| TIBURON(GK) >2006 > G 2.0 DOHC > Restraint > Supplemental Restraint System Control Module (SRnodeM) > SRS Control Module (SRnodeM)>Description and Operation |

SRS HARNESS
SRSCM INDEPENDENT LAMP ACTIVATION
1. | Loss of ignition voltage supply to the SRSCM : lamp turned on continuously.
2. | Loss of internal operating voltage : lamp turned on continuously.
3. | SRSCM not connected : lamp turned on through shorting bar in wiring harness connector.
CLOCK SPRING The clock spring (coil spring) consists of two current carrying coils. It is attached between the steering column and the steering wheel. It allows rotation of the steering wheel while maintaining continuous contact of the deployment loop through the inflator module. side impact sensor(sis) The SRSCM is supported with the side airbag function by two SIS, which act as intelligent acceleration sensors and as such back up the central airbag controller. Both the SIS continuously report the system statuson the left and right-hand sides of the vehicle to the SRSCM.
When the ignition is ON, never cause a sudden shock around the installation area of the satellite sensor by a hammer, etc. Otherwise it could cause the airbag system to unexpectedly deploy during servicing.
SRSCM The SRS airbag system has sophisticated electrical and electronic components. Therefore the airbag operating components should be handled very carefully. The SRSCM will deploy the airbag modules by sensing the frontal impact sensed by the sensor built in to the SRSCM.
1. | DC/DC convertor : The DC/DC converter in the power supply includes a step-up and a step-down converter, which provides the firing voltage for four firing circuits and the internal operating voltage. If the internal operating voltage falls below a defined threshold, a reset is executed.
2. | Arming sensor/safing sensor : The arming/safing sensor built in to the airbag firing circuit has the function of arming the airbag circuit under all required deployment conditions and maintaining the airbag firing circuits unarmed under normal driving conditions. The safing sensor is a dual-contact electro mechanical switch that closes if it experiences a deceleration exceeding a specified threshold.
3. | Back-up power : The SRSCM reserves an energy reserve to provide deployment energy for a short period when the vehicle voltage is low or if lost in a vehicle frontal crash.
4. | Back-up power : The SRSCM reserves an energy reserve to provide deployment energy for a short period when the vehicle voltage is low or if lost in a vehicle frontal crash.
5. | Malfunction detection : The SRSCM continuously monitors SRS operating status while the ignition key is turned on and detects possible malfunctions in the system. The malfunction can be displayed in the form of a diagnostic trouble code using the Hi-Scan Pro.
6. | MIL (Malfunction Indication Lamp) notification : If any fault is detected, the SRSCM sends a signal to the indicator lamp on the instrument cluster to warn the vehicle driver. The MIL indicator is the key item in notifying the driver of SRS faults. It verifies lamp and SRSCM operation by flashing 6 times when the ignition switch is first turned on.
7. | Malfunction recording : Once a fault occurs in the system, the SRSCM records the fault in memory in the form of a DTC, which can only be erased by the Hi-Scan Pro.
8. | Data link connector : SRSCM memory stored is linked through this connector located under neath the driver side crash pad to an external output device such as the Hi-Scan Pro.
9. | What if only BPT's deploy.
10. | Crash output The crash output is used to unlock the doors in case of a crash. The crash output is : 0 ~ 200 μA in OFF mode and 200mA in ON mode. During the unlock command, the switch is closed for 200 mS.