Component Description

Supplemental Restraint System (SRS)

Component Description

Clockspring

The clockspring allows for continuous electrical connections between the driver air bag module and the RCM (Restraints Control Module). A spiral-wound cable wraps around the center of the clockspring and as the steering wheel is turned, the spiral cable inside expands or contracts in diameter as the 2 halves of the clockspring turn.

Driver Air Bag Module

The driver air bag module is a dual-stage air bag. Upon receiving a flow of current, it deploys at 1 of 2 different rates, depending upon vehicle impact severity and sensor input.

Seat Position Sensor

The seat position sensor is a Hall-effect sensor which indicates the position of the seat along the seat track. The sensor detects the presence of a shunt bracket on the track, indicating that the seat has moved past a certain point in the range of adjustment.

Occupant Classification System (OCS)

The OCS (Occupant Classification System) is found only on the front passenger seat. The OCS (Occupant Classification System) classifies the size of front passenger seat occupant.

The OCS (Occupant Classification System) is comprised of a silicone gel-filled bladder mounted between the seat cushion foam and pan, an OCSM (Occupant Classification System Module) which is mounted to the seat frame, and a pressure sensor that is internal to the OCSM (Occupant Classification System Module). Pressure is applied to the OCS (Occupant Classification System) bladder when weight of any occupant or object in the front passenger seat is present. The pressure is then transferred through a tube and sensed by the OCS (Occupant Classification System) pressure sensor and OCSM (Occupant Classification System Module). The components of an OCS (Occupant Classification System) bladder system (bladder, tube, and OCSM (Occupant Classification System Module) with integrated pressure sensor) are serviced as an assembly, and the OCS (Occupant Classification System) bladder system is serviced as a kit with the seat cushion and seat heater mat (if applicable).

The BTS (Belt Tension Sensor) is a Hall-effect sensor that modifies a reference voltage supplied by the OCSM (Occupant Classification System Module). As the amount of tension applied to the belt varies, so does the voltage that returns to the OCSM (Occupant Classification System Module).

Safety Canopy Module

WARNING: Anytime the Safety Canopy(R) or side air curtain module has deployed, a new headliner and new A-, B-, C- and D-pillar upper trim panels and attaching hardware must be installed. Remove any other damaged components and hardware and install new components and hardware as needed. Failure to follow these instructions may result in the Safety Canopy(R) or side air curtain module deploying incorrectly and increases the risk of serious personal injury or death in a crash.

The Safety Canopy(R) module is a single-stage air bag which is designed to protect the vehicle occupant(s) during certain side impact or rollover crashes. It deploys upon receipt of current flow, in conjunction with the seat side air bag module.

Passenger Air Bag Deactivation (PAD) Indicator

The PAD (Passenger Air Bag Deactivation) indicator is comprised of a pair of LEDs (Light-emitting Diodes) in the front of the FCIM (Front Controls Interface Module). The PAD (Passenger Air Bag Deactivation) indicator cannot be serviced separate from the FCIM (Front Controls Interface Module).

Restraints Control Module (RCM)

WARNING: Do not handle, move or change the original horizontal mounting position of the RCM (Restraints Control Module) while the RCM (Restraints Control Module) is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy(R) and cause serious personal injury or death.

WARNING: If a vehicle has been in a crash, inspect the RCM (Restraints Control Module) and the impact sensor (if equipped) mounting areas for deformation. If damaged, restore the mounting areas to the original production configuration. A new RCM (Restraints Control Module) and sensors must be installed whether or not the air bags have deployed. Failure to follow these instructions may result in serious personal injury or death in a crash.

NOTE: This vehicle may be equipped with the SYNC(R) feature which contains the 911 Assist(R) option. Refer to the Owner's Literature.

The RCM (Restraints Control Module) includes a backup power supply. This feature provides sufficient backup power to deploy the air bags in the event the ignition circuit is lost or damaged during impact. The backup power supply depletes its stored energy approximately one minute after power and/or ground has been removed from the RCM (Restraints Control Module).

The RCM (Restraints Control Module) requires PMI (Programmable Module Installation) when being replaced. Refer to the scan tool instructions to carry out PMI (Programmable Module Installation).

For information about RCM (Restraints Control Module) operation, REFER to System Operation.

Inflatable Safety Belt

REFER to Safety Belt Retractor - Inflatable Safety Belt .

Front Impact Severity Sensor

The front impact severity sensors measure acceleration (g-rate) and are hardwired to the RCM (Restraints Control Module). Mounting orientation is critical for correct operation of the front impact severity sensors.

Side Impact Sensor - Front Door

The front door side impact sensors measure air pressure within the door in order to detect certain crashes, such as a side impact. Mounting position and orientation is critical for correct operation of the front door side impact sensors.

Safety Belt Retractor and Pretensioner

REFER to Safety Belt Retractor and Pretensioner .

Safety Belt Retractor and Adaptive Load Limiter

REFER to Safety Belt Retractor Adaptive Load Limiter .

Safety Belt Tension Sensor

The BTS (Belt Tension Sensor) is a 3-wire Hall-effect sensor that is part of the front passenger safety belt anchor and cannot be serviced separately from the front passenger safety belt and retractor assembly.

Safety Belt Buckle Sensor

The safety belt buckles contain integrated sensors that are Hall-effect switches. The safety belt buckle sensors are serviced as one component with the safety belt buckle.

Passenger Air Bag Module

The passenger air bag module is a dual-stage air bag which deploys at 1 of 2 different rates depending upon vehicle impact severity and sensor input.

Side Air Bag Module

The side air bag module is a single-stage air bag which deploys upon receiving current flow. It is used in conjunction with the Safety Canopy(R) module.

Side Impact Sensor - Second Row

The second row side impact severity sensors measure acceleration (g-rate), and are hardwired to the RCM (Restraints Control Module). Mounting orientation is critical for correct operation of the second row side impact severity sensors.

Safety Belt Buckle and Pretensioner

REFER to Safety Belt Buckle and Pretensioner .

Safety Belt Inflator

REFER to Safety Belt Inflator .