Product Details
- Brand: Tekonsha
- Model: 118578 85343 20506 7012A
- Includes: T-One T-Connector Custom Harness, Wiring Adapter, Trailer Brake Controller Installation Kit, Circuit Breaker
Compatibility Chart
Description
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Trailer Hitch 7 Way RV Wiring Kit For 13-18 Toyota RAV4 Avalon Plug Prong Pin Brake Control Ready Install Notes
Installation Instructions for T-Connector Adapter for Toyota RAV-4 and Toyota Avalon
Part Numbers:
- 118578
Tools Required:
- Trim Panel Remover
- 10mm & 14mm Socket & Ratchet or Wrench
- Drill (3/32” Drill Bit)
- 1/4” Socket
- Wire Crimpers
- Wire Cutters
- Phillips Head Screwdriver
- Test Probe
Step-by-Step Instructions:
-
Prepare the Vehicle:
- For Toyota RAV-4:
- Open the rear hatch and temporarily remove the rear threshold plate, privacy screen, storage covers, and floor covering.
- Open the rear door and fold the rear seat forward.
- For Toyota Avalon:
- Open the trunk and temporarily remove the rear threshold plate.
- Partially remove the felt trunk liner behind the taillights.
- For Toyota RAV-4:
-
Remove Interior Trim Panels:
- Partially remove the rear interior trim panels on both driver and passenger sides to expose the taillight wiring.
- Remove the fasteners carefully to avoid damage to the clips or panels.
-
Locate the Taillight Wiring Harness:
- On both driver and passenger sides, locate the vehicle's taillight wiring harness.
- Disconnect the harness carefully, ensuring not to damage the locking tabs.
- Clean the connectors to ensure proper contact.
-
Connect the Driver-Side T-Connector:
- Insert the T-Connector end with the yellow wire between the driver-side taillight wiring connectors.
- Ensure the connectors are fully inserted and secured with locking tabs.
-
Route the Passenger-Side T-Connector:
- Route the T-Connector with the green wire along the rear threshold to the passenger side.
- Repeat Step 4 to connect the green wire to the passenger-side taillight connectors.
-
Mount the T-Connector Black Box:
- Locate a flat surface near the driver-side taillight wiring.
- Mount the black converter box using the provided double-sided tape.
-
Ground the White Wire:
- Locate a suitable grounding point near the connector or drill a 3/32” hole.
- Secure the white wire with the provided eyelet and screw.
Caution:
- Avoid drilling into the vehicle floor or any exposed surfaces. Verify what lies beneath the surface before drilling.
-
Connect the Power Wire:
- Locate the black 12-gauge power wire from the T-Connector box.
- Attach the provided black wire using the supplied yellow butt connector.
-
Route the Power Wire:
- Route the black power wire through a grommet and along the exterior frame or existing wiring to the vehicle's engine compartment.
Warning:
- Avoid routing near hot pipes, heat shields, fuel tanks, or areas that may damage the wire.
-
Connect to the Vehicle Battery:
- Disconnect the negative (-) battery cable.
- Attach the yellow fuse holder to the positive (+) battery cable using the provided ring terminal.
- Connect the black wire to the fuse holder using the yellow butt connector.
- Insert the 15-amp fuse into the fuse holder.
-
Reconnect the Battery:
- Reconnect the negative (-) battery cable and test the system with a test light or trailer.
Warning:
- All connections must be complete for the T-Connector to function properly.
-
Secure the Wiring:
- Secure the remaining harness with the provided cable ties, avoiding areas that could pinch, cut, or melt the wires.
-
Reassemble the Vehicle:
- Replace all removed components, including trim panels, threshold, cargo trays, and taillights.
-
Store the 4-Flat Connector:
- Route the 4-flat connector into the driver’s side storage compartment and store it when not in use.
Specifications:
- Max. stop/turn light: 2 per side (4.2 amps)
- Max. tail lights: 7.5 amps
Safety Notes:
- Overloading circuits can cause fires. Do not exceed the stated ratings or vehicle manufacturer's specifications.
- Always wear safety glasses and follow all safety precautions during installation.
Manufacturer Notes:
- Store these instructions for future reference.
- Refer to the vehicle owner’s manual for additional details.
