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Home >> Chevrolet >> 2011 >> Impala LS, 3.9 M >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (Engine Controls And Fuel - 3.5L - DTC P0010 Through DTC P0340) >> DTC P0230 >> Circuit/System Verification

Circuit/System Verification

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IMPORTANT: An open or a short to voltage in the control circuit will cause both the Ckt Open Test Status and the Ckt Short Volts Test Status parameters to display Fault.

Ignition ON, command the fuel pump relay ON and OFF with a scan tool while observing the following control circuit status parameters: