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 Code (DTC) 37/B1655 could be caused by short to ground, short to battery or open in left seat belt buckle wire harness, left front seat belt buckle switch malfunction or air bag sensor assembly malfunction.
NOTE:
During testing, if DTCs other than DTC 37/B1655 are displayed, disregard them.