Trailer Hitch Wiring Harness Kit For 18‑24 VW Volkswagen Atlas Plug & Play
Model: 118754Wiring Harness (Plug & Play)
Installation Instructions
Fits The Following Vehicles:
2018 - 2020 Volkswagen, Atlas, All Styles
| Part Number | 118754 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions |  |
Questions or Comments? Call 702-374-8999
Thank you for choosing Tekonsha, the most powerful name in trailer light wiring and brake control system. Our trailer wiring harness is vehicle specific, requires no splicing or cutting of the wires. Simply plug & play and your vehicle will be able to control trailers brake, turn and running lights. Trailer wiring kit comes with a 1 year warranty and everything necessary to install the trailer plug wiring. Tekonsha manufactures a wider range of different products for hooking up trailer lights to your Car Truck or SUV. T-One connectors work great with boat trailer wiring and utility trailer wiring. Typically those trailers will use the standard 4 flat plug which is what our T One connectors offer. If you have an RV Fifth Wheel or any other large type of trailer you will us a 7 pin trailer plug to control your electric trailer brakes. Tekonsha offers 7 pin trailer connector as well. Simply do a search above to see if there is a 7 wire trailer wiring available for hooking up your 7 way. If there is not you can use part number 85343 trailer wiring adapter to convert any 4-Flat into a 7-Way. In addition you will use part number 20506 which will include the rest of wiring needed for electric brake controls. You can also call us or email us any time and we will be able to provide information you need.
Partial list of fitment years: 18 19 20 21 22 23 24 2018 2019 2020 2021 2022 2023 2024
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Product Details
- Brand: Tekonsha
- Model: 118754
- UPC: 016118103694
- Includes: T-One T-Connector Custom Harness
Compatibility Chart
Description
Wiring Harness (Plug & Play)
Installation Instructions
Fits The Following Vehicles:
2018 - 2020 Volkswagen, Atlas, All Styles
| Part Number | 118754 |
| Brand | Tekonsha |
| Warranty | 1 Year |
| Installation Instructions | |
Questions or Comments? Call 702-374-8999
Thank you for choosing Tekonsha, the most powerful name in trailer light wiring and brake control system. Our trailer wiring harness is vehicle specific, requires no splicing or cutting of the wires. Simply plug & play and your vehicle will be able to control trailers brake, turn and running lights. Trailer wiring kit comes with a 1 year warranty and everything necessary to install the trailer plug wiring. Tekonsha manufactures a wider range of different products for hooking up trailer lights to your Car Truck or SUV. T-One connectors work great with boat trailer wiring and utility trailer wiring. Typically those trailers will use the standard 4 flat plug which is what our T One connectors offer. If you have an RV Fifth Wheel or any other large type of trailer you will us a 7 pin trailer plug to control your electric trailer brakes. Tekonsha offers 7 pin trailer connector as well. Simply do a search above to see if there is a 7 wire trailer wiring available for hooking up your 7 way. If there is not you can use part number 85343 trailer wiring adapter to convert any 4-Flat into a 7-Way. In addition you will use part number 20506 which will include the rest of wiring needed for electric brake controls. You can also call us or email us any time and we will be able to provide information you need.
Partial list of fitment years: 18 19 20 21 22 23 24 2018 2019 2020 2021 2022 2023 2024
Get Expert Help
Trailer Hitch Wiring Harness Kit For 18-24 VW Volkswagen Atlas Plug & Play Install Notes
Installation Instructions for T-One® T-Connector for Volkswagen Atlas
Part Numbers:
- 118754
Tools Required:
- Trim Panel Remover
- 10mm Socket & Ratchet or Wrench
- Torx T30 Driver
- Drill (3/32” Drill Bit)
- Wire Crimpers
- Wire Cutters
- Phillips Head Screwdriver
- Test Probe
Step-by-Step Instructions:
-
Access the Vehicle Wiring:
- Open the hatch and partially remove the plastic threshold cover, side panels, and cargo trays to expose the vehicle’s wiring inside the rear cargo area.
-
Locate the Taillight Wiring Harness:
- On both the driver and passenger sides of the vehicle, locate the taillight wiring harness with a connection point matching the ends of the T-One® Connector.
- Separate the connectors carefully, ensuring not to break the locking tabs. Ensure all connector surfaces are clean and free of dirt.
-
Connect the Driver-Side T-Connector:
- Insert the T-One® Connector end with the yellow wire between the vehicle wiring connectors.
- Lock the connectors in place, ensuring they are fully inserted and the locking tabs are secure.
-
Mount the Black Box:
- Mount the T-One® Connector’s black box on the driver’s side using the provided double-sided tape.
- Secure the remainder of the T-One® Connector harness with the provided cable ties to prevent damage or rattling, avoiding areas that may cut or pinch the wire.
-
Ground the White Wire:
- Locate a suitable grounding point near the connector, such as an existing ground stud, or drill a 3/32” hole.
- Secure the white wire using the provided eyelet and screw. Clean dirt and rustproofing from the area before securing.
Caution: Verify what is behind the surface before drilling to prevent damage or injury.
-
Route the Passenger-Side T-Connector:
- Route the connector containing the green wire through the threshold to the passenger side of the vehicle.
- Insert the T-One® Connector end with the green wire between the passenger-side taillight wiring connectors, following the same procedure as for the driver’s side.
