P34BAB 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
- P34BA tells that the temperature signal from bank 2's exhaust actuator is pulled under its lower limit. Typical sources are a signal wire that has found ground, for instance where the harness runs close to hot exhaust parts, or a sensor element shorted inside the actuator. If the controller reads the low voltage as heat, it protects the actuator by reducing its current, as Aisin describes, so the bank 2 exhaust timing may no longer follow its target and timing codes such as P0024 can follow. The code is catalogued by NTN-SNR; no maker publishes it, so any threshold remains unknown. Repairs range from mending a wire to replacing the actuator, because the sensor sits in its electronics. Bank 1 low: P34B6; bank 2 high: P34BB.
- What you may notice
- Malfunction indicator lamp lit
- Bank 2 exhaust timing limited, possibly with additional timing codes
- Likely causes
- LikelyHarness near exhaust parts damaged, signal shorted to ground
- PossibleSensor element shorted inside the bank 2 actuator
- RareInput of the controlling module faulty
- 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 – €850
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.