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: Wiring Diagram
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