Tests 4-pin and 5-pin trailer wiring connections quickly and efficiently. Designed for easy, single-person operation to verify proper light and brake functions on trailers. Ideal for automotive technicians and DIY enthusiasts.
Tests 4-pin and 5-pin trailer wiring connections quickly and efficiently. Designed for easy, single-person operation to verify proper light and brake functions on trailers. Ideal for automotive technicians and DIY enthusiasts.
