P0234 - Turbocharger/Supercharger A OVERBOOST Condition - DTC Chart

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P0234 - TURBOCHARGER/SUPERCHARGER A OVERBOOST CONDITION - DTC CHART

Description: This DTC sets when the actual TCBP value is greater than the desired TCBP value by 27.6 kPa (4 psi) or more for 5 seconds, indicating an over boost 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 restrictions, 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 .