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Home › Saturn › 2009 › Sky Red Line, Standard › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - 2.0L - DTC P0010 To DTC P0238 › DTC P0011 or P0014 › Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the appropriate Camshaft Position Actuator Solenoid Valve.
  2. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal A and ground.
    • If the test lamp does not illuminate, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition circuit fuse is open, test all the components connected to the ignition circuit and replace as necessary.
  3. Connect a DMM, set on the diode setting, between the control circuit terminal B and ground. The voltage should be greater than 2 V.
    • If the DMM displays OL, test the control circuit for a short to voltage or an open/high resistance. If the circuit/connections test normal, replace the Engine Control Module.
    • If less than the specified value, test the control circuit for a short to ground. If the circuit tests normal, replace the Engine Control Module.
  4. Command the Camshaft Position Actuator Solenoid Valve ON and OFF with a scan tool. The DMM should transition from greater than 2 V when commanded OFF to less than 1 V, when commanded ON.
    • If the circuit voltage does not correspond to the specified values, replace the Engine Control Module.
  5. Remove the Camshaft Position Actuator Solenoid Valve. Inspect the Camshaft Position Actuator Solenoid Valve and mounting area for the following conditions:
    • For a torn, restricted, mis-positioned, or missing screens at the Camshaft Position Actuator Solenoid Valve
    • For engine oil leaks between the oil sealing lands of the Camshaft Position Actuator Solenoid Valve. Inspect the lands of the Camshaft Position Actuator Solenoid Valve for nicks
    • For oil seepage at the Camshaft Position Actuator Solenoid Valve connector
    • If a condition is found, replace Camshaft Position Actuator Solenoid Valve.
  6. Ignition OFF, swap the appropriate Camshaft Position Actuator Solenoid Valve with a Camshaft Position Actuator Solenoid Valve that is operating correctly.
  7. Engine idling. Command the appropriate Camshaft Position Actuator from 0 degrees to 20 degrees and back to zero while observing the appropriate scan tool Camshaft Position Variance parameters. The Camshaft Position Variance should be less than 2 degrees in each of the commanded states
    • If greater than the specified value, replace the mechanical camshaft position actuator.
  8. If all circuits/connections test normal, test or replace the Camshaft Position Actuator Solenoid Valve.
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