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Home >> Cadillac >> 2007 >> CTS Base, 3.6 7, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 384 (Engine Controls And Fuel - 4.4L - DTC P0171 To DTC 00700) >> DTC P0230 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2007 Cadillac XLR. However, it is still accessible from the selected car via links, so may be relevant.

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.