This portable device is designed to diagnose electrical issues in trailer lighting systems. Functioning independently of a vehicle, it supplies power to the trailer’s electrical circuits, allowing technicians to test lighting functions such as turn signals, brake lights, and running lights. This testing method provides a straightforward way to identify faults within the trailer’s wiring or lighting components without requiring a connection to a tow vehicle.
The use of such a tool offers several advantages, including simplified troubleshooting and reduced diagnostic time. Its self-contained nature makes it particularly useful in situations where a tow vehicle is unavailable or when diagnosing issues prior to connecting the trailer. Historically, trailer light testing required the use of a tow vehicle, which could be inconvenient and time-consuming. This type of device represents a significant advancement in trailer maintenance and repair, streamlining the process and enhancing accuracy.
