LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls And Fuel - 2.0L (LTG) - DTC P0335 To DTC P2635 And Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P05CC or P05CE: Cold Start Camshaft Position System >> Circuit/System Verification

Circuit/System Verification

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 impact 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. Verify the engine has the proper oil condition, level, and pressure. Refer to Oil Pressure Diagnosis and Testing .
    • If the oil condition, level, and oil pressure are not correct  

      Repair as necessary

    • If the oil condition, level, and oil pressure are correct  
    2. NOTE:

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

  2. Verify DTC P0010, P0016, P0017, P0018, P0019, P0335, P0336, P0340, P0341, P0345, P0346, P0365, P0366, P0390 or P0391, is not set.
    • If none of the DTCs are set 
  3. Engine Running at normal operating temperature.
  4. Verify the scan tool parameters below are less than 2° in each of the commanded states when commanding the Camshaft Position Actuator from 0-20° and back to 0°.
    • Intake Camshaft Position Variance
    • Exhaust Camshaft Position Variance
    • If 2° or greater 

      Refer to Circuit/System Testing.

    • If less than 2° 
  5. 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.
  6. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • If the DTCs does not set 
  7. All OK.
scientia non olet · About LEMON Manuals