What does code P2581 mean?

Q: What does code P2581 mean?

Turbocharger/Supercharger Speed Sensor A Circuit High. P2581 means the engine computer has detected an abnormally high voltage on the signal circuit from the turbocharger or supercharger speed sensor, which it interprets as an impossible or out-of-range sensor reading. The sensor is supposed to report how fast the compressor wheel is spinning, and a high-voltage condition tells the computer that the signal wire is likely shorted to power or the sensor has failed internally.

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P2581

P2581Turbocharger/Supercharger Speed Sensor A Circuit High

P2581 means the engine computer has detected an abnormally high voltage on the signal circuit from the turbocharger or supercharger speed sensor, which it interprets as an impossible or out-of-range sensor reading. The sensor is supposed to report how fast the compressor wheel is spinning, and a high-voltage condition tells the computer that the signal wire is likely shorted to power or the sensor has failed internally.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.