P2563 means the position feedback of the turbocharger boost control actuator - variable vanes or wastegate - does not match the commanded position, without an open or short being reported. GM's 2009 Duramax diesel table sets it when vane position differs from target by 15 % or more for 5 s (Type B, warning light after two trips). VW's 2014 Passat book treats a position signal above 4.5 V or below 0.3 V as implausible on the 2.0 L TDI (CKRA), and VW bulletin 21-15-06 links P2563 on 2.0 L TDI engines to kinked vacuum hoses, a leaking vacuum diaphragm or a broken adjustment stud on the turbocharger. P2562/P2564/P2565 are circuit faults, P2566 an intermittent signal. Boost is often limited, so power drops noticeably.
Medium severity. Can I keep driving?Drive without demanding power and go to a repair shop soon. If you see a lot of blue smoke or hear a metallic noise, shut off the engine.
Symptoms
- Noticeable loss of power, limp mode
- Check engine light
- Underboost code P0299 stored at the same time
Most likely causes
- Kinked, twisted or leaking vacuum hose to the boost actuator
- Leaking actuator diaphragm or sticking vanes
- Broken or missing adjustment stud, actuator travel out of tolerance
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: hard
- It can trigger limp mode.
- It affects emissions.
What each character of P2563 means
- P: Powertrain: engine and transmission
- 2: Generic code: same on every make
- 5: Speed and idle
- 63: Specific fault in that system
Frequently asked questions
Can I keep driving with code P2563?
Drive without demanding power and go to a repair shop soon. If you see a lot of blue smoke or hear a metallic noise, shut off the engine.
What causes code P2563?
The most common causes are: kinked, twisted or leaking vacuum hose to the boost actuator; leaking actuator diaphragm or sticking vanes; broken or missing adjustment stud, actuator travel out of tolerance.
Related codes
- P2562Turbocharger Boost Control Position Sensor A Circuit
- P2564Turbocharger Boost Control Position Sensor A Circuit Low
- P2565Turbocharger Boost Control Position Sensor A Circuit High
- P2566Turbocharger Boost Control Position Sensor A Circuit Intermittent
- P0299Turbocharger/Supercharger A Underboost Condition
Sources
- law.cornell.edu: 13 CCR 1968.2
- gsi.ext.gm.com: 09OBDG01 DURAMAX Engine Diagnostics
- static.nhtsa.gov: MC 10074004 2280
- static.nhtsa.gov: MC 10176953 0001
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.