User Manual

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If the LCD readings are abnormal, there is a problem with this sensor.
3.4 Activating Components in Your Hand
While the tool is in DC Voltage mode, by using the probe tip in connection with the
auxiliary ground lead, components can be activated right in your hand, thereby testing
their functions.
Connect the auxiliary ground lead to the negative terminal or ground side of the
component being tested. Then contact the probe tip to the positive terminal of the
component, the green LED should light, indicating continuity through the component.
While keeping an eye on the green LED, quickly press and release the power switch
forward. If the green LED went out and the red LED came on, you may proceed with
further activation. Rock the power switch forward and hold it down to provide power to
your component. With the power switch rocked forward, power will flow from the
positive lead on the battery into the probe tip, through the tip into the component ’ s
positive terminal, into the component and out of the component, through the auxiliary
ground lead and back into the tool, and back to the vehicle battery ’ s ground.
If the green LED went off at that instant or if the circuit breaker tripped, the tool has been
overloaded. This could happen for the following reasons:
 The contact you are probing is a direct ground or negative voltage.
 The component you are testing is short-circuited.

The component is a very high current component (i.e., starter motor).
If the circuit breaker is tripped, reset it by waiting for it to cool down (15 sec.) and then
depressing the reset button.