P2568
Turbocharger Boost Control Position Sensor Circuit High
The turbocharger position sensor signal is above the upper limit — short to supply, open ground or sensor failed high.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: hard
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Common causes
Ordered by how often each turns out to be the cause.
- Signal wire shorted to supplyCommon
- Sensor failed highPossible
- Connector pins corroded - high contact resistanceLess likely
Parts involved
- Turbocharger Position Sensor
- Turbocharger Actuator Wiring
P2568 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.