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2019 - 2024 Volkswagen Tiguan
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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: | 118880 |
| WARRANTY: | LIMITED 1 YEAR WARRANTY |
| WEIGHT: | 1.5 LBS |
| UNIVERSAL OR SPECIFIC FIT: | SPECIFIC |
| CIRCUIT PROTECTED: | YES |
| HARNESS TYPE: | MALE FEMALE |
| TERMINAL QUANTITY: | 4 |
| WIRE COLORS: | BROWN, GREEN, WHITE, YELLOW |
| 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 |
|---|---|---|
| 2019 - 2024 | Volkswagen Tiguan | Tow Harness T: Connector Assembly Drilling Required Install Time is 60 minutes |
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Yes, the 2019-2023 Volkswagen Tiguan Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118880 (Part #TK118880) is designed to fit the 2019-2024 Volkswagen Tiguan.
The 2019-2023 Volkswagen Tiguan Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118880 (Part #TK118880) fits 2019-2024 Volkswagen Tiguan models. The 2024 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2019-2023 Volkswagen Tiguan Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118880 (Part #TK118880) fits the following vehicles: 2019-2024 Volkswagen Tiguan. Always verify your specific year, make, and model before ordering.
The 2019-2023 Volkswagen Tiguan Tekonsha Plug & Play T-Connector Adapter Trailer Wiring 118880 (Part #TK118880) Drilling is required for installation. Basic hand tools are typically all you need.
The T-One® Connector (part number 118880-037) is a vehicle wiring interface that connects to your vehicle's taillight wiring harness on both the driver and passenger sides. It provides a connection point for trailer lighting and is installed inside the rear cargo area of the vehicle. The connector includes a black box module, wiring harness with yellow and green wires, and a 4-flat connector that stores in the rear cargo area when not in use.
The manual shows the Volkswagen Tiguan as an example application, but does not provide a complete list of compatible vehicles. Contact the manufacturer or your retailer to confirm compatibility with your specific vehicle model and year before purchasing.
You will need: 10mm socket and ratchet or 10mm wrench, drill with 3/32" drill bit, wire crimpers, wire cutter, and Philips head screwdriver. The manual also mentions a panel removal tool may be helpful for accessing the rear cargo area.
The kit includes: the T-One® Connector black box module, yellow and green wiring harness, double-sided tape for mounting the black box, white grounding wire with eyelet and screw, black 12 gauge power wire, yellow fuse holder with 15 amp fuse, yellow butt connector, cable ties, and a 4-flat connector for storage in the rear cargo area when not in use.
Yes. You must disconnect the vehicle's negative (-) battery cable before making the final power connections. The negative cable is disconnected in step 9 before attaching the fuse holder to the positive battery terminal, and is reconnected in step 10 after the 15 amp fuse is installed.
Yes. You must open the rear hatch and partially remove the plastic threshold cover, side panels, and cargo trays to locate the vehicle's taillight wiring harness inside the rear cargo area. These components must be reinstalled carefully at the end of installation without pinching or cutting the wires.
On the driver's side, locate the vehicle's taillight wiring harness connector. Separate the connector carefully without breaking the locking tabs. Ensure all connector surfaces are clean and free of dirt. Insert the T-One® Connector end with the yellow wire between the vehicle wiring connectors and lock into place, ensuring the locking tabs are fully engaged. Repeat the same process on the passenger's side with the green wire connector, routing it down the threshold.
Mount the black box on the driver's side of the vehicle using the double-sided tape provided. The tape should be applied to a clean, flat surface near the taillight wiring connectors.
You may use an existing ground stud if one is available near the connector. If not, you must drill a 3/32" hole for the white grounding wire. Do not drill into the vehicle floor or bed. Before drilling, verify what is behind the surface to avoid damage to the vehicle or personal injury. Clean dirt and rustproofing from the area before securing the white wire with the eyelet and screw provided.
Use a 3/32" drill bit to create the grounding hole for the white wire eyelet.
Locate the black 12 gauge power wire from the T-One® Connector black 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. Avoid areas that may pinch or break the wire. If routing through a grommet and along the exterior, carefully avoid hot pipes, heat shields, the fuel tank, and any other points that may pinch or break the wire.
The T-One® Connector uses a 15 amp fuse. The fuse is installed in the yellow fuse holder provided with the kit and is placed in step 10 after the negative battery cable is reconnected.
After disconnecting the negative battery cable, remove the fuse from the yellow fuse holder if present. Cut the fuse holder wire and attach the ring terminal 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. Reconnect the negative battery cable and install the 15 amp fuse into the fuse holder.
The T-One® Connector uses three main wires: yellow wire (driver's side taillight connection), green wire (passenger's side taillight connection), and white wire (grounding). The black 12 gauge power wire connects from the black box to the vehicle's positive battery terminal via the fuse holder.
Always wear safety glasses during installation. Read and follow all warnings and instructions included with the product before beginning. Do not drill into vehicle floor or bed. Verify what is behind any surface before drilling. Avoid drilling into exposed surfaces. When routing the power wire, avoid hot pipes, heat shields, fuel tank, and pinch points. Do not exceed the product's amperage rating or the towing manufacturer's rating. Ensure all connections are complete before testing. Read and follow all warnings printed on the vehicle's battery.
Yes. The manual states that for the initial test, the vehicle must be running to function test the installation of the T-One® Connector. You can use a test light to verify the installation, or test with a trailer once installed.
Do not exceed the lower of two ratings: the towing manufacturer's rating (including the rating in your vehicle's owner's manual) or the specific amperage rating stated on the T-One® Connector product itself. Overloading circuits can cause fires.
After installation, verify that all connections are complete and secure. Test the installation with a test light or by connecting a trailer. The vehicle must be running during the initial function test. Ensure all wires are secured with cable ties to prevent damage or rattling, and verify that no wires are pinched or cut by the reinstalled interior panels and trim.
Secure the remainder of the T-One® 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. Reinstall all plastic trim panels, threshold, storage covers, and floor covering carefully without pinching or cutting the wires.
Store the 4-flat connector in the rear cargo area of the vehicle when not in use.
The manual shows the Volkswagen Tiguan as an example but does not provide a complete compatibility list. Contact the manufacturer or retailer to confirm fitment for your specific vehicle model and year.
Yes, you must disconnect the negative battery cable before connecting the fuse holder to the positive terminal in step 9, and reconnect it in step 10 after the 15 amp fuse is installed.
Drilling is required only if no existing ground stud is available near the connector. If needed, drill a 3/32" hole for the white grounding wire. Do not drill into the vehicle floor or bed, and verify what is behind the surface before drilling.
The T-One® Connector uses a 15 amp fuse installed in the yellow fuse holder provided.
Do not exceed the lower of the towing manufacturer's rating (in your vehicle's owner's manual) or the specific amperage rating stated on the product. Overloading can cause fires.
The vehicle must be running for the initial function test. Use a test light to verify the installation, or connect a trailer and test the lights.
Verify that all connections are complete. The manual states that all connections must be complete for the T-One® Connector to function properly. Check that: 1) the yellow and green wires are fully inserted and locked into the taillight connectors on both sides, 2) the white grounding wire is securely attached, 3) the black power wire is connected to the positive battery terminal through the fuse holder, 4) the 15 amp fuse is installed in the fuse holder, and 5) the negative battery cable is reconnected. Test with the vehicle running using a test light or trailer.
Total for 3 items:
$75.95
George
Ordered online. Shipment arrived on time and with all the correct parts. Great customer service and friendly staff. Also, pricing was great!
May 22, 2023
