P2C27: The fuel injector unit B power supply detection gives a lower signal than normal
The fuel injector unit B power supply detection gives a lower signal than normal. It is usually the part, its wiring or a connector with poor contact.
| Code | P2C27 |
|---|---|
| System | Engine and transmission |
| Group | P2Cxx, Engine, emissions and electrification |
| Type | Generic: it means the same on every make |
How to read and clear P2C27 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 P2C27 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
- P2C23 The exhaust heat exchanger exhaust bypass valve A position sensor gives
- P2C24 The exhaust heat exchanger exhaust bypass valve A position sensor gives a lower
- P2C25 The exhaust heat exchanger exhaust bypass valve A position sensor gives a
- P2C26 The fuel injector unit B power supply detection has an electrical fault
- P2C28 The fuel injector unit B power supply detection gives a higher signal than
- P2C29 The turbo B discharge valve has got stuck
- 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
What does code P2C27 mean?
The fuel injector unit B power supply detection gives a lower signal than normal. It is usually the part, its wiring or a connector with poor contact.
How do you clear P2C27?
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, P2C27 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.
