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

Part Numbers:

• 118652

Tools Required:

• Trim Panel Remover
• Drill (3/32” Drill Bit)
• Phillips Head Screwdriver
• Test Probe

Step-by-Step Instructions:

1. Locate the Vehicle Wiring:

   • Open the trunk or hatch.
   • Partially remove the plastic threshold cover, side access panels, carpet panels, and cargo trays to access the vehicle's rear wiring.

2. Identify the Taillight Wiring Harness:

   • On both the driver and passenger sides of the vehicle, locate the taillight wiring harness.
   • Disconnect the harness, ensuring not to break the locking tabs.
   • Clean all connectors to ensure proper connection.

3. Install the Driver-Side T-Connector:

   • Connect the T-One® T-Connector end with the yellow wire to the driver-side wiring harness.
   • Lock the connectors securely and route the green wire T-Connector to the passenger side.

4. Install the Passenger-Side T-Connector:

   • Connect the green wire T-Connector to the passenger-side wiring harness following the same procedure as the driver side.

5. Ground the White Wire:

   • Locate a suitable grounding point near the driver-side harness.
   • Drill a 3/32” hole or use an existing screw to secure the white wire with the provided ring terminal.

   Caution: Check for obstructions before drilling.

6. Battery Location:

   • For hybrid models, the vehicle battery is located in the rear cargo area under the floor covering.
   • For gas models, the battery is under the hood.

7. Connect the Power Wire:

   • Disconnect the negative (-) battery cable.
   • Remove the fuse from the yellow fuse holder.
   • Attach the ring terminal to the positive (+) battery cable and connect the black 12-gauge wire to the other end of the fuse holder using the yellow butt connector.

8. Route the Power Wire:

   • Route the black wire through a grommet and along the exterior frame to the T-Connector's black box.
   • Avoid areas that may pinch, cut, or damage the wire.

9. Reconnect the Battery:

   • Reconnect the negative (-) battery cable.
   • Insert the 15-amp fuse into the fuse holder.
   • Test the installation using a test light or trailer.

10. Mount the Black Box:

    • Find a flat, out-of-the-way surface on the driver’s side and secure the black converter box using double-sided tape.

11. Secure the Harness:

    • Use the provided cable ties to secure the remaining T-Connector harness, avoiding areas that may cause damage.

12. Reassemble the Vehicle:

    • Replace all panels, covers, and components removed during installation, ensuring no wires are pinched.

13. Store the 4-Flat Connector:

    • Store the 4-flat connector in the rear cargo area when not in use.

Specifications:

• Max. stop/turn light: 4.2 amps per side
• Max. tail lights: 7.5 amps

Safety Notes:

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

Manufacturer Notes:

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

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

Part Numbers:

• 118652

Tools Required:

• Trim Panel Remover
• Drill (3/32” Drill Bit)
• Phillips Head Screwdriver
• Test Probe

Step-by-Step Instructions:

1. Locate the Vehicle Wiring:

   • Open the trunk or hatch.
   • Partially remove the plastic threshold cover, side access panels, carpet panels, and cargo trays to access the vehicle's rear wiring.

2. Identify the Taillight Wiring Harness:

   • On both the driver and passenger sides of the vehicle, locate the taillight wiring harness.
   • Disconnect the harness, ensuring not to break the locking tabs.
   • Clean all connectors to ensure proper connection.

3. Install the Driver-Side T-Connector:

   • Connect the T-One® T-Connector end with the yellow wire to the driver-side wiring harness.
   • Lock the connectors securely and route the green wire T-Connector to the passenger side.

4. Install the Passenger-Side T-Connector:

   • Connect the green wire T-Connector to the passenger-side wiring harness following the same procedure as the driver side.

5. Ground the White Wire:

   • Locate a suitable grounding point near the driver-side harness.
   • Drill a 3/32” hole or use an existing screw to secure the white wire with the provided ring terminal.

   Caution: Check for obstructions before drilling.

6. Battery Location:

   • For hybrid models, the vehicle battery is located in the rear cargo area under the floor covering.
   • For gas models, the battery is under the hood.

