DTC P1227 - Wastegate Failed Closed (Over Pressure)

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DTC DESCRIPTION P1227 - WASTEGATE FAILED CLOSED (OVER PRESSURE)

Description:	This DTC sets when the boost pressure is higher than desired.
Possible Causes:	Manifold absolute pressure (MAP) sensor concerns Supercharger bypass actuator stuck closed
Diagnostic Aids:	This DTC is informational only and it may be accompanied by other DTCs. Diagnose all other DTCs first.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST KJ .