Conditions for Running the DTC

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

The BCM must be powered and cannot have B1327-Battery Voltage Low as an active DTC for this DTC to set.
The BCM monitors the voltage of this circuit at all times even when the ignition is in the Off position.
The module voltage must be 9-16 volts.