Seat belt tensioner igniter 1 (N153 for driver side and N154 for passenger side) and belt force limiter (G551 for driver side and G552 for passenger side) are located in the seat belt retractor assembly, while seat belt tensioner igniter 2 (N297 for driver side and N298 for passenger side) is located in the seat belt end fitting. The connector for N297/N298 can be accessed by removing B-pillar trim and pulling back carpet slightly.
