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Home >> Cadillac >> 2021 >> CT5 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Controls And Fuel - 3.0L (LGY) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P0033-P0035 or P00C0-P00C2 >> 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 appropriate scan tool control function: Turbocharger/Supercharger Bypass Valve - Increase & Decrease

    Verify the scan tool parameter:

    • Turbocharger/Supercharger Bypass Valve Control Circuit High Test Status = Not Run or Okay
    • Turbocharger/Supercharger Bypass Valve Control Circuit Low Test Status = Not Run or Okay
    • Turbocharger/Supercharger Bypass Valve Control Circuit Open Test Status = Not Run or Okay
    • Turbocharger/Supercharger 2 Bypass Valve Control Circuit High Test Status = Not Run or Okay
    • Turbocharger/Supercharger 2 Bypass Valve Control Circuit Low Test Status = Not Run or Okay
    • Turbocharger/Supercharger 2 Bypass Valve Control Circuit Open Test Status = Not Run or Okay
    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  3. Perform the appropriate scan tool control function: Turbocharger/Supercharger Bypass Valve - Increase & Decrease

    Verify a click can be heard or felt at the following component (s) when the scan tool control function was commanded:

    • Q40A Turbocharger Bypass Valve Solenoid - Bank 1
    • Q40B Turbocharger Bypass Valve Solenoid - Bank 2
    • 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.