180 LOADpro Test Leads load the circuit to see if currentcan flow. LOADpro finds these problems quicker: High Corrosive Resistance Shorts to Ground Open Circuits By loading the circuit, LOADpro makes a voltage droptest ?on the fly?. Just press the switch ? the test results can not lie. Use LOADpro w/your DMM and follow our test method - youwill find wiring faults quicker. LOADpro Test Leads feature SteadyPin Probe Tips, whichallows the probe to sit firmly on amale ECM or connector pin. LOADpro are OEM approved ? finds corroded circuitsFast!