Ford 2007 Expedition v.2 Manuel d'utilisateur télécharger pdf (Page 177)

• Front safety belts with pretensioners, energy management retractors,

and safety belt usage sensors.

• Driver’s seat position sensor.

• Front crash severity sensor.

• Restraints Control Module (RCM).

• Restraint system warning light and back-up tone.

• The electrical wiring for the airbags, crash sensor(s), safety belt

pretensioners, front safety belt usage sensors, driver seat position

sensor, and indicator lights.

How does the Personal Safety System姟 work?

The Personal Safety System娂 can adapt the deployment strategy of your

vehicle’s safety devices according to crash severity and occupant

conditions. A collection of crash and occupant sensors provides

information to the Restraints Control Module (RCM). During a crash, the

RCM activates the safety belt pretensioners and/or either one or both

stages of the dual-stage airbag supplemental restraints based on crash

severity and occupant conditions.

The fact that the pretensioners or airbags did not activate for both front

seat occupants in a collision does not mean that something is wrong with

the system. Rather, it means the Personal Safety System娂 determined

the accident conditions (crash severity, belt usage, etc.) were not

appropriate to activate these safety devices. Front airbags are designed

to activate only in frontal and near-frontal collisions, not rollovers,

side-impacts, or rear-impacts unless the collision causes sufficient

longitudinal deceleration.

Driver and passenger dual-stage airbag supplemental restraints

The dual-stage airbags offer the capability to tailor the level of airbag

inflation energy. A lower, less forceful energy level is provided for more

common, moderate-severity impacts. A higher energy level is used for

the most severe impacts. Refer to Airbag supplemental restraints

section in this chapter.

Front crash severity sensor

The front crash severity sensor enhances the ability to detect the

severity of an impact. Positioned up front, it provides valuable

information early in the crash event on the severity of the impact. This

allows your Personal Safety System娂 to distinguish between different

levels of crash severity and modify the deployment strategy of the

dual-stage airbags and safety belt pretensioners.

2007 Expedition (exd)

Owners Guide (post-2002-fmt)

USA (fus)

Seating and Safety Restraints

177

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Ford 2007 Expedition v.2 Manuel d'utilisateur Page 177

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Ford 2007 Expedition v.2 Manuel d'utilisateur Page 177

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