P2562

Turbocharger Boost Control Position Sensor Circuit

P2562 is a generic OBD-II powertrain diagnostic trouble code: Turbocharger Boost Control Position Sensor Circuit. It is logged by the engine control unit when the powertrain monitor detects that a specific fault threshold has been exceeded — typically resulting in the malfunction-indicator lamp (MIL / check-engine light) being illuminated.

Code
P2562
Group
Powertrain
System
Powertrain
Severity
Warning (MIL on, possible limp mode)
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What P2562 means

P2562 is set when the ECM detects that the signal from the turbocharger boost control position sensor (typically a variable-geometry turbocharger vane position sensor) is outside the expected electrical range or fails to correlate with commanded vane position. This sensor provides closed-loop feedback so the ECM can precisely control boost pressure.

The position sensor is usually a contactless magnetic or potentiometer-type device mounted on the VGT actuator. Faults include open or short circuits in the signal wiring, a failed sensor, or contamination of the actuator mechanism preventing the sensor arm from moving through its full travel. Sensor supply voltage or ground problems can also generate this code.

When the position feedback is lost, the ECM cannot perform closed-loop boost control and may command a fixed, conservative boost target or activate a limp-home mode with reduced engine output to prevent turbocharger overspeed or over-boost events. Smoke, turbo noise changes, or noticeable power loss often accompany this fault.

Common causes

Most-frequently reported root causes when P2562 is logged.

  • 1
    Open or short circuit in the VGT position sensor signal wiring.
  • 2
    Failed or worn VGT actuator position sensor.
  • 3
    Corroded or loose connector at the turbocharger actuator.
  • 4
    Loss of 5V reference supply to the position sensor.
  • 5
    Carbon build-up or contamination jamming the VGT vane mechanism, limiting sensor travel.
  • 6
    Failed VGT actuator with internal sensor damage.
  • 7
    Intermittent wiring fault caused by heat cycling near the turbocharger.

Symptoms drivers notice

MIL illuminated with possible limp mode or reduced engine power.
Noticeable loss of turbo boost and reduced acceleration.
Excessive black or blue smoke under load.
Turbocharger noise may change due to uncontrolled vane position.
Scan tool shows VGT position sensor voltage stuck or out of range.

How to diagnose P2562

A typical diagnostic flow when this code is present.

  1. 1
    Retrieve all DTCs and freeze frame data before proceeding.
  2. 2
    Check live data for VGT position sensor voltage and compare commanded vs actual position.
  3. 3
    Inspect the wiring harness near the turbocharger for heat damage, chafing, or open circuits.
  4. 4
    Verify 5V reference voltage and sensor ground at the actuator connector.
  5. 5
    Disconnect the sensor and measure its resistance or output sweep if it is a potentiometer type.
  6. 6
    Inspect the VGT actuator for carbon build-up or mechanical binding; clean if required.
  7. 7
    If electrical circuit and sensor are confirmed good, suspect the ECM input circuit.

Vehicles where we've handled P2562

Platforms in our catalogue with confirmed P2562 coverage.

BMW 320D
2016

Related powertrain codes

Frequently asked questions

Can cleaning the VGT fix P2562?

If carbon binding is limiting the vane travel and preventing the sensor from reaching its calibrated endpoints, cleaning the VGT can resolve the fault.

Is it safe to drive in limp mode with P2562?

Short distances at low load are generally tolerable, but continued operation risks turbocharger damage from uncontrolled vane position; repair promptly.

Does P2562 always mean the turbo needs replacement?

No. Many cases are resolved by repairing wiring, replacing the position sensor, or cleaning the actuator mechanism.

Could an ECM fault cause P2562?

Rarely, but a failed ECM input circuit can produce this code after the sensor and wiring have been ruled out.

Disabling P2562 in software

RaceTune can permanently disable P2562 — and any other OBD-II diagnostic trouble code — on every ECU family we support. The monitor is disabled inside the ECU itself, so the fault stops being logged: the warning light stays off and the engine never enters limp mode for this code. The change is tied to your exact software version.

Permanent
The monitor is disabled in the ECU itself — not just cleared. It cannot return.
Tailored to your file
Each patch is matched to your specific software version — never a one-size-fits-all file.
Reversible
The original file is always preserved. Reflash the stock to return the ECU to factory state.

ECUs with a P2562 disable in our catalogue

Confirmed coverage from our recipe database — we support many more families. Upload your file and our identifier will match it automatically.

  • Bosch EDC17C50 verified 1 software version

Software modifications affect emissions compliance and are not road-legal in many jurisdictions. RaceTune service files are intended for motorsport, off-road, and export use.

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