Installation Instructions for T-One® T-Connector for Ford Transit 350

Part Numbers:

• 118722

Tools Required:

• Trim Panel Remover
• Drill (3/32” Drill Bit)
• Phillips Head Screwdriver
• Test Probe
• Flat Screwdriver

Step-by-Step Instructions:

1. Remove the Taillights:

   • Open the rear door and remove the screws securing the taillights on both the driver and passenger sides.
   • Carefully pull the taillights away from the vehicle, avoiding damage to the alignment pins.

2. Disconnect the Wiring Harness:

   • Locate the vehicle’s taillight wiring harness on both sides. The harness will have a connection point matching the ends of the T-One® T-Connector.
   • Separate the connector carefully, ensuring not to break the locking tabs. Clean all connectors to ensure a proper connection.

3. Install the Driver-Side T-Connector:

   • Insert the T-One® T-Connector end with the yellow wire between the vehicle wiring connectors and lock it into place. Ensure the connectors are fully inserted with locking tabs secured.

4. Route the Green Wire to the Passenger Side:

   • Route the harness containing the green wire and 4-flat connector through the opening behind the driver-side taillight.
   • Continue routing underneath the vehicle to the passenger side, bringing the green wire up through the opening behind the passenger-side taillight.

   Warning: Avoid hot pipes, heat shields, fuel tanks, or other areas where the wire could be pinched or damaged.

5. Install the Passenger-Side T-Connector:

   • Repeat Step 3 for the passenger side using the T-One® T-Connector end with the green wire.

6. Ground the White Wire:

   • Locate a suitable grounding point near the connectors on the driver’s side.
   • Drill a 3/32” hole and secure the white wire with the provided eyelet and screw.

   Caution: Verify the surface before drilling to avoid vehicle damage or personal injury.

7. Prepare the Power Wire:

   • Open the hood and locate the positive 12V power post. Using a 15mm socket, remove the nut.
   • If not already done, remove the fuse from the yellow fuse holder. Attach the ring terminal to the positive battery post and secure it with the removed nut.
   • Connect the other end of the fuse holder to the black 12-gauge power wire using the yellow butt connector.

8. Route the Power Wire:

   • Route the black wire from the engine compartment to the rear driver’s side of the vehicle.
   • Connect the black wire to the red power wire located on the T-One® T-Connector black box using the yellow butt connector.

   Warning: Avoid routing the wire near hot pipes, heat shields, or fuel tanks.

9. Reconnect the Battery:

   • Reconnect the vehicle’s negative (-) battery cable.
   • Install the 15-amp fuse into the fuse holder.

   Warning: Ensure all connections are complete before testing. Test the installation with a test light or trailer. For the initial test, reset the vehicle’s electrical system by temporarily removing the key from the ignition.

10. Mount the T-One® Black Box:

    • Mount the black box using the provided double-sided tape. Ensure the epoxy side faces downward to prevent water accumulation.
    • Secure the remainder of the T-One® harness with the provided cable ties, avoiding areas that could pinch, cut, or damage the wire.

11. Reassemble the Vehicle:

    • Reinstall the taillight housing assemblies and any panels or trim removed earlier. Ensure the wiring is properly routed and secured.

12. Store the 4-Flat Connector:

    • Mount the 4-flat connector in an accessible location using a bracket or electrical box (not included).

Specifications:

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

Safety Notes:

• Overloading circuits can cause fires. Do not exceed stated product ratings or vehicle manufacturer specifications.
• Always wear safety glasses and follow all safety precautions during installation.

Manufacturer Notes:

• Refer to the vehicle owner’s manual for additional details.
• Store these instructions for future reference.

Installation Instructions for T-One® T-Connector for Ford Transit 350

Part Numbers:

• 118722

Tools Required:

• Trim Panel Remover
• Drill (3/32” Drill Bit)
• Phillips Head Screwdriver
• Test Probe
• Flat Screwdriver

Step-by-Step Instructions:

1. Remove the Taillights:

   • Open the rear door and remove the screws securing the taillights on both the driver and passenger sides.
   • Carefully pull the taillights away from the vehicle, avoiding damage to the alignment pins.

2. Disconnect the Wiring Harness:

   • Locate the vehicle’s taillight wiring harness on both sides. The harness will have a connection point matching the ends of the T-One® T-Connector.
   • Separate the connector carefully, ensuring not to break the locking tabs. Clean all connectors to ensure a proper connection.

3. Install the Driver-Side T-Connector:

   • Insert the T-One® T-Connector end with the yellow wire between the vehicle wiring connectors and lock it into place. Ensure the connectors are fully inserted with locking tabs secured.

4. Route the Green Wire to the Passenger Side:

   • Route the harness containing the green wire and 4-flat connector through the opening behind the driver-side taillight.
   • Continue routing underneath the vehicle to the passenger side, bringing the green wire up through the opening behind the passenger-side taillight.

   Warning: Avoid hot pipes, heat shields, fuel tanks, or other areas where the wire could be pinched or damaged.

5. Install the Passenger-Side T-Connector:

   • Repeat Step 3 for the passenger side using the T-One® T-Connector end with the green wire.

6. Ground the White Wire:

   • Locate a suitable grounding point near the connectors on the driver’s side.
   • Drill a 3/32” hole and secure the white wire with the provided eyelet and screw.

   Caution: Verify the surface before drilling to avoid vehicle damage or personal injury.

7. Prepare the Power Wire:

   • Open the hood and locate the positive 12V power post. Using a 15mm socket, remove the nut.
   • If not already done, remove the fuse from the yellow fuse holder. Attach the ring terminal to the positive battery post and secure it with the removed nut.
   • Connect the other end of the fuse holder to the black 12-gauge power wire using the yellow butt connector.

8. Route the Power Wire:

   • Route the black wire from the engine compartment to the rear driver’s side of the vehicle.
   • Connect the black wire to the red power wire located on the T-One® T-Connector black box using the yellow butt connector.

   Warning: Avoid routing the wire near hot pipes, heat shields, or fuel tanks.

9. Reconnect the Battery:

   • Reconnect the vehicle’s negative (-) battery cable.
   • Install the 15-amp fuse into the fuse holder.

   Warning: Ensure all connections are complete before testing. Test the installation with a test light or trailer. For the initial test, reset the vehicle’s electrical system by temporarily removing the key from the ignition.

10. Mount the T-One® Black Box:

    • Mount the black box using the provided double-sided tape. Ensure the epoxy side faces downward to prevent water accumulation.
    • Secure the remainder of the T-One® harness with the provided cable ties, avoiding areas that could pinch, cut, or damage the wire.

11. Reassemble the Vehicle:

    • Reinstall the taillight housing assemblies and any panels or trim removed earlier. Ensure the wiring is properly routed and secured.

12. Store the 4-Flat Connector:

    • Mount the 4-flat connector in an accessible location using a bracket or electrical box (not included).

Specifications:

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

Safety Notes:

• Overloading circuits can cause fires. Do not exceed stated product ratings or vehicle manufacturer specifications.
• Always wear safety glasses and follow all safety precautions during installation.

Manufacturer Notes:

• Refer to the vehicle owner’s manual for additional details.
• Store these instructions for future reference.

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.

Warranty Information:

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

Note: Store the 4-flat connector in the rear cargo area when not in use to prevent damage.