model years or generations are compatible, so contact the manufacturer or your installer to confirm your specific vehicle year and configuration.
The T-Connector is a trailer wiring interface that connects between your vehicle's taillight wiring and a trailer's electrical system. It allows your trailer lights to operate in sync with your vehicle's brake, turn, and tail lights.
You will need: trim panel remover, 10 mm socket and ratchet or 10 mm wrench, drill with 3/32" bit, 1/4" socket, wire crimpers, wire cutters, Phillips head screwdriver, and test probe.
The kit includes: double-sided tape for mounting the black box, yellow wires and green wires on the T-Connector ends, white wire with eyelet for grounding, black 12 gauge power wire, yellow fuse holder with 15 amp fuse, yellow butt connector, cable ties, and a screw for securing the ground wire eyelet.
Yes. You must disconnect the vehicle's negative (−) battery cable before connecting the power wire to the positive battery terminal. Reconnect the negative cable only after the fuse holder and 15 amp fuse are fully installed.
Mount the black box underneath the vehicle behind the rear bumper fascia on the driver's side using the double-sided tape provided. The mounting point must be in a protected area away from road debris and objects that could be driven over. The epoxy side of the module must face the ground to prevent water buildup.
Remove both taillights by opening the rear tailgate and removing two 10 mm nuts on each side. Disconnect the vehicle wiring harness from both taillight sockets, being careful not to break the locking tabs. Route the T-Connector end with yellow wires to the driver's side taillight pocket and plug it between the mating plugs on the driver's side taillight socket and vehicle wiring harness. Route the T-Connector end with green wire to the passenger's side under the bumper and repeat the connection on the passenger side.
Yes. You must drill one 3/32" hole on the driver's side near the taillight connectors to secure the white ground wire with an eyelet and screw. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury. Do not drill into any exposed surfaces.
The T-Connector uses a 15 amp fuse. This fuse protects the power circuit from the vehicle battery. Install the fuse into the yellow fuse holder after all other connections are complete.
Locate the black 12 gauge power wire from the T-Connector box on the driver's side. Attach the black 12 gauge wire provided. Route the black wire along the exterior frame or follow existing wiring along the thresholds into the engine compartment up to the battery, avoiding areas that may pinch or break the wire. Disconnect the vehicle's negative battery cable. Remove the fuse from the yellow fuse holder if not already removed. Cut the fuse holder wire, attach the ring terminal, and secure it to the vehicle's positive (+) battery cable. Connect the other end of the fuse holder to the black 12 gauge wire using the yellow butt connector. Reconnect the negative battery cable and install the 15 amp fuse into the fuse holder.
The T-Connector has yellow wires that connect to the driver's side taillight socket, green wires that connect to the passenger's side taillight socket, white wire for grounding to the vehicle frame, and black 12 gauge wire for power from the vehicle battery. The black box itself is mounted underneath the vehicle.
Do not exceed the lower of your vehicle manufacturer's rating or: maximum stop/turn light 2 per side (4.2 amps); maximum tail lights (7.5 amps). Overloading the circuit can cause fires. Consult your vehicle's owner's manual for additional information.
All connections must be complete for the T-Connector to function properly. Test and verify the installation with a test light or by connecting a trailer once installed. For the initial test, reset the vehicle electrical system by temporarily removing the key from the ignition.
Secure the remainder of the T-Connector harness with the cable ties provided to prevent damage or rattling. Be careful to avoid any areas that would pinch, cut, or melt the wire. Also avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire.
Yes. You must remove both taillights to access and disconnect the vehicle wiring harness. Open the rear tailgate and remove two 10 mm nuts on each side (driver and passenger). Carefully pull the taillight away from the vehicle without damaging the alignment pins, then disconnect the vehicle wiring harness from the taillight sockets.
Route wires carefully to avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. Avoid areas that would pinch, cut, or melt the wire. Route the black power wire along the exterior frame or follow existing wiring along the thresholds into the engine compartment. Ensure the trailer's wire harness has adequate length to reach the mounting point.
After all T-Connector wiring is complete and secured with cable ties, reinstall the taillight assemblies and other items removed during installation. Be careful not to pinch or cut the wires when reinstalling.
Before connecting, disconnect the vehicle wiring harness from both taillight sockets. Ensure all connector surfaces are clean and free of dirt. Separate the connector carefully, being careful not to break the locking tabs.
The T-Connector (118717-037) is designed for BMW X1. Confirm your specific model year with the manufacturer or installer.
Trim panel remover, 10 mm socket/ratchet or wrench, drill with 3/32" bit, 1/4" socket, wire crimpers, wire cutters, Phillips screwdriver, and test probe.
Yes, disconnect the negative battery cable before connecting the power wire to the positive terminal. Reconnect only after the fuse holder and 15 amp fuse are installed.
Yes, one 3/32" hole must be drilled on the driver's side to secure the ground wire. Verify what is behind the surface before drilling and do not drill into exposed surfaces.
15 amp fuse. Do not exceed maximum loads: stop/turn light 2 per side (4.2 amps) or tail lights (7.5 amps).
Yes, remove both taillights by opening the tailgate and removing two 10 mm nuts on each side to access the wiring harness.
Test with a test light or trailer after all connections are complete. Reset the vehicle electrical system by temporarily removing the ignition key.
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