P0E3B: The high voltage battery coolant pump is turning faster than it should
The high voltage battery coolant pump is turning faster than it should. It may be the part itself, its connector or the wiring.
| Code | P0E3B |
|---|---|
| System | Engine and transmission |
| Group | P0Exx, Hybrid and electric |
| Type | Generic: it means the same on every make |
How to read and clear P0E3B 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 P0E3B 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
- P0E37 The DC converter voltage sensor B gives readings outside the normal range
- P0E38 The DC converter voltage sensor B gives a lower signal than normal
- P0E39 The DC converter voltage sensor B gives a higher signal than normal
- P0E3A The DC converter voltage sensor B fails now and then
- P0E3C The high voltage battery coolant pump is turning slower than it should
- P0E3D The warning light control of the control pilot line gives a lower signal than
- P0E3E The warning light control of the control pilot line gives a higher signal than
- P0E3F The control of charge status light A gives a lower signal than normal
What does code P0E3B mean?
The high voltage battery coolant pump is turning faster than it should. It may be the part itself, its connector or the wiring.
How do you clear P0E3B?
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, P0E3B 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.
