Conditions for Running the DTC: P060D

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0606 is not set.
The ignition switch is in the Unlock, Accessory, Run, or Crank position.
The system voltage is more than 5.23 volts.
DTC P060D runs continuously when the above conditions are met.