Mastertech Kit Components
Page 3-10 Mastertech 3100 Operator’s Manual
DIAGNOSTIC TEST LEADS
The Diagnostic Test Leads provide a convenient means of signal input measurement.
The Diagnostic Test Leads are used for signal input to the DVM function which passively monitors voltage
signals from the ECM/ECU, sensors, actuators, harness and connectors.
The Diagnostic Test Leads are also used for signal input to the oscilloscope, as well as timing (frequency,
duty cycle, pulse width) measurements on vehicle signals.
NOTE
The Diagnostic Test Lead set provided in the Mastertech kit is only
intended for automotive type signal measurement. It is not a lab-quality
Digital Volt Ohm Meter (DVOM) or oscilloscope.
FIGURE 3-7. Diagnostic Test Lead Set and Test Lead Adapter
Diagnostic
Test Lead
Tips
Diagnostic
Test Lead
Diagnostic
Test Lead
Adapter
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