Wisconsin Parts Database Instructions and Discussion Team/Group > INDIANA
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> New circuit tester debug plug -
New circuit tester debug plug -
Circuit Tester Debug Plug - NEW
4-way flat circuit tester tests power supply to trailer lights. Checks turn signals, tail lights and brake lights. Plugs into vehicle's towplug. Uses vehicle's power supply. No batteries required. 4-Way Flat Capable: Yes, Tests Turn Lights: Yes, Tests Brake Lights: Yes, Tests Tail Lights: Yes
