P34AAA Camshaft Position Actuator Temperature Sensor Circuit Low Bank 2
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P34AA reports that the temperature sensor of the bank 2 intake cam actuator signals a voltage below its permitted range. Whether that equals a hot reading depends on the sensor design, which no public source names; with the common NTC thermistor it would mimic overheating, and the controller could limit the actuator current or stop phasing on that bank. In practice a signal wire grounded against the cylinder head, cables pinched during earlier engine work or a shorted sensor are the usual suspects. NTN-SNR lists P34AA as too small a signal of the inlet temperature sensor on the second bank; a manufacturer text is not public. Compare bank 1 (P34A6) and the high code P34AB.
- What you may notice
- Check engine light on
- Intake phasing on bank 2 suspended, slightly less power
- Likely causes
- LikelySignal wire grounded against the cylinder head
- PossibleCables pinched during earlier engine work
- PossibleSensor shorted internally
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €50 – €750
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.