LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls And Fuel - 2.0L (LTG) - DTC P0010 To DTC P0333 >> Diagnostic Information and Procedures >> DTC P0191, P0192, or P0193: Fuel Rail Pressure Sensor >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify DTC P0641 is not set.
    • If the DTC is not set 
  3. Engine idling.
  4. Verify DTC P0191, P0192 or P0193 is not set.
    • If any of the DTCs are set 

      Refer to Circuit/System Testing.

    • If none of the DTCs are set 
  5. 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.
  6. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • If the DTC does not set 
  7. All OK.
scientia non olet · About LEMON Manuals