OBD Guide
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P0047

Turbocharger/Supercharger Boost Control A Circuit Low

P0047 is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger Boost Control A Circuit Low. Common causes: broken or damaged wiring to the turbine actuator, short circuit in control circuit to ground. Estimated repair cost: $56–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Reduced engine power
  • Poor response to pressing the gas pedal
  • Increased fuel consumption
  • Black or blue smoke from the exhaust pipe
  • Unstable idle speed
  • Activating Limp Mode (emergency mode)
  • Whistling sounds from the turbocharger area

Causes

  • Broken or damaged wiring to the turbine actuator
  • Short circuit in control circuit to ground
  • Variable geometry turbine actuator malfunction
  • Oxidation or corrosion of connectors
  • Boost pressure control valve malfunction
  • Problems with the engine control unit
  • Mechanical jamming of the turbine actuator
  • Violation of the tightness of vacuum lines

How to Fix

  1. Connect a diagnostic scanner and read all error codes
  2. Check the condition of the connectors and wiring to the turbine actuator
  3. Measure the actuator resistance according to technical documentation
  4. Check the supply voltage in the actuator control circuit
  5. Inspect vacuum hoses for damage and leaks
  6. Check the performance of the actuator using diagnostic equipment
  7. If necessary, replace damaged wiring or connectors
  8. Replace faulty turbine actuator
  9. Clear error codes and test drive
  10. Recheck the system for errors

Related codes

P0048P0045P0046P0049P0234P0299P2563

Error P0047 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0047 code mean?

P0047 is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger Boost Control A Circuit Low

What causes a P0047 error code?

The most common causes of P0047 include: Broken or damaged wiring to the turbine actuator; Short circuit in control circuit to ground; Variable geometry turbine actuator malfunction; Oxidation or corrosion of connectors.

How do I fix a P0047 diagnostic trouble code?

To fix P0047: Connect a diagnostic scanner and read all error codes. Check the condition of the connectors and wiring to the turbine actuator. Measure the actuator resistance according to technical documentation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0047?

Limited driving only, diagnose soon

How much does it cost to fix P0047?

The estimated repair cost for P0047 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

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