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DTC P0299 - Turbocharger/Supercharger A Underboost Condition

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DTC DESCRIPTION P0299 - TURBOCHARGER/SUPERCHARGER A UNDERBOOST CONDITION

Description:  This DTC sets when the PCM detects that the control effort to maintain the desired boost pressure is 10% greater than the calibrated threshold.
Possible Causes: 
  • Turbocharger vanes sticking
  • Air leak between turbocharger and throttle
  • Charge air cooler (CAC) restriction
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.
Check tubing for obstructions, cracks and incorrect fitting connections.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST KA .