FLAPS???? Battery???
Buy this cheap Chinese bluetooth OBD reader:
https://www.amazon.com/gp/product/B00PJPHEBO
Put Torque on your phone. Then pay for Torque pro.
You can now get your own codes whenever, clear them, and see why they're there. You also know if you've put enough miles on to pass emissions after clearing the codes.
You also get fun little gauges for all sorts of things that your car doesn't tell you right now.