Installation Instructions for Lexus GX460

Part Numbers:

• 75685
• 87580
• 44644
• 75209 (U-Haul)

Tools Required:

• Wrenches: 19mm
• Drill Bits: None

Wiring Access Location:

• N/A

Step-by-Step Instructions:

1. Position the Hitch:

   • Raise the hitch into position beneath the vehicle, aligning the attachment points with the existing weldnuts.

2. Install Fasteners:

   • Secure the hitch using four (4) M12 x 1.25 x 35mm CL8.8 hex bolts and four (4) 1/2” conical washers.
   • Hand-tighten fasteners initially.

3. Tighten Fasteners:

   • Use a torque wrench to tighten all M12 CL8.8 fasteners to 76 lb-ft (103 N·m).

Hardware List:

• (4) M12 x 1.25 x 35mm CL8.8 Hex Bolts
• (4) 1/2” Conical 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.
• 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 Distributing: Max Trailer Weight 5,000 lbs (2,270 kg), Max Tongue Weight 500 lbs (227 kg).
  • Weight Carrying (Ball Mount): Max Trailer Weight 5,000 lbs (2,270 kg), Max Tongue Weight 500 lbs (227 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:

• This hitch is compatible with the Lexus GX460.
• Ensure all fasteners are tightened to the specified torque for safe operation.

Installation Instructions for T-Connector Adapter

Part Numbers:

• 119251

Wiring Access Location:

• Inside the rear cargo area and along the vehicle's frame to the battery.

Tools Required:

• Phillips head #2 screwdriver
• Drill with 3/32” drill bit
• Wire cutters
• Wire strippers/crimpers
• Socket and ratchet set
• Volt meter or circuit tester

Step-by-Step Instructions:

1. Prepare for Installation:

   • Disconnect the vehicle’s negative battery terminal.
   • Open the rear hatch and remove the cargo floor, spare tire cover, and any panels blocking access to the wiring.

2. Determine Wiring System:

   • Use a volt meter or circuit tester to identify the vehicle's wiring system:
     • 2-wire system: Turn and brake signals are combined on one wire.
     • 3-wire system: Turn, brake, and tail signals are on separate wires.
     • Multiplexed systems: Brake and tail or all functions are combined.

3. Mount the Module:

   • Select a flat, secure location near the rear of the vehicle for the module.
   • Use the provided double-sided tape to secure the module with the epoxy side facing down to prevent water buildup.

4. Connect the T-Connector Harness:

   • Attach the appropriate wires from the T-Connector harness to the vehicle’s wiring:
     • Yellow wire: Left turn signal.
     • Green wire: Right turn signal.
     • Brown wire: Tail light signal.
     • Red wire (if applicable): Brake signal.

5. Secure the Ground:

   • Locate an existing ground point or drill a 3/32” hole near the module.
   • Clean the area of dirt and rustproofing. Secure the white wire with the provided eyelet and screw.

6. Route the Power Wire:

   • Attach the black wire from the module to the provided 12-gauge power wire using the yellow butt connector.
   • Route the power wire along the vehicle’s frame to the positive battery terminal, avoiding hot surfaces and moving parts.

7. Connect to the Battery:

   • Attach the fuse holder’s ring terminal to the positive battery terminal.
   • Connect the other end of the fuse holder to the power wire using the yellow butt connector.
   • DO NOT insert the fuse at this time.

8. Secure the Wiring:

   • Use the provided cable ties to secure all loose wires to prevent movement or damage.

9. Final Steps:

   • Reconnect the vehicle’s negative battery terminal.
   • Insert the 15-amp fuse into the fuse holder.
   • Test the installation with a test light or trailer.
   • Replace all removed panels and covers, ensuring no wires are pinched or exposed.

   Specifications:

   • Max. stop/turn light: 2 per side (4.2 amps).
   • Max. tail lights: (7.5 amps).

Hardware List:

• T-Connector adapter
• Eyelet and screw
• Yellow butt connectors
• 15-amp fuse and fuse holder
• Cable ties
• Double-sided tape

Safety Notes:

• Do not exceed the lower of the towing manufacturer’s rating or the unit specifications.
• Ensure all connections are secure and clean.

Manufacturer Notes:

• Use a test light or trailer to verify proper installation.
• Refer to the vehicle owner’s manual for additional guidance.
• If the system is not functioning correctly, follow the troubleshooting steps provided.