No power to left front turn signal
I have a 2018 Thor Windsport 29M. We didn't realize when we purchased it that there issues regarding the left turn signal. The left turn signal had never worked (owned now for 3 months). We purchased a new lamp and after trying to figure out how to change it, it still doesn't work. When testing power, we also found out that the left side camera wasn't working, either. Where do we start to figure out where the issue is?