-
Route the Power Wire:
- Starting from the front of the vehicle, route the black 12-gauge wire rearward along the frame rail, avoiding hot pipes, heat shields, the fuel tank, or any other points that may pinch or damage the wire.
Warning: If routing the wire through a grommet along the exterior, ensure no damage or exposure to hazardous areas.
-
Connect to the Vehicle Battery:
- Disconnect the Negative (-) battery cable.
- Remove the fuse from the yellow fuse holder. Attach the ring terminal to the Positive (+) battery cable and secure it.
- Connect the other end of the fuse holder to the black 12-gauge wire using the provided yellow butt connector.
-
Secure the Harness:
- Use the provided cable ties to secure the remainder of the T-One® Connector harness, avoiding areas that could pinch, cut, or melt the wire.
-
Reconnect the Battery and Test:
- Reconnect the Negative (-) battery cable.
- Insert the 15-amp fuse into the fuse holder.
- Test the installation using a test light or trailer. Reset the vehicle’s electrical system by temporarily removing the key from the ignition.
-
Reassemble the Vehicle:
- Reinstall all trim panels, the threshold, storage covers, floor coverings, and other components removed during installation, ensuring no wires are pinched or damaged.
-
Store the 4-Flat Connector:
- Store the 4-flat connector in the rear cargo area when not in use.
Safety Notes:
- Overloading circuits can cause fires. Do not exceed stated product ratings or vehicle manufacturer specifications.
- Always wear safety glasses and follow all safety precautions during installation.
Manufacturer Notes:
- Refer to the vehicle owner’s manual and the instruction sheet for additional details.
- Store these instructions for future reference.
Installation Instructions for T-One® T-Connector for Volkswagen Atlas
Part Numbers:
- 118754
Tools Required:
- Trim Panel Remover
- 10mm Socket & Ratchet or Wrench
- Torx T30 Driver
- Drill (3/32” Drill Bit)
- Wire Crimpers
- Wire Cutters
- Phillips Head Screwdriver
- Test Probe
Step-by-Step Instructions:
-
Access the Vehicle Wiring:
- Open the hatch and partially remove the plastic threshold cover, side panels, and cargo trays to expose the vehicle’s wiring inside the rear cargo area.
-
Locate the Taillight Wiring Harness:
- On both the driver and passenger sides of the vehicle, locate the taillight wiring harness with a connection point matching the ends of the T-One® Connector.
- Separate the connectors carefully, ensuring not to break the locking tabs. Ensure all connector surfaces are clean and free of dirt.
-
Connect the Driver-Side T-Connector:
- Insert the T-One® Connector end with the yellow wire between the vehicle wiring connectors.
- Lock the connectors in place, ensuring they are fully inserted and the locking tabs are secure.
-
Mount the Black Box:
- Mount the T-One® Connector’s black box on the driver’s side using the provided double-sided tape.
- Secure the remainder of the T-One® Connector harness with the provided cable ties to prevent damage or rattling, avoiding areas that may cut or pinch the wire.
-
Ground the White Wire:
- Locate a suitable grounding point near the connector, such as an existing ground stud, or drill a 3/32” hole.
- Secure the white wire using the provided eyelet and screw. Clean dirt and rustproofing from the area before securing.
Caution: Verify what is behind the surface before drilling to prevent damage or injury.
-
Route the Passenger-Side T-Connector:
- Route the connector containing the green wire through the threshold to the passenger side of the vehicle.
- Insert the T-One® Connector end with the green wire between the passenger-side taillight wiring connectors, following the same procedure as for the driver’s side.
-
Route the Power Wire:
- Starting from the front of the vehicle, route the black 12-gauge wire rearward along the frame rail, avoiding hot pipes, heat shields, the fuel tank, or any other points that may pinch or damage the wire.
Warning: If routing the wire through a grommet along the exterior, ensure no damage or exposure to hazardous areas.
-
Connect to the Vehicle Battery:
- Disconnect the Negative (-) battery cable.
- Remove the fuse from the yellow fuse holder. Attach the ring terminal to the Positive (+) battery cable and secure it.
- Connect the other end of the fuse holder to the black 12-gauge wire using the provided yellow butt connector.
-
Secure the Harness:
- Use the provided cable ties to secure the remainder of the T-One® Connector harness, avoiding areas that could pinch, cut, or melt the wire.
-
Reconnect the Battery and Test:
- Reconnect the Negative (-) battery cable.
- Insert the 15-amp fuse into the fuse holder.
- Test the installation using a test light or trailer. Reset the vehicle’s electrical system by temporarily removing the key from the ignition.
-
Reassemble the Vehicle:
- Reinstall all trim panels, the threshold, storage covers, floor coverings, and other components removed during installation, ensuring no wires are pinched or damaged.
-
Store the 4-Flat Connector:
- Store the 4-flat connector in the rear cargo area when not in use.
Safety Notes:
- Overloading circuits can cause fires. Do not exceed stated product ratings or vehicle manufacturer specifications.
- Always wear safety glasses and follow all safety precautions during installation.
Manufacturer Notes:
- For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.
- Refer to the vehicle owner’s manual for additional details.
- Store these instructions for future reference.
Technical Support:
For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.
Warranty:
For complete warranty instructions, please download the full installation PDF.
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