Installation Instructions for T-Connector Adapter for Honda Fit, Honda Civic 4 Door, Honda Accord Sedan and Mazda 3

Part Numbers:

• 118420

Tools Required:

• Phillips head screwdriver
• Trim panel remover
• Drill with 3/32” drill bit
• 1/4” socket

Step-by-Step Instructions:

1. Access the Rear Cargo Area:

   • Open the trunk or hatch and locate the vehicle’s wiring inside the rear cargo area.
   • Remove the plastic threshold cover, side access panels, carpet panels, and cargo trays as needed.
   • Locate the connection points matching the ends of the T-Connector adapter on the back of each taillight housing.
   • Separate the connectors carefully, ensuring no damage to the locking tabs. Clean all surfaces to remove dirt.

   Note for 2007-2008 Honda Fit:

   • Use the vehicle’s blue 3-pin housing, NOT the green 3-pin housing.

2. Connect the Driver’s Side T-Connector:

   • Attach the T-Connector ends containing the yellow, brown, and red wires to the driver’s side taillight wiring.
   • Ensure connectors are fully inserted and the locking tabs are secure.

3. Route to the Passenger Side:

   • Route the T-Connector end containing the green wire below the threshold cover to the passenger’s side taillight housing.
   • Repeat step 2 for the passenger’s side using the green wire.

4. Ground the White Wire:

   • Locate a suitable grounding point near the connector, such as an existing ground stud.
   • If needed, drill a 3/32” hole and secure the white wire using the provided eyelet and screw. Avoid drilling into the vehicle floor or bed. Clean the grounding surface to remove dirt and rustproofing.

   Caution:

   • Verify what is behind any surface before drilling to avoid damage or personal injury.
   • Do not drill into exposed surfaces.

5. Reinstall Trim and Panels:

   • Replace all removed plastic trim panels, the threshold, storage covers, floor covering, and other items.
   • Be careful not to pinch or cut the wires during reassembly.

6. Test the Installation:

   • Verify all connections are complete for proper functionality.
   • Use a test light or trailer to confirm the T-Connector is working properly.

7. Store the 4-Flat Connector:

   • When not in use, store the 4-flat connector in the trunk or hatch area.

   Specifications:

   • Max. stop/turn light: 1 per side (2.1 amps)
   • Max. tail lights: (5 amps)

Safety Notes:

• Overloading the circuit can cause fires. Do not exceed the towing manufacturer’s rating or the unit specifications.
• Refer to the vehicle owner’s manual for additional guidance.

Manufacturer Notes:

• Follow all warnings and instructions provided with the product.
• Use a test light or trailer to confirm proper installation.

Installation Instructions for T-Connector Adapter

Applicable Models:

• Honda Fit (2007-2008)
• Honda Civic (4-Door Sedan)
• Honda Accord (Sedan)
• Mazda 3

Part Numbers:

• 118420

Tools Required:

• Phillips Head Screwdriver
• Trim Panel Remover
• Drill with 3/32” Drill Bit
• 1/4” Socket

Step-by-Step Instructions:

1. Access the Rear Cargo Area:

   • Open the trunk or hatch and remove any plastic threshold covers, side access panels, carpet panels, or cargo trays as needed.
   • Locate the vehicle’s taillight wiring connectors behind the trim panels on both the driver’s and passenger’s sides.
   • Carefully disconnect the vehicle’s wiring connectors, ensuring not to damage the locking tabs.
   • Clean the connectors to remove dirt or debris.

   Note for 2007-2008 Honda Fit:

   • Use the blue 3-pin housing for the connection, NOT the green 3-pin housing.

2. Install the Driver’s Side T-Connector:

   • Connect the T-Connector with the yellow, brown, and red wires to the driver’s side taillight wiring harness.
   • Ensure the connectors are fully inserted and the locking tabs are secure.

3. Route the T-Connector to the Passenger Side:

   • Route the T-Connector end with the green wire underneath the threshold cover to the passenger’s side.
   • Repeat Step 2 on the passenger’s side using the T-Connector with the green wire.

4. Ground the White Wire:

   • Locate a suitable grounding point near the connection, such as an existing ground stud.
   • If a ground stud is unavailable, drill a 3/32” hole in a suitable metal surface.
   • Secure the white wire using the provided eyelet and screw.

   Caution:

   • Avoid drilling into the vehicle’s floor, bed, or any surface with components behind it.
   • Verify the area before drilling to prevent damage or injury.

5. Reinstall the Trim Panels:

   • Replace the plastic trim panels, threshold, cargo trays, storage covers, and other components removed earlier.
   • Ensure the wiring is not pinched or cut during reassembly.

6. Test the Installation:

   • Use a test light or trailer to confirm that the T-Connector is working properly.
   • Verify the functionality of the following:
     • Left Turn Signal
     • Right Turn Signal
     • Brake Lights
     • Running Lights

7. Store the 4-Flat Connector:

   • When not in use, store the 4-flat connector in the vehicle’s trunk or cargo area.

Specifications:

• Max. Stop/Turn Light: 1 per side (2.1 amps)
• Max. Tail Lights: 5 amps

Safety Notes:

• Avoid exceeding the towing manufacturer’s rating or the unit’s specifications to prevent electrical failure or fire.
• Inspect the wiring periodically for wear or damage.

Warnings:

• Follow all warnings and installation instructions included with the product.
• Ensure all wiring is secured to avoid damage from sharp edges, heat, or moving parts.

Attention: This is a summary of the installation procedure. For complete instructions, including diagrams and detailed steps, download the full installation PDF.

Technical Support:
For assistance, visit www.trailerjacks.com or call 877-869-6690.