My power door locks stopped working some time ago. They work with the remote but not on either door panel. After studying the schematics i i started testing. Switches good. Gem module putting 12v constant to switches but it's not reaching them both. Trace wiring to passenger side rocker panel and found where the power wire splits off into 2 and what do you know. Completely corroded. Resoldered and bam, working door lock switches. It looks like at some point water leaked down the a-pillar and caused the oxidation. Real cheesy connector from Ford also. Hope this helps someone.