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Diagnose/P0235
P0235Medium SeverityEngine

Turbocharger Boost Sensor A Circuit Malfunction

What This Means

The turbo boost pressure sensor circuit has malfunctioned. This sensor monitors the actual boost pressure produced by the turbocharger.

Common Symptoms

  • Loss of boost
  • Check engine light on
  • Reduced power
  • Turbo may not engage properly

Common Causes

  • Faulty boost pressure sensor
  • Wiring damage
  • Connector corrosion
  • Vacuum line leak
  • PCM circuit failure

Estimated Repair Cost

$150 – $600
Parts and labor (varies by vehicle and location)
Difficulty:Moderate

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For informational purposes only. Diagnostic trouble codes are starting points for diagnosis, not definitive answers. Always consult a certified mechanic for proper diagnosis and repair. Estimated costs vary by vehicle, location, and shop rates.