DTC B1900-73: Short in Front Pretensioner Squib RH Circuit; DTC B1901-73: Open in Front Pretensioner Squib RH Circuit; DTC B1902-73: Short to GND in Front Pretensioner Squib RH Circuit; DTC B1903-73: Short to B+ in Front Pretensioner Squib RH Circuit [12/2012 - ]: Wiring Diagram

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.