Pic. 3.2. Location of the elements of the clutch disengagement control system when starting the engine: 1 - starter relay; 2 - clutch pedal switch
This system prevents the engine from being started by the starter when the clutch pedal is released. Thus, preventing the engine from starting while in gear ensures that unintentional starting is not possible.
Pic. 3.3. Wiring diagram of the clutch disengagement control system when starting the engine