P258C: The vacuum pump control gives a lower signal than normal
The vacuum pump control gives a lower signal than normal. It is usually the part, its wiring or a connector with poor contact.
| Code | P258C |
|---|---|
| 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 P258C 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 P258C 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
- P2588 The turbocharger boost control position sensor B gives a lower signal than
- P2589 The turbocharger boost control position sensor B gives a higher signal than
- P258A The vacuum pump control has a broken or disconnected wire
- P258B The vacuum pump control gives readings outside the normal range
- P258D The vacuum pump control gives a higher signal than normal
- P258E The power take-off enabling switch gives readings outside the normal range
- P258F There is a fault in the torque management request output signal
- P2590 The turbocharger boost control position sensor B fails now and then
- P2563 Turbocharger boost control position sensor A range/performance
What does code P258C mean?
The vacuum pump control gives a lower signal than normal. It is usually the part, its wiring or a connector with poor contact.
How do you clear P258C?
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, P258C 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.
