User Manual
12
3.7 Activating Components w/Ground
While the tool in DC Voltage mode, contact the probe tip to the negative terminal of the
component, the red LED should light. While observing the red LED, quickly depress
and release the power switch rearward. If the red LED went out and the green LED
came on, you may proceed with further activation. 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 positive 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.