P0B4A: The hybrid battery voltage detection D has an electrical fault
The hybrid battery voltage detection D has an electrical fault. It may be the part itself, its connector or the wiring.
| Code | P0B4A |
|---|---|
| System | Engine and transmission |
| Group | P0Bxx, Hybrid and electric |
| Type | Generic: it means the same on every make |
How to read and clear P0B4A 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 P0B4A 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
- P0B46 The hybrid battery voltage detection C gives readings outside the normal range
- P0B47 The hybrid battery voltage detection C gives a lower signal than normal
- P0B48 The hybrid battery voltage detection C gives a higher signal than normal
- P0B49 The hybrid battery voltage detection C fails now and then
- P0B4B The hybrid battery voltage detection D gives readings outside the normal range
- P0B4C The hybrid battery voltage detection D gives a lower signal than normal
- P0B4D The hybrid battery voltage detection D gives a higher signal than normal
- P0B4E The hybrid battery voltage detection D fails now and then
What does code P0B4A mean?
The hybrid battery voltage detection D has an electrical fault. It may be the part itself, its connector or the wiring.
How do you clear P0B4A?
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, P0B4A 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.
