Circuit/System Verification
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.
Ignition ON, engine OFF, observe and record the scan tool Hybrid Battery Pack Calculated Volts and Hybrid Battery Terminal parameters. The readings should be between 198 V and 320 V, and should be within 50 V of each other.