P2C2E: The turbo B discharge valve power supply voltage is below normal
The turbo B discharge valve power supply voltage is below normal. It usually comes from the battery, the alternator or a poor connection.
| Code | P2C2E |
|---|---|
| System | Engine and transmission |
| Group | P2Cxx, Engine, emissions and electrification |
| Type | Generic: it means the same on every make |
How to read and clear P2C2E with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P2C2E with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- P2C2A The turbo B discharge valve position sensor has a broken or disconnected wire
- P2C2B The turbo B discharge valve position sensor gives a lower signal than normal
- P2C2C The turbo B discharge valve position sensor gives a higher signal than normal
- P2C2D The turbo B discharge valve position needs its learning procedure
- P2C30 The ignition coil primary circuit fuse A is not working properly
- P2C31 The ignition coil primary circuit fuse B is not working properly
- P2C32 The sump pressure sensor B has an electrical fault
- P2C33 The sump pressure sensor B gives readings outside the normal range
What does code P2C2E mean?
The turbo B discharge valve power supply voltage is below normal. It usually comes from the battery, the alternator or a poor connection.
How do you clear P2C2E?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P2C2E comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
