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Installation
• Be sure to install the harness wires so that they are not pinched or interfere with other parts.
• Do not turn the ignition switch ON and do not connect the battery cable while replacing the side impact sensor.
1. Install the new side impact sensor with the two bolts then connect the SRS harness connector to the side impact
sensor.
Tightening torque
: 8.8 ~ 10.8 N·m(6.5 ~ 8.0 lb·ft)
2. Reinstall belt pretensioner.
3. Reconnect the negative battery cable.
4. After installing the side impact sensor, confirm proper system operation: Turn the ignition switch ON: the SRS
indicator light should be turned on for about six seconds and then go off.
Restraint > Supplemental Restraint System Control Module (SRSCM) > Seat Track
Position Sensor (STPS) > Description and Operation
DESCRIPTION
The STPS operated via a noncontacting magnetic proximity sensing device combined with a simple electronic circuit
resulting in the ability of producing two separate and distinct logic level signals.
The STPS output signal is altered by the proximity of a separate ferromagnetic shunt, which is linked via the seat
track. The logic signal produced is the result of the proximity device being activated (no shunt present) or deactivated
(shunt present).
When the seat is in the forward position zone of the track, the sensor gives a low current (prohibit) signal. When the
seat is in the rear positon zone of the track, it gives a high current (enable) signal.
Restraint > Supplemental Restraint System Control Module (SRSCM) > Seat Belt Buckle
Switch (BS) > Description and Operation
DESCRIPTION
The buckle status shall modify the SRSCM deployment. If the Buckle Status is Unbuckled, the corresponding
pretensioner will be deactivated.
Restraint > Supplemental Restraint System Control Module (SRSCM) > Occupant
Classification Sensor (OCS) > Description and Operation
DESCRIPTION
The system is intended to classify the occupancy status of the front passenger seat in a motor vehicle based upon the
measured force on the bottom seat cushion.
The system also communicates to the SRSCM whether to allow or inhibit the deployment of the passenger airbags
and/or pretensioner based upon this status.
The System also measured dynamic responses of the occupant. This information is used to idenitify when a child seat
is cinched down tightly with the seat belt, and to also determine if the seat is unoccupied.
However, the dynamic measurements are not intended, nor capable of monitoring the seating position of the occupant,
nor can they determine the proximity of the occupant to the inflator modules.
The system should not be confused with an occupant position recognition system, or any other occupant proximity
sensor.
The Passenger Occupant Detecting System (PODS) utilizes bladder placed between the passenger seat cushion and
suspension to measure the occupant's loading force on the vehicle seat. The bladder is connected to pressure sensor
and ultimately to an electronic control unit (ECU), both of which are mounted under the seat pan. The quantitative force
determined by the system is compared to a given threshold for determination of passenger airbag suppression.