To find the relevant fuses, you need to consult your owner's manual. It will have a fuse box diagram showing the location of fuse boxes (there's usually one under the hood and another inside the vehicle, often in the dash or under it) and what each fuse controls. Look for fuses related to:
* Power locks: This is the most likely label.
* Body control module (BCM): The BCM often controls many electrical functions, including the locks. A problem with the BCM itself might manifest as lock problems, but you'd need diagnostic tools to check that.
* Power windows: Sometimes these share a fuse with the power locks.
Without the owner's manual, I cannot tell you exactly where the relevant fuses are located. The location and layout vary slightly between model years and trim levels. Finding a free digital version of your owner's manual online through a Ford search or a site like RepairPal might be helpful.
