According the the module spec, the air bag module won't log a code for low voltage until it drops below 9V. Also, it indicates that it does not flash the light for low voltage.

Granted, this is the spec. I cannot say how well this module follows its own spec. :rolleyes:

1999 Contour SE Sport MTX75 T-Red/Grey
Audio: Pioneer DEH-7400MP (MP3 CD), Pioneer TS-A6857 front & rear, PPI PCX-250, Infinity Perfect 10.1
Other: cup holders, cargo net, Blizzaks, Potenza RE950s