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Home >> Chevrolet >> 2012 >> Cruze Eco, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 126 (Engine Controls And Fuel - 2.0L - Troubleshooting And Diagnosis) >> Fuel Pump Electrical Circuit Diagnosis >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE: Fuel pump DTCs may set when using the Fuel Pump Relay output control.
  1. Ignition ON, command the fuel pump relay ON with a scan tool. You should hear the fuel pump operate for 2-3 seconds and then turn OFF.
  2. If the vehicle passes the Circuit/System Verification Test, then operate the vehicle within the conditions for running DTC P0627, P0628, and P0629. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records data.
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