220 TRAILER BUDDY 4/5 Pin - One Man Trailer Wiring Tester

Our Price $35.44


  • Tests 4 & 5 Pin Flat Connector Wiring
  • Each signal from the vehicle emits a unique tone
  • A loud beep can be heard over ship noise
  • One person makes a complete test in 30 seconds!
  • Just apply brakes, turn signals, running lights, and engage reverse.
  • Tester also emits a unique tone for any shorts in the wiring!
  • 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
  • Wiring Shorts