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Home >> Cadillac >> 2017 >> XT5 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls And Fuel - 3.6L (LGX) - P0449 To DTC P3436 And Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P12A6: Fuel Pump Driver Control Module Enable Circuit Performance >> Circuit/System Verification

Circuit/System Verification

  1. Ignition On
  2. Verify the scan tool parameter:
    • Fuel Pump Speed Output Circuit High Voltage Test Status=OK
    • Fuel Pump Speed Output Circuit Low Voltage Test Status=OK
    • Fuel Pump Speed Output Circuit Open Test Status=OK
    • If not the specified state 

      Refer to: Circuit/System Testing

    • If the specified state 
  3. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
  4. Verify the DTC does not set.
    • If the DTC sets 

      Refer to: Circuit/System Testing

    • If the DTC is not set 
  5. All OK.
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