Conditions for Setting the DTC
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
B1517 03
The voltage of the high resolution B+ circuit is less than 11 volts for 2 minutes.
B1517 07
The voltage of the high resolution B+ circuit is greater than 16 volts for 15 seconds.
B1517 5A
The voltage of the high resolution B+ circuit is 2 volts less than the voltage of the BCM B+ circuit for 10 seconds.