What does code P2596 mean?

Q: What does code P2596 mean?

Turbocharger Speed Sensor B Circuit High. P2596 means the engine computer has detected an abnormally high voltage on the signal circuit for turbocharger speed sensor B, which is the sensor that reports how fast the turbocharger shaft is spinning. The computer expects a voltage within a calibrated range, and a reading above that range tells it the circuit is open, shorted to power, or the sensor is not reporting a valid speed signal.

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P2596

P2596Turbocharger Speed Sensor B Circuit High

P2596 means the engine computer has detected an abnormally high voltage on the signal circuit for turbocharger speed sensor B, which is the sensor that reports how fast the turbocharger shaft is spinning. The computer expects a voltage within a calibrated range, and a reading above that range tells it the circuit is open, shorted to power, or the sensor is not reporting a valid speed signal.

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.