DESCRIPTION
The primary purpose of the SRSCM (Supplemental Restraints System Control Module) is to discriminate between an event that warrants restraint system deployment and an event that does not. The SRSCM must decide whether to deploy the restrain system or not. After determining that pretensioners and/or airbag deployment is required, the SRSCM must supply sufficient power to the pretensioners and airbag igniters to initiate deployment. The SRSCM determines that an impact may require deployment of the pretensioners and airbags from data obtained from impact sensors and other components in conjunction with a safing function. The SRSCM will not be ready to detect a crash or to activate the restraint system devices until the signals in the SRSCM circuitry stabilize.
It is possible that the SRSCM could activate the safety restraint devices in approximately 2 seconds but is guaranteed to fully function after prove-out is completed. The SRSCM must perform a diagnostic routine and light a system readiness indicator at key-on. The system must perform a continuous diagnostic routine and provide fault annunciation through a warning lamp indicator in the event of fault detection. A serial diagnostic communication interface will be used to facilitate servicing of the restraint control system.
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- Disconnect the negative (-) cable from battery and wait for at least three minutes.
- Remove ignition key from the vehicle.
- Disconnect the DAB, PAB, SAB, CAB and BPT connectors.
- Remove the floor console. (Refer to «FLOOR CONSOLE REPLACEMENT»(ref-378954-S09116584832010113000000) )
- Press the lock (1), then pull back the connector lever (2) until it clicks.
- Disconnect the SRSCM harness connector (A) and (B) from the SRSCM.
- Remove the SRSCM mounting bolts (3EA) from the SRSCM, then remove the SRSCM.
Scheme 4
- Disconnect the negative (-) cable from battery and wait for at least three minutes.
- Remove ignition key from the vehicle.
- Install the SRSCM with the SRSCM mounting bolts. Tightening Torque (SRSCM Mounting Bolt) : 1.0 ~ 1.4 kgf.m (9.5 ~ 13.5 Nm, 7.0 ~ 10.0 lb.ft)
- Connect the SRSCM harness connector.
- Install the floor console. (Refer to «FLOOR CONSOLE REPLACEMENT»(ref-378954-S09116584832010113000000) )
- Connect the DAB, PAB, SAB, CAB and BPT connectors.
- Reconnect the battery negative cable.
- After installing the SRSCM, 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.
The front impact sensors (FIS) are installed in the side member. They are remote sensors that detect acceleration due to a collision at their mounting locations. The primary purpose of the Front Impact Sensor (FIS) is to provide an indication of a collision. The Front Impact Sensor (FIS) sends acceleration data to the SRSCM.
Scheme 5
The Side Impact Sensor (SIS) system consists of two front SIS which are installed inside the B-Pillar (LH and RH). They are remote sensors that detect acceleration due to collision at their mounting locations. The primary purpose of the Side Impact Sensor (SIS) is to provide an indication of a collision. The Side Impact Sensor (SIS) sends acceleration data to the SRSCM.
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The STPS operated via a non-contacting 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 ferro-magnetic shunt, which is linked via the seat track. The logic signal produced is the result of the proximity device being activated or deactivated.
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 position zone of the track, it gives a high current (enable) signal.
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- Disconnect the battery negative cable, and wait for at least three minutes before beginning work.
- Remove the front seat assembly. (Refer to «FRONT SEAT»(/kia/rio/ii-2009-2011/remont/seats/#seat-power-seat) )
- Loosen the two STPS screws, then remove the STPS after disconnecting the STPS connector.
The SRSCM shall monitor the status of the driver and front passenger seat belt buckle. The SRSCM provides one pin each for the driver and front passenger seat belt buckle status input. The seat belt buckle circuit operates from internal boost voltage supplied by the SRSCM, and uses chassis ground for the signal return. The buckle status shall modify the SRSCM deployment. If the buckle status is unbuckled, the corresponding pretensioner will be deactivated.
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- Disconnect the battery negative cable, and wait for at least three minutes before beginning work.
- Remove the front seat assembly. (Refer to «FRONT SEAT»(/kia/rio/ii-2009-2011/remont/seats/#seat-power-seat) )
- Remove the seat recliner cover.
- Loosen the seat belt buckle mounting bolt and remove the seat belt buckle switch.
In contrast to the initial one-stage airbag systems, newer restraint systems involve complex logic to select, or alternatively suppress, various levels of safety system deployment. Inherent to an Advanced Restraint System is the ability to discern information regarding passenger occupancy. It is intended that these inputs be provided through the OC system.
The object of such safety system is to reduce the risk and level of injuries by automatically adapting the airbag(s) and seat belt pretensioner to the driving status of the vehicle, its occupants, and the crash severity. The current OC system covered in this specification continually senses and classifies the front passenger side seat.
Scheme 12
See also:
• FRONT BUMPER
• FRONT SEAT