Circuit/System Verification
WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Ignition ON, observe the scan tool Calc. Hybrid Batt. Current parameter. The reading should be between -200 and +200 A, and change with the amount of current draw on the drive motor generator battery.