P34A6A Camshaft Position Actuator Temperature Sensor Circuit Low Bank 1
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- With P34A6 the temperature signal from the intake cam actuator on bank 1 sits under its minimum. No source available to us names the sensor type. If it is the usual NTC thermistor, low voltage corresponds to high temperature, so a signal line shorted to ground or an internally shorted sensor looks to the module like an overheated actuator. Electric phasers guard their motor and driver against heat – Aisin describes cutting the current in stages while the board temperature stays high – so a false hot value can make the controller hold the phaser back. NTN-SNR names P34A6 as a too-small signal of the inlet temperature sensor. No carmaker publishes this code in detail. High is P34A7, bank 2 P34AA.
- What you may notice
- Check engine light on
- Intake phasing on bank 1 limited, less pulling power
- Likely causes
- LikelySignal wire shorted to ground (chafed at the cylinder head)
- PossibleSensor shorted internally
- RareActuator really overheated by a sluggish phaser
- 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 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.