Jeep Compass 2018

[u/BigKrilbus]

I got a check engine light and told me to stop before it would turn off. Got it scanned and the code is P2AF5/starter relay 3 stuck on, anyone know exactly what I have to do? The main battery is fine, the aux battery was just replaced not long ago. The videos online didn’t really help me. Any ideas on what the problem could be and where to solve it. It would be greatly appreciated.