P2444 code meaning
AIR System Pump Stuck On (Bank 1)
Powertrain system Generic code P24xx codes Check engine light
What P2444 means
P2444 means the secondary air pump keeps blowing after the engine computer has switched it off. GM checks this in phase 3 of its sequence, with the pump commanded off and the valve closed: if duct pressure stays higher than predicted – by more than 1.5 kPa within 5 s on the 2005–2006 3.8L V6, by more than 4.2 kPa within 10 s for the 2006 V8s in Corvette and CTS-V – the code sets as Type A and lights the MIL on the first trip; the 2018 tables keep the Type A rating. The usual culprit is a welded or sticking pump relay or a driver circuit shorted to power, less often a pump with internal damage. A pump that never stops can overheat and drain the battery. P2445 is the stuck-off fault, P2446 the bank 2 code.
P2444 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyEasy, DIY possible
- Typical labor0.3 to 2 hours
- Clears after repairAfter a drive cycle
Symptoms of P2444
- Check engine lamp on the first trip
- Pump audibly running long after start or with engine off
- Discharged battery
Common causes of P2444
- Most likelyPump relay contacts welded or sticking
- PossibleRelay control circuit shorted to power
- Less likelyOutput driver in the engine computer faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Secondary air pumpSecondary air pump relay
What each part of P2444 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 4 | Area: auxiliary emission controls (catalytic converter, EGR, EVAP). |
| 44 | The exact fault in that area. |
What to do next
- Note P2444 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 P2444
What does P2444 mean?
P2444 means "AIR System Pump Stuck On (Bank 1)". P2444 means the secondary air pump keeps blowing after the engine computer has switched it off. It is a generic code, so it means the same on every make.
Is it safe to drive with P2444?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2444 fail an emissions test?
Yes, it can. P2444 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 P2444 to fix?
Difficulty: easy. A typical repair takes 0.3 to 2 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2444 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.