DTC B1920/77: Short in Rear Pretensioner Squib RH Circuit; DTC B1921/77: Open in Rear Pretensioner Squib RH Circuit; DTC B1922/77: Short to GND in Rear Pretensioner Squib RH Circuit; DTC B1923/77: Short to B+ in Rear Pretensioner Squib RH Circuit [03/2017 - 04/2020]: Wiring Diagram