4. 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
diagnostictrouble code using the Hi-Scan Pro.
5. MIL (Malfunction Indication Lamp) notification : If any fault is detected, the SRSCM sends a signal to the
indicator lamp on the instrument cluster towarn 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 ignitionswitch is first turned on.
6. 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 erasedby the Hi-Scan Pro.
7. Data link connector : SRSCM memory stored is linked through this connector located underneath the driver
side crash pad to an external output devicesuch as the Hi-Scan Pro.
8. What if only BPT's deploy
9. Crash output
The crash output is used to unlock the doors in case of a crash. The crash output is : 0-200
λ
A in OFF mode
and 200mA in ON mode. During theunlock command, the switch is closed for 200 mS.
SRSCM (SUPPLEMENTAL RESTRAINTS SYSTEM CONTROL MODULE)
1. When removing the airbag module or handling a new airbag module, it should be placed with the pad top
surface facing up. In this case, the twin-lock type connector lock lever should be in the locked state and care
should be taken to place it so the connecter will not be damaged. Do not store a steering wheel pad on top of
another one. (Storing the pad with its metallic surface up may lead to a serious accident if the airbag should
inflate accidentally.)
2. Never measure the resistance of the airbag squib. (This may cause the airbag to deploy, which is very
dangerous.)
3. Store the airbag module where the ambient temperature remains below 93°C (200°F), without high humid ity
and away from electrical noise.
4. During electric welding, disconnect the airbag under the steering column near the MULTI-FUNCTION
SWITCH connector before starting work.
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24.04.2008
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