Shenzhen IDUTEX Tech Co., Ltd
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If the circuit breaker tripped, the tool has been overloaded. This
could happen for the following reasons:
Ɣ
The contact you are probing is a direct ground or negative voltage.
Ɣ
The component you are testing is short-circuited.
Ɣ
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 Reboot the device.
3.5 Testing Trailer Lights and Connections
While the tool in DC Voltage mode, clip the auxiliary ground lead to the
trailer ground, probe the contacts at the jack and then apply voltage to the
probe tip. This lets you check the function and orientation of the connector
and trailer lights. (Figure 14)
Figure 14