P2586 Fault Code

Turbocharger Boost Control Position Sensor B Circuit

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2586 fault code indicates an issue with the Turbocharger Boost Control Position Sensor B Circuit. This sensor is vital for monitoring the position of the turbocharger's wastegate or variable geometry, which controls the engine's boost level. If the electronic control unit (ECU) detects that the signal from this sensor is out of the expected range, it triggers this fault code.

What are the symptoms of the P2586 code?

Symptoms you may experience with a P2586 fault code include:

• Reduced engine performance or power.
• Increased turbo lag or unresponsive turbocharger.
• Engine stalling or rough idling.
• Illuminated check engine light on the dashboard.
• Potential overheating of the engine due to improper boost levels.

What causes the P2586 code?

Common causes of the P2586 code can include:

• Faulty boost control position sensor.
• Damaged wiring or connectors in the sensor circuit.
• Short circuits or open circuits in the wiring.
• Problems with the turbocharger itself, such as sticking wastegate or damaged variable geometry mechanism.
• Engine control module (ECM) software issues.

How to fix P2586?

To resolve the P2586 fault code, consider the following steps:

• Inspect the wiring and connectors for any visible damage or corrosion.
• Test the boost control position sensor with a multimeter to check for proper voltage and signal response.
• Replace any damaged parts such as the sensor, wiring, or connectors as necessary.
• Clear the fault code after repairs and test drive the vehicle to ensure the problem is resolved.
• If the issue persists, further diagnostics of the turbocharger system and ECM may be required.