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P0B1B: The high voltage battery voltage detection C gives a lower signal than normal

The high voltage battery voltage detection C gives a lower signal than normal. It is usually the part, its wiring or a connector with poor contact.

Code P0B1B at a glance
CodeP0B1B
SystemEngine and transmission
GroupP0Bxx, Hybrid and electric
TypeGeneric: it means the same on every make

How to read and clear P0B1B 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 P0B1B 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.

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What does code P0B1B mean?

The high voltage battery voltage detection C gives a lower signal than normal. It is usually the part, its wiring or a connector with poor contact.

How do you clear P0B1B?

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, P0B1B comes back.