Conditions For Clearing DTC
WARNING: This page is about a different car, the 2003 Oldsmobile Aurora and 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
The DTC B1513 clears as a current status when the voltage is greater than 10.5 volts for 30 seconds with the engine running.
The DTC B1514 clears as a current status when the voltage falls below 16.2 volts for 30 seconds with the engine running.