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P0234 - Turbocharger/Supercharger A Overboost Condition

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DTC DESCRIPTION P0234 - TURBOCHARGER/SUPERCHARGER A OVERBOOST CONDITION

Description:  This DTC sets when the indicated boost pressure is greater than the desired boost pressure by greater than a calibrated threshold.
Possible Causes: 
  • The manifold absolute pressure (MAP) sensor is out of range high
  • Damaged turbocharger actuator
  • Turbocharger vanes sticking
Diagnostic Aids:  The presence of this DTC may indicate that the vehicle is operating in derate mode and may experience a loss of power. After repair, the vehicle may still display a system warning message. Drive the vehicle until the system warning message has cleared from the instrument cluster message center.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST KA .
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