When the ignition key is turned to position "START" ("Start") current passes through the retracting winding of the traction relay of the starter, moving the armature of the traction relay. Traction relay armature moves drive lever (fork), which in turn introduces the drive gear (made together with a freewheel) into engagement with the ring gear of the torque converter of the variator or automatic transmission. At the same time, the movement of the armature of the traction relay closes the contacts "IN" And "M" starter.
As a result, the current begins to pass through the windings of the armature, the starter and the holding winding of the traction relay, thereby turning on the starter motor. When the ignition key is returned to the position after starting the engine "ON" (ON), the starter freewheel disengages the pinion gear from the ring gear of the CVT torque converter or automatic transmission.
Schematic diagram of the engine start system.