8
Step 6: Check the 30 amp circuit
breaker using a voltmeter:
• Place the positive lead on
the circuit breaker stud that
connects to the red junction
stud closest to the DC/DC
converter on the plate.
• Place the negative lead on the
negative post of the battery.
• If there is a battery voltage
reading, proceed to the next
step.
• If no voltage is shown, reset the
circuit breaker.
• If there is still no voltage, check
wiring for defects.
• If no defects are found, replace
the circuit breaker.
Step 7: On the front of the trailer,
remove the hardware holding the
cover assembly to the nosebox
base.
• Place the voltmeter positive
lead where the orange wire is
connected.
• Place the negative lead where
the white wire is connected.
• Check the battery voltage
reading.
• If there is a battery voltage
reading, replace the faceplate
assembly.
• If there is no voltage reading,
inspect the wiring for defects
and repair any issues.
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