Installation Instructions for T-Connector Adapter for Volvo XC70

Part Numbers:

• 118463

Wiring Access Location:

• Rear taillight assemblies and under the vehicle near the frame rail.

Tools Required:

• Test probe.
• Trim panel puller.
• Drill with a 3/32” drill bit.
• 10mm socket and ratchet.
• Wire crimpers and cutters.

Step-by-Step Instructions:

1. Access Rear Taillights:

   • Open the vehicle’s rear tailgate.
   • Remove the access panel on the driver’s side and pull out foam from the opening to locate the rear of the taillight. Repeat on the passenger side.
   • Remove the threshold, trunk floor panels, and trays. Set aside all items to prevent damage.

2. Locate Wiring Harness:

   • Identify the vehicle’s taillight wiring harness connected to the taillight socket. This harness will have a connection point matching the T-Connector adapter.
   • Separate the connectors carefully, ensuring no damage to the locking tabs. Verify that all surfaces are clean and free of dirt.

3. Connect T-Connector:

   • On the driver’s side, insert the T-Connector with the yellow wire between the vehicle wiring connectors and lock into place. Ensure all connectors are secure.
   • Route the T-Connector end with the green wire to the passenger side behind the panels and along the threshold. Repeat the connection process for the passenger side.

4. Ground Connection:

   • Locate a suitable grounding point near the connectors, such as the vehicle’s frame or crossmember. Do not drill into exposed surfaces.
   • Clean the area of dirt and rustproofing, drill a 3/32” hole, and secure the white wire using the provided eyelet and screw.

5. Connect Power:

   • Inside the vehicle, connect the black 12-gauge wire from the T-Connector black box to the red wire using the supplied yellow butt connector.
   • Route the black wire to the vehicle’s fuse box under the hood, avoiding areas that could pinch or damage the wire.
   • Attach the yellow fuse holder’s ring terminal to the vehicle’s power cable stud and secure it with a 10mm nut. Connect the other end of the fuse holder to the black wire using the yellow butt connector.

6. Complete Installation:

   • Reconnect the vehicle’s negative (-) battery cable and install the 10-amp fuse into the fuse holder.
   • Secure the remaining T-Connector harness with the provided cable ties to prevent damage or rattling.

7. Test Functionality:

   • Test the installation with a test light or trailer to confirm proper operation. For the initial test, temporarily remove the key from the ignition to reset the vehicle’s electrical system.

8. Reassembly:

   • Reinstall the threshold, storage covers, floor covering, and any other items removed during installation. Ensure no wires are pinched or cut.

   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.
• Yellow butt connector.
• Yellow fuse holder with 10-amp fuse.
• Cable ties.

Safety Notes:

• Verify all connections are complete for the T-Connector to function properly.
• Do not overload circuits. Exceeding the unit’s specifications can cause fires.
• Use caution when drilling to avoid vehicle damage or injury.

Manufacturer Notes:

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

Installation Instructions for T-Connector Adapter for Volvo XC70

Part Numbers:

• 118463

Wiring Access Location:

• Rear taillight assemblies and under the vehicle near the frame rail.

Tools Required:

• Test probe.
• Trim panel puller.
• Drill with a 3/32” drill bit.
• 10mm socket and ratchet.
• Wire crimpers and cutters.

Step-by-Step Instructions:

1. Access Rear Taillights:

   • Open the vehicle’s rear tailgate.
   • Remove the access panel on the driver’s side and pull out foam from the opening to locate the rear of the taillight. Repeat on the passenger side.
   • Remove the threshold, trunk floor panels, and trays. Set aside all items to prevent damage.

2. Locate Wiring Harness:

   • Identify the vehicle’s taillight wiring harness connected to the taillight socket. This harness will have a connection point matching the T-Connector adapter.
   • Separate the connectors carefully, ensuring no damage to the locking tabs. Verify that all surfaces are clean and free of dirt.

3. Connect T-Connector:

   • On the driver’s side, insert the T-Connector with the yellow wire between the vehicle wiring connectors and lock into place. Ensure all connectors are secure.
   • Route the T-Connector end with the green wire to the passenger side behind the panels and along the threshold. Repeat the connection process for the passenger side.

