P2566Turbocharger Boost Control Position Sensor A Circuit Intermittent
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2566 reports that the signal from the boost control position sensor flickers or drops out briefly instead of being steadily wrong. VW bulletins 21-15-04 (2015) and 21-15-06 (2020) for 2009-2014 Jetta, Golf and Jetta SportWagen with the 2.0 L TDI (CBEA, CJAA) list P2566 together with P2562-P2565 and P0299 for the complaint of lacking power; there the position sensor G581 sits in the vacuum diaphragm, and the repair path starts with vacuum hoses, diaphragm and the actuator travel. No thresholds are published. CARB requires turbocharger electronic components to be monitored as comprehensive components. P2563 is the plausibility fault, P2564/P2565 a steady low or high signal. Expect intermittent power loss and a warning light.
- What you may notice
- Intermittent loss of power or limp mode
- Check engine light, sometimes going out again
- Surging boost
- Likely causes
- LikelyLoose or corroded pin at the position sensor connector
- PossibleHeat-damaged or chafed sensor wiring near the turbocharger
- PossibleWorn position sensor in the actuator
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.