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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Controls And Fuel - 2.4L - DTC P0010 To DTC P0114 (LUK)) >> Diagnostic Information and Procedures >> DTC P0011 or P0014: Camshaft Position System >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
    NOTE:
    • The engine oil level and the oil pressure are critical to the correct operation of the camshaft position actuator system. Verify that the engine has the correct oil level and the correct oil pressure before continuing with this diagnostic.
    • The engine oil condition has a major i MPact on the camshaft actuator system. Debris in the oil can interfere with the camshaft position actuator solenoid and the mechanical camshaft actuator operation. Inspect for dirty or degraded crankcase oil. The engine may require an oil change. Inquire with the customer when the last oil change was performed. You may also monitor the scan tool Engine Oil Life Remaining parameter. Advise the customer an oil change may be required.
  1. Ignition On.
  2. Verify the engine has the correct oil level and pressure. Refer to Oil Pressure Diagnosis and Testing .
    • If the oil level and the oil pressure are not correct  

      Repair as necessary

    • If the oil level and the oil pressure are correct  
    3. NOTE:

    If a crankshaft or camshaft position sensor DTC is set, the scan tool Camshaft Position Actuator output control will not function.

  3. Verify that DTC P0010, P0013, P0016, P0017, P0335, P0336, P0340, P0341, P0365, or P0366 is not set.
    • If none of the DTCs are set 
  4. Engine idling.
  5. Verify the scan tool parameters are less than 2° in each of the commanded states when commanding the Camshaft Position Actuator from 0-20° and back to 0° with the scan tool.
    • Intake Camshaft Position Variance
    • Exhaust Camshaft Position Variance
    • If 2° or greater 

      Refer to Circuit/System Testing.

    • If less than 2° 
  6. Verify that DTC P0011 or P0014 is not set.
    • If any of the DTCs are set 

      Refer to Circuit/System Testing.

    • If none of the DTCs set 
  7. 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.
  8. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • If the DTC does not set 
  9. All OK.
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