24 Section 1 Introduction to Automotive Technology
Front
air bags
Side-impact
air bags
Headlights
Computer
Seat
belt
sensors
Taillight
Door
speaker
Rear speakers
Display screens
Air bags
Figure 1-24. Various safety systems are used on modern vehicles to protect both the driver and the passengers. This vehicle is
equipped with both front and side-impact air bags. (Audi America)
Figure 1-25. The lighting and instrumentation systems are now controlled and connected with the body computer separate from
the engine or drive train control computers. Wheel speed sensors tell when to re-aim the headlights, sound an alarm through the
stereo speakers, energize the turn signals, put a hot engine warning display up in the dash, or tell you the car’s present location on
a detailed map. These complete electronic networks are fully explained in later chapters.