Chrysler New Yorker. Manual - part 97
DESCRIPTION AND OPERATION
AIRBAG CONTROL MODULE
The Airbag Control Module (ACM) contains the
accelerometer and energy reserve capacitor. The
ACM is mounted on the tunnel floor pan, forward of
the center console. The accelerometer is located
inside the ACM. The accelerometer provides confir-
mation of a crash, discriminating severity. The ACM
monitors the system to determine the system readi-
ness. The ACM ma store sufficient energy to deploy
the airbags for only two minutes after the battery is
disconnected. The ACM contains on-board diagnos-
tics, and will illuminate the AIRBAG warning lamp
on the cluster when a fault occurs. The warning
equipment is tested for a few seconds every time the
vehicle is started.
CLOCKSPRING
The clockspring is mounted to the steering column
behind the steering wheel. The clockspring is used to
maintain a continuous electrical circuit between the
wiring harness and the:
• Driver’s airbag module
• Speed control switches
• Horn switch
The clockspring consists of a flat, ribbon like, elec-
trically conductive tape which winds and unwinds
with the steering wheel rotation.
DRIVER AND PASSENGER AIRBAG MODULES
WARNING:
NEVER DISASSEMBLE THE DRIVER/
PASSENGER AIRBAG MODULES, THERE ARE NO
SERVICEABLE PARTS WITHIN THE MODULES.
DRIVER AIRBAG MODULE
The Driver Airbag Module is packaged in the steer-
ing wheel (Fig. 1). It contains the airbag cushion and
its supporting components. The drivers airbag mod-
ule contains a housing to which the cushion and
inflator are attached and sealed. A membrane horn
switch is integral to the airbag module cover.
The driver side inflator assembly is mounted from
the back of the module housing. When supplied with
the proper electrical signal the inflator assembly will
produce a gas and discharge it directly into the cush-
ion. A protective cover is fitted to the front of the
Driver Airbag Module and forms a decorative cover
in the center of the steering wheel. This cover incor-
porates the integral horn switch. The driver airbag
module is mounted directly to the steering wheel.
PASSENGER
The Passenger Airbag Module is located beneath
the instrument panel and pad assembly (Fig. 1).
The passenger inflator assembly is within the mod-
ule housing. The module is mounted to the upper and
lower instrument panel. When supplied with the
proper electrical signal the inflator will produce a gas
and discharge it directly into the cushion. Upon
deployment, the instrument panel upper cover will
tear open and allow the passenger airbag to fully
inflate.
FRONT IMPACT SENSOR
The Driver and Passenger Airbag System is a sup-
plemental safety device designed to help protect the
driver and passenger from serious injury, caused by a
frontal impact of the vehicle.
The Airbag
Control
Module’s
(ACM)
internal
impact sensor provides verification of the direction
and severity of an impact. The sensor is mounted
within the ACM.
The Airbag Control Module (ACM) uses data col-
lected from it’s internal accelerometers to discrimi-
nate the direction and severity of an impact. The
ACM will activate power stages internal to the mod-
ule in order to deploy the driver and passenger side
airbags once a predetermined threshold has been
exceeded. The ACM is calibrated for a particular
vehicle family and uses an advanced software algo-
rithm to discriminate the severity and direction of
any vehicle event.
DIAGNOSIS AND TESTING
AIRBAG SYSTEM TEST
(1) Open hood and disconnect the negative battery
cable remote terminal from the remote battery post
(Fig. 2).
(2) Connect scan tool (DRB) to Data Link connec-
tor, located on the left side of the steering column
and at the lower edge of the instrument panel.
Fig. 1 Airbag System Component Location
8M - 2
RESTRAINT SYSTEM
300M