P0C9B: The high voltage battery temperature sensor L fails now and then
The high voltage battery temperature sensor L fails now and then. It is usually the part, its wiring or a connector with poor contact.
| Code | P0C9B |
|---|---|
| System | Engine and transmission |
| Group | P0Cxx, Hybrid and electric |
| Type | Generic: it means the same on every make |
How to read and clear P0C9B 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 P0C9B 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
- P0C97 The high voltage battery temperature sensor L has an electrical fault
- P0C98 The high voltage battery temperature sensor L gives readings outside the normal
- P0C99 The high voltage battery temperature sensor L gives a lower signal than normal
- P0C9A The high voltage battery temperature sensor L gives a higher signal than normal
- P0C9C The current sensor B circuit in the 14 volt power module has a fault
- P0C9D The 14 volt power module current sensor B circuit signal is outside its
- P0C9E The 14 volt power module current sensor B circuit signal is too low
- P0C9F The 14 volt power module current sensor B circuit signal is too high
What does code P0C9B mean?
The high voltage battery temperature sensor L fails now and then. It is usually the part, its wiring or a connector with poor contact.
How do you clear P0C9B?
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, P0C9B 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.
