OBD Guide
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P259B

Turbocharger Boost Control Position Sensor B Performance - Stuck High

P259B is an OBD-II diagnostic trouble code meaning: Turbocharger Boost Control Position Sensor B Performance - Stuck High. Common causes: turbocharger boost control position sensor malfunction, boost control mechanism jammed. Estimated repair cost: $28–111.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$28–111 (est.)

Symptoms

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

Causes

  • Turbocharger boost control position sensor malfunction
  • Boost control mechanism jammed
  • Open or short circuit in the sensor circuit
  • Problems with wiring or connectors
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the sensor wiring and connectors for damage
  2. Check turbocharger boost control position sensor to manufacturer specifications
  3. Check the boost control mechanism for binding or damage.
  4. Replace faulty turbocharger boost control position sensor
  5. Check the engine control unit (ECU) for errors and reprogram it if necessary

Related codes

P259AP259CP259D

Error P259B by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P259B code mean?

P259B is an OBD-II diagnostic trouble code that indicates: Turbocharger Boost Control Position Sensor B Performance - Stuck High

What causes a P259B error code?

The most common causes of P259B include: Turbocharger boost control position sensor malfunction; Boost control mechanism jammed; Open or short circuit in the sensor circuit; Problems with wiring or connectors.

How do I fix a P259B diagnostic trouble code?

To fix P259B: Check the sensor wiring and connectors for damage. Check turbocharger boost control position sensor to manufacturer specifications. Check the boost control mechanism for binding or damage.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P259B?

Do not drive — repair immediately

How much does it cost to fix P259B?

The estimated repair cost for P259B is $28–111. Actual cost depends on your vehicle, location, and labor rates.

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