Tests Trailer Circuits from the Tow Vehicle Quickly and Easily on Most Light and Medium-Duty Trucks and RVs.

Features and Benefits:

• Plugs into the vehicle side socket
• LEDs indicate that each circuit is working
• Eliminates guesswork
• “Winged” grip for easy removal from electrical connector

For testing Integrated Brake Controllers, see the IPA_® #9107A as this tool may not work for testing electric brake circuits on vehicles with Advanced or Integrated Brake Controllers.