Ford 2004 F-150 v.5 Manuel d'utilisateur télécharger pdf (Page 105)

• Restraints Control Module (RCM) with impact and safing sensors.

• Restraint system warning light and back-up tone.

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

pretensioners, front safety belt usage sensors, driver seat position

sensor, and indicator lights.

How does the personal safety system work?

The Personal Safety System can adapt the deployment strategy of your

vehicle’s safety devices according to crash severity and occupant

classification and 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

none, one, or both stages of the dual-stage air bag supplemental

restraints based on crash severity and occupant classification and

conditions.

The fact that the pretensioners or air bags 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 determined the

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

appropriate to activate these safety devices. Front air bags and

pretensioners 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 air bag supplemental restraints

The dual-stage air bags offer the capability to tailor the level of air bag

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 Air bag 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 to distinguish between different

levels of crash severity and modify the deployment strategy of the

dual-stage air bags and safety belt pretensioners.

2004 F150 (f12)

Owners Guide (post-2002-fmt)

USA English (fus)

Seating and Safety Restraints

105

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Ford 2004 F-150 v.5 Manuel d'utilisateur Page 105