P2B30Fan 1 Stuck On
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2B30 states that radiator fan 1 does not follow the command to stop or to change speed, as judged from its speed feedback or module diagnosis. The classic electrical background is a welded relay contact or a fan module that keeps driving the motor. Audi uses the code on the 2022–2024 e-tron GT and RS e-tron GT, stored in thermal management J1024 (address 00C5) as symptom 59328: road dirt and stones entering through the wheel housing liner grille block the fan mechanically, so commanded and reported operation no longer match. Owners notice weak cabin heating or cooling, less drive power or a battery that will not charge fully. Audi fits revised fans, shrouds, liners and protective caps. CARB requires fan outputs to respond correctly to commands. Fan 2 has P2B32, the stuck-off case of fan 1 is P2B2F.
- What you may notice
- Fan keeps running after switch-off, draining the 12 V battery
- Weak cabin heating or cooling on electric vehicles
- Grinding noise from the front wheel area
- Likely causes
- LikelyRoad debris jamming the fan (Audi e-tron GT)
- PossibleFan relay contacts welded closed
- PossibleFan control module ignoring the off command
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €30 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.