Function Description

The on-board diagnostic (OBD) system for the SRS continually diagnoses the function of SRS system components and stores any diagnostic trouble codes (DTCs). However, the two front seat belt buckles diagnostics are carried out by the central electronic module (CEM) which also stores any diagnostic trouble codes (DTC) for them. If the fault is registered for longer than 5 minutes, the central electronic module (CEM) transmits a diagnostic trouble code (DTC) to the SRS module. The SRS module then stores diagnostic trouble codes (DTCs) for the front seat belt buckles. The diagnostic trouble codes (DTCs) can then be read off via VIDA. The principle behind VIDA information presentation is the same as for other on-board diagnostic (OBD) systems.