7-Way Flat Pin Car End T ester w/LED Display

The 7-Way Flat Pin Car End Tester with LED Display is an essential diagnostic tool for any mechanic, trailer technician, or vehicle owner who works with towing systems. This tool is particularly useful for troubleshooting newly installed trailer harnesses, diagnosing intermittent lighting faults, or verifying proper wiring before towing season.

This compact tester functions by applying a low-voltage test signal to each of the seven pins in a standard 7-pin connector, displaying results via an LED indicator. Bright illumination confirms a good circuit, while no light or dim output signals a problem pin. Its design allows for easy identification of open circuits, shorts, or faulty connections without needing a full multimeter or expensive diagnostic equipment.

Ideal for professionals installing aftermarket towing packages, this tester is also accessible to DIY enthusiasts. Its compact size (3.85 × 1.95 × 8.75 inches) and lightweight nature (0.28 lbs) make it easy to carry in a toolbox or vehicle glove compartment, ensuring that you are always prepared for any trailer wiring issues.