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Home >> Buick >> 2016 >> Cascada Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Controls And Fuel - 1.6L (LWC) - DTC P0300 To DTC P2635 And Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P163A: Control Module Fuel Pressure Regulator 1 >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify that no other DTCs are set.
    • If no other DTCs are set 
  3. Verify that DTC P163A is not set.
    • If the DTC is set 

      Refer to Circuit/System Testing.

    • If the DTC is not set 
  4. Operate the vehicle within the Conditions for Running the DTC. It may be helpful to operate the vehicle within the conditions identified from the Freeze Frame/Failure Records data.
  5. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • If the DTC does not set 
  6. All OK.
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