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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1988 (Engine Controls And Fuel - 2.4L - DTC P0010 To DTC P0315) >> DTC P0201, P0202, P0203, or P0204 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine idling, observe the following control circuit status parameters for each fuel injector:
    • INJ Ckt Short Gnd Test Status
    • INJ Ckt Open Test Status
    • INJ Ckt Short Volts Test Status

      Each parameter should display OK or Not Run.

  2. Engine running, observe the DTC information with a scan tool. DTCs P0201, P0202, P0203, or P0204 should not set.
  3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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