P2B30 code meaning
Fan 1 Stuck On
Powertrain system Generic code P2Bxx codes Check engine light
What P2B30 means
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.
P2B30 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2B30
- 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
Common causes of P2B30
- Most likelyRoad debris jamming the fan (Audi e-tron GT)
- PossibleFan relay contacts welded closed
- PossibleFan control module ignoring the off command
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Cooling fan 1Fan relay 1ECM
What each part of P2B30 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| B | Area: hybrid propulsion. |
| 30 | The exact fault in that area. |
What to do next
- Note P2B30 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2B30
What does P2B30 mean?
P2B30 means "Fan 1 Stuck On". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with P2B30?
Drive gently and only to a workshop. With P2B30 the car can go into limp mode (reduced power) to protect itself.
Will P2B30 fail an emissions test?
Yes, it can. P2B30 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2B30 to fix?
Difficulty: medium. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will P2B30 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.