P00A9: Intermittent signal from the second intake air temperature sensor of the second
Intermittent signal from the second intake air temperature sensor of the second bank. It is usually the connector or the cable.
| Code | P00A9 |
|---|---|
| System | Engine and transmission |
| Group | P00xx, Air, fuel and emissions |
| Type | Generic: it means the same on every make |
How to read and clear P00A9 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 P00A9 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
- P00A5 The intake air temperature sensor 2 (bank 2) has an electrical fault
- P00A6 The second intake air temperature sensor of the second bank gives readings out
- P00A7 Low signal from the second intake air temperature sensor of the second bank
- P00A8 The intake air temperature sensor 2 (bank 2) gives a higher signal than normal
- P00AA The intake air temperature sensor 1 (bank 2) has an electrical fault
- P00AB The intake air temperature sensor 1 (bank 2) gives readings outside the normal
- P00AC Low signal from the intake air temperature sensor of the second bank
- P00AD The intake air temperature sensor 1 (bank 2) gives a higher signal than normal
- P0010 Camshaft A actuator control: open circuit (bank 1)
- P0011 Camshaft A timing over-advanced (bank 1)
- P0012 Camshaft A timing over-retarded (bank 1)
- P0013 Camshaft B actuator control: open circuit (bank 1)
What does code P00A9 mean?
Intermittent signal from the second intake air temperature sensor of the second bank. It is usually the connector or the cable.
How do you clear P00A9?
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, P00A9 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.
