B1620

B1620 Internal Fault
B1650 (1st Stage) Crash Recorded (Frontal Airbag)
B1651 Crash Recorded-Driver Side & Curtain Airbag
B1652 Crash Recorded-Passenger Side & Curtain Airbag
B1657 Crash Recorded-Seat Belt Pretensioner Only
B1658 Seat Belt Pretensioner 6 times deployment
B1670 (2nd Stage) Crash Recorded (Frontal Airbag)

DESCRIPTION

SRSCM MALFUNCTION
The SRSCM shall also cyclically monitor the following:
1. Functional readiness of the firing circuit activation transistors.
2. Adequacy of deployment energy reserves.
3. Safing sensor integrity : detection of faulty closure.
4. Plausibility of accelerometer signal.
5. Operation of SRSCM components.

INSPECTION PROCEDURE

REPLACE THE SRSCM
The timely completion of 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 will reset the SRSCM and activate the SRI (Service Reminder Indicator).

The SRSCM must be replaced once the fault codes mentioned above (Except for B1657) are confirmed.

NOTE: For B1657 five times reusability is possible.