Although I haven't ever worked on an Electrolock switch unit before, a little web searching came across these links to possibly relevant bits of info (a bunch of reading) that may help you fix your short.
Grab a cup of coffee, there is a good bit of reading in here.
Dan
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)