Help! P0EA7 code

My 2019 jeep Cherokee 2.0 turbo threw a P0EA7 code. I took it to the dealership and they determined it was the secondary water pump. I decided to fix it myself because it was pretty simple and I’m cheap lol. I replaced the pump and every worked like a charm. No more humming. However, I’m still getting the code even after topping off the coolant I lost from the install and bleeding it. Also, the miles are now blinking so there is a fault somewhere. Does anybody have any idea what this could be? Any info would be greatly appreciated.