P2CA9: Temperature sensor F of the DC to DC converter has an electrical fault
Temperature sensor F of the DC to DC converter has an electrical fault. It may be the part itself, its connector or the wiring.
| Code | P2CA9 |
|---|---|
| System | Engine and transmission |
| Group | P2Cxx, Engine, emissions and electrification |
| Type | Generic: it means the same on every make |
How to read and clear P2CA9 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 P2CA9 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
- P2CA1 The intercooler water pump gives a higher signal than normal
- P2CA2 The intercooler water pump gives a lower signal than normal
- P2CA5 Temperature sensor E of the DC to DC converter has an electrical fault
- P2CA8 Temperature sensor E of the DC to DC converter gives readings that do not match
- P2CAC Temperature sensor F of the DC to DC converter gives readings that do not match
- P2CB2 The intercooler B water pump is turning slower than it should
- P2CC1 The alternator voltage feedback line B is not working properly
- P2CC6 The generator inverter power power supply B gets less voltage than it should
What does code P2CA9 mean?
Temperature sensor F of the DC to DC converter has an electrical fault. It may be the part itself, its connector or the wiring.
How do you clear P2CA9?
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, P2CA9 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.
