Probably best to look at the wiring - maybe a connection came off, in which case, easy fix with a soldering iron, so long as you can see where the wire came from. If not, the wiring diagram can be had from the Fender web site, here:-
[url="http://www.fender.com/support/diagrams/pdf_temp1/basses/0136100A/SD0136100APg2.pdf"]http://www.fender.com/support/diagrams/pdf...0136100APg2.pdf[/url]