P2EAAActive Radiator Air Flow Control Module A Control Circuit Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- The active radiator air flow system meters cooling air with motor-driven flaps between bumper opening and radiator; J2012 keeps its control module apart from the grille shutter modules (P05C0, U0284). Hyundai and Kia's patent US11225900 shows such a system with two flap zones, each moved by its own actuator according to vehicle speed, outside and coolant temperature and refrigerant pressure. P2EAA means the control circuit of module A responds but does not behave as expected, for instance a drive signal outside its plausible range. No manufacturer documents P2EAA publicly. GM's smart shutter actuators show the comparable setup: they talk to the engine module over LIN, which only judges them with a supply between 11 and 32 V. A fault mostly costs fuel and warm-up speed.
- What you may notice
- Check engine lamp on, where the maker assigns a MIL
- Flaps stay in one position
- Slower warm-up or slightly higher fuel consumption
- Likely causes
- LikelyCorroded or loose connector in the exposed front-end area
- PossibleSupply or ground of the module outside its range
- PossibleInternal fault in control module A
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €30 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.