Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Dasbecan 56327 4-Way Trailer Hitch Wiring Harness Kit. Please read this manual thoroughly before installation and use to ensure proper function and safety. This kit is designed for specific Ford Transit and E-Transit models to provide a standard 4-way flat connector for trailer lighting.
Product Overview
The Dasbecan 56327 wiring harness is a plug-and-play solution that adapts your vehicle's taillight system to provide a standard 4-way flat trailer connector. It includes a taillight converter to manage separate brake and turn signals, ensuring proper trailer light synchronization.

Image: Overview of the Dasbecan 56327 Trailer Hitch Wiring Harness Kit components.
What's in the Box
- 1x Trailer Wiring Harness
Key Features
- Manufacturer Part Number: 56327
- 4 Pin Connector: Provides a standard 4-way flat for trailer plugging and towing.
- Easy to Install: Simple plug-and-play design eliminates the need for cutting or splicing.
- Dust Cover: Included to keep the connector clean when not in use, extending service life.
- Taillight Converter: Adapts vehicle's separate brake and turn signals to combination brake and tail lights for the trailer.
Compatibility
This wiring harness kit is compatible with the following Ford Transit and E-Transit models:
- 2015-2024 Ford Transit-150
- 2015-2024 Ford Transit-250
- 2015-2024 Ford Transit-350 (Single rear wheels)
- 2022-2024 Ford E-Transit (Excluding dual rear wheels)

Image: Ford Transit van, indicating compatible vehicle models.
Safety Information
- Always disconnect the vehicle's battery before beginning any electrical installation.
- Ensure all connections are secure and properly insulated to prevent short circuits.
- Route wiring away from hot exhaust components, moving parts, and sharp edges.
- Test all trailer lights thoroughly before towing.
Setup and Installation
The Dasbecan 56327 wiring harness is designed for a direct plug-and-play installation into your vehicle's existing taillight wiring system. No cutting or splicing of wires is typically required.
Installation Steps:
- Locate Vehicle Taillight Wiring: Access the taillight wiring on your Ford Transit or E-Transit. This usually involves removing taillight assemblies or accessing wiring behind interior panels.
- Disconnect Existing Connectors: Unplug the factory wiring harness connectors from the vehicle's taillight assemblies.
- Connect Harness: Plug the vehicle-specific connectors of the Dasbecan wiring harness inline with the factory wiring. Ensure a secure connection.
- Mount Taillight Converter: Securely mount the taillight converter module in a dry, protected location using the provided hardware or zip ties.
- Route 4-Way Flat Connector: Route the 4-way flat connector to the rear of the vehicle, near the hitch receiver. Ensure it is secured and protected from road debris and heat.
- Connect Power Wire (if applicable): If your kit includes a separate power wire, connect it directly to the vehicle's battery following the provided instructions, ensuring an inline fuse is installed.
- Test Connections: Reconnect the vehicle's battery and test all trailer light functions (running lights, brake lights, left turn, right turn) with a test light or by connecting a trailer.

Image: Direct plug-in installation into existing wiring and a vehicle towing a trailer.
Video: Installation guide for the 2015-2024 Ford Transit 150 250 350 Trailer Wiring Harness. This video demonstrates the installation process for compatible Ford Transit models.
Operating Instructions
Once installed, the 4-way flat connector provides the necessary electrical signals for standard trailer lighting functions. Connect your trailer's 4-way plug to the vehicle's 4-way flat connector.
4-Pin Trailer Connector Functions:

Image: Standard 4-pin flat trailer connector wiring diagram.
- Green Wire: Right Turn Signal
- Yellow Wire: Left Turn Signal
- Brown Wire: Tail Lights and Marker Signal
- White Wire: Ground
Ensure the trailer's wiring matches these functions for correct operation.
Maintenance
- Keep Connector Clean: Use the provided dust cover to protect the 4-way flat connector from dirt, moisture, and corrosion when not in use.
- Inspect Connections: Periodically check all wiring connections for tightness and signs of wear or damage.
- Corrosion Prevention: Apply dielectric grease to the electrical contacts of the 4-way connector to prevent corrosion, especially in harsh weather conditions.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No trailer lights | Loose connection, blown fuse, faulty trailer wiring | Check all connections, inspect vehicle and harness fuses, test trailer wiring independently. |
| Incorrect light function (e.g., brake lights activate turn signals) | Improper wiring, faulty taillight converter | Verify harness connections are correct, ensure the taillight converter is functioning. |
| Intermittent light function | Corroded contacts, loose ground wire | Clean and apply dielectric grease to contacts, check ground wire for secure connection. |
Specifications
| Attribute | Detail |
|---|---|
| Model Number | 56327 |
| Connector Type | 4-pin Trailer Plug |
| Material | ABS Plastic |
| Wire Diameter | 1.02 Millimeters |
| Item Weight | 1.7 pounds |
| Package Dimensions | 7.1 x 6.25 x 3.1 inches |
Warranty and Support
For warranty information or technical support, please refer to the manufacturer's official website or contact their customer service directly. Keep your purchase receipt for any warranty claims.