OBD-II code · Powertrain (generic, extended)
P2586 Turbocharger Boost Control Position Sensor B Circuit
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 with P2586?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen or shorted wiring to the position sensor
- PossibleFailed Hall element
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.6–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Turbo Actuator Position Sensor B, Sensor Wiring
Related codes
- P2562Turbocharger Boost Control Position Sensor A Circuit
- P2583Cruise Control Front Distance Range Sensor Single Sensor or Center
- P2584Fuel Additive Control Module Requested MIL Illumination
- P2585Fuel Additive Control Module Warning Lamp Request
- P2587Turbocharger Boost Control Position Sensor B Circuit Range/Performance
- P2588Turbocharger Boost Control Position Sensor B Circuit Low
- P2589Turbocharger Boost Control Position Sensor B Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.