P00D4: The lambda sensor heater control (bank 2
The lambda sensor heater control (bank 2, sensor 2) gives readings outside the normal range. It is usually the sensor itself, its wiring or a real fault in what it measures.
| Code | P00D4 |
|---|---|
| System | Engine and transmission |
| Group | P00xx, Air, fuel and emissions |
| Type | Generic: it means the same on every make |
How to read and clear P00D4 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 P00D4 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
- P00D0 The barometric pressure turbocharger boost sensor B gives readings that do not
- P00D1 The lambda sensor heater control (bank 1
- P00D2 The lambda sensor heater control (bank 1
- P00D3 The lambda sensor heater control (bank 2
- P00D7 The turbo A discharge valve temperature is above normal
- P00D8 The turbo B discharge valve temperature is above normal
- P00D9 The ambience air temperature sensor circuit B is not working properly
- P00DA The ambience air temperature sensor circuit B gives readings outside the normal
- P0010 Camshaft A actuator control: open circuit (bank 1)
- P0011 Camshaft A timing over-advanced (bank 1)
- P0012 Camshaft A timing over-retarded (bank 1)
- P0013 Camshaft B actuator control: open circuit (bank 1)
What does code P00D4 mean?
The lambda sensor heater control (bank 2, sensor 2) gives readings outside the normal range. It is usually the sensor itself, its wiring or a real fault in what it measures.
How do you clear P00D4?
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, P00D4 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.
