P0A81: The high voltage battery cooling fan 1 control has a broken or disconnected wire
The high voltage battery cooling fan 1 control has a broken or disconnected wire. It is usually a broken wire, a loose connector or the part itself.
| Code | P0A81 |
|---|---|
| System | Engine and transmission |
| Group | P0Axx, Hybrid and electric |
| Type | Generic: it means the same on every make |
How to read and clear P0A81 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 P0A81 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
- P0A7D The high voltage battery state of charge is lower than normal
- P0A7E The high voltage battery is getting too hot
- P0A7F Hybrid battery pack deterioration
- P0A80 Replace hybrid battery pack
- P0A82 The high voltage battery cooling fan 1 has got stuck
- P0A83 The high voltage battery cooling fan 1 has got stuck
- P0A84 The high voltage battery cooling fan 1 control gives a lower signal than normal
- P0A85 The high voltage battery cooling fan 1 control gives a higher signal than normal
- P0A0F Engine failed to start
- P0A1F Battery energy control module fault
- P0A94 DC/DC converter performance
- P0AA6 Hybrid high-voltage system isolation fault
What does code P0A81 mean?
The high voltage battery cooling fan 1 control has a broken or disconnected wire. It is usually a broken wire, a loose connector or the part itself.
How do you clear P0A81?
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, P0A81 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.
