Switching on/off manually

Press the button.
- On: the LED lights up.
- Off: the LED goes out.
See also:
Socket for OBD Onboard
Diagnosis
Socket for OBD Onboard
Diagnosis
On the driver's side is an OBD socket for checking
the primary components in the vehicle emissions. ...
Deactivating HDC
Press the button again and the
LED goes
out. HDC is automatically deactivated
above approx. 37 mph/60 km/h. ...
The concept
The Check Control system monitors functions
in the vehicle and notifies you of malfunctions in
the monitored systems.
A Check Control message is displayed as a
combination of indicator or warnin ...
