ECM replacemnt, what to do afterwards

So I’ve ordered a “plug and play” ECM my mechanic told me I needed to take it to the dealer but the dodge dealership around here is terrible and I’m going to an automotive school. I called the dealer to find the part number and it’s been shipped from a good website I got it programmed to my VIN and it’s the correct ECM but I want to replace it myself for the learning experience and for the money ha, I just want to know how important it is to use a scanner afterwards to check for any codes that didn’t connect and what codes might pop up. Could I do this in my driveway or should I take it to my mechanics class and get my teacher to help (using the scanner at school) This Chrysler 200 is a 2013 and I just want to say I’m still able to drive my car with a faulty ecm I’m not sure how but that’s what makes me think it’s not completely failed yet but it could fail on me at any moment which makes me nervous.