P2563 Turbocharger boost control position sensor reading is out of range or does not make sense

Turbocharger boost control position sensor circuit range/performance

Severity not verified — if the car runs badly, have it inspected

No source here grades P2563 itself, but the cited reports describe reduced power and, on some trucks, power cut-outs, so treat it as a code to look at soon rather than ignore.

It gets more serious if:

  • Inspect soon: Inspect soon if the engine loses power, goes into limp mode or the vehicle shudders. The NHTSA complaints for this code describe power cutting out in traffic, and TroubleCodes.net notes that boost that cannot be controlled can damage the engine.

Source: how we rate severity

P2563 in short

P2563 means the engine computer does not trust the position signal from the turbocharger's boost control, usually the variable-vane or wastegate actuator. Wiring damage, a sticking vane or wastegate and a failing sensor are the usual causes. Expect reduced power; have it checked soon rather than driving hard on it.

Many turbochargers control boost by moving vanes or a wastegate. A position sensor tells the computer where that mechanism actually sits. P2563 is set when the reported position is out of range or does not match what the computer commanded.

Two separate things can cause that: the sensor or its wiring is giving a bad reading, or the mechanism is physically stuck and the sensor is reporting that truthfully. A Duramax owner's repair invoice in an NHTSA complaint shows the second case, where the control solenoid and position sensor worked but the vane stopped at a fixed position.

GM, Volkswagen and Ford each list P2563 in bulletins, usually next to underboost or other turbo codes. The summaries seen here describe wire chafe at the vane position sensor (GM) and a stuck wastegate (Volkswagen).

Most likely causes

  1. Chafed or damaged wiring at the turbo position sensor

    Supported by vehicle data
    Why it ranks here
    GM preliminary information PIP4636 says to inspect for a chafed wire at the turbo vane position sensor when P2563 and related turbo codes are stored, on 2007-2009 Express and Savana diesels. TroubleCodes.net also lists damaged or corroded wiring first.
    What would change this
    Rises if the harness near the turbo shows heat or rub damage or the sensor signal drops out when the harness is moved. Falls if the wiring tests clean.

  2. Turbo vane or wastegate mechanism stuck

    Supported by vehicle data
    Why it ranks here
    Two Silverado 3500 complaints quote work orders that found the vane stuck and replaced the turbocharger; a Volkswagen bulletin summary names a stuck wastegate for P2563. A mechanism that cannot move to its commanded position reads out of range.
    What would change this
    Rises if the actuator is commanded on a scan tool and the position does not follow. Falls if the position follows the command smoothly.

  3. Failed boost control position sensor

    Common general cause
    Why it ranks here
    TroubleCodes.net lists a defective boost control position sensor among the causes. It ranks below wiring and a stuck mechanism because those are named in bulletins and complaints here.
    What would change this
    Rises if wiring is sound, the mechanism moves freely and the sensor reading is erratic or out of its voltage range. Falls if the sensor reads correctly.

  4. Inlet or exhaust restriction, or (rarely) the engine computer

    Possible — needs testing
    Why it ranks here
    TroubleCodes.net lists inlet or exhaust restrictions and, rarely, a failed PCM. These are checked after the turbo and its wiring.
    What would change this
    Rises if boost is abnormal with a clean sensor and a free mechanism. Falls once the turbo components test good and the restriction checks pass.
    How to test the engine control module (ecm / pcm)

What to test first

Start at step 1. Each result tells you what it means and where to go next.

  1. Read the full code list and freeze-frame with a scan tool. Note related turbo codes such as P0299, P00AF or P2564, and write down the commanded and actual boost position if the tool shows them.

    Low riskTool: scan tool

    • IfP0299 or other turbo codes are stored too

      It meansThe boost shortfall and the position fault are probably the same problem; test the position circuit first.

      Go to step 2

    • IfP2563 is the only code

      It meansGo to the wiring and actuator checks.

