I have a 1997 Discovery 1 and over the past month Ive had the turn signal, brake light, and marker light fuses blow and Im wondering if they all share a common ground that would need to be cleaned up. If its not that is there any other reason these fuses are starting to blow?

Thanks

 

Snag the Rave in the D1 tech section. It's the service manual and has really good electrical diagram section called the "Electrical Troubleshooting Manual - ETM". I know that sounds like a quick answer but there are many grounds throughout the truck.