Installation Instructions for T-One® T-Connector for Lexus UX250

Part Numbers:

• 118858

Tools Required:

• Trim Panel Remover
• 10mm Socket & Ratchet or Wrench
• Drill (3/32” Drill Bit)
• 1/4” Socket
• Wire Crimpers
• Wire Cutters
• Phillips Head Screwdriver
• Test Probe

Step-by-Step Instructions:

1. Open the Rear Hatch:

   • Temporarily remove the floor covering and set it aside.
   • Remove the clips holding the threshold in place and carefully pry it up.
   • Open the side door and fold the rear seats forward to access the vehicle's wiring.

2. Locate the Taillight Wiring Harness:

   • On both the driver and passenger sides, locate the vehicle’s taillight wiring harness near the floor and rear corners of the vehicle.
   • Separate the connectors carefully, ensuring not to break the locking tabs.
   • Ensure all connector surfaces are clean and free of dirt.

3. Connect the Passenger-Side T-Connector:

   • Starting on the passenger side, insert the T-One® T-Connector end with the green wire between the vehicle’s wiring connectors and lock it into place.
   • Ensure the connectors are fully inserted with the locking tabs in place.

4. Route the Driver-Side T-Connector:

   • Route the T-One® T-Connector end with the yellow wire down the threshold to the driver’s side of the vehicle.
   • Insert the yellow wire connector between the driver-side taillight socket and the vehicle wiring harness.

5. Ground the White Wire:

   • Locate a suitable grounding point near the T-One® T-Connector black box, such as the vehicle’s frame or crossmember.
   • Clean the area of dirt and rustproofing.
   • Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.

   Note: Alternatively, route the white wire to the vehicle’s battery (located on the passenger side) and connect it to the Negative (-) battery cable.

6. Connect the Power Wire:

   • On the passenger side, locate the black power wire from the T-One® T-Connector box.
   • Attach the provided black 12-gauge wire and route it to the vehicle’s Positive (+) battery cable, avoiding areas that may pinch or damage the wire.

   Warning: Avoid routing near sharp edges or hot components.

7. Connect to the 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.

8. 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.

9. Mount the Black Box:

   • Locate a flat surface in an out-of-the-way place to mount the T-One® T-Connector black box using the provided double-sided tape.

10. Secure the Harness:

    • Use the provided cable ties to secure the T-One® T-Connector harness, ensuring the wires are clear of moving parts, heat sources, or areas that could pinch, cut, or melt the wires.

11. Reassemble the Vehicle:

    • Replace the rear threshold plate, floor covering, and any other components removed during installation.
    • Fold the rear seats back to their original position.

12. Store the 4-Flat Connector:

    • Store the 4-flat connector in the rear cargo area when not in use.
    • When in use, pull the 4-flat connector through the rear door and close the door carefully, ensuring the harness is not pinched.

Safety Notes:

• Overloading circuits can cause fires. Do not exceed stated product ratings.
• 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.

Installation Instructions for T-One® T-Connector for Lexus UX250

Part Numbers:

• 118858

Tools Required:

• Trim Panel Remover
• 10mm Socket & Ratchet or Wrench
• Drill (3/32” Drill Bit)
• 1/4” Socket
• Wire Crimpers
• Wire Cutters
• Phillips Head Screwdriver
• Test Probe

Step-by-Step Instructions:

1. Open the Rear Hatch:

   • Temporarily remove the floor covering and set it aside.
   • Remove the clips holding the threshold in place and carefully pry it up.
   • Open the side door and fold the rear seats forward to access the vehicle's wiring.

2. Locate the Taillight Wiring Harness:

   • On both the driver and passenger sides, locate the vehicle’s taillight wiring harness near the floor and rear corners of the vehicle.
   • Separate the connectors carefully, ensuring not to break the locking tabs.
   • Ensure all connector surfaces are clean and free of dirt.

3. Connect the Passenger-Side T-Connector:

   • Starting on the passenger side, insert the T-One® T-Connector end with the green wire between the vehicle’s wiring connectors and lock it into place.
   • Ensure the connectors are fully inserted with the locking tabs in place.

4. Route the Driver-Side T-Connector:

   • Route the T-One® T-Connector end with the yellow wire down the threshold to the driver’s side of the vehicle.
   • Insert the yellow wire connector between the driver-side taillight socket and the vehicle wiring harness.

5. Ground the White Wire:

   • Locate a suitable grounding point near the T-One® T-Connector black box, such as the vehicle’s frame or crossmember.
   • Clean the area of dirt and rustproofing.
   • Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.

   Note: Alternatively, route the white wire to the vehicle’s battery (located on the passenger side) and connect it to the Negative (-) battery cable.

6. Connect the Power Wire:

   • On the passenger side, locate the black power wire from the T-One® T-Connector box.
   • Attach the provided black 12-gauge wire and route it to the vehicle’s Positive (+) battery cable, avoiding areas that may pinch or damage the wire.

   Warning: Avoid routing near sharp edges or hot components.

7. Connect to the 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.

8. 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.

9. Mount the Black Box:

   • Locate a flat surface in an out-of-the-way place to mount the T-One® T-Connector black box using the provided double-sided tape.

10. Secure the Harness:

    • Use the provided cable ties to secure the T-One® T-Connector harness, ensuring the wires are clear of moving parts, heat sources, or areas that could pinch, cut, or melt the wires.

11. Reassemble the Vehicle:

    • Replace the rear threshold plate, floor covering, and any other components removed during installation.
    • Fold the rear seats back to their original position.

12. Store the 4-Flat Connector:

    • Store the 4-flat connector in the rear cargo area when not in use.
    • When in use, pull the 4-flat connector through the rear door and close the door carefully, ensuring the harness is not pinched.

Safety Notes:

• Overloading circuits can cause fires. Do not exceed stated product ratings.
• 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.

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 Information:

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