Possible Causes
WARNING: This page is about a different car, the 2002 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
DTC 48/B0116 could be caused by a open in Yellow/Red (circuit SFL+) or Yellow/Green (circuit SFL-) wires in side air bag squib circuit, side air bag squib malfunction or air bag sensor assembly malfunction.
NOTE:
During testing, if DTCs other than DTC 48/B0116 are displayed, disregard them.