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 restraint 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.
Scheme 25
Scheme 26
- Disconnect the battery negative cable and wait for at least three minutes before beginning work.
- Remove the ignition key from the vehicle.
- Disconnect the DAB, PAB, SAB, CAB and BPT connectors.
- Remove the floor console and heater ducts. (Refer to «FLOOR CONSOLE REPLACEMENT»(ref-357465-S35635903022010032300000) )
- Disconnect the SRSCM harness connector from the SRSCM.
- Remove the SRSCM mounting nuts(3EA) from the SRSCM, then remove the SRSCM.
Scheme 27
The front impact sensor(FIS) is installed in the place below hood latch. It is remote sensor that detect acceleration due to a collision at its mounting location.
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 28
The Side Impact Sensor(SIS) system consists of two front SIS which are installed in the center pillar (LH and RH) and two rear SIS which are installed in the rear 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.
