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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 252 (Engine Control System & Fuel - 4.8L, 5.3L, 6.0L, Or 6.2L - DTC P0230 To DTC P0690) >> DTC P0231, P0232, or P023F >> Circuit/System Verification

Circuit/System Verification

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Ignition ON, command the fuel pump ON and OFF using the scan tool FPCM output control. The fuel pump should turn on and off.

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