Installation Instructions for Mazda CX-7

Part Numbers:

• 87421
• 75512
• 44554

Tools Required:

• Wrenches: 11/16"
• Pull Wire (provided)
• Metal File
• Drill Bits: None

Wiring Access Location:

• SUV3, SUV4

Step-by-Step Instructions:

1. Lower the Exhaust:

   • Detach both rear rubber muffler hangers to lower the exhaust.

2. Enlarge Frame Rail Holes:

   • Enlarge either hole on the bottom of both frame rails with a metal file. Ensure the opening is large enough to fit the spacer.

3. Install Fasteners Using Pull Wire:

   • Feed the pull wire through the newly enlarged hole.
   • Attach the spacer and bolt, then feed them one at a time into the frame rail. Leave the pull wire attached.
   • Repeat on both frame rails.

4. Install Additional Fasteners:

   • Feed the second spacer and bolt through the enlarged hole and back out. Leave the pull wire attached.
   • Repeat on both frame rails.

5. Position the Hitch:

   • Feed the pull wires through the slot on the hitch brackets.
   • Carefully raise the hitch into position without pushing the fasteners back into the frame rails.

6. Attach Remaining Fasteners:

   • Hand-tighten all fasteners as shown in Figure 1.

7. Align Hitch:

   • Ensure the hitch is centered on the vehicle. The bracket may not fit snugly against the side of the frame rails.

8. Tighten Fasteners:

   • Use a torque wrench to tighten all 7/16" GR5 fasteners to 50 lb-ft (68 N·m).

9. Reattach Exhaust:

   • Reattach the rubber muffler hangers.

Hardware List:

• (4) 7/16"-14 x 1.25" GR5 Carriage Bolts
• (4) 7/16"-14 Hex Nuts
• (4) 7/16" Conical Washers
• (4) Spacers

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 Carrying (Ball Mount): Max Trailer Weight 3,500 lbs (1,589 kg), Max Tongue Weight 350 lbs (159 kg).
  • Weight Distributing: Not applicable.
• 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.

Installation Instructions for T-Connector Adapter

Part Numbers:

• 118405

Wiring Access Location:

• Rear taillight assemblies and under the vehicle near the bumper.

Tools Required:

• Drill with 3/32” drill bit.
• Philips head screwdriver.
• 10mm socket and ratchet or wrench.
• Wire crimpers and cutters.
• Trim panel remover.

Step-by-Step Instructions:

1. Access Vehicle Wiring:

   • Open the rear tailgate and remove the threshold panel.
   • For Mazda 6 Sedan and Coupe, remove the two 10mm nuts securing the driver’s side taillight housing. Pull the housing directly rearward to remove and set aside.

2. Prepare Wiring for Mazda 6 and Toyota Camry:

   • Locate the vehicle's wiring inside the trunk area by removing the plastic threshold cover and trunk liner.
   • Route the black 12-gauge wire through the opening in the taillight socket and behind the bumper to the engine compartment.

3. Driver’s Side Connection:

   • Attach the T-Connector containing the yellow and red wires between the vehicle wiring connectors behind the driver’s side taillight. Ensure the connectors are fully inserted and secure the locking tabs.

4. Passenger’s Side Connection:

   • Route the T-Connector with the green wire to the passenger side beneath the vehicle threshold cover.
   • Repeat step 3 using the T-Connector ends with the green wire.

5. Ground Connection:

   • Locate a suitable grounding point near the connector:
     • Option 1: Clean the area, drill a 3/32” hole, and secure the white wire with the provided eyelet and screw.
     • Option 2: Use an existing ground stud. Loosen the bolt, attach the eyelet, and retighten.

6. Routing the Power Wire:

   • Route the black 12-gauge wire from the taillight area to the engine compartment, avoiding hot pipes, heat shields, and the fuel tank.

7. Connect to the Battery:

   • Disconnect the negative battery cable.
   • Install the yellow fuse holder on the positive battery cable using the provided ring terminal and yellow butt connector.
   • Connect the other end of the fuse holder to the black 12-gauge wire using the provided yellow butt connector.

8. Reconnect Battery and Test Installation:

   • Reconnect the negative battery cable.
   • Insert the 10-amp fuse into the fuse holder.
   • Test the installation with a test light or trailer.

9. Final Steps:

   • Secure the T-Connector black box using the provided double-sided tape.
   • Use cable ties to secure the remaining harness to prevent damage or rattling.
   • Reinstall all panels, liners, and covers removed during the process.

   Specifications:

   • Max. stop/turn light: 1 per side (2.1 amps).
   • Max. tail lights: (4.2 amps).

Hardware List:

• T-Connector adapter.
• Black converter box.
• Yellow fuse holder with 10-amp fuse.
• Eyelet and screw.
• Double-sided tape.
• Cable ties.

Safety Notes:

• Ensure all connections are complete to avoid circuit overload.
• Test thoroughly after installation to confirm functionality.

Manufacturer Notes:

• Follow all vehicle warnings and installation instructions.
• Use a test light or trailer to confirm proper installation.
• Consult the vehicle owner’s manual for additional details.