Installation Instructions for T-One® Connector for Honda Civic Sedan

Part Numbers:

• 118859

Tools Required:

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

Step-by-Step Instructions:

1. Access Rear Wiring:

   • Open the hatch and remove the trim panels covering the tail lights.
   • Using a 10mm socket, remove the mounting screws on both driver’s and passenger’s sides.
   • Carefully set the tail lights aside, ensuring not to break the mounting tabs.

2. Disconnect Taillight Wiring Harness:

   • Disconnect the vehicle wiring harness from both taillight sockets.
   • Ensure all connector surfaces are clean and free of dirt.

3. Route Driver-Side Harness:

   • Underneath the vehicle, route the harness containing the yellow wire up through the opening between the bumper and body to the driver’s side taillight pocket.

   Note: Use a fish wire between the taillight pocket and rear fascia to ease installation.

4. Install Driver-Side T-One® Connector:

   • Insert the T-One® Connector with the yellow wire between the vehicle’s wiring connectors and lock it into place.

5. Mount the Black Box:

   • Underneath the vehicle, determine a suitable mounting point behind the rear bumper fascia on the passenger’s side.
   • Mount the T-One® Connector black box using the provided double-sided tape.

   Caution:

   • Ensure the epoxy side of the module faces downward to prevent water buildup.
   • Verify the area behind any surface before drilling to avoid damage or injury. Do not drill into exposed surfaces.

6. Ground the White Wire:

   • Locate a grounding point near the black box or an existing ground stud.
   • Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.
   • Avoid drilling into the vehicle floor or bed.

   Warning: Avoid routing wires near hot pipes, heat shields, fuel tanks, or any other potentially damaging areas.

7. Route Passenger-Side Harness:

   • Route the green wire from the T-One® Connector underneath the vehicle up through the opening between the bumper and body to the passenger’s side taillight pocket.

   Note: Use a fish wire to aid installation.

8. Install Passenger-Side T-One® Connector:

   • Insert the T-One® Connector with the green wire between the vehicle’s wiring connectors and lock it into place.

9. Connect Power Wire:

   • Disconnect the vehicle’s Negative (-) battery cable.
   • Remove the fuse from the yellow fuse holder (provided).
   • 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.

   Warning: Avoid hot pipes, heat shields, fuel tanks, or any other points that could pinch or damage the wire.

10. Route Power Wire:

    • Starting from the front of the vehicle, route the black 12-gauge wire rearward along the frame rail.

11. Connect Power Wire to Black Box:

    • Attach the black 12-gauge wire to the black power wire on the T-One® Connector’s black box using the yellow butt connector.

12. Reconnect Battery and Test:

    • Reconnect the vehicle’s Negative (-) battery cable.
    • Install the 15-amp fuse into the fuse holder.
    • Test the installation with a test light or trailer.
    • Reset the vehicle’s electrical system by temporarily removing the key from the ignition.

13. Reassemble Components:

    • Reinstall trim panels, threshold, storage covers, and any other items removed during installation, ensuring wires are not pinched or damaged.
    • Store the 4-Flat connector in an accessible location using a bracket or electrical box.

Safety Notes:

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

Manufacturer Notes:

• Do not exceed the lower of the tow vehicle’s manufacturer ratings or the product’s stated amperage ratings.
• Store these instructions for future reference.

Installation Instructions for T-One® Connector for Honda Civic Sedan

Part Numbers:

• 118859

Tools Required:

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

Step-by-Step Instructions:

1. Access Rear Wiring:

   • Open the hatch and remove the trim panels covering the tail lights.
   • Using a 10mm socket, remove the mounting screws on both driver’s and passenger’s sides.
   • Carefully set the tail lights aside, ensuring not to break the mounting tabs.

2. Disconnect Taillight Wiring Harness:

   • Disconnect the vehicle wiring harness from both taillight sockets.
   • Ensure all connector surfaces are clean and free of dirt.

3. Route Driver-Side Harness:

   • Underneath the vehicle, route the harness containing the yellow wire up through the opening between the bumper and body to the driver’s side taillight pocket.

   Note: Use a fish wire between the taillight pocket and rear fascia to ease installation.

4. Install Driver-Side T-One® Connector:

   • Insert the T-One® Connector with the yellow wire between the vehicle’s wiring connectors and lock it into place.

5. Mount the Black Box:

   • Underneath the vehicle, determine a suitable mounting point behind the rear bumper fascia on the passenger’s side.
   • Mount the T-One® Connector black box using the provided double-sided tape.

   Caution:

   • Ensure the epoxy side of the module faces downward to prevent water buildup.
   • Verify the area behind any surface before drilling to avoid damage or injury. Do not drill into exposed surfaces.

6. Ground the White Wire:

   • Locate a grounding point near the black box or an existing ground stud.
   • Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.
   • Avoid drilling into the vehicle floor or bed.

   Warning: Avoid routing wires near hot pipes, heat shields, fuel tanks, or any other potentially damaging areas.

7. Route Passenger-Side Harness:

   • Route the green wire from the T-One® Connector underneath the vehicle up through the opening between the bumper and body to the passenger’s side taillight pocket.

   Note: Use a fish wire to aid installation.

8. Install Passenger-Side T-One® Connector:

   • Insert the T-One® Connector with the green wire between the vehicle’s wiring connectors and lock it into place.

9. Connect Power Wire:

   • Disconnect the vehicle’s Negative (-) battery cable.
   • Remove the fuse from the yellow fuse holder (provided).
   • 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.

   Warning: Avoid hot pipes, heat shields, fuel tanks, or any other points that could pinch or damage the wire.

10. Route Power Wire:

    • Starting from the front of the vehicle, route the black 12-gauge wire rearward along the frame rail.

11. Connect Power Wire to Black Box:

    • Attach the black 12-gauge wire to the black power wire on the T-One® Connector’s black box using the yellow butt connector.

12. Reconnect Battery and Test:

    • Reconnect the vehicle’s Negative (-) battery cable.
    • Install the 15-amp fuse into the fuse holder.
    • Test the installation with a test light or trailer.
    • Reset the vehicle’s electrical system by temporarily removing the key from the ignition.

13. Reassemble Components:

    • Reinstall trim panels, threshold, storage covers, and any other items removed during installation, ensuring wires are not pinched or damaged.
    • Store the 4-Flat connector in an accessible location using a bracket or electrical box.

Safety Notes:

• Overloading circuits can cause fires. Do not exceed stated product ratings.
• Always wear safety glasses and follow all 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.