It most likely has something to do with whats on that circuit. If you don't have experience with working on the cars electrical system here is a link to find a good shop near you that can diagnose the issue.
https://repairpal.com/repair-shops
Alex
RepairPal Certified shops can diagnose and repair your 2007 Chevrolet Express 1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.