Installation Instructions for T-Connector Adapter for Hyundai Santa Fe

Part Numbers:

• 118258

Tools Required:

• Trim Panel Remover
• 10mm Socket & Ratchet or Wrench
• Phillips Head Screwdriver
• Test Probe

Step-by-Step Instructions:

1. Lower the Spare Tire:

   • Lower the spare tire to gain access to the vehicle wiring.

2. Prepare the Rear Cargo Area:

   • Open the rear tailgate.
   • On the driver’s side, remove the access panels, threshold, trunk floor panels, and trays. Carefully set aside all items removed to avoid damage.
   • Remove any necessary trim panel fasteners for access.

3. Remove Fasteners:

   • On the driver’s side, remove the screw in the threshold plate area and two 10mm bolts to gain access behind the trim panel.
   • Carefully remove the lower interior trim panels on the driver’s side only.

4. Expose the Air Baffle and Trailer Input Harness:

   • Remove the cover to expose the air baffle and the vehicle’s trailer input harness and grommet.

5. Locate the Trailer Input Harness:

   • Underneath the vehicle on the driver’s side, behind the rear tire, locate the two vehicle trailer input harness connectors and grommet.
   • Ensure the connectors and grommet are clean and free of dirt.

6. Push Connectors and Grommet Into Vehicle:

   • Push the grommet and connectors into the vehicle.

7. Connect the T-Connector:

   • Inside the vehicle, locate the trailer input harness connectors. Remove the protective caps from the connectors, ensuring not to damage the locking tabs.
   • Insert the T-Connector harness into the vehicle’s tow-plug harness and lock it into place.

8. Route the 4-Flat Harness:

   • Route the 4-flat harness out of the vehicle through the opening exposed in step 6. Seat the grommet into the opening.

9. Mount the Black Box:

   • On the driver’s side, locate a flat surface and mount the T-Connector’s black converter box using the provided double-sided tape.
   • Secure the remainder of the T-Connector harness with the provided cable ties to prevent damage or rattling. Avoid areas that could pinch, cut, or melt the wire.

10. Reassemble the Vehicle:

    • Reposition the access panels, trays, trunk floor panels, and threshold.

11. Route and Secure the 4-Flat Harness:

    • Route the 4-flat harness underneath the vehicle to the center. Mount the 4-flat end in an accessible location using a bracket or electrical box (not included).

12. Test the Installation:

    • Test and verify the installation with a test light or trailer.
    • Reset the vehicle’s electrical system by temporarily removing the key from the ignition.

Specifications:

• Max. stop/turn light: 1 per side (2.1 amps)
• Max. tail lights: (5.6 amps)

Safety Notes:

• Route the wiring carefully to avoid hot pipes, heat shields, fuel tanks, or any points that may pinch or break the wire.
• All connections must be complete for the T-Connector to function properly.
• Overloading circuits can cause fires. Do not exceed the towing manufacturer’s rating or the unit specifications.

Additional Notes:

• Read and follow all warnings and installation instructions provided.
• Refer to the vehicle owner’s manual for additional guidance.

Warranty and Technical Support:

• For complete warranty details, please download the full installation PDF.
• For technical support, visit www.trailerjacks.com or call 877-869-6690.

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

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.

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.

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.

Warranty Information:

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

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.