Installation Instructions for T-Connector Adapter for Toyota RAV-4 and Toyota Avalon
Part Numbers:
- 118578
Tools Required:
- Trim Panel Remover
- 10mm & 14mm Socket & Ratchet or Wrench
- Drill (3/32” Drill Bit)
- 1/4” Socket
- Wire Crimpers
- Wire Cutters
- Phillips Head Screwdriver
- Test Probe
Step-by-Step Instructions:
-
Prepare the Vehicle:
- For Toyota RAV-4:
- Open the rear hatch and temporarily remove the rear threshold plate, privacy screen, storage covers, and floor covering.
- Open the rear door and fold the rear seat forward.
- For Toyota Avalon:
- Open the trunk and temporarily remove the rear threshold plate.
- Partially remove the felt trunk liner behind the taillights.
- For Toyota RAV-4:
-
Remove Interior Trim Panels:
- Partially remove the rear interior trim panels on both driver and passenger sides to expose the taillight wiring.
- Remove the fasteners carefully to avoid damage to the clips or panels.
-
Locate the Taillight Wiring Harness:
- On both driver and passenger sides, locate the vehicle's taillight wiring harness.
- Disconnect the harness carefully, ensuring not to damage the locking tabs.
- Clean the connectors to ensure proper contact.
-
Connect the Driver-Side T-Connector:
- Insert the T-Connector end with the yellow wire between the driver-side taillight wiring connectors.
- Ensure the connectors are fully inserted and secured with locking tabs.
-
Route the Passenger-Side T-Connector:
- Route the T-Connector with the green wire along the rear threshold to the passenger side.
- Repeat Step 4 to connect the green wire to the passenger-side taillight connectors.
-
Mount the T-Connector Black Box:
- Locate a flat surface near the driver-side taillight wiring.
- Mount the black converter box using the provided double-sided tape.
-
Ground the White Wire:
- Locate a suitable grounding point near the connector or drill a 3/32” hole.
- Secure the white wire with the provided eyelet and screw.
Caution:
- Avoid drilling into the vehicle floor or any exposed surfaces. Verify what lies beneath the surface before drilling.
-
Connect the Power Wire:
- Locate the black 12-gauge power wire from the T-Connector box.
- Attach the provided black wire using the supplied yellow butt connector.
-
Route the Power Wire:
- Route the black power wire through a grommet and along the exterior frame or existing wiring to the vehicle's engine compartment.
Warning:
- Avoid routing near hot pipes, heat shields, fuel tanks, or areas that may damage the wire.
-
Connect to the Vehicle Battery:
- Disconnect the negative (-) battery cable.
- Attach the yellow fuse holder to the positive (+) battery cable using the provided ring terminal.
- Connect the black wire to the fuse holder using the yellow butt connector.
- Insert the 15-amp fuse into the fuse holder.
-
Reconnect the Battery:
- Reconnect the negative (-) battery cable and test the system with a test light or trailer.
Warning:
- All connections must be complete for the T-Connector to function properly.
-
Secure the Wiring:
- Secure the remaining harness with the provided cable ties, avoiding areas that could pinch, cut, or melt the wires.
-
Reassemble the Vehicle:
- Replace all removed components, including trim panels, threshold, cargo trays, and taillights.
-
Store the 4-Flat Connector:
- Route the 4-flat connector into the driver’s side storage compartment and store it when not in use.
Specifications:
- Max. stop/turn light: 2 per side (4.2 amps)
- Max. tail lights: 7.5 amps
Safety Notes:
- Overloading circuits can cause fires. Do not exceed the stated ratings or vehicle manufacturer's specifications.
- Always wear safety glasses and follow all safety precautions during installation.
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.
Manufacturer Notes:
- Store these instructions for future reference.
- Refer to the vehicle owner’s manual for additional details.
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:
-
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.
-
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.
-
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.
-
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).
- The following wires will remain disconnected until Part 2:
-
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:
-
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.
-
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).
-
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).
-
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.
-
Reconnect the Battery:
- Reattach the negative battery cable and ensure all connections are secure.
- Insert the fuses into both circuit breakers.
-
Secure All Wires:
- Use cable ties to secure all loose wires and prevent damage or rattling.
-
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:
-
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.
-
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.
-
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.
-
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).
- The following wires will remain disconnected until Part 2:
-
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:
-
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.
-
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).
-
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).
-
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.
-
Reconnect the Battery:
- Reattach the negative battery cable and ensure all connections are secure.
- Insert the fuses into both circuit breakers.
-
Secure All Wires:
- Use cable ties to secure all loose wires and prevent damage or rattling.
-
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.