Special Case

Special Case
If the outer insulation is damaged ( e.g. due to friction/scuffing), but the monitoring shield has no connection to earth, the following case could occur.
Moisture (rain) would mean that the voltage would gradually fall. A short circuit to earth would be detected, but the safety battery terminal would not be triggered.
The entry Implausible measured value is set in the fault code memory. This would be indicated to the driver by the airbag warning lamp.