Possible Causes
WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
DTC 81/B1162 could be caused by a short to ground in Yellow/Violet (circuit ICR+) and Yellow/Orange (circuit ICR-) wires in right-side head impact air bag module squib circuit, right-side head impact air bag module squib malfunction or air bag sensor assembly malfunction.
NOTE:
During testing, if DTCs other than DTC 81/B1162 are displayed, disregard them.