This (Sort of) happened to me.. I pulled into a propane station, killed the salesman switch (USE/STORE) to make sure all the DSI stuff was off.. Tanked up, pulled away and pressed the USE end to re-connect and return to service.... NOTHING HAPPENED, not even the CLUNK of the solenoid.
Got the wiring diagram for my Intelletec battery control system and with aid of my wife confirmed that there was no power to the solenid when switch pressed to USE, ok on STORE but not on USE.
(STORE (off) Clunked).
Reomved power from switch (Pull a 5 amp fuse) and poerate like 50 times..
Restore power and it's worked ever since.
So far.
NOTE: IF this works for you.. I suggest lotto tickets cause luck is with you.
(I've tried this type of fix many times, worked twice)