System Readiness

System Readiness
The MRS4RD indicates that the system is ready for operation by extinguishing the airbag warning lamp (AWL).

Fault Storage
If there is a fault in the system, it is indicated by the airbag warning lamp.
If a fault occurs on the MRS4RD, it must be stored in a nonvolatile memory (EEPROM).
When faults are recorded, a distinction is made between internal and external faults.
If an internal fault has been detected, the record of the fault cannot be deleted, i.e. the control unit has to be replaced. The only exception in that regard is incorrect programming data.
External faults on system components are also recorded in the fault memory. Once such faults have been rectified, the record can be removed from the fault memory.