Far-reaching man-made atmospheric changes are looming
on the horizon. They will have grave consequences for the earth‘s
biosphere unless we dramatically reduce and control the pollutant
emissions of motor vehicles, among other things.
The On-Board Diagnosis
System (or OBD) was introduced for this purpose. OBD is a diagnosis system
integrated in the vehicle‘s engine management system which continuously
monitors the components affecting exhaust emissions. If a fault occurs,
OBD recognizes it, stores it and indicates it via the self-diagnosis fault
warning lamp
(MIL).
