The SRSCM shall also cyclically monitor the following :
Functional readliness of the firing circuit activation transistors.
Adequacy of deployment energy reserves.
Safing sensor integtity : detection of faulty closure.
Plausibility of accelerometer signal.
Operation of SRSCM components.
The timely completion of all tests is monitored by a separate hardware watchdog. During normal operation, the watchdog is triggered periodically by the SRSCM : If the SRSCM fails to trigger the watchdog, the watchdog willreset the SRSCM and activate the SRS SRI.
The SRSCM must be replaced once the fault codes mentioned above are confirmed.