4. Ground Connection:

   • Locate a suitable grounding point near the connectors, such as the vehicle’s frame or crossmember. Do not drill into exposed surfaces.
   • Clean the area of dirt and rustproofing, drill a 3/32” hole, and secure the white wire using the provided eyelet and screw.

5. Connect Power:

   • Inside the vehicle, connect the black 12-gauge wire from the T-Connector black box to the red wire using the supplied yellow butt connector.
   • Route the black wire to the vehicle’s fuse box under the hood, avoiding areas that could pinch or damage the wire.
   • Attach the yellow fuse holder’s ring terminal to the vehicle’s power cable stud and secure it with a 10mm nut. Connect the other end of the fuse holder to the black wire using the yellow butt connector.

6. Complete Installation:

   • Reconnect the vehicle’s negative (-) battery cable and install the 10-amp fuse into the fuse holder.
   • Secure the remaining T-Connector harness with the provided cable ties to prevent damage or rattling.

7. Test Functionality:

   • Test the installation with a test light or trailer to confirm proper operation. For the initial test, temporarily remove the key from the ignition to reset the vehicle’s electrical system.

8. Reassembly:

   • Reinstall the threshold, storage covers, floor covering, and any other items removed during installation. Ensure no wires are pinched or cut.

   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.
• Yellow butt connector.
• Yellow fuse holder with 10-amp fuse.
• Cable ties.

Safety Notes:

• Verify all connections are complete for the T-Connector to function properly.
• Do not overload circuits. Exceeding the unit’s specifications can cause fires.
• Use caution when drilling to avoid vehicle damage or injury.

Manufacturer Notes:

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

Warranty Information:

• This product is covered by a warranty for X years from the date of purchase. The warranty covers defects in materials and workmanship under normal use.
• For complete warranty instructions, please download the full installation PDF.

For 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.

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Installation Instructions for 4-Way to 7-Way Adapter and Brake Control Wiring

Tools Required:

• Phillips Head Screwdriver
• Drill with 3/32" Drill Bit
• 10mm Socket & Ratchet or Wrench
• Wire Crimpers
• Wire Cutters
• Test Light or Multimeter
• Cable Ties

Part 1: Install the 4-Way to 7-Way Adapter

Step-by-Step Instructions:

1. Mount the Adapter:

   • Choose a suitable mounting point on the vehicle, typically near the hitch.
   • Use the provided bracket and screws to secure the adapter.

2. Connect the 4-Flat Plug:

   • Plug the 4-flat connector on the adapter into the existing 4-flat plug on the vehicle.
   • This connection enables tail lights, left turn, and right turn signals.

3. Ground the Adapter:

   • Locate a clean, solid grounding point near the adapter.
   • Drill a 3/32" hole if necessary and secure the white ground wire from the adapter using the provided screw and eyelet.

4. Leave Additional Wires Disconnected:

   • The following wires will remain disconnected until Part 2:
     • Black Wire: Power from the battery.
     • Blue Wire: Brake control output.
     • Yellow Wire: Reverse light (optional; leave disconnected unless needed).

5. Test Initial Connection:

   • Use a test light or trailer to verify functionality of the 4-way connections (tail lights, turn signals).

Part 2: Install Brake Control Wiring

Step-by-Step Instructions:

1. Mount Circuit Breakers:

   • Install two 30A circuit breakers on the firewall or another suitable location near the battery.
   • Use self-tapping screws to mount them securely.

2. Route Power Wires:

   • Connect the black 12-gauge wire from the 7-way adapter to the auxiliary side of one circuit breaker (this powers the 7-way socket).
   • Run a heavy-gauge wire from the battery's positive terminal to the battery side of this circuit breaker, using a ring terminal.
   • Run another heavy-gauge wire from the battery's positive terminal to the auxiliary side of the second circuit breaker (for the brake controller).

3. Install the Brake Controller:

   • Mount the brake controller under the dash on a firm surface.
   • Use the following connections:
     • Red Wire: Connect to the cold side of the brake switch (active only when the brake pedal is pressed).
     • Blue Wire: Connect to the blue wire on the 7-way adapter for trailer brakes.
     • White Wire: Connect to a solid ground point on the vehicle body.
     • Black Wire: Connect to the auxiliary side of the second 30A circuit breaker (provides power to the brake controller).

