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Home >> GMC >> 2020 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Controls And Fuel - 1.5L (LYX) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P0243, P0245, or P0246 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition - On / Vehicle - In Service Mode
  2. Perform the scan tool control function : Turbocharger Wastegate Solenoid Valve - Increase & Decrease

    Verify the scan tool parameter :

    • Turbocharger Wastegate Solenoid Valve Control Circuit Low Voltage Test Status = OK or Not Run
    • Turbocharger Wastegate Solenoid Valve Control Circuit Open Test Status = OK or Not Run
    • Turbocharger Wastegate Solenoid Valve Control Circuit High Voltage Test Status = OK or Not Run
    • If not the specified state 

      Refer to : Circuit/System Testing

    • Go to next step : If the specified state 
  3. Perform the scan tool control function : Turbocharger Wastegate Solenoid Valve - Increase & Decrease

    Verify a click can be heard or felt at the component when the scan tool control function was commanded : Q42 Turbocharger Wastegate Solenoid Valve

    • If a click cannot be heard or felt 

      Refer to : Circuit/System Testing

    • Go to next step : If a click can be heard or felt 
  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.

    Verify the DTC does not set.

    • If the DTC sets 

      Refer to : Circuit/System Testing

    • Go to next step : If the DTC does not set 
  5. All OK.
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