DaimlerChrysler SPRINTER2006 Service Manual page 89

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travelling end-release seat belt buckles secured to
the inboard seat track. The driver side front seat belt
buckle of all models includes an integral seat belt
switch that detects whether its seat belt has been
fastened.
• Rear Seat Belts - All rear seating positions are
equipped with three-point seat belt systems. Each
rear seating position belt employs an integral seat
cushion frame mounted inertia latch-type retractor, a
fixed position upper seat back frame mounted turn-
ing loop, and a fixed lower seat belt anchor secured
to the seat cushion frame. All rear seat belts have
fixed end-release seat belt buckles that are also
secured to the seat cushion frame.
PASSIVE RESTRAINTS
A Next Generation driver airbag is standard facto-
ry-installed safety equipment on this model, while a
passenger side front airbag and side curtain airbags
are optional. This airbag system is a passive, inflat-
able, Supplemental Restraint System (SRS) and vehi-
cles with this equipment can be readily identified by
the "SRS - AIRBAG" logo molded into the driver air-
bag trim cover in the center of the steering wheel
and, if the vehicle is so equipped, also into the pas-
senger airbag door on the instrument panel above
the glove box (Fig. 2). Vehicles with the airbag sys-
tem can also be identified by the airbag indicator,
which will illuminate in the instrument cluster for
about six seconds as a bulb test each time the igni-
tion switch is turned to the On position. A pyrotech-
nic-type seat belt tensioner is integral to the front
seat belt retractor mounted on the lower B-pillar on
the driver side, and to the passenger side retractor of
vehicles equipped with the optional passenger side
airbag.
Fig. 2 SRS Logo
The supplemental restraint system includes the
following major components, which are described in
further detail elsewhere in this service information:
• Airbag Control Module - The Airbag Control
Module (ACM) is located on a mount on the floor
panel within the driver side seat riser, beneath the
driver seat in the passenger compartment.
• Airbag (SRS) Indicator - The airbag indicator
is integral to the ElectroMechanical Instrument Clus-
ter (EMIC), which is located on the instrument panel
in front of the driver.
• Clockspring - The clockspring is located near
the top of the steering column, directly beneath the
steering wheel.
• Driver Airbag - The driver airbag is located in
the center of the steering wheel, beneath the driver
airbag trim cover.
• Driver Knee Blocker - The structure of the
lower instrument panel serves as a knee blocker for
the driver.
• Passenger Airbag - The optional passenger air-
bag is located within the instrument panel, behind
the passenger airbag door on the instrument panel
above the glove box on the passenger side of the vehi-
cle.
• Passenger Knee Blocker - The structure of
the glove box door and the lower instrument panel
serve as a knee blocker for the front seat passenger.
• Seat Belt Tensioner - A seat belt tensioner is
integral to the driver side front seat belt retractor
unit, and to the passenger side front seat belt retrac-
tor unit on vehicles equipped with an optional pas-
senger airbag.
• Side Curtain Airbags - Optional side curtain
airbags are available for this model when it is also
equipped with dual front airbags. In vehicles
equipped with this option, a side curtain airbag is
located on the inside of the roof side rail within a
garnish molding that extends from the A-pillar to the
B-pillar above each front door opening within the
passenger compartment of the vehicle.
• Side Impact Sensor - Two side impact sensors
are used on vehicles equipped with the optional side
curtain airbags, one on each side of the vehicle. One
sensor is located near the front of each front door
step well, concealed behind the step well trim.
The ACM contains a central processing unit and
programming that allows it to communicate on a
serial data bus diagnostic circuit connected to the
16-way Data Link Connector (DLC) located below the
left end of the instrument panel. This method of com-
munication is used for initialization of the ACM and
for diagnosis of the SRS circuits and components
using a diagnostic scan tool.
Hard wired circuitry connects the supplemental
restraint system components to each other through
the electrical system of the vehicle. These hard wired
circuits are integral to several wire harnesses, which
are routed throughout the vehicle and retained by
many different methods. These circuits may be con-
nected to each other, to the vehicle electrical system,
RESTRAINTS 8O - 3