Installation Instructions for T-Connector Adapter for Toyota Prius

Part Numbers:

• 118505

Wiring Access Location:

• Rear taillight wiring harness in the cargo area.

Tools Required:

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

Step-by-Step Instructions:

1. Access the Vehicle’s Rear Wiring:

   • Open the trunk or hatch and locate the vehicle wiring inside the rear cargo area.
   • Partially remove the plastic threshold cover, side access panels, carpet panels, and cargo trays.

2. Locate the Taillight Wiring Harness:

   • On both the driver’s and passenger’s sides, locate the vehicle’s taillight wiring harness.
   • Separate the connectors carefully to avoid breaking the locking tabs.
   • Ensure all connector surfaces are clean and free of dirt.

3. Install the T-Connector:

   • On the passenger side, insert the T-Connector end with the green wire between the vehicle wiring connectors and lock it into place.
   • Route the T-Connector end with the yellow wire to the driver’s side behind the panels and along the threshold. Repeat this step for the yellow wire on the driver’s side.

4. Ground Connection:

   • On the passenger side, locate a suitable grounding point near the connector.
   • Option 1: Clean the area of dirt and rustproofing. Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.
   • Option 2: Use an existing ground stud by loosening the bolt, placing the screw eyelet on the stud, and retightening the bolt.
   • Caution: Verify what is behind any surface before drilling to avoid damage or injury.

5. Connect to the Battery:

   • Locate the vehicle’s 12-volt battery inside the cargo area on the passenger side under the floor covering.
   • Disconnect the vehicle’s negative (-) battery terminal.
   • Attach the fuse holder (with the fuse removed) to the positive (+) terminal of the battery.
   • Reconnect the negative (-) battery terminal and install the 10-amp fuse into the fuse holder.

6. Mount the T-Connector Black Box:

   • On the passenger side, mount the T-Connector black 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 where the wires could be pinched or cut.

7. Reassembly:

   • Reinstall all removed plastic trim panels, threshold, storage covers, floor covering, and other items.
   • Ensure no wires are pinched or exposed during reassembly.

8. Test the Installation:

   • Use a test light or trailer to verify all connections and functionality.
   • Reset the vehicle’s electrical system by temporarily removing the key from the ignition before testing.

   Specifications:

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

Hardware List:

• T-Connector adapter
• Eyelet and screw
• Double-sided tape
• Cable ties
• Fuse holder with 10-amp fuse

Safety Notes:

• Do not exceed the towing manufacturer’s rating or the unit specifications.
• Overloading the circuit can cause fires.

Manufacturer Notes:

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

Installation Instructions for T-Connector Adapter for Toyota Prius

Part Numbers:

• 118505

Wiring Access Location:

• Rear taillight wiring harness in the cargo area.

Tools Required:

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

Step-by-Step Instructions:

1. Access the Vehicle’s Rear Wiring:

   • Open the trunk or hatch and locate the vehicle wiring inside the rear cargo area.
   • Partially remove the plastic threshold cover, side access panels, carpet panels, and cargo trays.

2. Locate the Taillight Wiring Harness:

   • On both the driver’s and passenger’s sides, locate the vehicle’s taillight wiring harness.
   • Separate the connectors carefully to avoid breaking the locking tabs.
   • Ensure all connector surfaces are clean and free of dirt.

3. Install the T-Connector:

   • On the passenger side, insert the T-Connector end with the green wire between the vehicle wiring connectors and lock it into place.
   • Route the T-Connector end with the yellow wire to the driver’s side behind the panels and along the threshold. Repeat this step for the yellow wire on the driver’s side.

4. Ground Connection:

   • On the passenger side, locate a suitable grounding point near the connector.
   • Option 1: Clean the area of dirt and rustproofing. Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.
   • Option 2: Use an existing ground stud by loosening the bolt, placing the screw eyelet on the stud, and retightening the bolt.
   • Caution: Verify what is behind any surface before drilling to avoid damage or injury.

5. Connect to the Battery:

   • Locate the vehicle’s 12-volt battery inside the cargo area on the passenger side under the floor covering.
   • Disconnect the vehicle’s negative (-) battery terminal.
   • Attach the fuse holder (with the fuse removed) to the positive (+) terminal of the battery.
   • Reconnect the negative (-) battery terminal and install the 10-amp fuse into the fuse holder.

6. Mount the T-Connector Black Box:

   • On the passenger side, mount the T-Connector black 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 where the wires could be pinched or cut.

7. Reassembly:

   • Reinstall all removed plastic trim panels, threshold, storage covers, floor covering, and other items.
   • Ensure no wires are pinched or exposed during reassembly.

8. Test the Installation:

   • Use a test light or trailer to verify all connections and functionality.
   • Reset the vehicle’s electrical system by temporarily removing the key from the ignition before testing.

Specifications:

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

Hardware List:

• T-Connector adapter
• Eyelet and screw
• Double-sided tape
• Cable ties
• Fuse holder with 10-amp fuse

Safety Notes:

• Do not exceed the towing manufacturer’s rating or the unit specifications.
• Overloading the circuit can cause fires.

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.

Note: Properly secure the T-Connector adapter and wires to avoid damage.

Warranty Information:

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