7. Connect the Power Wire:

   • Disconnect the negative (-) battery cable.
   • Remove the fuse from the yellow fuse holder.
   • Attach the ring terminal to the positive (+) battery cable and connect the black 12-gauge wire to the other end of the fuse holder using the yellow butt connector.

8. Route the Power Wire:

   • Route the black wire through a grommet and along the exterior frame to the T-Connector's black box.
   • Avoid areas that may pinch, cut, or damage the wire.

9. Reconnect the Battery:

   • Reconnect the negative (-) battery cable.
   • Insert the 15-amp fuse into the fuse holder.
   • Test the installation using a test light or trailer.

10. Mount the Black Box:

    • Find a flat, out-of-the-way surface on the driver’s side and secure the black converter box using double-sided tape.

11. Secure the Harness:

    • Use the provided cable ties to secure the remaining T-Connector harness, avoiding areas that may cause damage.

12. Reassemble the Vehicle:

    • Replace all panels, covers, and components removed during installation, ensuring no wires are pinched.

13. Store the 4-Flat Connector:

    • Store the 4-flat connector in the rear cargo area when not in use.

Specifications:

• Max. stop/turn light: 4.2 amps per side
• Max. tail lights: 7.5 amps

Safety Notes:

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

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.

Manufacturer Notes:

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

Warranty Information:

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

Installation Instructions for 4-Way to 7-Way Adapter and Brake Control Wiring

Tools Required:

• Phillips Head Screwdriver
• Drill with 3/32" Drill Bit
• 10mm Socket & Ratchet or Wrench
• Wire Crimpers
• Wire Cutters
• Test Light or Multimeter
• Cable Ties

Part 1: Install the 4-Way to 7-Way Adapter

Step-by-Step Instructions:

1. Mount the Adapter:

   • Choose a suitable mounting point on the vehicle, typically near the hitch.
   • Use the provided bracket and screws to secure the adapter.

2. Connect the 4-Flat Plug:

   • Plug the 4-flat connector on the adapter into the existing 4-flat plug on the vehicle.
   • This connection enables tail lights, left turn, and right turn signals.

3. Ground the Adapter:

   • Locate a clean, solid grounding point near the adapter.
   • Drill a 3/32" hole if necessary and secure the white ground wire from the adapter using the provided screw and eyelet.

4. Leave Additional Wires Disconnected:

   • The following wires will remain disconnected until Part 2:
     • Black Wire: Power from the battery.
     • Blue Wire: Brake control output.
     • Yellow Wire: Reverse light (optional; leave disconnected unless needed).

5. Test Initial Connection:

   • Use a test light or trailer to verify functionality of the 4-way connections (tail lights, turn signals).

Part 2: Install Brake Control Wiring

Step-by-Step Instructions:

1. Mount Circuit Breakers:

   • Install two 30A circuit breakers on the firewall or another suitable location near the battery.
   • Use self-tapping screws to mount them securely.

2. Route Power Wires:

   • Connect the black 12-gauge wire from the 7-way adapter to the auxiliary side of one circuit breaker (this powers the 7-way socket).
   • Run a heavy-gauge wire from the battery's positive terminal to the battery side of this circuit breaker, using a ring terminal.
   • Run another heavy-gauge wire from the battery's positive terminal to the auxiliary side of the second circuit breaker (for the brake controller).

3. Install the Brake Controller:

   • Mount the brake controller under the dash on a firm surface.
   • Use the following connections:
     • Red Wire: Connect to the cold side of the brake switch (active only when the brake pedal is pressed).
     • Blue Wire: Connect to the blue wire on the 7-way adapter for trailer brakes.
     • White Wire: Connect to a solid ground point on the vehicle body.
     • Black Wire: Connect to the auxiliary side of the second 30A circuit breaker (provides power to the brake controller).

4. Optional: Connect Reverse Light Circuit:

   • If the trailer has a reverse light circuit, connect the yellow wire from the 7-way adapter to the vehicle’s reverse light circuit.

5. Reconnect the Battery:

   • Reattach the negative battery cable and ensure all connections are secure.
   • Insert the fuses into both circuit breakers.

