OBD Guide
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P25A1

Turbocharger B Boost Control Position At High Limit

P25A1 is an OBD-II diagnostic trouble code meaning: Turbocharger B Boost Control Position At High Limit. Common causes: turbocharger control solenoid valve malfunction, jamming of the mechanism for changing the turbine geometry. Estimated repair cost: $28–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–167 (est.)

Symptoms

  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine operation at high speeds
  • Check Engine Light Illuminates
  • Noises from the turbocharger

Causes

  • Turbocharger control solenoid valve malfunction
  • Jamming of the mechanism for changing the turbine geometry
  • Open or short circuit in control circuit
  • Contamination or wear of turbocharger components
  • Problems with vacuum hoses or connections

How to Fix

  1. Check the condition of the turbocharger control solenoid valve
  2. Inspect the mechanism for changing the turbine geometry for jamming
  3. Check the integrity of the control circuit and connections
  4. Clean or replace turbo components as necessary
  5. Check vacuum hoses and connections for leaks

Related codes

P2562P2563P2564

Error P25A1 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P25A1 code mean?

P25A1 is an OBD-II diagnostic trouble code that indicates: Turbocharger B Boost Control Position At High Limit

What causes a P25A1 error code?

The most common causes of P25A1 include: Turbocharger control solenoid valve malfunction; Jamming of the mechanism for changing the turbine geometry; Open or short circuit in control circuit; Contamination or wear of turbocharger components.

How do I fix a P25A1 diagnostic trouble code?

To fix P25A1: Check the condition of the turbocharger control solenoid valve. Inspect the mechanism for changing the turbine geometry for jamming. Check the integrity of the control circuit and connections. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P25A1?

Yes, but get it checked soon

How much does it cost to fix P25A1?

The estimated repair cost for P25A1 is $28–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat