222 Trailer Wiring Buddy 7 Pin Flat

Our Price $41.66

Test round 7 Pin Connectors with flat pins using Trailing Wiring Buddy.


  • Each vehicle signal emits a unique tone
  • Electric brake control signal illuminates red LED
  • A loud beep can be heard over shop noise
  • Time Saver! Just apply brakes, right/left turn signals, running lights, engage reverse and 12-volt charging voltage
  • Greatly reduces the time spent verifying vehicle trailer wiring
  • Very simple and easy to use - Saves Time!

Lighting Circuits Tested:

  • Left Turn Signal
  • Right Turn Signal
  • Brake 
  • Running Lights
  • Reverse
  • 12 Volt Charging
  • Electric Brake Control