wiring FORD FIESTA 2012 Owners Manual

PERSONAL SAFETY SYSTEM™
The Personal Safety System provides an improved overall level of frontal
crash protection to front seat occupants and is designed to help further
reduce the risk of airbag-related injuries. The system is able to analyze
different occupant conditions and crash severity before activating the
appropriate safety devices to help better protect a range of occupants in
a variety of frontal crash situations.
Your vehicle’s Personal Safety System consists of:
•Driver and passenger dual-stage airbag supplemental restraints.
•Front safety belts with pretensioners, energy management retractors,
and safety belt usage sensors.
•Driver’s seat position sensor.
•Front crash severity sensor.
•Front passenger sensing system.
•“Passenger airbag off” or “pass airbag off” indicator lamp.
•Restraints Control Module (RCM) with impact and safing sensors.
•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 work?
The Personal Safety System can adapt the deployment strategy of your
vehicle’s safety devices according to crash severity and conditions. A
collection of crash sensors provides information to the Restraints Control
Module (RCM). During a crash, the RCM may activate the safety belt
pretensioners and/or either none, one, or both stages of the dual-stage
airbag supplemental restraints based on crash severity and 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 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.
Seating and Safety Restraints
156
2012 Fiesta(fie)
Owners Guide, 3rd Printing
USA(fus)
ProCarManuals.com

•a readiness light and tone
•and the electrical wiring which connects the components
•Side curtain airbag system. Refer toSide curtain airbag systemlater
in this chapter.
•Front passenger sensing system. Refer toFront passenger sensing
systemlater in this chapter.
•“Passenger airbag off” or “pass airbag off” indicator lamp. Refer to
Front passenger sensing systemlater in this chapter.
•Driver’s side knee airbag module.
The diagnostic module monitors its own internal circuits and the
supplemental airbag electrical system wiring (including the impact
sensors), the system wiring, the airbag system readiness light, the airbag
backup power, the airbag ignitors and safety belt pretensioners.
Knee airbag system (driver’s side only)
The knee airbag is located under the instrument panel. The system
works along with the driver’s front airbag to help reduce injury to the
legs. When the driver’s airbag activates in a collision, the knee airbag
deploys from under the instrument panel.
As with front and side airbags, it is important to be properly seated and
restrained to reduce the risk of death or serious injury.
Front passenger sensing system
The front passenger sensing system is designed to meet the regulatory
requirements of Federal Motor Vehicle Safety Standard (FMVSS) 208
and is designed to disable (will not inflate) the front passenger’s frontal
airbag under certain conditions.
The front passenger sensing system works with sensors that are part of
the front passenger’s seat and safety belt. The sensors are designed to
detect the presence of a properly seated occupant and determine if the
front passenger’s frontal airbag should be enabled (may inflate) or
disabled (will not inflate).
The front passenger sensing system will disable (will not inflate) the
front passenger’s frontal airbag if:
•the front passenger seat is unoccupied, or has small/medium objects in
the front seat,
•the system determines that an infant is present in a rear-facing infant
seat that is installed according to the manufacturer’s instructions,
Seating and Safety Restraints
174
2012 Fiesta(fie)
Owners Guide, 3rd Printing
USA(fus)
ProCarManuals.com

SNOW TIRES AND CHAINS
WARNING:Snow tires must be the same size, load index, speed
rating as those originally provided by Ford. Use of any tire or
wheel not recommended by Ford can affect the safety and
performance of your vehicle, which could result in an increased risk of
loss of vehicle control, vehicle rollover, personal injury and death.
Additionally, the use of non-recommended tires and wheels could
cause steering, suspension, axle or transfer case/power transfer unit
failure.
Note:The suspension insulation and bumpers will help prevent vehicle
damage. Do not remove these components from your vehicle when using
snow tires and chains.
The tires on your vehicle may have all-weather treads to provide traction
in rain and snow. However, in some climates, you may need to use snow
tires and chains. Use chains on the tires only in an emergency or if the
law requires them.
Follow these guidelines when using snow tires and chains:
•If possible, avoid fully loading your vehicle.
•Chains may damage aluminum wheels.
•Use SAE Class S chains with 195/65R15 or 215/55R16 tires only; do
not use tire chains with any other size tires.
•Install chains securely, verifying that the chains do not touch any
wiring, brake lines or fuel lines.
•Drive cautiously. If you hear the chains rub or bang against your
vehicle, stop and retighten the chains. If this does not work, remove
the chains to prevent damage to your vehicle.
•Remove the tire chains when they are no longer needed. Do not use
tire chains on dry roads.
VEHICLE LOADING
This section will guide you in the proper loading of your vehicle to keep
your loaded vehicle weight within its design rating capability. Properly
loading your vehicle will provide maximum return of vehicle design
performance. Before loading your vehicle, familiarize yourself with the
following terms for determining your vehicle’s weight ratings from the
vehicle’s Tire Label or Safety Compliance Certification Label:
Base Curb Weight– is the weight of the vehicle including a full tank of
fuel and all standard equipment. It does not include passengers, cargo, or
optional equipment.
Tires, Wheels and Loading
224
2012 Fiesta(fie)
Owners Guide, 3rd Printing
USA(fus)
ProCarManuals.com