P259A: The turbo control position sensor B has a low signal and poor performance
The turbo control position sensor B has a low signal and poor performance. Its sensor, connector and wiring should be checked.
| Code | P259A |
|---|---|
| System | Engine and transmission |
| Group | P25xx, Auxiliary inputs and electrical system |
| Type | Generic: it means the same on every make |
How to read and clear P259A 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 P259A 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
- P2596 The turbocharger speed sensor B gives a higher signal than normal
- P2597 The turbocharger speed sensor B fails now and then
- P2598 The turbo control position sensor A signal is too low
- P2599 The turbo control position sensor A signal is too high
- P259B The turbo control position sensor B has a high signal and poor performance
- P259C Turbocharger A boost control takes too long to enter closed loop regulation
- P259D Turbocharger B boost control takes too long to enter closed loop regulation
- P259E There is a fault in the turbocharger A boost control position in the low limit
- P2563 Turbocharger boost control position sensor A range/performance
What does code P259A mean?
The turbo control position sensor B has a low signal and poor performance. Its sensor, connector and wiring should be checked.
How do you clear P259A?
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, P259A 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.
