Conditions for Setting the DTC
WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
B1453 01
The RUN, ON, and START circuits are greater than 2.5 volts.
B1453 06
The RUN, ON, and START circuits are less than 2.5 volts.