OBD Guide
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P003A

Turbocharger/Supercharger Boost Control A Position Exceeded Learning Limit

P003A is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger Boost Control A Position Exceeded Learning Limit. Common causes: boost control solenoid valve malfunction, leaks in the boost system. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Reduced engine power
  • Unstable engine operation
  • Increased fuel consumption
  • Check Engine Light Illuminates

Causes

  • Boost control solenoid valve malfunction
  • Leaks in the boost system
  • Contamination or wear of the boost control mechanisms
  • Problems with the wiring harness or connectors
  • Boost control position sensor malfunction

How to Fix

  1. Check the system for leaks
  2. Check the operation of the boost control solenoid valve
  3. Inspect the wiring harness and connectors for damage.
  4. Check boost control position sensor
  5. If necessary, replace faulty components
  6. Reset error and test drive

Related codes

P003BP003CP003D

Error P003A by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P003A code mean?

P003A is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger Boost Control A Position Exceeded Learning Limit

What causes a P003A error code?

The most common causes of P003A include: Boost control solenoid valve malfunction; Leaks in the boost system; Contamination or wear of the boost control mechanisms; Problems with the wiring harness or connectors.

How do I fix a P003A diagnostic trouble code?

To fix P003A: Check the system for leaks. Check the operation of the boost control solenoid valve. Inspect the wiring harness and connectors for damage.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P003A?

Limited driving only, diagnose soon

How much does it cost to fix P003A?

The estimated repair cost for P003A is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat