Voltage & Polarity Testing : While the tool is in DC Voltage mode, contact the probe tip to a POSITIVE circuit. If contact the probe tip to an OPEN circuit, neither of the LED will light.
Short Circuit Following :The circuit tester is suitable for diagnostic in all 2V to 24V DC vehicle electrical systems. It can check switches, relays and the on-off of diodes, fuses and circuits, which can help you reduce diagnostic time in automotive electrical systems. In most cases, short circuit or instant overload of component will lead to blown fuse or circuit breaker tripping.This probe tester can assist you tracing problem wires and locating breaking points.
Find The Bad Ground : Probe the suspected ground wire or contact with the probe tip. If the circuit breaker tripped, this circuit is more than likely a good ground.
Test Trailer Lamps And Connections : While the tool in DC Voltage mode, clip the auxiliary ground lead to the trailer ground , probe the contacts at the jack and then apply voltage to the probe tip. This lets you check the function and orientation of the connector and trailer lights.
Continuity Test : While the tool is in Resistance mode, using the probe tip with chassis is ground or the auxiliary ground lead, continuity can be tested on wires and components attached or disconnected from the vehicle’s electrical system.
Activating Component : The component activation function is designed to generate activation signals to the tested components, such as activating lights, motors and other on-board electric equipments.