U033B: The high voltage battery interface control unit B does not have the right
The high voltage battery interface control unit B does not have the right configuration. It is solved at the workshop with a diagnostic tool.
| Code | U033B |
|---|---|
| System | Communication network |
| Group | U03xx, Control unit software and configuration |
| Type | Generic: it means the same on every make |
How to read and clear U033B 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 U033B 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
- U0336 The airbag control unit has the wrong software version
- U0337 The battery charger control unit does not have the right configuration
- U0339 The body control unit B does not have the right configuration
- U033A The high voltage battery interface control unit A does not have the right
- U033C The high voltage battery interface control unit C does not have the right
- U033D The high voltage battery interface control unit D does not have the right
- U033E The high voltage battery interface control unit E does not have the right
- U033F The high voltage battery interface control unit F does not have the right
What does code U033B mean?
The high voltage battery interface control unit B does not have the right configuration. It is solved at the workshop with a diagnostic tool.
How do you clear U033B?
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, U033B 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.
