Diode Installation Instructions for a Dinghy with Separate Tail Light Wiring

Before you begin the installation ensure that your vehicle being towed has a separate system, with turn signals on a separate circuit from brake lights, often carried behind a separate lens.

Diode Wiring Kit


There are two acceptable ways in which a dinghy can be wired in this scenario. Below is an outline of each procedure and the end result

Option 1

Option 2

Procedure for Option 1: Wiring the Dinghy like a Combined System

To Begin: Mounting, grounding and running the wire to the dinghy tail lights

Diagram of Left-Turn Diode Connection


Locate the dinghy's factory running light and brake signal circuits and install a diode in-line with each. This process is outlined below. The diode installation is the same for each circuit

Diagram of Running Light Jumper Wire
Inserting Jumper Wire Into a Spade Connector Twisting Together Jumper Wire and Running Light Circuit from Tow Harness

Wirig Diagram for Wiring a Dinghy with a Combined Lighting System

Procedure for Option 2: Wiring the Dinghy as a Separate System

To Begin: Mounting and Grounding

2-Wire to 3-Wire Converter for Tow Bar Wiring

Converter Installation

Diode Installed Inline with Factory Left Turn Signal

Diode Installation

Locate the dinghy's factory running light, brake and turn signal circuits and install a diode in-line with each. This process is outlined below. The diode installation is the same for each circuit.

Diagram for a Running Light Jumper Wire Diagram for a Brake Light Jumper Wire Wiring Diagram for a Tow Vehicle with a Separate Lighting System

Tow Bar Wiring Extension Cord for Towing a Vehicle

Connecting the Vehicles

A wiring extension cord must be run from the tow vehicle to the dinghy to connect their two wiring systems.

Note: Extension cords for towing a vehicle are unique. Unlike a standard wiring adapter, both ends of the extension cord will have male, trailer end connectors. Ensure the extension cord you purchase for your setup has the appropriate trailer connectors on each end.

To see available extension cords and connectors click here

Updated by: Raymond P.

Last updated: 6/29/18



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