Fuel and air

P2565 — Turbocharger Boost Control Position Sensor High

Severity: medium Drive with care, to a shop

What P2565 means

The engine control unit monitors the position of the actuator that regulates boost, either a wastegate actuator or a variable geometry turbo mechanism. A position sensor reports this with a voltage signal. P2565 sets when that voltage is higher than expected, usually from an open circuit, a short to power, or a failed sensor. The ECU can no longer control boost accurately.

Symptoms

  • Check engine light on
  • Reduced power or limp mode
  • Erratic or incorrect boost pressure
  • Sluggish acceleration
  • Possible unusual turbo noise
  • Higher fuel consumption

Possible causes

  1. Open circuit in the position sensor wiring
  2. Failed position sensor in the boost actuator
  3. Signal wire shorted to positive voltage
  4. Corroded or damaged connector terminals
  5. Faulty turbo actuator
  6. ECU fault (rare)

How to diagnose

  1. Scan for codes and freeze frame data, clear the code and see if it returns
  2. Compare specified and actual boost and actuator position in live data
  3. Inspect the wiring harness and sensor connector for damage, corrosion or chafing
  4. Check the 5 V reference and ground at the sensor connector
  5. Test the signal circuit for an open or a short to voltage
  6. Check hoses and vacuum lines to the actuator for cracks and leaks
  7. Move the actuator through its full range and look for sticking
  8. If wiring is good, replace the actuator or position sensor

Common fixes

  • Repair or replace damaged wiring and connectors
  • Replace the position sensor or the complete boost actuator
  • Replace cracked vacuum hoses
  • Free up or repair a sticking turbo mechanism
  • Perform adaptation or an ECU software update after repair

Questions and answers

What does P2565 mean?

The ECU is getting too high a voltage from the boost control position sensor. This points to a circuit problem or a failed sensor.

Can I drive with code P2565?

Briefly and carefully, to get it repaired. Power is usually limited, and incorrect boost can harm the turbo and engine.

How do I fix P2565?

Start with the wiring and connector, then check boost data and actuator movement. Most often the fix is a wiring repair or a new actuator or sensor.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.