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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 398 (Engine Controls And Fuel - 6.2L (LT4) - Diagnostic Information And Procedures (1 Of 3)) >> Diagnostic Information and Procedures >> DTC P0010, P0011, P2088, or P2089 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE:

    This diagnostic procedure will reference the component code called out in the schematic, if applicable.The following are the same components, even though they are named differently:

    • Q6 Camshaft Position Actuator Solenoid Valve = Camshaft Position Actuator Magnet
    • Camshaft Position Actuator Solenoid Valve = Camshaft Oil Control Spool Valve
  1. Ignition - On/Vehicle - In Service Mode
    2. NOTE:

    If a crankshaft or camshaft position sensor DTC is set, the scan tool camshaft position actuator output control will be disabled.

  2. Verify DTC P0335, P0336, P0340, P0341 is not set.
    • Go to next step: If none of the DTCs are set 
    3. NOTE:
    • The engine oil level and the oil pressure are critical to the correct operation of the system.
    • Engine oil condition has a major impact on the camshaft actuator system.
  3. Verify the following conditions do not exist:
    • If a condition exists 

      Repair as necessary

    • Go to next step: If no condition exists 
  4. Engine - Idling
  5. Perform the scan tool control function: Intake/Single Camshaft Position Actuator Position - From 0 to 20° and back to 0°

    Verify the scan tool parameter:

    • Intake/Single Camshaft Position Actuator Control Circuit High Test Status = Not Run or Okay
    • Intake/Single Camshaft Position Actuator Control Circuit Low Test Status = Not Run or Okay
    • Intake/Single Camshaft Position Actuator 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 
  6. Perform the scan tool control function: Intake/Single Camshaft Position Actuator Position - From 0 to 20° and back to 0°

    Verify the scan tool parameter: Intake/Single Camshaft Position Variance = Less than 2° - During each of the commanded states

    • If 2° or greater 

      Refer to: Circuit/System Testing

    • Go to next step: If less than 2° 
  7. Ignition - On/Vehicle - In Service Mode & Engine - Off
  8. Perform the scan tool control function: Intake/Single Camshaft Position Actuator - On

    Verify the scan tool parameter:

    • Intake/Single Camshaft Position Actuator Control Circuit High Test Status = Not Run or Okay
    • Intake/Single Camshaft Position Actuator Control Circuit Low Test Status = Not Run or Okay
    • Intake/Single Camshaft Position Actuator Control Circuit Open Test Status = Not Run or Okay
    • Perform the action while monitoring the parameter:
    • Wiggle the harness and connector: K20 Engine Control Module
    • Wiggle the harness and connector: Q6 Camshaft Position Actuator Solenoid Valve
    • If not the specified state 

      Repair as necessary - Wiring/Terminal(s)/Electrical Connector(s)

    • Go to next step: If the specified state 
  9. 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 is not set 
  10. All OK.
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