DTC B1830/57: Short in Curtain Shield Squib RH Circuit; DTC B1831/57: Open in Curtain Shield Squib RH Circuit; DTC B1832/57: Short to GND in Curtain Shield Squib RH Circuit; DTC B1833/57: Short to B+ in Curtain Shield Squib RH Circuit [08/2013 - ]: Wiring Diagram
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.