Possible Causes
WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostic Trouble Codes (DTCs) 56/B1825, 56/B1826, 56/B1827 or 56/B1828 could be caused by a short to ground, open, short or short to battery in right side air bag squib circuit, squib malfunction or air bag sensor assembly malfunction.
NOTE:
During testing, if DTCs other than DTC 56/B1825, 56/B1826, 56/B1827 or 56/B1828 are displayed, disregard them.