P205B: The AdBlue tank temperature sensor gives readings outside the normal range
The AdBlue tank temperature sensor gives readings outside the normal range. It is usually the sensor itself, its wiring or a real fault in what it measures.
| Code | P205B |
|---|---|
| System | Engine and transmission |
| Group | P20xx, Emissions: catalysts and AdBlue |
| Type | Generic: it means the same on every make |
How to read and clear P205B 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 P205B 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
- P2057 The circuit signal of AdBlue injector 2 on bank 2 is low
- P2058 The circuit signal of AdBlue injector 2 on bank 2 is high
- P2059 The AdBlue injection air pump control has a broken or disconnected wire
- P205A The AdBlue tank temperature sensor has an electrical fault
- P205C The AdBlue tank temperature sensor gives a lower signal than normal
- P205D The AdBlue tank temperature sensor gives a higher signal than normal
- P205E The AdBlue tank temperature sensor fails now and then
- P205F The AdBlue system (bank 2) gives readings outside the normal range
- P2002 Diesel particulate filter efficiency below threshold (bank 1)
- P2003 Diesel particulate filter efficiency below threshold (bank 2)
- P2004 Intake manifold runner control stuck open (bank 1)
- P2005 Intake manifold runner control stuck open (bank 2)
What does code P205B mean?
The AdBlue tank temperature sensor 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 P205B?
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, P205B 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.
