the little gray box says bosch and its relay 19 if its bad in side nothing happens
disconnect red/white wire and connect to red/black wire
with a jumper if bike will crank and run relay contacts are shot and it needs replaced
see
viewtopic.php?f=4&t=2085dave
the fowling things effect this relay ...kill switch in right handlebar ...sidestand switch ...neutral switch
... but most often of late the contacts in side of it just burn up.... and that cut off power to most every thing