Powertrain
Definition only
Lights the check engine lamp
P2590: Turbocharger Boost Control Position Sensor B Circuit Intermittent/Erratic
Standardized SAE J2012 code · P25xx — Auxiliary inputs
What does P2590 mean?
Position sensor B signal jumps or drops out — vibration on the actuator, oil mist contamination or chafed wiring near the hot turbo.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Common causes
- High Vibration-induced chafing of the harness
- Medium Oil mist on the sensor
- Low Connector with intermittent contact under vibration
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2590 on the same make and model first.
P2590 in the community
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