Installation Instructions for Honda Civic Sedan, Coupe, and Hatchback (2016-Current)

Part Numbers:

• 24954
• 77336
• CQT24954

Wiring Access Location:

• PC3, PC4

Tools Required:

• Ratchet
• Torque Wrench
• Safety Glasses
• Sockets: 10mm, 12mm, 13mm
• 5mm Allen Wrench
• Flat-Head Screwdriver
• Small Phillips Screwdriver
• Utility Knife
• Die Grinder
• Drill with Small Drill Bit
• Tape Measure
• Marker
• 6" Socket Extension

Specifications:

• Max Gross Trailer Weight: 2,000 lb. (908 kg)
• Max Tongue Weight: 200 lb. (90.8 kg)
• Note: Do not exceed the towing vehicle manufacturer’s rating.

Installation Time:

• Approx. 65 minutes (Professional Installer)

Step-by-Step Instructions:

1. Mark Fascia Centerline:

   • Use a marker or tape to mark the centerline of the fascia for reference.

2. Remove Plastic Rivets and Screws:

   • Remove plastic rivets from the supports on the bottom of the bumper fascia by pulling the center post of the rivet approximately 1/4". Push out the rivet by hand. Remove 3–4 Phillips screws from each wheel well.

3. Remove Trunk Fasteners:

   • Open the trunk and remove two hex screws from under the rear hatch securing the bumper fascia. Repeat for both sides.

4. Remove Bumper Fascia:

   • Loosen tail light bolts to allow additional clearance for fascia removal.
   • Gently pull upward from the rear wheel well trim panel on both sides, unclipping the tabs inside. Work up toward the tail lights, releasing cleats with a small screwdriver as needed. Continue to remove along the bottom to the trunk, detaching any wiring harness if present. Set the fascia aside.

5. Remove Bumper:

   • Remove eight (8) bolts holding the bumper in place. Return the fasteners to the vehicle owner.

6. Trim Bumper (If Necessary):

   • Use a die grinder to remove any material as shown in Figure 2.

7. Install Hitch and Bumper:

   • Raise the hitch and bumper into position as shown in Figure 1. Secure with the provided fasteners.

8. Tighten Fasteners:

   • Torque all M8 CL8.8 fasteners to 20 Lb.-Ft. (27 N*M).

9. Trim Fascia:

   • Using the centerline marked in Step 1, trim a 2.50” x 4.00” section from the fascia as shown in Figure 3. Use a drill to create rounded corners.

10. Reinstall Fascia:

    • Align and reinstall the fascia, ensuring all fasteners and wiring harnesses are reattached in reverse order of removal.

Hardware List:

• (8) Hex Bolts: M8 x 1.25 x 30mm CL8.8
• (8) Conical Washers: 3/8"

Safety Notes:

• Regularly inspect all fasteners and the hitch ball to ensure they remain securely tightened.
• Plug any holes in the trunk pan or body panels if the hitch is removed to prevent water or exhaust fumes from entering.
• Replace any damaged hitch or ball immediately.
• Always wear eye protection and observe safety precautions when working beneath the vehicle.
• Do not cut access or attachment holes with a torch.

Drawbar:

• Drawbar Kit: 3593
• Important: The drawbar must be used in the rise position only.

Compliance:

• This product complies with SAE J684, V.E.S.C. Regulation V-5, and safety requirements of the State of New York.

Additional Notes:

• Frequently check the hitch to ensure all fasteners remain tight.

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.