Installation Instructions for T-Connector Trailer Wiring Harness

Product Information:

• Part Number: N118593
• Application: Infiniti FX35, FX37, FX50

Tools Required:

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

Step-by-Step Instructions:

1. Prepare the Vehicle:

   • Open the rear tailgate.
   • Remove the threshold, trunk floor panels, and trays.
   • Carefully set all removed items aside to prevent damage.

2. Remove Cargo Loops and Screws:

   • On both the driver’s side and passenger’s side, remove the cargo loops and Phillips head screws.
   • Pull the trim panels away from the vehicle to expose the wiring harness.

3. Access the Taillight Wiring Harness:

   • Locate the vehicle’s taillight wiring harness on both sides.
   • Separate the connectors carefully without breaking the locking tabs.
   • Ensure that all surfaces of the connectors are clean and free of debris.

4. Install the Driver-Side T-Connector:

   • Attach the T-Connector with the yellow and brown wires to the vehicle’s wiring harness on the driver’s side.
   • Ensure the connectors are fully inserted and the locking tabs are engaged.

5. Route the Passenger-Side T-Connector:

   • Route the T-Connector with the green wire beneath the threshold cover to the passenger side.
   • Repeat Step 4 for the passenger-side taillight harness.

   Note: Route the 4-flat connector below the driver’s side trim panel into the rear storage compartment. Store it there when not in use.

6. Mount the Black Converter Box:

   • Locate a flat surface in an out-of-the-way area near the driver-side wiring.
   • Secure the T-Connector’s black converter box using the provided double-sided tape.

7. Ground the White Wire:

   • Locate a suitable grounding point near the black converter box, such as the vehicle frame or crossmember.
   • Clean the area to remove dirt and rust.
   • Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.

   Caution: Verify what is behind the surface before drilling to avoid vehicle damage or injury.

8. Route the Power Wire:

   • Locate the black 12-gauge wire from the T-Connector.
   • Attach the provided black 12-gauge wire using the supplied yellow butt connector.
   • Route the black wire:
     • Through an existing grommet and along the exterior frame, or
     • Along the interior thresholds into the engine compartment.

   Warning: Avoid routing the wire near hot pipes, heat shields, the fuel tank, or sharp edges that may damage the wire.

9. Connect the Power Wire to the Battery:

   • Disconnect the vehicle’s negative (-) battery cable.
   • Cut the yellow fuse holder wire and attach the ring terminal to one end.
   • Secure the ring terminal to the vehicle’s positive (+) battery terminal.
   • Connect the other end of the fuse holder to the black 12-gauge wire using the yellow butt connector.
   • Install the provided 10-amp fuse into the fuse holder.

10. Test the System:

    • Reconnect the vehicle’s negative (-) battery cable.
    • Use a test light or connect a trailer to verify the following functions:
      • Left Turn Signal
      • Right Turn Signal
      • Brake Lights
      • Running Lights

    Note: Reset the vehicle’s electrical system by temporarily removing the key from the ignition if needed.

11. Secure the Wiring:

    • Use the provided cable ties to secure the T-Connector wiring harness along the route.
    • Avoid areas where the wires may pinch, cut, or melt.

12. Reassemble the Vehicle:

    • Reinstall the trim panels, threshold, storage covers, and other components removed earlier.
    • Ensure the wiring harness is not pinched or damaged during reassembly.

Specifications:

• Stop/Turn Lights: 4.2 amps per side
• Taillights: 7.5 amps total

Safety Notes:

• Test all trailer wiring functions before towing.
• Do not exceed the amperage ratings specified.
• Routinely inspect all wiring and connections for signs of wear or damage.

Warnings:

• Overloading circuits can cause fires or damage.
• Route wires away from sharp edges, hot components, and moving parts.
• Follow all safety precautions when working near the vehicle’s battery.

Technical Support:
For additional assistance, contact the manufacturer’s support team.

Note: Store the 4-flat connector inside the vehicle’s rear storage compartment when not in use to protect it from damage.

