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Home >> Buick >> 2011 >> Regal CXL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.4L - DTC P0300 Through DTC P0650 >> DTC P0601-P0604, P0606, or P062F (Fuel Pump Control Module) >> Circuit/System Description

Circuit/System Description

The internal fault detection is handled inside the fuel pump control module. No external circuits are involved.