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Small black plastic box with colour-coded wires emerging from each end

CARROFIX

CARROFIX 2-Wire to 3-Wire Taillight Converter 2.1 A

SKU CH-ZABW-T28J7

Converts a towing vehicle's 2-wire lighting system to a 3-wire setup for towed vehicles at 2.1 A per circuit

  • FeaturesLED Compatible
  • FitmentUniversal
  • Converts 2-wire tow vehicle to 3-wire towed system
  • Handles 2.1 A per circuit for reliable LED operation
  • SMT circuitry delivers solid-state performance without heavy flasher
  • Colour-coded wires simplify direct splice installation
  • Universal fitment works with import and domestic vehicles

Vehicle Lighting Compatibility

This CARROFIX converter adapts a towing vehicle's 2-wire tail light system for a towed vehicle that uses separate turn and stop lights on a 3-wire system. It is designed for import and domestic vehicles where the lighting architectures differ between the tow and towed units. The unit handles 2.1 A per circuit using solid-state SMT circuitry.

Wiring Verification Required

Before ordering, confirm the towing vehicle uses a standard 2-wire combined turn/brake light circuit and that the towed vehicle has independent amber turn signals separate from the brake lights. The converter will not function with low-side switch or multiplex wiring systems. A clean chassis ground on the towing vehicle is also essential for operation.

Installation and Constraints

The device splices directly into the towing vehicle's tail light wiring at the rear using colour-coded leads: yellow for left turn/brake, green for right turn/brake, and white for ground. No heavy-duty flasher or direct battery connection is needed. It cannot be reversed to convert a 3-wire tow vehicle down to a 2-wire towed vehicle, and the unit must not be installed backwards.

Highlights

  • Converts 2-wire tow vehicle to 3-wire towed system
  • Handles 2.1 A per circuit for reliable LED operation
  • SMT circuitry delivers solid-state performance without heavy flasher
  • Colour-coded wires simplify direct splice installation
  • Universal fitment works with import and domestic vehicles

Specifications

BrandCARROFIX
FeaturesLED Compatible
FitmentUniversal

Questions about this item

What comes in the box and do I need any extra parts to install the CARROFIX 2-Wire to 3-Wire Taillight Converter?

The converter unit with colour-coded leads is supplied. You will need basic splicing tools such as wire strippers, crimp connectors or solder, and electrical tape to join the leads to the vehicle wiring.

The specs list 2.1 A per circuit — how do I know if that capacity suits my trailer lighting?

Each circuit handles up to 2.1 A, which covers typical LED or incandescent trailer tail, brake and turn lamps. Add the amp draw of all lamps on a single circuit; if the total stays below 2.1 A the converter is adequate.

Once spliced into the tow vehicle, what does the 2.1 A rating actually mean for light operation?

It means each output circuit can continuously supply up to 2.1 A to the towed vehicle's separate turn and stop lamps without overheating, ensuring reliable brightness and flash rate.

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