P220C: The NOx sensor power supply voltage (bank 2, sensor 1) has an electrical fault
The NOx sensor power supply voltage (bank 2, sensor 1) has an electrical fault. It may be the part itself, its connector or the wiring.
| Code | P220C |
|---|---|
| System | Engine and transmission |
| Group | P22xx, NOx sensors, oxygen sensors and emissions |
| Type | Generic: it means the same on every make |
How to read and clear P220C 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 P220C 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
- P2208 The NOx sensor heater detection (bank 1) has an electrical fault
- P2209 The NOx sensor heater detection (bank 1) gives readings outside the normal range
- P220A The NOx sensor power supply voltage (bank 1, sensor 1) has an electrical fault
- P220B The NOx sensor power supply voltage (bank 1, sensor 2) has an electrical fault
- P220D The NOx sensor power supply voltage (bank 2, sensor 2) has an electrical fault
- P220E The NOx sensor heater control (bank 1
- P220F The NOx sensor heater control (bank 1
- P2210 The NOx sensor heater detection (bank 1) gives a lower signal than normal
- P2200 NOx sensor circuit fault (bank 1)
- P2201 NOx sensor circuit range or performance problem (bank 1)
- P2227 Barometric pressure sensor A range or performance problem
- P2228 Barometric pressure sensor A circuit low
What does code P220C mean?
The NOx sensor power supply voltage (bank 2, sensor 1) has an electrical fault. It may be the part itself, its connector or the wiring.
How do you clear P220C?
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, P220C 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.
