P2B23: The high voltage electronics coolant temperature sensor B gives a higher signal
The high voltage electronics coolant temperature sensor B gives a higher signal than normal. It is usually the sensor itself, its wiring or a real fault in what it measures.
| Code | P2B23 |
|---|---|
| System | Engine and transmission |
| Group | P2Bxx, Engine and emissions |
| Type | Generic: it means the same on every make |
How to read and clear P2B23 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 P2B23 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
- P2B1F The cylinder 8 injection pulse offset needs its learning procedure
- P2B20 The high voltage electronics coolant temperature sensor B has an electrical
- P2B21 The high voltage electronics coolant temperature sensor B gives readings
- P2B22 The high voltage electronics coolant temperature sensor B gives a lower signal
- P2B24 The high voltage electronics coolant temperature sensor C has an electrical
- P2B25 The high voltage electronics coolant temperature sensor C gives readings
- P2B26 The high voltage electronics coolant temperature sensor C gives a lower signal
- P2B27 The high voltage electronics coolant temperature sensor C gives a higher signal
- P2BAC NOx exceedance: EGR deactivated
What does code P2B23 mean?
The high voltage electronics coolant temperature sensor B gives a higher signal than normal. It is usually the sensor itself, its wiring or a real fault in what it measures.
How do you clear P2B23?
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, P2B23 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.
