Purkeys SELECT - Testing the DC;DC Converter

21
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SELECT DIAGNOSTIC GUIDE
TESTING THE DC/DC CONVERTER
See Figure 21 to see the LED lights on the DC/DC converter. A
rapid flashing red LED on the converter is normal if the trailer is
disconnected from a running truck. It will continue to flash for a
short period of time. A rapid flashing red LED is only a fault if the
trailer is connected to a running truck.
Figure 21
LED STATUS CONDITION ACTION NEEDED REFERENCE
Solid Green
DC/DC
converter is
on.
Ensure circuit
protection on output
side is in working
order.
Ref #13
Rapid
Flashing
Red
DC/DC
converter has
a fault.
Determine the fault. Ref #12 & #13
No Light No voltage. Determine the fault. Ref #12 & #13