Vehicle Body Structures
Seat Belts & Occupant Restraints
Category: Airbags (Advanced Concepts)
Supplemental Restraint System (SRS)
Airbag Handling & Safety
100

This engineered deformation strategy converts kinetic energy into plastic deformation to protect the passenger compartment.

What are crumple zones?

100

This restraint component deploys during a collision to remove slack from the seat belt system.

What is a seat belt pretensioner?

100

This type of airbag deploys using gases generated within milliseconds after crash detection.

What is a pyrotechnic airbag?

100

The Airbags is intended to function in conjunction with, not as a replacement for, this primary safety system.

What are seat belts?

100

This safety step must always be completed before performing any SRS or airbag service.

What is disconnecting the vehicle battery?

200

This structural concept maintains occupant survival space by utilizing high‑strength steel or boron steel components.

What is a rigid safety cell (or passenger cell)?

200

Most modern pretensioners are actuated using this type of explosive device.

 What is a pyrotechnic charge?

200

These airbags are mounted in the seat or door trim and are designed to protect the thorax and pelvis.

What are side‑impact airbags?

200

This electronic module stores crash data and controls airbag and pretensioner deployment.

What is the airbag control module (ACM)? (SRS Control Unit)

200

After battery disconnection, manufacturers require waiting this amount of time to allow reserve energy to discharge.

What is the specified capacitor discharge time (typically 1-3 minutes)?

300

These ultra‑high‑strength structural members provide roof‑crush resistance and frontal offset impact integrity.

What are reinforced A‑ and B‑pillars?

300

This seat belt feature limits the maximum force applied to the occupant’s chest during a collision.

What is a load limiter?

300

Modern Vehicle Use This Type Of Airbags

What Is a 2 Stage (Sqib) Airbag?

300

These sensors measure sudden changes in velocity to determine if deployment criteria have been met.

What are accelerometers (or crash sensors)?

300

This electrical testing practice is prohibited on airbag circuits due to the risk of accidental deployment.

What is probing SRS circuits with a test light or ohmmeter?

400

 This body construction method eliminates a separate frame, improving torsional rigidity and crash energy management.

What is unibody (monocoque) construction?

400

In advanced restraint systems, belt deployment timing is coordinated with these modules for optimized occupant protection.

What is the airbag control module (or SRS control unit)?

400

Deployment thresholds for airbags are calculated using vehicle deceleration data expressed in this unit.

 What is G‑force?

400

After airbag deployment, this type of diagnostic trouble code is typically stored and cannot be cleared without repair.

What is a hard fault code?

400

This Practice Should Always Be Follow When Placing and Airbag on a Work Bench.

What is Airbag Facing upwards and on a Cloth?

500

The Passenger Cell in a Modern Unibody Is Made Up of This Type of Material.

What is High Strength Steel?

500

Seat belt systems interact with these sensors to adjust deployment strategies based on occupant size or position.

What are occupant classification or position sensors?

500

Advanced airbag systems may deploy with variable force depending on this real‑time data characteristic.

What is crash severity?

500

Industry safety standards require disabling this power source and waiting a specified time before SRS service.

What is the vehicle battery and reserve energy system?

500
The Type of Connector a Airbag has.

What is a Shorting Bar Connector?