Done traveling for the and am catching up here. As another test that I tried that I read on a old thread was to try a jumper wire across the high limit switch. When I do that I get a smart which indicate electricity up to that point. Wouldn't that point be beyond the module and the module would be ok?
I have not studied Herks schematic yet.
Terry and Carol
Daytona Beach, FL
2013 F150 XLT, SuperCab, Ecoboost
2010 Rockwood 8285WS
2014 - 57; 2015 - 91; 2016 - 171