Conntek Heavy-Duty 7-Way Plug to ROJ 4 Feet

Introduction

This manual provides detailed instructions for the installation, wiring, and general use of the Conntek Heavy-Duty 7-Way Plug to ROJ (Ready-to-Join) trailer cord. This product is designed to provide a reliable electrical connection between a towing vehicle and a trailer, utilizing standard RV color coding for ease of integration into existing or new wiring systems. The ROJ end consists of bare wires, allowing for custom connections to a junction box or direct wiring.

Image: The Conntek Heavy-Duty 7-Way Plug to ROJ 4 Feet cable, showing the coiled cable and the 7-way plug connector.

Safety Information

Proposition 65 Warning: This product may expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Always handle electrical components with care and ensure proper insulation to prevent electrical hazards.

Always disconnect power before performing any wiring or maintenance. Ensure all connections are secure and properly insulated to prevent short circuits and electrical fires.

Product Features

• Trailer Cord Uses RV Color Coding for standardized connections.
• Wire Gauges: Includes (2) 10AWG, (1) 12AWG, and (4) 14AWG cables for various power requirements.
• Cable Jacket: STW rated for Heavy Service and Weather, ensuring durability in outdoor conditions.
• Heavy-Duty Gauge Brass used for Double Prong Connections to ensure a tight and reliable fit.
• Cable Component is UL Listed - E90164-D, indicating compliance with safety standards.
• Length: 4 Feet, providing sufficient reach for many trailer applications.

Image: A detailed view of the 7-way plug and the bare wire ends (ROJ) of the cable, showing the robust construction.

Setup and Installation

The Conntek 7-Way Plug to ROJ cable is designed for direct wiring into a trailer's electrical system, typically through a junction box. The ROJ end provides individual wires that must be connected according to the RV standard wiring color code.

7-Way Plug Pinout Diagram

Image: This diagram illustrates the function and wire gauge for each pin on the 7-way trailer plug, including 12V Charge Line, Tail & Running Lights, Right Turn & Stop, Left Turn & Stop, Brakes, Ground Point, and Reverse Lights.

RV Trailer 7-Way Cable Wiring Diagram

Refer to the following diagram for the standard RV color coding and corresponding functions. It is crucial to match these functions correctly when connecting the ROJ wires to your trailer's electrical system.

Image: This diagram provides the RV standard color codes and their associated functions for a 7-way trailer cable, including Black (12V Charge Line), White (Ground Point), Blue (Brakes), Red (Left Turn & Stop), Brown (Right Turn & Stop), Yellow (Reverse Lights), and Green (Tail & Running Lights).

Wire Gauge Information

The cable includes wires of different gauges to accommodate various electrical loads. Understanding these gauges is important for proper installation.

Image: Visual representation of the different wire gauges included in the cable: 10 gauge (black, white), 12 gauge (blue), and 14 gauge (red, green, yellow, brown).

Wiring Steps:

1. Prepare Wires: Carefully strip the insulation from the bare wires at the ROJ end to expose the copper conductors.
2. Identify Functions: Using the provided wiring diagrams, identify the function of each colored wire.
3. Connect to Trailer: Connect each wire from the Conntek cable to the corresponding wire in your trailer's electrical system or junction box. Ensure connections are secure using appropriate connectors (e.g., crimp connectors, wire nuts) and are properly insulated with electrical tape or heat shrink tubing.
4. Secure Cable: Route and secure the cable to prevent chafing or damage during vehicle operation.

Operating Instructions

Once the Conntek 7-Way Plug to ROJ cable is correctly installed and wired to your trailer, operation is straightforward:

1. Connect Plug: Insert the 7-way plug firmly into the corresponding 7-way receptacle on your towing vehicle. Ensure the connection is fully seated and secure.
2. Verify Lights: Before driving, test all trailer lights (tail lights, brake lights, turn signals) and ensure they function correctly in conjunction with the towing vehicle's controls.
3. Verify Brakes: If your trailer has electric brakes, verify their operation using your vehicle's brake controller.

Maintenance

Regular maintenance helps ensure the longevity and reliable performance of your Conntek 7-Way Plug to ROJ cable:

• Inspect Connections: Periodically check the 7-way plug and all wired connections at the ROJ end for signs of corrosion, wear, or damage. Clean any corrosion with a wire brush and electrical contact cleaner.
• Cable Condition: Inspect the cable jacket for cracks, cuts, or abrasions. Replace the cable if significant damage is observed.
• Lubrication: Apply a small amount of dielectric grease to the pins of the 7-way plug to protect against moisture and corrosion.
• Storage: When not in use, store the cable in a clean, dry place, away from extreme temperatures and direct sunlight.

Troubleshooting

If you experience issues with your trailer's electrical functions after installing the Conntek 7-Way Plug to ROJ cable, consider the following troubleshooting steps:

• Wiring Color Discrepancies: While this cable uses standard RV color coding, some trailer manufacturers or previous wiring jobs may not adhere strictly to these standards. It is highly recommended to verify the function of each wire using a multimeter before making final connections. Test for continuity and voltage at each wire to ensure it matches the intended function (e.g., brake light, turn signal, ground).
• No Power/Function:
  • Ensure the 7-way plug is fully seated in the vehicle's receptacle.
  • Check the vehicle's fuses related to trailer wiring.
  • Inspect all connections at the ROJ end for loose wires or poor insulation.
• Intermittent Function: This often indicates a loose or corroded connection. Re-check all wiring points and the plug connection.
• Brake Issues: If electric brakes are not functioning, verify the brake controller settings in your vehicle and ensure the blue brake wire is correctly connected and receiving power.

Specifications

Warranty and Support

This Conntek product comes with a 1-Year Limited Warranty. For warranty claims or technical support, please contact Conntek customer service. Keep your purchase receipt as proof of purchase for warranty purposes.

For additional assistance or specific wiring questions not covered in this manual, it is recommended to consult with a qualified automotive electrician or refer to detailed RV wiring guides.