Conditions for Running the DTC

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

The ignition is in the Unlock/Accessory, Run, or Crank position.
The system voltage is more than 5.23 volts.
The powertrain relay is commanded ON.
DTC P1682 runs continuously when the above conditions are met.