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Tekonsha
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2000 - 2002 Toyota Echo
Confirmed to Fit
2003 - 2008 Toyota Matrix
Confirmed to Fit

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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: | 118386 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1 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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The 2003-2008 Toyota Matrix, 2000-2002 Toyota Echo Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118386 (Part #TK118386) fits the following vehicles: 2000-2002 Toyota Echo; 2003-2008 Toyota Matrix. Always verify your specific year, make, and model before ordering.
The 2003-2008 Toyota Matrix, 2000-2002 Toyota Echo Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118386 (Part #TK118386) fits 2000-2002 Toyota Echo models. The 2008 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 2003-2008 Toyota Matrix, 2000-2002 Toyota Echo Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118386 (Part #TK118386) is designed to fit the 2000-2002 Toyota Echo.
The 2003-2008 Toyota Matrix, 2000-2002 Toyota Echo Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118386 (Part #TK118386) Drilling is required for installation. Basic hand tools are typically all you need.
The T-Connector is designed for Toyota Matrix, Pontiac Vibe, and Toyota Echo only. If your vehicle is not one of these models, this product will not fit. Verify your vehicle model before purchasing.
The T-Connector is a trailer wiring connector that taps into your vehicle's taillight wiring harness to provide power for trailer lights. It includes a black box module and a 4-flat connector for storing in your trunk or rear cargo area when not in use.
You will need a Philips head screwdriver and a drill with a 3/32" drill bit. These are the only tools required for installation.
The T-Connector includes double-sided tape for mounting the black box, cable ties for securing the harness, an eyelet and screw for grounding the white wire, and a 4-flat connector for storage when not in use.
The manual does not specify whether the battery must be disconnected. Consult your vehicle's owner's manual or contact the manufacturer for guidance on this safety requirement.
Open the rear tailgate and remove the cargo nets and cargo floor hatch to access the spare tire area. Unscrew the nut holding the spare tire cover and remove it. Remove the access panel doors on both sides to access the vehicle's wiring connectors.
Open the trunk and remove the threshold panel. Partially remove the corner felt trunk liner on both sides to expose the vehicle's taillight wiring harness.
On both the driver and passenger sides of the vehicle, locate the taillight wiring harness. The harness will have a connection point on each side that matches the ends of the T-Connector. Ensure all connector surfaces are clean and free of dirt before proceeding.
The T-Connector has a yellow wire end and a green wire end. The yellow wire end is routed through the access hole on the driver's side (Matrix/Vibe only) and inserted into the driver's side taillight connector. The green wire end is routed to the passenger's side and inserted into the passenger's side taillight connector.
Separate the vehicle's taillight connector carefully without breaking the locking tabs. Insert the T-Connector end (yellow wire for driver's side, green wire for passenger's side) between the vehicle wiring connectors and lock into place. Ensure connectors are fully inserted with locking tabs in place.
Yes. You must drill a 3/32" hole to secure the white grounding wire using the eyelet and screw provided. 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 for the white grounding wire. This hole is used to secure the eyelet and screw provided with the T-Connector.
Locate a suitable grounding point on the vehicle and clean any dirt from the area. Drill a 3/32" hole and secure the white wire using the eyelet and screw provided. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury.
Mount the T-Connector black box using the double-sided tape provided. Secure the remainder of the T-Connector harness with the cable ties provided to prevent damage or rattling. Be careful to avoid areas that would cut or pinch the wire.
Route the T-Connector end with the yellow wire up through the access hole on the driver's side (Matrix/Vibe only) to the access panel. Route the T-Connector end with the green wire to the passenger's side. Secure the harness with cable ties to prevent damage or rattling, avoiding areas that would cut or pinch the wire.
Replace both access panels, the spare tire cover, cargo floor hatch, and cargo nets that were removed during installation.
Reposition the trunk liner and reattach the threshold panel.
Do not exceed the lower of the towing manufacturer rating or: maximum stop/turn light 1 per side (2.1 amps), maximum tail lights (5 amps). Overloading the circuit can cause fires. Consult your vehicle's owner's manual and the T-Connector instruction sheet 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 trailer once installed.
Store the 4-flat connector in the trunk or rear cargo area when not in use.
Yes, the T-Connector (18386-037) is designed for Toyota Matrix, Pontiac Vibe, and Toyota Echo only. Verify your vehicle model before purchasing.
Do not exceed 2.1 amps per side for stop/turn lights or 5 amps for tail lights. Do not exceed the lower of the towing manufacturer rating or these limits. Overloading can cause fires.
The T-Connector has a yellow wire end for the driver's side and a green wire end for the passenger's side. The white wire is for grounding.
2 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2000 - 2002 | Toyota Echo | Tow Harness T: Connector Assembly Drilling Required Install Time is 20 minutes |
| 2003 - 2008 | Toyota Matrix | Tow Harness T: Connector Assembly Drilling Required Install Time is 20 minutes |
Ann
The staff was able to quickly assist me with locating the correct product I needed. Shipping was really fast. Item arrived in 2 days. Will be using TowUniverse again!!
May 22, 2023