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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Controls And Fuel - 2.4L - DTC P0114 To DTC P0604) >> Diagnostic Information and Procedures >> DTC P018B-P018D: Fuel Pressure Sensor (Fuel Pump Power Control Module) >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition ON.
  2. Verify DTC U0074 or U18A2 is not set or stored in history.
    • If DTC U0074 or U18A2 is not set or stored in history 
  3. Engine running.
  4. Verify the scan tool Fuel Pressure Sensor voltage parameter is between 0.2-4.8V.
    • If not between 0.2-4.8V 

      Refer to Circuit/System Testing.

    • If between 0.2-4.8V 
  5. All OK.