Installation Instructions for Toyota Highlander and Highlander Hybrid (2020-Present)

Part Numbers:

• 75992
• 44763
• CQT75992

Tools Required:

• Ratchet
• Torque Wrench
• Safety Glasses
• Sockets: 17mm, 19mm

Wiring Access Location:

• SUV3, SUV4

Step-by-Step Instructions:

1. Prepare Frame Rails:

   • Remove any rubber plugs from the bottom of the frame rails to expose the weldnuts.
   • Clean the threads of the weldnuts with a wire brush to remove any debris or corrosion.

2. Position the Hitch:

   • Raise the hitch into position under the vehicle, aligning the slots on the hitch with the weldnuts in the vehicle frame.

3. Install Fasteners:

   • Secure the hitch using six (6) M12 x 1.25 x 40mm CL10.9 hex bolts and six (6) 1/2" conical toothed washers.
   • Ensure the toothed side of the washers faces the hitch.

4. Tighten Fasteners:

   • Use a torque wrench to tighten all M12 fasteners to 79 lb-ft (107 Nm).

5. Verify Installation:

   • Double-check that all bolts are securely tightened, and the hitch is properly aligned.

Hardware List:

• (6) M12 x 1.25 x 40mm CL10.9 Bolts
• (6) 1/2" Conical Toothed Washers

Safety Notes:

• Check the hitch frequently to ensure all fasteners and the ball are properly tightened.
• If the hitch is removed, plug all holes in the trunk pan or other body panels to prevent water and exhaust fumes from entering.
• Replace any damaged hitch or ball immediately.
• Always follow safety precautions when working beneath the vehicle, and wear eye protection.
• Do not cut access or attachment holes with a torch.

Specifications:

• Hitch Type and Weight Ratings:
  • Weight Carrying (Ball Mount): Max Trailer Weight 5,000 lbs (2,268 kg), Max Tongue Weight 500 lbs (227 kg).
  • Weight Distributing: Max Trailer Weight 6,000 lbs (2,721 kg), Max Tongue Weight 600 lbs (272 kg).
• Complies with safety specifications and requirements for connecting devices and towing systems of the State of New York, V.E.S.C. Regulation V-5, and SAE J684.

Additional Notes:

• Installation time is approximately 30 minutes for a professional installer.
• If you encounter difficulty installing, consult a professional or contact customer support.

Installation Instructions for T-Connector Adapter for Ford (Edge, Escapte, Econoline), Lincoln MKX, Mercury Mariner and Mazda Tribute

Part Numbers:

• 118551

Tools Required:

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

Step-by-Step Instructions:

For Ford Edge and Lincoln MKX:

1. Remove Rear Taillight Assemblies:

   • Open the rear tailgate and remove two bolts securing each taillight.
   • Carefully pry the taillight housings rearward, ensuring the alignment tabs are not broken.

2. Access the Vehicle’s Wiring:

   • Pull the taillight wire harness out and unseat the grommet.
   • Temporarily remove the floor coverings, cargo trays, plastic threshold cover, and side trim panels inside the cargo area.

3. Install Driver-Side T-Connector:

   • Route the T-Connector with yellow and brown wires through the opening exposed in Step 2.
   • Separate the vehicle’s connectors on the driver’s side, ensuring the mating surfaces are clean.
   • Plug the T-Connector into the vehicle’s wiring harness.

4. Route the Passenger-Side Harness:

   • Route the T-Connector with the green wire under the threshold cover to the passenger-side taillight housing.
   • Repeat Step 3 for the passenger side using the T-Connector with the green wire.

5. Ground the White Wire:

   • Locate a suitable grounding point on the driver’s side.
   • Clean the area and secure the white wire using the provided eyelet and screw.

6. Connect the Power Wire:

   • Route the black 12-gauge power wire from the driver’s side taillight pocket to the T-Connector’s black box.
   • Use the supplied yellow butt connector to attach the power wire to the black wire from the black box.
   • Route the remaining power wire along the frame rail to the vehicle’s battery, avoiding hot or moving parts.

