Code result
P2586
Turbocharger Boost Control Position Sensor B Circuit
Moderate severity
What it means
General electrical fault on the turbocharger boost control position sensor B — second position sensor on the same actuator (redundant Hall) or on a second turbo (twin-turbo, sequential or two-stage). With B invalid the ECM cannot cross-check actuator A and falls back to limited boost control.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Open or shorted wiring to the position sensor
highOne of the most commonly reported causes for this code — check this first.
Failed Hall element
mediumA plausible cause — test and verify before replacing parts.
Related help
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