P0234 - Turbocharger/Supercharger A OVERBOOST Condition

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P0234 - TURBOCHARGER/SUPERCHARGER A OVERBOOST CONDITION

Description: This DTC sets when the actual TCBP PID value is greater than the desired TCBP PID value by 27.6 kPa (4 psi) or more for 5 seconds. A maximum TCBP PID reading during engine operation indicates an overboost condition.
Possible Causes: Damaged turbocharger (TC) wastegate regulating valve solenoid Damaged wastegate adjusting rod TC wastegate regulating solenoid valve stuck Wastegate stuck closed Wastegate control hose open or plugged Incorrect wastegate adjustment
Diagnostic Aids: Check tubing for obstructions, cracks and incorrect fitting connections. Check the turbocharger wastegate regulating valve solenoid for correct operation.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST HN: TURBOCHARGER SYSTEM .