P05E2: The air conditioning refrigerant pressure sensor B fails now and then
The air conditioning refrigerant pressure sensor B fails now and then. It is usually the part, its wiring or a connector with poor contact.
| Code | P05E2 |
|---|---|
| System | Engine and transmission |
| Group | P05xx, Speed, idle and auxiliary inputs |
| Type | Generic: it means the same on every make |
How to read and clear P05E2 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 P05E2 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
- P05DD The brake pedal position sensor B gives a lower signal than normal
- P05DE The brake pedal position sensor B gives a higher signal than normal
- P05DF The brake pedal position sensor B fails now and then
- P05E1 The air conditioning refrigerant pressure sensor A fails now and then
- P05E3 The parking brake sensor has an electrical fault
- P05E4 The parking brake sensor gives a lower signal than normal
- P05E5 The parking brake sensor gives a higher signal than normal
- P05E6 The parking brake sensor gives readings outside the normal range
- P0500 Vehicle speed sensor malfunction
- P0501 Vehicle speed sensor range/performance
- P0502 Vehicle speed sensor circuit low input
- P0503 Vehicle speed sensor intermittent, erratic or high
What does code P05E2 mean?
The air conditioning refrigerant pressure sensor B fails now and then. It is usually the part, its wiring or a connector with poor contact.
How do you clear P05E2?
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, P05E2 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.
