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Infiniti
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2015
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QX50 Base, AWD
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Repair and Diagnosis
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Restraints
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Restraints Control Systems
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SRS Airbag Control System
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DTC/Circuit Diagnosis
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DTC B1421: Frontal Collision Detection
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DTC Logic
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DTC Detection Logic
DTC Detection Logic
DTC
CONSULT screen items
(Trouble diagnosis content)
DTC detecting condition
Possible cause
B1421-00
FRONTAL COLLISION
(Firing Record, Frontal)
Driver air bag, passenger air bag, seat belt pre-tensioner and lap pre-tensioner are deployed
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