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Home >> Buick >> 2014 >> Verano Premium, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> DTC P0521: Engine Oil Pressure Sensor >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the scan tool Engine Oil Pressure parameter is Low.
    • If not Low 

      Refer to Circuit/System Testing.

    • If Low 
  3. Engine running.
  4. Verify the scan tool Engine Oil Pressure parameter is OK.
    • If not OK 

      Refer to Circuit/System Testing.

    • If OK 
  5. All OK.
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