Installation Instructions for T-Connector Trailer Wiring Harness

Product Information:

• Part Number: N118593
• Application: Infiniti FX35, FX37, FX50

Tools Required:

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

Step-by-Step Instructions:

1. Prepare the Vehicle:

   • Open the rear tailgate.
   • Remove the threshold, trunk floor panels, and trays.
   • Carefully set all removed items aside to prevent damage.

2. Remove Cargo Loops and Screws:

   • On both the driver’s side and passenger’s side, remove the cargo loops and Phillips head screws.
   • Pull the trim panels away from the vehicle to expose the wiring harness.

3. Access the Taillight Wiring Harness:

   • Locate the vehicle’s taillight wiring harness on both sides.
   • Separate the connectors carefully without breaking the locking tabs.
   • Ensure that all surfaces of the connectors are clean and free of debris.

4. Install the Driver-Side T-Connector:

   • Attach the T-Connector with the yellow and brown wires to the vehicle’s wiring harness on the driver’s side.
   • Ensure the connectors are fully inserted and the locking tabs are engaged.

5. Route the Passenger-Side T-Connector:

   • Route the T-Connector with the green wire beneath the threshold cover to the passenger side.
   • Repeat Step 4 for the passenger-side taillight harness.

   Note: Route the 4-flat connector below the driver’s side trim panel into the rear storage compartment. Store it there when not in use.

6. Mount the Black Converter Box:

   • Locate a flat surface in an out-of-the-way area near the driver-side wiring.
   • Secure the T-Connector’s black converter box using the provided double-sided tape.

7. Ground the White Wire:

   • Locate a suitable grounding point near the black converter box, such as the vehicle frame or crossmember.
   • Clean the area to remove dirt and rust.
   • Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.

   Caution: Verify what is behind the surface before drilling to avoid vehicle damage or injury.

8. Route the Power Wire:

   • Locate the black 12-gauge wire from the T-Connector.
   • Attach the provided black 12-gauge wire using the supplied yellow butt connector.
   • Route the black wire:
     • Through an existing grommet and along the exterior frame, or
     • Along the interior thresholds into the engine compartment.

   Warning: Avoid routing the wire near hot pipes, heat shields, the fuel tank, or sharp edges that may damage the wire.

9. Connect the Power Wire to the Battery:

   • Disconnect the vehicle’s negative (-) battery cable.
   • Cut the yellow fuse holder wire and attach the ring terminal to one end.
   • Secure the ring terminal to the vehicle’s positive (+) battery terminal.
   • Connect the other end of the fuse holder to the black 12-gauge wire using the yellow butt connector.
   • Install the provided 10-amp fuse into the fuse holder.

10. Test the System:

    • Reconnect the vehicle’s negative (-) battery cable.
    • Use a test light or connect a trailer to verify the following functions:
      • Left Turn Signal
      • Right Turn Signal
      • Brake Lights
      • Running Lights

    Note: Reset the vehicle’s electrical system by temporarily removing the key from the ignition if needed.

11. Secure the Wiring:

    • Use the provided cable ties to secure the T-Connector wiring harness along the route.
    • Avoid areas where the wires may pinch, cut, or melt.

12. Reassemble the Vehicle:

    • Reinstall the trim panels, threshold, storage covers, and other components removed earlier.
    • Ensure the wiring harness is not pinched or damaged during reassembly.

Specifications:

• Stop/Turn Lights: 4.2 amps per side
• Taillights: 7.5 amps total

Safety Notes:

• Test all trailer wiring functions before towing.
• Do not exceed the amperage ratings specified.
• Routinely inspect all wiring and connections for signs of wear or damage.

Warnings:

• Overloading circuits can cause fires or damage.
• Route wires away from sharp edges, hot components, and moving parts.
• Follow all safety precautions when working near the vehicle’s battery.

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

Note: Store the 4-flat connector inside the vehicle’s rear storage compartment when not in use to protect it from damage.