Conditions for Running the DTC

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0010, P0016, P0017, P0018, P0019, P0335, P0336, P0340, P0341, P0345, P0346, P0365, P0366, P0390, or P0391 are not set.
The system voltage is between 11-18 volts.
The engine is running.
The ECM has enabled the CMP actuator and commanded greater than 0 degrees.
DTC P0011, P0014, P0021, P0024 runs continuously when the above conditions are met.