Installation Instructions for Tesla Model X (2016-Present)

Part Numbers:

• 76143
• 84143
• CQT76143

Tools Required:

• Safety Glasses
• Ratchet
• Torque Wrench
• Sockets: 10mm, 15mm
• 6" Socket Extension
• T25 and T30 Torx Bits
• Plastic Trim Tools
• Flat Head Screwdriver
• Tape Measure
• Marker
• Utility Knife

Weight Capacities:

• Weight Carrying:
  • Max Gross Trailer Weight: 5,000 lbs (2,270 kg)
  • Max Tongue Weight: 750 lbs (341 kg)
• Weight Distributing:
  • Not Applicable

Installation Time:

• Estimated: 75 minutes

Step-by-Step Instructions:

1. Remove Forward Underbody Panel:

• Use a 10mm socket to remove (19) screws and flat washers securing the forward underbody panel to the rear underbody panel.
• Note: There are (4) screws located horizontally in the wheel well area, (2) per side.
• Caution: Do not remove the (3) forward-most screws from the panel. Support the panel as needed.

2. Remove Hitch Access Panel:

• Use a flat head screwdriver to remove (2) push pin rivets, then remove the hitch access panel.

3. Remove Rear Fascia:

• a. Use a T30 Torx bit to remove (2) screws from the rear underbody panel.
• b. Use a 10mm socket to remove (2) flange nuts from the wheel well liner on both sides.
• c. Use a flat head screwdriver to remove (2) push pin rivets from the wheel well liner on both sides.
• d. Use a T25 Torx bit to remove (1) screw vertically located behind the wheel well liner on both sides.
• e. Use a plastic trim tool to unclasp tabs and gently remove the lower wheel well trim.
• f. Open the rear liftgate and remove the (2) plastic liftgate bump stops.
• g. Use a plastic trim tool to lift the molding near the bump stop. Use a 10mm socket to remove (1) screw per side holding the fascia.
• h. Remove the fascia starting at the edges near the wheel wells and gently pull outward. Disconnect the (2) wiring harnesses and set the fascia aside.

4. Remove Bumper Beam:

• Use a 15mm socket to remove (8) flange nuts (4 per side). Remove the bumper beam and return it to the vehicle owner.

5. Trim Fascia:

• Use a tape measure, marker, and utility knife to cut a notch approximately 3-1/2" wide x 2-1/2" deep on the lower fascia underbody panel, centered on the vehicle.

6. Install Hitch:

• Raise the hitch into position, aligning the holes in the hitch with the studs on the end panel.
• Loosely reinstall the (8) existing hex flange nuts onto the bumper studs (4 per side).
• Use a torque wrench to tighten all CL10 hex flange nuts to 42 lb-ft (57 N·m).

7. Reinstall Components:

• Reinstall the fascia, wiring harnesses, trim, and other components removed in previous steps, using the original hardware.

8. Trim Hitch Access Panel:

• Use a tape measure, marker, and utility knife to cut a notch approximately 3-1/2" wide x 4-1/2" deep in the hitch access panel. Return it to the vehicle owner if not installed.

Safety Notes:

• Regularly inspect the hitch and all fasteners for secure attachment.
• Plug any holes in the trunk pan or body panels if the hitch is removed to prevent water or exhaust entry.
• Replace any damaged hitch or ball immediately.
• Always wear safety glasses and follow all safety precautions when working beneath the vehicle.
• Do not cut holes with a torch.

Specifications:

• Hitch Type: Class III
• Compliance: This product meets safety specifications and requirements as per V.E.S.C. Regulation V-5 and SAE J684.

Note: Always adhere to the vehicle manufacturer’s weight rating or the hitch’s maximum load rating, whichever is lower.

Installation Instructions for Modulite® HD Protector Vehicle Wiring

Part Number:

• 119148

Tools Required:

• Phillips Head #2 Screwdriver
• Wire Cutters
• Wire Strippers/Wire Crimpers
• Tester or Volt Meter
• Socket & Ratchet Set
• Drill with 3/32” Drill Bit
• Double-Sided Tape

Step-by-Step Instructions:

Tow Vehicle Inputs - Determination:

1. Disconnect and isolate the vehicle's negative battery terminal.
   • Warning: Read and follow all warnings and instructions on the tow vehicle's battery.
2. Splice the tow harness input wires to the vehicle as determined.
   • Caution: Use appropriate gauge wire splices. Blue taps are for 16-18 gauge wires only.

Harness Installation:

1. Determine the mounting location of the module and secure it using the double-sided tape provided.
   • Warning: Mount the module with the epoxy side pointed towards the ground to prevent water buildup.
2. Locate a suitable grounding point near the module, such as an existing ground stud, or drill a 3/32” hole to secure the white wire using the provided eyelet and screw.
   • Caution: Verify what is behind any surface before drilling to avoid damage or personal injury.
3. Route the power wire to the vehicle’s positive battery terminal. Use the provided fuse holder, butt connector, and ring terminal to connect to the battery.
   • Do not insert the 15 amp fuse yet.
   • Caution: Ensure the module is connected to a constant power source and avoid routing the wire near hot pipes, heat shields, fuel tanks, or pinch points.

Completion:

1. Secure the harness with cable ties provided to prevent damage or rattling.
2. Reconnect the vehicle's negative battery cable.
3. Insert the 15 amp fuse into the fuse holder and close the cap.
4. Test the installation using a test light or trailer. Check each function independently and in combination.

Hardware List:

• 8 × Cable Ties, 8.5”
• 1 × 15 AMP Fuse
• 2 × Ring Terminals
• 1 × Fuse Holder
• 2 × Yellow Butt Connectors
• 1 × Self-Tapping Screw
• 4 × Blue Taps
• 1 × Spade Terminal

Wiring Outputs:

• White Wire: Ground
• Brown Wire: Tail
• Yellow Wire: Left Turn/Brake
• Green Wire: Right Turn/Brake
• Red Wire: Stop (for 3-wire systems only)

Safety Notes:

• Always read and follow all warnings and instructions included with the product and the vehicle's manual.
• Do not exceed the manufacturer’s towing capacity or the product’s amperage ratings.
• Wear safety glasses and use all necessary safety precautions during installation.

Troubleshooting Guide:

• 4-Flat Not Functioning: Ensure input wires are correctly installed and repeat testing after removing the 15 amp fuse for 10 seconds.
• No Power to 4-Flat: Check the chassis ground and ensure the module is properly connected to a constant power source.

Specifications:

• Installation Time: Approximately 45 minutes
• Compatibility: Does not work with multiplex vehicles (BM, BT, or BTT). Use part numbers 119190 or 119250 for these systems.

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.

For warranty information, please download the full installation PDF.