Installation Instructions for 4-Way to 5-Way Adapter

Tools Required:

• Wire Crimpers
• Wire Cutters
• Test Light or Multimeter
• Quick Splice Connector (provided)
• Additional Wire (if needed for reverse light connection)
• Cable Ties (optional)
• Silicone Sealant (optional)

Overview:

This adapter converts your 4-way flat trailer connector to a 5-way flat, adding reverse light functionality for trailers with reverse lights or surge brake lockout systems.

Step-by-Step Instructions:

1. Mount the Adapter:

• Select a suitable mounting location near the hitch and securely install the adapter.

2. Connect the 4-Way Plug:

• Plug the 4-way flat connector from the adapter into the existing 4-way flat connector on your vehicle.
• This connection provides tail lights, left turn, right turn, and brake light functions.

3. Ground the Adapter:

• Locate a solid ground point near the adapter, such as the vehicle frame.
• Clean the surface to ensure proper contact.
• Secure the white ground wire from the adapter using the provided eyelet and a self-tapping screw.

4. Connect the Reverse Light Circuit:

• Locate the Reverse Light Wire:

  • Identify the reverse light circuit on your vehicle, typically found near the tail light assembly.
  • Use the provided quick splice connector to attach the adapter's blue wire to the vehicle’s reverse light circuit.

• Extend the Blue Wire (If Needed):

  • If the adapter's blue wire is too short, splice in additional wire to reach the reverse light circuit.
  • Route the wire safely, avoiding hot or moving parts, and secure it with cable ties.

• Seal the Connection:

  • If routing the wire through a grommet, seal any openings with silicone to prevent water ingress.

5. Secure the Wiring:

• Use cable ties to secure all wires and prevent them from hanging loosely or contacting sharp edges.

6. Test the Adapter:

• Plug the adapter into your trailer’s 5-way flat connector or use a test light to verify functionality:
  • Brown Wire: Tail lights (solid when headlights are on).
  • Yellow Wire: Left turn signal and brake light (flashes with turn signal).
  • Green Wire: Right turn signal and brake light (flashes with turn signal).
  • Blue Wire: Reverse light (active when the vehicle is in reverse).
  • White Wire: Ground (continuity with the vehicle's ground).

Notes:

• This adapter is designed specifically for trailers requiring a reverse light or surge brake lockout circuit.
• Ensure all connections are secure to avoid intermittent functionality.
• Always follow safety guidelines during installation and verify all circuits before use.

Warning: Improper installation or overloaded circuits can result in damage or fire. Test all connections carefully.

Installation Instructions for 4-Way to 5-Way Adapter

Tools Required:

• Wire Crimpers
• Wire Cutters
• Test Light or Multimeter
• Quick Splice Connector (provided)
• Additional Wire (if needed for reverse light connection)
• Cable Ties (optional)
• Silicone Sealant (optional)

Overview:

This adapter converts your 4-way flat trailer connector to a 5-way flat, adding reverse light functionality for trailers with reverse lights or surge brake lockout systems.

Step-by-Step Instructions:

1. Mount the Adapter:

• Select a suitable mounting location near the hitch and securely install the adapter.

2. Connect the 4-Way Plug:

• Plug the 4-way flat connector from the adapter into the existing 4-way flat connector on your vehicle.
• This connection provides tail lights, left turn, right turn, and brake light functions.

3. Ground the Adapter:

• Locate a solid ground point near the adapter, such as the vehicle frame.
• Clean the surface to ensure proper contact.
• Secure the white ground wire from the adapter using the provided eyelet and a self-tapping screw.

4. Connect the Reverse Light Circuit:

• Locate the Reverse Light Wire:

  • Identify the reverse light circuit on your vehicle, typically found near the tail light assembly.
  • Use the provided quick splice connector to attach the adapter's blue wire to the vehicle’s reverse light circuit.

• Extend the Blue Wire (If Needed):

  • If the adapter's blue wire is too short, splice in additional wire to reach the reverse light circuit.
  • Route the wire safely, avoiding hot or moving parts, and secure it with cable ties.

• Seal the Connection:

  • If routing the wire through a grommet, seal any openings with silicone to prevent water ingress.

5. Secure the Wiring:

• Use cable ties to secure all wires and prevent them from hanging loosely or contacting sharp edges.

6. Test the Adapter:

• Plug the adapter into your trailer’s 5-way flat connector or use a test light to verify functionality:
  • Brown Wire: Tail lights (solid when headlights are on).
  • Yellow Wire: Left turn signal and brake light (flashes with turn signal).
  • Green Wire: Right turn signal and brake light (flashes with turn signal).
  • Blue Wire: Reverse light (active when the vehicle is in reverse).
  • White Wire: Ground (continuity with the vehicle's ground).

Notes:

• This adapter is designed specifically for trailers requiring a reverse light or surge brake lockout circuit.
• Ensure all connections are secure to avoid intermittent functionality.
• Always follow safety guidelines during installation and verify all circuits before use.

Warning: Improper installation or overloaded circuits can result in damage or fire. Test all connections carefully.

Warranty Information:

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

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.