See also:

Telephone
...

Functional requirements
▷ There are no external sources of interference nearby. ▷ To lock the vehicle, the remote control must be located outside of the vehicle. ▷ The next unlocking and locking cycle ...

The concept
The parking brake is used to prevent the vehicle from rolling when it is parked. Engine switched off: the parking brake acts on the rear wheels. Engine running: the parking brake acts on ...