Vehicle Super Probe
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5.13 Testing Trailer Lights and Connections
Figure 16
1) 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 may check the function and orientation of the connector and trailer lights.
(Figure 16)
2) If the circuit breaker tripped, that contact is likely a ground. Reset the circuit
breaker by letting it cool down for 1 minute.
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