I have had the opportunity to deal with several vehicles that were actually struck by lightning. Usually, various modules are fried; however, there was one that just threw me for a complete loop. The vehicle ran, but no electrical circuits in the body worked (windows, door locks, radio, etc.) I expected to find a main power circuit problem, but much to my dismay, there wasn’t a single blown fuse. The problem turned out to be on the ground side of the vehicle. The main body ground circuits that ran along the rocker panel under the driver-side doorsill were completely melted away.