P2ADD: The AdBlue tank temperature sensor B fails now and then
The AdBlue tank temperature sensor B fails now and then. It is usually the part, its wiring or a connector with poor contact.
| Code | P2ADD |
|---|---|
| System | Engine and transmission |
| Group | P2Axx, Engine and emissions |
| Type | Generic: it means the same on every make |
How to read and clear P2ADD 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 P2ADD 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
- P2AD9 The AdBlue pump motor position sensor gives a higher signal than normal
- P2ADA The AdBlue tank temperature sensor B gives readings outside the normal range
- P2ADB The AdBlue tank temperature sensor B gives a lower signal than normal
- P2ADC The AdBlue tank temperature sensor B gives a higher signal than normal
- P2ADE The AdBlue tank temperature sensor B has an electrical fault
- P2ADF There is an air leak in the intake of bank 2
- P2AE0 The intake air lambda sensor pumping current trim (bank 1) has a broken or
- P2AE1 The intake air lambda sensor pumping current trim (bank 1) gives a lower signal
- P2A00 O2 sensor circuit range/performance (bank 1, sensor 1)
What does code P2ADD mean?
The AdBlue tank temperature sensor B fails now and then. It is usually the part, its wiring or a connector with poor contact.
How do you clear P2ADD?
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, P2ADD 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.
