LEMON Manuals: Even more car manuals for everyone
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 Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition Off, disconnect the harness connector at the appropriate Q6 Camshaft Position Actuator Solenoid Valve. It may take up to 2 minutes for all vehicle systems to power down.
  2. Test for less than 5Ω between the low reference circuit terminal B and ground.
    • If 5Ω or greater 
    1. Ignition Off, disconnect the harness connector at the K20 Engine Control Module.
    2. Test for less than 2Ω in the low reference circuit end to end.
    • If 2Ω or greater, repair the open/high resistance in the circuit.
    • If less than 2Ω, replace the K20 Engine Control Module.
    • If less than 5Ω 
  3. Ignition On.
    4. NOTE:

    A test lamp must be used for this test. The control circuit is pulled-up to a low current voltage, 1.5-4.5V on the control circuit is normal.

  4. Verify that a test lamp does not illuminate between the control circuit terminal A and ground.
    • If the test lamp illuminates 
    1. Ignition Off, disconnect the harness connector at the K20 Engine Control Module, ignition On.
    2. Test for less than 1V between the control circuit and ground.
    • If 1V or greater, repair the short to voltage on the circuit.
    • If less than 1V, replace the K20 Engine Control Module.
    • If the test lamp does not illuminate 
  5. Verify the test lamp illuminates when commanding the appropriate Camshaft Position Actuator Solenoid Valve On with a scan tool.
    • If the test lamp does not illuminate 
    1. Ignition Off, disconnect the harness connector at the K20 Engine Control Module.
    2. Test for less than 2Ω in the control circuit end to end.
    • If 2Ω or greater, repair the open/high resistance or short to ground in the circuit.
    • If less than 2Ω, replace the K20 Engine Control Module.
    • If the test lamp illuminates 
  6. Ignition Off, remove the Q6 Camshaft Position Actuator Solenoid Valve.
  7. Verify the conditions listed below do not exist with the Q6 Camshaft Position Actuator Solenoid Valve:
    1. Torn, restricted, mis-positioned, or missing screens.
    2. Engine oil leak between the oil sealing lands of the solenoid. Inspect the lands of the solenoid for nicks.
    3. Oil seepage at the solenoid connector.
    • If a condition is found 

      Replace the Q6 Camshaft Position Actuator Solenoid Valve.

    • If a condition is not found 
    8. NOTE:

    After swapping toe solenoids, install jumper wires to the appropriate terminals of the harness connectors and the solenoids.

  8. Ignition Off, swap the Q6 Camshaft Position Actuator Solenoid Valve with the Q6 Camshaft Position Actuator Solenoid Valve that is operating correctly.
  9. Engine idling.
  10. Verify the scan tool Camshaft Position Variance parameter is less than 2° in each of the commanded states when commanding the Camshaft Position Actuator from 0-20° and back to 0° with a scan tool.
    • If 2° or greater 

      Replace the mechanical camshaft position actuator.

    • If less than 2° 
  11. Test or replace the Q6 Camshaft Position Actuator Solenoid Valve.
scientia non olet · About LEMON Manuals