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Focused reference
Adjacent B-codes, without overcalling the fault
These neighboring entries are starting points, not component verdicts. Confirm the manufacturer- and VIN-specific SRS definition before inspecting or replacing anything.
Usually points to a passenger frontal Stage 4 or staged-restraint branch; the exact circuit varies by manufacturer and VIN.
Open entryUsually points to a driver frontal Stage 5 or staged-restraint branch; confirm the VIN-specific definition before naming a part.
Open entryThe standardized label identifies a monitored passenger frontal Stage 1 deployment-control branch; exact hardware, test procedure, and failure point vary by manufacturer and VIN.
Open entryMay indicate a monitored passenger frontal Stage 2 deployment-control branch; confirm the VIN-specific circuit before naming an inflator, harness, occupant input, crash-data, or module fault.
Open entryKeep tracing the restraint lane
Related codes for airbag deployment research
B0010 and B0011 are nearby research entries for passenger frontal deployment stages, not alternate names for the B0012 fault. Use the vehicle-specific definition to separate each code's circuit and diagnosis.