Passive Restraints

Fig 1: Passive Restraints

Courtesy of CHRYSLER LLC

The passive restraints include the following:

• Dual Front Airbags  - Multistage driver and front passenger airbags are standard in this model. This airbag system is a passive, inflatable, Supplemental Restraint System (SRS) and vehicles with this equipment can be readily identified by the "SRS - AIRBAG" logo molded into the driver airbag trim cover in the center of the steering wheel and also into the passenger airbag door on the top of the instrument panel above the glove box. Vehicles with the airbag system can also be identified by the airbag indicator, which will illuminate in the Electro-Mechanical Instrument Cluster (EMIC) for about seven seconds as a bulb test each time the ignition switch is turned to the On position. A pyrotechnic-type seat belt tensioner is also integral to the driver and passenger front seat belt retractors to work in conjunction with the dual front airbags.
• Occupant Classification System  - Vehicles manufactured for sale in North America (except Mexico) also include an Occupant Classification System (OCS) with components that are located on the front seats. These components include an Occupant Classification Module (OCM) and four seat weight sensors on the passenger seat, and a seat track position sensor on the driver seat.
• Curtain Airbags  - Curtain airbags are available when it is also equipped with dual front airbags. This airbag system is a passive, inflatable, Supplemental Restraint System (SRS) and can be readily identified by a molded identification trim button with the "SRS - AIRBAG" logo located on the headliner above each B-pillar.

Fig 2: SRS Emblem

Courtesy of CHRYSLER LLC

The supplemental restraint system includes the following major components, which are described in further detail elsewhere in this service information:

1. Airbag Indicator  - The airbag indicator is integral to the ElectroMechanical Instrument Cluster (EMIC), which is located on the instrument panel in front of the driver.
2. Clockspring  - The clockspring is located near the top of the steering column, directly beneath the steering wheel.
3. Curtain Airbag  - In vehicles equipped with this option, a curtain airbag is secured to each inside roof side rail, and extends from the A-pillar to the D-pillar. The curtain airbags are concealed above the headliner trim.
4. Driver Airbag  - The driver airbag is located in the center of the steering wheel, beneath the driver airbag trim cover.
5. Driver Knee Blocker  - The driver knee blocker is a structural unit secured to the back side of and integral to the instrument panel steering column opening cover.
6. Front Impact Sensor  - Two front impact sensors are used on vehicles equipped with dual front airbags, one left side and one right side. One sensor is located on the back side of each vertical member of the radiator support.
7. Occupant Classification Module  - Vehicles equipped with the Occupant Classification System (OCS) include an Occupant Classification Module (OCM) which is secured to the underside of the passenger side front seat cushion frame.
8. Occupant Restraint Controller  - The Occupant Restraint Controller (ORC) is located on a mount on the floor panel transmission tunnel in front of the transmission gear selector, and is concealed below the instrument panel.
9. Passenger Airbag  - The passenger airbag is located in the instrument panel, beneath the passenger airbag door on the top of the instrument panel above the glove box on the passenger side of the vehicle.
10. Passenger Knee Blocker  - The passenger knee blocker is a structural reinforcement that is integral to and concealed within the glove box door.
11. Seat Belt Tensioner  - A seat belt tensioner is integral to both front seat belt retractor units on vehicles equipped with dual front airbags. The seat belt retractor and tensioner units are secured to the right and left inner B-pillars and concealed beneath the lower B-pillar trim.
12. Seat Track Position Sensor  - The Occupant Classification System (OCS) includes two seat track position sensors. One sensor is located on the inboard side of the outboard seat adjuster track on both the driver and the passenger front seats.
13. Seat Weight Sensor  - Vehicles equipped with the Occupant Classification System (OCS) include four seat weight sensors, one on each corner of the passenger side front seat between the seat cushion frame and the seat adjuster tracks.
14. Side Impact Sensor  - Four side impact sensors are used on vehicles equipped with the curtain airbags, two on each side of the vehicle. One sensor is located near each right and left side B-pillar and C-pillar concealed behind the interior trim.

The ORC, the OCM, and the EMIC each contain a microprocessor and programming that allow them to communicate with each other using the Controller Area Network (CAN) data bus. This method of communication is used by the ORC for control of the airbag indicator in the EMIC. Refer to DESCRIPTION .