Installation Instructions for T-One® T-Connector for Jaguar F-Pace and Land Rover Range Rover Velar

Part Numbers:

• 118785

Tools Required:

• Trim Panel Remover
• 10mm Socket & Ratchet or Wrench
• Torx T20 Driver
• Drill (3/32” Drill Bit)
• Wire Crimpers
• Wire Cutters
• Phillips Head Screwdriver
• Test Probe

Step-by-Step Instructions:

1. Prepare the Vehicle:

   • Open the tailgate and remove the vehicle’s taillight assemblies.
   • Remove all floor coverings to access the battery in the cargo area.
   • Inside the vehicle behind the taillights, remove the plastic cover and pull back the insulation liner to access the plastic wing nut holding the taillight in place.
   • Disconnect the connectors and carefully set the taillight housings aside.
   • Repeat this step for the passenger-side taillight assembly.

2. Remove the Bumper Fascia:

   • Using a 10mm socket and Phillips screwdriver, remove 3 screws and 4 plastic screws from the bottom appearance panel and set them aside.
   • Use a screwdriver to remove 2 screws from the wheel well on each side.
   • Behind the wheel wells, use a T20 Torx socket to remove 2 screws and a screwdriver to remove 4 screws on each side.
   • Use plastic trim tools to remove the fascia, starting at the outer edges near the wheel wells and gently pulling it free.
   • Disconnect the wiring harness on the driver’s side if present.

3. Route the Driver-Side T-Connector:

   • Route the T-Connector end with the yellow and brown wires behind the fascia supports, following the existing wire harness to the taillight pocket.
   • Insert the T-Connector end with the yellow wire between the vehicle wiring connectors and lock it into place.

4. Mount the Black Box Module:

   • Locate a flat surface above the exhaust system on the driver’s side, avoiding hot pipes and heat shields.
   • Mount the T-Connector’s black converter box using the provided double-sided tape or wire ties.
   • Warning: Ensure the epoxy side of the module is pointed downward to prevent water buildup.

5. 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 avoid damage or injury.

6. Route the Passenger-Side T-Connector:

   • Route the T-Connector end with the green wire to the passenger side and up behind the fascia bumper supports to the taillight pocket.
   • Insert the T-Connector end with the green wire between the vehicle wiring connectors and lock it into place.

7. Route the Power Wire:

   • Locate the black 12-gauge power wire from the T-Connector box.
   • Slit the grommet on the driver’s side and route the power wire through it.
   • Attach the provided black 12-gauge wire and route it along the threshold, following existing wiring to the battery’s positive terminal (+).

   Warning: Avoid routing near hot pipes, heat shields, or the fuel tank.

8. Connect to the Vehicle Battery:

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

9. Reconnect the Battery and Test:

   • Reconnect the vehicle’s Negative (-) battery cable.
   • Install the 15-amp fuse into the fuse holder.
   • Test the installation using a test light or trailer.

10. Reassemble the Vehicle:

    • Reinstall the taillight assemblies, plastic trim panels, threshold, storage covers, floor coverings, and other removed components, ensuring no wires are pinched or damaged.

11. Secure the Wiring Harness:

    • Use the provided cable ties to secure the harness, avoiding areas that may pinch, cut, or melt the wires.

12. Mount the 4-Flat Connector:

    • Mount the 4-flat connector end in an accessible location using a bracket or electrical box (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.

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.