Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P2440Secondary Air Injection System Switching Valve Stuck Open, Bank 1
P2440SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPEN, BANK 1
P2440Secondary Air Injection System Switching Valve Stuck Open Bank 1
Manufacturer communications
41Original wording in English
AUDI
Summary of all Vin-4-Pin topics for June Check engine light after charging - P0E5E00 Rattle noise from sound generator Vehicle sound malfunction warning Oil leak from oil filter drain off valve Secondary air codes P244000 or P049100 P04F000: EVAP system high pressure purge line performance
AUDI
This bulletin contains a software update for when DTC P244000 is stored in the ECM.
VOLKSWAGEN
Customer states MIL-on with P0496 Customer states MIL-on with P2440 Customer states MIL-on with U0284 Customer states MIL-on with P02CC, P02CE, P02D0, P02D2, P02D4, and P02D6 P02D7 Customer states oil leak from the engine Customer states MIL-on with P0442 Customer states MIL-on, HPFP mounting bolts loose/broken No crank, no star…
VOLKSWAGEN
Customer states MIL-on with P0496 Customer states MIL-on with P2440 Customer states MIL-on with U0284 Customer states MIL-on with P02CC, P02CE, P02D0, P02D2, P02D4, and P02D6 P02D7 Customer states oil leak from the engine Customer states MIL-on with P0442 Customer states MIL-on, HPFP mounting bolts loose/broken No crank, no star…
Check vehicle applicability
148A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | A3 ↗ | 2026 |
| Audi | A3 ↗ | 2020 |
| Audi | A3 ↗ | 2019 |
| Audi | A5 ↗ | 2026 |
| Audi | A5 CABRIOLET ↗ | 2012 |
| Audi | A5 CABRIOLET ↗ | 2011 |
| Audi | A6 ↗ | 2015 |
| Audi | A6 ↗ | 2014 |
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.