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Home >> Chevrolet >> 2006 >> Uplander Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Controls - 3.9L - DTC P0011 To P0420) >> DTC P0230 >> Circuit/System Verification

Circuit/System Verification

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With the ignition ON, engine OFF, command the fuel pump relay ON and OFF several times using the scan tool output control function. You should either hear or feel the relay click with each command.