6. Secure All Wires:

   • Use cable ties to secure all loose wires and prevent damage or rattling.

7. Test the System:

   • Verify functionality of all circuits (running lights, turn signals, brake lights, and brake controller output).
   • If applicable, test the reverse light circuit.

Notes:

• Most installations will only require connecting the black and blue wires from the 7-way adapter.
• Leave the yellow wire disconnected unless the trailer has a reverse light or surge brake lockout circuit.
• Always adhere to safety guidelines and verify all connections before use.

Warning: Incorrect wiring can cause damage to the vehicle or trailer. Test all connections carefully before use.

Installation Instructions for 4-Way to 7-Way Adapter and Brake Control Wiring

Tools Required:

• Phillips Head Screwdriver
• Drill with 3/32" Drill Bit
• 10mm Socket & Ratchet or Wrench
• Wire Crimpers
• Wire Cutters
• Test Light or Multimeter
• Cable Ties

Part 1: Install the 4-Way to 7-Way Adapter

Step-by-Step Instructions:

1. Mount the Adapter:

   • Choose a suitable mounting point on the vehicle, typically near the hitch.
   • Use the provided bracket and screws to secure the adapter.

2. Connect the 4-Flat Plug:

   • Plug the 4-flat connector on the adapter into the existing 4-flat plug on the vehicle.
   • This connection enables tail lights, left turn, and right turn signals.

3. Ground the Adapter:

   • Locate a clean, solid grounding point near the adapter.
   • Drill a 3/32" hole if necessary and secure the white ground wire from the adapter using the provided screw and eyelet.

4. Leave Additional Wires Disconnected:

   • The following wires will remain disconnected until Part 2:
     • Black Wire: Power from the battery.
     • Blue Wire: Brake control output.
     • Yellow Wire: Reverse light (optional; leave disconnected unless needed).

5. Test Initial Connection:

   • Use a test light or trailer to verify functionality of the 4-way connections (tail lights, turn signals).

Part 2: Install Brake Control Wiring

Step-by-Step Instructions:

1. Mount Circuit Breakers:

   • Install two 30A circuit breakers on the firewall or another suitable location near the battery.
   • Use self-tapping screws to mount them securely.

2. Route Power Wires:

   • Connect the black 12-gauge wire from the 7-way adapter to the auxiliary side of one circuit breaker (this powers the 7-way socket).
   • Run a heavy-gauge wire from the battery's positive terminal to the battery side of this circuit breaker, using a ring terminal.
   • Run another heavy-gauge wire from the battery's positive terminal to the auxiliary side of the second circuit breaker (for the brake controller).

3. Install the Brake Controller:

   • Mount the brake controller under the dash on a firm surface.
   • Use the following connections:
     • Red Wire: Connect to the cold side of the brake switch (active only when the brake pedal is pressed).
     • Blue Wire: Connect to the blue wire on the 7-way adapter for trailer brakes.
     • White Wire: Connect to a solid ground point on the vehicle body.
     • Black Wire: Connect to the auxiliary side of the second 30A circuit breaker (provides power to the brake controller).

4. Optional: Connect Reverse Light Circuit:

   • If the trailer has a reverse light circuit, connect the yellow wire from the 7-way adapter to the vehicle’s reverse light circuit.

5. Reconnect the Battery:

   • Reattach the negative battery cable and ensure all connections are secure.
   • Insert the fuses into both circuit breakers.

6. Secure All Wires:

   • Use cable ties to secure all loose wires and prevent damage or rattling.

7. Test the System:

   • Verify functionality of all circuits (running lights, turn signals, brake lights, and brake controller output).
   • If applicable, test the reverse light circuit.

Notes:

• Most installations will only require connecting the black and blue wires from the 7-way adapter.
• Leave the yellow wire disconnected unless the trailer has a reverse light or surge brake lockout circuit.
• Always adhere to safety guidelines and verify all connections before use.

Warning: Incorrect wiring can cause damage to the vehicle or trailer. Test all connections carefully before use.

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.

Warranty Information:

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

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.