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 BECM Hybrid Batt. Pack Resistance parameter. The reading should be less than the resistance values specified in Drive Motor Generator Battery End of Life Resistance .

If greater than the specified range, replace the drive motor battery assembly.