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Home >> Ford >> 2006 >> Focus ZX4 ST >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P0234: Turbocharger/Supercharger A OVERBOOST Condition

DTC P0234: Turbocharger/Supercharger A OVERBOOST Condition

P0234 - TURBOCHARGER/SUPERCHARGER A OVERBOOST CONDITION

Description:  The powertrain control module (PCM) disables (bypasses) the supercharger boost and sets a DTC to prevent damaging the powertrain (engine or transmission) during potentially harmful operating conditions.
Possible Causes: 
  • Engine over temperature
  • Ignition misfire exceeds the calibrated threshold
  • Fuel or fuel system concern.
  • High or low IAT2 sensor reading.
  • Damaged IAT2 sensor
Diagnostic Aids:  Check for other DTCs accompanying the P0234, or check appropriate and available PIDs related to possible causes.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test KJ .
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