Bobbymouton1

I have a 2017 LT 2500 Diesel own non blinker, non folding basic mirrors. I bought tow mirrors with blinkers, heated, manual folding,amber lights and the led lights that shine towards rear of truck. I figured it couldn't be that hard to figure it out.......wrong, I'm more confused and now I have a check engine light on. I did buy cheaper made mirrors from eBay. Please help. All I care about is the blinkers and backup lights