4. Optional: Connect Reverse Light Circuit:

   • If the trailer has a reverse light circuit, connect the yellow wire from the 7-way adapter to the vehicle’s reverse light circuit.

5. Reconnect the Battery:

   • Reattach the negative battery cable and ensure all connections are secure.
   • Insert the fuses into both circuit breakers.

6. Secure All Wires:

   • Use cable ties to secure all loose wires and prevent damage or rattling.

7. Test the System:

   • Verify functionality of all circuits (running lights, turn signals, brake lights, and brake controller output).
   • If applicable, test the reverse light circuit.

Notes:

• Most installations will only require connecting the black and blue wires from the 7-way adapter.
• Leave the yellow wire disconnected unless the trailer has a reverse light or surge brake lockout circuit.
• Always adhere to safety guidelines and verify all connections before use.

Warning: Incorrect wiring can cause damage to the vehicle or trailer. Test all connections carefully before use.

Installation Instructions for 4-Way to 7-Way Adapter and Brake Control Wiring

Tools Required:

• Phillips Head Screwdriver
• Drill with 3/32" Drill Bit
• 10mm Socket & Ratchet or Wrench
• Wire Crimpers
• Wire Cutters
• Test Light or Multimeter
• Cable Ties

Part 1: Install the 4-Way to 7-Way Adapter

Step-by-Step Instructions:

1. Mount the Adapter:

   • Choose a suitable mounting point on the vehicle, typically near the hitch.
   • Use the provided bracket and screws to secure the adapter.

2. Connect the 4-Flat Plug:

   • Plug the 4-flat connector on the adapter into the existing 4-flat plug on the vehicle.
   • This connection enables tail lights, left turn, and right turn signals.

3. Ground the Adapter:

   • Locate a clean, solid grounding point near the adapter.
   • Drill a 3/32" hole if necessary and secure the white ground wire from the adapter using the provided screw and eyelet.

4. Leave Additional Wires Disconnected:

   • The following wires will remain disconnected until Part 2:
     • Black Wire: Power from the battery.
     • Blue Wire: Brake control output.
     • Yellow Wire: Reverse light (optional; leave disconnected unless needed).

5. Test Initial Connection:

   • Use a test light or trailer to verify functionality of the 4-way connections (tail lights, turn signals).

Part 2: Install Brake Control Wiring

Step-by-Step Instructions:

1. Mount Circuit Breakers:

   • Install two 30A circuit breakers on the firewall or another suitable location near the battery.
   • Use self-tapping screws to mount them securely.

2. Route Power Wires:

   • Connect the black 12-gauge wire from the 7-way adapter to the auxiliary side of one circuit breaker (this powers the 7-way socket).
   • Run a heavy-gauge wire from the battery's positive terminal to the battery side of this circuit breaker, using a ring terminal.
   • Run another heavy-gauge wire from the battery's positive terminal to the auxiliary side of the second circuit breaker (for the brake controller).

3. Install the Brake Controller:

   • Mount the brake controller under the dash on a firm surface.
   • Use the following connections:
     • Red Wire: Connect to the cold side of the brake switch (active only when the brake pedal is pressed).
     • Blue Wire: Connect to the blue wire on the 7-way adapter for trailer brakes.
     • White Wire: Connect to a solid ground point on the vehicle body.
     • Black Wire: Connect to the auxiliary side of the second 30A circuit breaker (provides power to the brake controller).

4. Optional: Connect Reverse Light Circuit:

   • If the trailer has a reverse light circuit, connect the yellow wire from the 7-way adapter to the vehicle’s reverse light circuit.

5. Reconnect the Battery:

   • Reattach the negative battery cable and ensure all connections are secure.
   • Insert the fuses into both circuit breakers.

6. Secure All Wires:

   • Use cable ties to secure all loose wires and prevent damage or rattling.

7. Test the System:

   • Verify functionality of all circuits (running lights, turn signals, brake lights, and brake controller output).
   • If applicable, test the reverse light circuit.

Notes:

• Most installations will only require connecting the black and blue wires from the 7-way adapter.
• Leave the yellow wire disconnected unless the trailer has a reverse light or surge brake lockout circuit.
• Always adhere to safety guidelines and verify all connections before use.

Warning: Incorrect wiring can cause damage to the vehicle or trailer. Test all connections carefully before use.

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.

Warranty Information:

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

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.