4.3.4. Fault indication and fault code storage
The Crash Safety Module has a non-volatile fault memory. A fault entry is signalled by the airbag indicator light illuminating.
A distinction is made between internal and external faults when entering the fault code. Events such as triggering of an airbag or seat belt pretensioner are also stored in the fault memory.
NOTE:
The entry of a triggered restraint system in the fault memory does not mean that the restraint system was defective in the crash situation, rather it only means that the ignited restraint system is not available for further triggering.