Installation Instructions for T-One® T-Connector for Lincoln Nautilus

Part Numbers:

• 118803

Tools Required:

• Trim Panel Remover
• 10mm Socket & Ratchet or Wrench
• Drill (3/32” Drill Bit)
• Wire Crimpers
• Wire Cutters
• Phillips Head Screwdriver
• Test Probe
• Torx 25 Driver

Step-by-Step Instructions:

1. Remove the Taillight Assemblies:

   • Open the tailgate and use a trim panel remover to remove the round covers that expose the Torx 25 screws securing the taillights.
   • Remove the screws and carefully pull the taillights away from the vehicle, ensuring not to damage the alignment pins.

2. Disconnect the Wiring Harness:

   • Disconnect the vehicle’s wiring harness from both taillight sockets.
   • On the driver’s side, fish the T-One® T-Connector end with the yellow wires up between the bumper and vehicle body into the taillight pocket.

   Note: Partial removal of the fascia may assist in routing wires and connectors. Pull back the fascia to expose a larger area of the opening.

3. Connect the Driver-Side T-Connector:

   • Plug the T-One® Connector end with the yellow wire between the mating plugs on the driver’s side taillight socket and vehicle wiring harness.

4. Route the Passenger-Side T-Connector:

   • Route the green wire of the T-One® Connector under the bumper to the passenger side.
   • Insert the green wire up through the passenger-side opening and connect it between the taillight socket and the vehicle wiring harness.

   Note: For alternate routing, pull back the fascia area below the tailgate weatherstrip and place the wire behind the fascia. Removal of several fasteners may be required.

5. Ground the White Wire:

   • Locate a suitable grounding point near the connector.
   • Clean dirt and rustproofing from the area.
   • Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.

   Caution: Verify the area behind any surface before drilling to avoid damage or injury.

6. Connect the Power Wire:

   • Disconnect the vehicle’s Negative (-) battery cable.
   • Remove the fuse from the yellow fuse holder and attach the ring terminal to the Positive (+) battery cable.
   • Connect the other end of the fuse holder to the black 12-gauge wire using the provided yellow butt connector.

   Warning: Read and follow all warnings and cautions printed on the tow vehicle’s battery.

7. Route the Power Wire:

   • Starting at the front of the vehicle, route the black 12-gauge wire along the frame rail to the rear driver’s side.
   • Locate the opening between the rear bumper and body to route the wire into the taillight area.
   • Connect the black wire to the black wire from the T-One® Connector black box using the supplied yellow butt connector.

8. Reconnect the Battery and Test:

   • Reconnect the Negative (-) battery cable and insert the 15-amp fuse into the fuse holder.
   • Test the installation with a test light or trailer.

9. Mount the Black Box:

   • Locate a flat, out-of-the-way surface on the driver’s side and secure the T-One® Connector’s black converter box with the provided double-sided tape.
   • Ensure the epoxy side faces downward to prevent water accumulation.

10. Reinstall the Taillight Assemblies:

    • Reinstall the taillights, positioning the vehicle wiring harness between the housing and the vehicle body.
    • Secure the remaining T-One® Connector harness under the bumper with the provided cable ties, avoiding areas that could pinch or cut the wire.

11. Store the 4-Flat Connector:

    • Mount the 4-flat connector in a suitable location under the vehicle (bracket not included).

Safety Notes:

• Overloading circuits can cause fires. Do not exceed stated product ratings or vehicle manufacturer specifications.
• Always wear safety glasses and follow 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.

Troubleshooting:

• Ensure all connectors are fully inserted and secure.
• Verify the ground connection is clean and tight.
• Check the fuse for any breaks and replace if necessary.

Installation Instructions for T-One® T-Connector for Various Vehicles

Part Numbers:

• 118803

Tools Required:

• Trim Panel Remover
• 10mm Socket & Ratchet or Wrench
• Drill (3/32” Drill Bit)
• Wire Crimpers
• Wire Cutters
• Phillips Head Screwdriver
• Test Probe
• Torx 25 Driver

Step-by-Step Instructions:

1. Remove the Taillight Assemblies:

   • Open the tailgate and use a trim panel remover to remove the round covers that expose the Torx 25 screws securing the taillights.
   • Remove the screws and carefully pull the taillights away from the vehicle, ensuring not to damage the alignment pins.

2. Disconnect the Wiring Harness:

   • Disconnect the vehicle’s wiring harness from both taillight sockets.
   • On the driver’s side, fish the T-One® T-Connector end with the yellow wires up between the bumper and vehicle body into the taillight pocket.

   Note: Partial removal of the fascia may assist in routing wires and connectors. Pull back the fascia to expose a larger area of the opening.

3. Connect the Driver-Side T-Connector:

   • Plug the T-One® Connector end with the yellow wire between the mating plugs on the driver’s side taillight socket and vehicle wiring harness.

4. Route the Passenger-Side T-Connector:

   • Route the green wire of the T-One® Connector under the bumper to the passenger side.
   • Insert the green wire up through the passenger-side opening and connect it between the taillight socket and the vehicle wiring harness.

   Note: For alternate routing, pull back the fascia area below the tailgate weatherstrip and place the wire behind the fascia. Removal of several fasteners may be required.

5. Ground the White Wire:

   • Locate a suitable grounding point near the connector.
   • Clean dirt and rustproofing from the area.
   • Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.

   Caution: Verify the area behind any surface before drilling to avoid damage or injury.

6. Connect the Power Wire:

   • Disconnect the vehicle’s Negative (-) battery cable.
   • Remove the fuse from the yellow fuse holder and attach the ring terminal to the Positive (+) battery cable.
   • Connect the other end of the fuse holder to the black 12-gauge wire using the provided yellow butt connector.

   Warning: Read and follow all warnings and cautions printed on the tow vehicle’s battery.

7. Route the Power Wire:

   • Starting at the front of the vehicle, route the black 12-gauge wire along the frame rail to the rear driver’s side.
   • Locate the opening between the rear bumper and body to route the wire into the taillight area.
   • Connect the black wire to the black wire from the T-One® Connector black box using the supplied yellow butt connector.

8. Reconnect the Battery and Test:

   • Reconnect the Negative (-) battery cable and insert the 15-amp fuse into the fuse holder.
   • Test the installation with a test light or trailer.

9. Mount the Black Box:

   • Locate a flat, out-of-the-way surface on the driver’s side and secure the T-One® Connector’s black converter box with the provided double-sided tape.
   • Ensure the epoxy side faces downward to prevent water accumulation.

10. Reinstall the Taillight Assemblies:

    • Reinstall the taillights, positioning the vehicle wiring harness between the housing and the vehicle body.
    • Secure the remaining T-One® Connector harness under the bumper with the provided cable ties, avoiding areas that could pinch or cut the wire.

11. Store the 4-Flat Connector:

    • Mount the 4-flat connector in a suitable location under the vehicle (bracket not included).

Safety Notes:

• Overloading circuits can cause fires. Do not exceed stated product ratings or vehicle manufacturer specifications.
• Always wear safety glasses and follow safety precautions during installation.

Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams and detailed information from the manufacturer, please download the full installation PDF.

Manufacturer Notes:

• Refer to the vehicle owner’s manual and the instruction sheet for additional details.
• Store these instructions for future reference.

Warranty Information:

• For complete warranty instructions, please download the full installation PDF.

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.

Troubleshooting:

• Ensure all connectors are fully inserted and secure.
• Verify the ground connection is clean and tight.
• Check the fuse for any breaks and replace if necessary.