The FF310 – FaultFinder™ is a specially designed tool for tracking and tracing short and open circuits, broken wires and current leaks on any electrical circuit with voltages from 6 to 42 Volt DC, and is used by technicians worldwide in an ample range of equipment such as automobiles, truck trailers, tractors, farming equipment, boats, forklifts, motorcycles, all-terrain and recreational vehicles, etc.
The 42V ready™ FF310’s wide working voltage range, automatic short/open detection, adjustable sensitivity levels and flexible antenna probe enables the technician to troubleshoot a complete array of common electrical problems without having to untie wire harnesses or remove body panels.
This product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer, and Bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Proposition 65 Warning
FF310: damage precautions & warnings
The FF310 has two modes of operation:
- 1- Open circuits: When tracing open circuits the FF310T injects into the circuit (i.e. faulty wire) a current limited, pulsing 5-volt signal, which is the same or less than most vehicles’ normal operating voltage for electronic modules and systems.
- 2- Short circuits: When tracing short circuits, the FF310T pulses the power (current) already present in the circuit with a current limiting protection circuit.
The warning in the user’s manual regarding air bags is a precaution to avoid accidental deployment; the pulses used by the FF310 may affect the sensing circuitry and/or sensors of the airbag system.
The FF310 has been on the market for more than 12 years, and with tens of thousands of units in use, we have never received any report or complaint of the FF310 damaging any ECM, automotive module, system, or circuit.
One thing to keep in mind is that the FF310 is designed to be used in circuits up to a maximum of 42 VDC. Consequently, it is internally protected by a surge arrestor which, for safety reasons, will cause an internal fuse to blow if connected to any voltage above the 42 VDC.