      Go to step 2

  2. With the engine off and cool, inspect the harness and connector at the turbocharger actuator or position sensor for chafing, heat damage and corrosion.

    Use caution

    Warning:The turbocharger and exhaust parts around it stay hot long after the engine is off and can cause burns.

  3. Command the boost actuator or wastegate with a bidirectional scan tool and watch whether the reported position follows. Shops can also check the vane or wastegate by hand.

    Best left to a shopTool: bidirectional scan tool

    Warning:Commanding the actuator while the engine is running can change boost abruptly; keep hands, tools and clothing clear of belts and moving parts.

Symptoms

  • Check engine light on
  • Reduced power or limp mode Gets more serious: stop and have it checked.
  • Power cutting out in traffic Gets more serious: stop and have it checked.
  • Shaking or surging under load

Compare with: Check engine light with loss of power

How to fix

Parts and cost context

  • Engine control module (ECM / PCM):Replaced only after wiring, sensor and turbo checks; labor varies, get a quote.

Labor varies by vehicle and shop; get a quote before you approve a repair.

Compare used part prices on PartPriceGuide

On your vehicle

Chevrolet

  • PIP4636Status unverified

    Turbo vane position sensor wire chafe

    2007–2009express · NHTSA 10030730

    Preliminary information: when P2563 and related turbo codes appear with reduced power or the SES light, inspect the vane position sensor wiring for a chafe. Summary read only.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

GMC

  • PIP4636 (gmc)Status unverified

    Turbo vane position sensor wire chafe

    2007–2009savana · NHTSA 10030730

    Preliminary information: when P2563 and related turbo codes appear with reduced power or the SES light, inspect the vane position sensor wiring for a chafe. Summary read only.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Volkswagen

  • 211403Status unverified

    Engine lacks performance with DTCs P2563, P2564, P0299 or P20D8

    2009–2014golf, jetta · NHTSA 10239811

    Lists the complaint and DTCs for the engine fault memory. Summary read only.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • V2125012077251_1Status unverified

    Turbocharger wastegate stuck with P2563 and/or P00AF

    2015–2024atlas, golf · NHTSA 11016582

    Names a stuck turbocharger wastegate for these codes. Summary read only.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • P0299Turbocharger or supercharger is producing less boost than the engine computer requested

    Shares causes Supported by vehicle data

    A VW bulletin summary and GM turbo bulletins list P2563 with underboost codes; a stuck vane or wastegate can produce both.

  • P00AFTurbo boost control module performance fault

    Shares causes Supported by vehicle data

    A Volkswagen bulletin summary names P2563 and P00AF together for a stuck wastegate.

All Turbocharging, fuel pressure and EGR codes

P2563 questions

Is P2563 a sensor problem or a turbo problem?

Either. A bad sensor or wiring can set it, and so can a vane or wastegate that is physically stuck. Complaints and bulletins here show both.

Sources and review

  1. NHTSA complaint ODI 10522941: 2006 Chevrolet Silverado 3500 — NHTSA Office of Defects Investigation (public complaint)
  2. NHTSA complaint ODI 11694780: 2024 Nissan Rogue — NHTSA Office of Defects Investigation (public complaint)
  3. P2563 trouble code page — TroubleCodes.net
  4. NHTSA complaint ODI 11745140: 2019 Honda Accord — NHTSA Office of Defects Investigation (public complaint)
  5. GM preliminary information PIP4636: turbo vane position sensor wire chafe — General Motors
  6. NHTSA complaint ODI 10522944: 2006 Chevrolet Silverado 3500 — NHTSA Office of Defects Investigation (public complaint)
  7. VW bulletin: turbocharger wastegate stuck, DTCs P2563 and/or P00AF — Volkswagen Group of America
  8. VW bulletin 211403: engine lacks performance, warning light, DTCs P2563, P2564, P0299 or P20D8 — Volkswagen Group of America
Last reviewed
Written by
Saurabh K.
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