7. Battery Connection:

   • Disconnect the vehicle’s negative battery cable.
   • Cut the yellow fuse holder wire, attach the ring terminal, and secure it to the positive battery cable.
   • Connect the other end of the fuse holder to the black 12-gauge wire using a yellow butt connector.
   • Reconnect the negative battery cable and install the 15-amp fuse into the fuse holder.

8. Secure the Harness:

   • Use the provided cable ties to secure the T-Connector harness, ensuring wires do not pinch or rub.
   • Mount the T-Connector black box in a clean, flat area using the provided double-sided tape.

9. Reassemble the Vehicle:

   • Reinstall the taillight assemblies, wheel wells, and other components removed during installation.

10. Test the Installation:

    • Test the T-Connector with a test light or trailer to verify functionality.

    Specifications:

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

Safety Notes:

• Do not exceed the towing manufacturer’s rating or the unit specifications.
• Overloading circuits can cause fires. Verify connections before use.

Manufacturer Notes:

• Store the 4-flat connector in the rear cargo area when not in use.
• Refer to the vehicle owner’s manual for additional guidance.

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 and Operation Instructions for the P3 Electronic Brake Control

Specifications:

• Supports 2, 4, 6, and 8 brake applications.
• Utilizes proportional braking with an inertial sensor.

Tools Required:

• Drill with a 1/8" bit.
• Screwdriver or nut driver.
• Wire crimp tool.
• Probe-type circuit tester.

Safety Notes:

1. Avoid mounting or activating RF-generating devices (e.g., cell phones) within 12 inches of the brake control.
2. Always adhere to the vehicle's Gross Combined Weight Rating (GCWR).
3. Do not use the Boost feature during icy or slippery road conditions.
4. Disconnect the trailer plug before testing a breakaway switch to prevent damage.

Hardware List:

• P3 Brake Control Unit.
• Mounting bracket.
• Wiring harness.
• #8 x 3/8" self-tapping screws.

Installation Instructions:

Mounting the Brake Control:

1. Traditional Bracket Mount:

   • Secure the bracket to a solid surface using the provided screws.
   • Attach the brake control unit and adjust to the desired angle.
   • Tighten screws securely.

2. Under Dash Pocket Mount:

   • Secure the small metal bracket with screws to a flat surface.
   • Attach the T-slot mount to the metal bracket and insert the brake control.

Wiring the Brake Control:

• Option 1: Use the included pigtail wiring harness for a generic installation.
• Option 2: Use an OEM-specific wiring harness compatible with the vehicle's tow package.
• Wire Functions:
  • Black: Positive power (+12V).
  • White: Vehicle ground.
  • Red: Cold side of brake pedal switch.
  • Blue: Trailer brakes output.

Setting Up the Control:

1. Connect the trailer to the vehicle.
2. Use the Menu/Options button to access the setup screen.
3. Select the brake type:
   • Electric: For electric brakes.
   • Hydraulic: For electric over hydraulic braking systems.
4. Adjust the power output to ensure effective braking without wheel lock-up.

Boost Feature:

• Provides enhanced braking sensitivity.
• Available in three levels:
  • B1: Light braking boost.
  • B2: Moderate braking boost.
  • B3: Aggressive braking boost.
• Recommended for heavier trailers or varying load conditions.

Reverse Mode:

• Cancel Boost and Hold features for 3 minutes by pressing and holding the Boost button for 5 seconds while holding the brake pedal.

Troubleshooting Guide:

Maintenance:

• Inspect connections and wiring regularly for damage or wear.
• Adjust trailer brakes after the first 200 miles of use and every 3,000 miles thereafter.
• Clean the brake control unit periodically to maintain optimal performance.

Warranty Information:

• Limited Lifetime Warranty:
  • Covers defects in materials and workmanship under normal use.
  • Excludes damage caused by misuse, improper installation, or external factors.
• Attention: For complete warranty instructions, 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.