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 up. While observing the red LED, quickly
press the power switch backward and release the button If the red LED went out and
the green LED came on, you may proceed with further activation. (Figure 14) 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:
(1) The contact you are probing is a direct positive voltage.
(2) The component you are testing is short-circuited.
(3) 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.)
Figure 13
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