Where are pre-tensioners that use a cable to tighten the belt typically located?

Where are pre-tensioners that use a cable to tighten the belt typically located?

• A. Both Buckle Side and Lower portion of the B-Post
• B. Front Door
• C. Buckle Side
• D. Roof

Answer: (A)

Pre-tensioners that tighten the belt with a cable are part of the belt’s restraint path and are typically mounted at both ends of that path. In most vehicles, you’ll find a cable-driven pretensioner at the buckle side and another at the lower portion of the B-pillar. This setup lets the system yank the belt tight from both the buckle end and the pillar end, removing slack quickly during a crash to keep the occupant restrained properly. The front door area and the roof aren’t standard locations for these cable-driven pretensioners, which is why those options aren’t correct.

Pre-tensioners that tighten the belt with a cable are part of the belt’s restraint path and are typically mounted at both ends of that path. In most vehicles, you’ll find a cable-driven pretensioner at the buckle side and another at the lower portion of the B-pillar. This setup lets the system yank the belt tight from both the buckle end and the pillar end, removing slack quickly during a crash to keep the occupant restrained properly. The front door area and the roof aren’t standard locations for these cable-driven pretensioners, which is why those options aren’t correct.