P2590

DTC P2590, sometimes indicated as P259000 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the engine idling stability causing turbocharger boost control position sensor "b" circuit intermittent/erratic.

This code is set when the PCM detects an erratic or intermittent signal from the turbocharger boost control position sensor.
Possible causes include a bad sensor, a wiring issue, or a problem with the PCM.
If this code is set, inspect the turbocharger boost control position sensor and its wiring for damage or issues. If no issues are found, replace the PCM.

• P2590: Boost Control Position Sensor B Circuit Intermittent/Erratic
• P2590: Turbocharger Boost Control Position Sensor "B" Circuit Intermittent/Erratic
• P2590: Turbocharger (TC) boost control position sensor B – circuit malfunction
• P2590 00: Turbocharger (TC) boost control position sensor B - circuit malfunction