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Subaru
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2019
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BRZ Limited, Automatic Trans
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Repair and Diagnosis (Single Page)
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Restraints
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Air Bag, SRS
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Air Bag System (Diagnostics)
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SRS Airbag System
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DTC B1903: Short In Front P/T RH (To +B)
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Circuit description
Circuit description
DTC No.
DTC detected item
Faulty part
B1903
Seat belt pretensioner RH circuit is shorted to power supply.
Seat belt pretensioner RH is faulty.
Pretensioner harness RH is faulty.
Airbag control module is faulty.
Seat belt pretensioner RH
Airbag control module
Airbag rear harness