P2523: The air conditioning request B gives a lower signal than normal
The air conditioning request B gives a lower signal than normal. It is usually the part, its wiring or a connector with poor contact.
| Code | P2523 |
|---|---|
| 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 P2523 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 P2523 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
- P251F The power take-off motor switch-off gives a higher signal than normal
- P2520 The air conditioning request A gives a lower signal than normal
- P2521 The air conditioning request A gives a higher signal than normal
- P2522 The air conditioning request B has an electrical fault
- P2524 The air conditioning request B gives a higher signal than normal
- P2525 The vacuum tank pressure sensor has an electrical fault
- P2526 The vacuum tank pressure sensor gives readings outside the normal range
- P2527 The vacuum tank pressure sensor gives a lower signal than normal
- P2563 Turbocharger boost control position sensor A range/performance
What does code P2523 mean?
The air conditioning request B gives a lower signal than normal. It is usually the part, its wiring or a connector with poor contact.
How do you clear P2523?
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, P2523 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.
