Code No. P0234: Turbocharger Over Boost


DIAGNOSIS CONTENT



TROUBLE JUDGMENT


Check Condition
  • The engine is running.
Judgment Criterion
  • The governor deviation falls below the lower limit for the specified time.

FAIL SAFE FUNCTION



  • Boost pressure control is prohibited.
  • EGR control is prohibited.
  • Torque control is operated.

PROBABLE CAUSE



  • Failed boost pressure control system