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Tekonsha
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2014 - 2018 Jeep Cherokee
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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: | 118605 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.55 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: | 2-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 |
|---|---|---|
| 2014 - 2018 | Jeep Cherokee | Tow Harness T: Connector Assembly Uses all existing holes. No Drilling required Install Time is 60 minutes |
The 2014-2018 Jeep Cherokee Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118605 (Part #TK118605) fits the following vehicles: 2014-2018 Jeep Cherokee. Always verify your specific year, make, and model before ordering.
Yes, the 2014-2018 Jeep Cherokee Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118605 (Part #TK118605) is designed to fit the 2014-2018 Jeep Cherokee.
The 2014-2018 Jeep Cherokee Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118605 (Part #TK118605) fits 2014-2018 Jeep Cherokee models. The 2018 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2014-2018 Jeep Cherokee Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118605 (Part #TK118605) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Yes, this T-One® T-Connector is designed for the Jeep Cherokee. The installation instructions are specific to this vehicle model. However, verify your vehicle year and configuration match the manual before purchasing, as the manual does not specify which model years are supported.
The T-One® T-Connector is a trailer wiring harness that integrates with your vehicle's taillight system. It allows you to connect a trailer's lighting to your Jeep Cherokee's electrical system by intercepting the vehicle's taillight signals and converting them for trailer use.
You will need: T30 socket and ratchet, trim panel remover, 10mm socket and ratchet (or 10mm wrench), drill with 3/32" drill bit, 1/4" socket, wire crimpers, wire cutters, Phillips head screwdriver, and a test probe. The manual does not specify whether a power drill or hand drill is required.
The kit includes: yellow wires and green wire connectors, a black converter box, white ground wire with eyelet and screw, yellow fuse holder with fuse, ring terminal, black 12 gauge wire, yellow butt connectors, cable ties, and double-sided tape for mounting the converter box. A bracket for the 4-Flat connector is not included.
Yes. You must disconnect the vehicle's negative (−) battery cable before wiring the T-Connector to the positive battery cable. This is done in step 6 of the installation. The negative cable is reconnected in step 9 after the fuse holder is attached.
Open the tailgate and remove the four T30 bolts on each side of the taillight assembly. Carefully pry the housings away from the vehicle, being careful not to break the alignment tabs. The manual does not specify torque values for reinstallation.
Fish the T-One® T-Connector end with the yellow wires up between the bumper and vehicle body into the taillight pocket. Then plug it in between the mating plugs on the driver's side taillight socket and the vehicle wiring harness.
Route the T-One® T-Connector end with the green wire to the passenger's side. Route it up through the opening on the passenger side, being careful to avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. Then plug it in between the mating plugs on the passenger's side taillight socket and vehicle wiring harness, the same way as the driver's side.
Yes. You must drill a 3/32" hole to secure the white ground wire. Locate a suitable grounding point near the connector on a flat surface. Clean dirt and rustproofing from the area first. Do not drill into the vehicle floor or bed, and do not drill into any exposed surfaces. Verify what is behind any surface before drilling to avoid damage to the vehicle or personal injury.
Drill a 3/32" hole at a suitable grounding point near the connector. Secure the white wire using the eyelet and screw provided in the kit. The grounding point should be on a flat surface away from the vehicle floor, bed, and exposed surfaces.
First, 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 provided. Do not reconnect the negative battery cable until step 9.
Install a 15 amp fuse into the fuse holder. This is done in step 9 after the negative battery cable is reconnected.
Beginning from the front of the vehicle, route the black 12 gauge wire rearward along the frame rail. Be careful to avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. Route it to the rear driver's side and up through the opening between the vehicle rear bumper and body to reach the taillight area.
Route the black 12 gauge wire up through the opening between the rear bumper and vehicle body on the driver's side. Attach it to the black wire from the T-One® T-Connector black box using the supplied yellow butt connector.
On the driver's side, locate a flat surface in an out-of-the-way place and mount the black converter box with the double-sided tape provided. The epoxy side of the module must point toward the ground to prevent water buildup.
After reinstalling the taillight housing assemblies, secure the remainder of the T-One® T-Connector harness under the bumper with the cable ties provided. Be careful to avoid any areas that would cut or pinch the wire.
Mount the 4-Flat connector in a suitable location under the vehicle. The manual does not specify the exact location or provide a bracket; you will need to source a bracket separately.
Do not exceed the lower of your towing manufacturer's rating or these limits: 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 and instruction sheet for additional information.
Test and verify the installation with a test light or trailer once installed. Use the test probe tool included in your required tools to verify proper electrical connections.
Wear safety glasses during installation. Read and follow all vehicle warnings and installation instructions before beginning. Read and follow all warnings and cautions printed on the tow vehicle's battery. Before drilling, verify what is behind any surface to avoid damage to the vehicle or personal injury. Route wires carefully to avoid hot pipes, heat shields, the fuel tank, or pinching.
No, the 4-Flat connector bracket is not included. You will need to source a suitable bracket separately.
Test and verify the installation with a test light or trailer. Use the test probe to check electrical connections at the taillight connectors and converter box. Verify that: 1) the 15 amp fuse is installed and not blown, 2) the negative battery cable is fully reconnected, 3) the yellow butt connectors are fully seated, 4) the black 12 gauge wire is properly connected to both the positive battery cable and the converter box black wire, 5) the white ground wire is securely fastened with the eyelet and screw, and 6) all taillight connectors are fully plugged in between the mating plugs.
The converter box must be mounted with the epoxy side pointing toward the ground to prevent water buildup. If water is accumulating, remount the box so that the epoxy side faces downward. Ensure the double-sided tape is securing the box firmly to a flat surface.
The manual warns to be careful not to break the alignment tabs when prying the taillight housings away from the vehicle. If tabs are broken, the housings may not seat properly when reinstalled. Consult the vehicle's service manual or a Jeep dealer for replacement taillight assemblies or repair options.

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May 22, 2023