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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 P0033-P0035: Turbocharger Bypass Solenoid Valve >> Circuit/System Verification

Circuit/System Verification

  1. Ignition On
  2. Verify a click is heard or felt from the Q40 Turbocharger Bypass Solenoid Valve when commanding the Turbocharger Bypass Solenoid Valve between Active and Inactive with a scan tool.
    • If a click is not heard or felt 

      Refer to Circuit/System Testing

    • If a click is heard or felt 
  3. Verify the circuit status parameters listed below do not display Malfunction when commanding the Turbocharger Bypass Solenoid Valve between Inactive and Active with a scan tool:
    • Turbocharger Bypass Solenoid Valve Control Circuit High Voltage Test Status
    • Turbocharger Bypass Solenoid Valve Control Circuit Open Test Status
    • Turbocharger Bypass Solenoid Valve Control Circuit Low Voltage Test Status
    • If Malfunction is displayed 

      Refer to Circuit/System Testing

    • If Malfunction is not displayed 
  4. 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.
  5. Verify a DTC does not set.
    • If a DTC sets 

      Refer to Circuit/System Testing

    • If a DTC does not set 
  6. All OK
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