Possible Causes
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
DTC 83/B1160 could be caused by a short between Yellow/Violet (circuit ICR+) and Yellow/Orange (circuit ICR-) wires in right head impact air bag module squib circuit, right head impact air bag module squib malfunction or air bag sensor assembly malfunction.
NOTE:
During testing, if DTCs other than DTC 83/B1160 are displayed, disregard them.