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2005 - 2006 Jeep Grand 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: | 118394 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 0.86 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: | NO |
| 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 |
|---|---|---|
| 2005 - 2006 | Jeep Grand Cherokee | Tow Harness T: Connector Assembly Drilling Required Install Time is 20 minutes |
The 2005-2006 Jeep Grand Cherokee Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118394 (Part #TK118394) fits the following vehicles: 2005-2006 Jeep Grand Cherokee. Always verify your specific year, make, and model before ordering.
The 2005-2006 Jeep Grand Cherokee Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118394 (Part #TK118394) fits 2005-2006 Jeep Grand Cherokee models. The 2006 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 2005-2006 Jeep Grand Cherokee Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118394 (Part #TK118394) is designed to fit the 2005-2006 Jeep Grand Cherokee.
The 2005-2006 Jeep Grand Cherokee Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118394 (Part #TK118394) Drilling is required for installation. Basic hand tools are typically all you need.
The T-Connector is a taillight wiring integration system that allows a trailer to connect to a vehicle's existing taillight circuits. It includes a converter (black box) that connects to the vehicle's taillight sockets and provides a 4-flat connector for trailer wiring. The system uses color-coded wires (yellow and green) to route signals from the vehicle's taillights to the trailer.
The manual does not specify which vehicle makes, models, or years are compatible with this T-Connector. You should verify compatibility with the manufacturer or retailer before purchasing, as the installation procedure assumes access to rear taillights with specific connector types and a tailgate that can be opened.
You need a T-20 Torx bit and driver. The manual also assumes you have a drill capable of making a 3/32" hole. All other hardware—cable ties, eyelet, and screw for the ground connection—are provided with the product.
The T-Connector kit includes the T-Connector harness with color-coded wires (yellow and green), a 4-flat connector, a converter (black box), cable ties, an eyelet, and a screw for securing the ground wire. All fasteners needed for installation are provided.
The manual does not specify whether battery disconnection is required. Contact the manufacturer or a qualified installer to confirm whether this step is necessary for your vehicle.
No. Step 1 requires you to open the rear tailgate and remove the T-20 Torx screws holding the taillights in place, then carefully pry the taillight housings rearward away from the vehicle. The taillights must be removed to access the connectors and route the wiring.
1. Open the rear tailgate and remove the T-20 Torx screws from the taillights. Carefully pry the taillight housings rearward, being careful not to break the alignment tabs. 2. Disconnect the wire harness from both taillight sockets; ensure all connector surfaces are clean and free of dirt. 3. Locate a grounding point on the driver's side near the connectors, drill a 3/32" hole, and secure the white wire with the eyelet using the provided screw. 4. Plug the T-Connector harness with the yellow wire between the vehicle's mating connectors on the driver's side. 5. Route the green wire and 4-flat connector down the opening behind the driver's side taillight, then to the center of the vehicle, then underneath and up through the passenger's side taillight opening. 6. Repeat step 4 on the passenger's side using the T-Connector harness end with the green wire. 7. Secure wires with cable ties, secure the converter in the driver's side taillight pocket below the taillight and between the vehicle and bumper, and reinstall both taillights.
Locate the black housings on the vehicle's taillight sockets that match the housings on the T-Connector. Beginning on the driver's side, plug the T-Connector harness containing the yellow wire in between the vehicle's mating connectors. Repeat this process on the passenger's side using the T-Connector harness end with the green wire. Ensure all connector surfaces are clean and free of dirt before connecting.
Yes. You must drill a 3/32" hole on the driver's side near the connectors to secure the white ground wire with an eyelet using the provided 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.
Drill a 3/32" hole on the driver's side near the connectors to secure the white ground wire with the eyelet and provided screw.
The T-Connector uses color-coded wires: yellow wire on the driver's side harness, green wire on the passenger's side harness, and white wire for the ground connection. The 4-flat connector carries the trailer signal wiring. The manual does not specify which wire corresponds to which taillight function (stop, turn, tail).
Route the harness containing the green wire and the 4-flat connector down the opening behind the taillight on the driver's side. Route the 4-flat harness to the center of the vehicle. Route the harness containing the green wire underneath the vehicle and up through the opening behind the passenger's side taillight. Route all wires carefully to avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. Secure all wires with the cable ties provided.
Secure the converter through the driver's side taillight pocket, in the area below the taillight and between the vehicle and the bumper.
Do not exceed the lower of your towing manufacturer's rating or: maximum stop/turn light 2.1 amps per side (1 per side), or maximum tail lights 5.0 amps. Overloading the circuit can cause fires. Consult your vehicle's owner's manual and instruction sheet for additional information.
Route the wires carefully to avoid hot pipes, heat shields, the fuel tank, or any other points that may pinch or break the wire. Before drilling the ground hole, verify what is behind the surface to avoid damage to the vehicle or personal injury. Do not drill into any exposed surfaces.
After installation is complete, test and verify the installation with a test light or by connecting a trailer. All connections must be complete for the T-Connector to function properly. Ensure all wires are secured with cable ties and the converter is properly mounted before testing.
Before reinstalling the taillights, ensure all T-Connector harness connections are complete and properly seated in the vehicle's mating connectors on both driver's and passenger's sides. Verify that all wires are secured with cable ties, the converter is properly mounted in the driver's side taillight pocket, and all connector surfaces are clean. Test the installation with a test light or trailer to confirm proper function.
The manual does not specify compatible vehicle makes, models, or years. Verify compatibility with the manufacturer or retailer before purchasing.
You need a T-20 Torx bit and driver, and a drill capable of making a 3/32" hole. All fasteners, cable ties, eyelet, and screw are included.
Yes. You must remove the taillights by opening the tailgate, removing the T-20 Torx screws, and carefully prying the housings rearward to access the connectors.
Yes. You must drill a 3/32" hole on the driver's side to secure the white ground wire. Verify what is behind the surface before drilling to avoid damage.
Do not exceed 2.1 amps per side for stop/turn lights (1 per side) or 5.0 amps for tail lights. Do not exceed your towing manufacturer's rating. Overloading can cause fires.
Test with a test light or by connecting a trailer once all connections are complete and wires are secured. Verify all harness connections are seated properly on both sides.
Verify that all connections are complete. The manual states that all connections must be complete for the T-Connector to function properly. Check that: (1) the T-Connector harness with the yellow wire is fully plugged into the driver's side vehicle connectors, (2) the T-Connector harness with the green wire is fully plugged into the passenger's side vehicle connectors, (3) the white ground wire is securely fastened with the eyelet and screw, (4) all wires are routed correctly and not pinched or damaged, and (5) the converter is properly mounted. Test with a test light or trailer to verify function.
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