Powertrain
generic / SAE
P2564
Turbocharger Boost Control Position Sensor A Circuit Low
Position sensor A signal voltage below the lower limit — short to ground in the signal line or open reference voltage at the sensor.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 64
Possible causes
- Signal wire shorted to ground high
- Missing 5 V reference at the sensor medium
- Connector pins corroded - high contact resistance low
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–1200 €
- Estimated time: 0.6–2.5 h
- Component: turbo actuator position sensor a
- Component: sensor wiring
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012