ENGINE   111.973 with CODE (423) Automatic five-speed transmission (NAG)

Shown on Engine 111 K40/4 Fuse and relay module, model 202, 208, 210 (starter relay integrated) L5 Crankshaft position sensor M1 Starter (circuit 50) N3/4 HFM-SFI [HFM] control unit N3/10 ME-SFI control unit (shown) N15/3 ETC control unit N65 Cycling module, model 170 (starter relay integrated) S2/1 Ignition/starter switch
		P07.61-0387-06

Task After engine start speed is reached, interrupt the circuit (circuit 50) M1to the solenoid switch of the starter.

Design The solenoid switch of the starter is operated not through the ignition/start switch S2/1, but in drive position P or N through the starter relay, by the engine control unit. The voltage for the starter relay (coil) is supplied through circuit 87. The starter relay is actuated by the engine control unit through GND.

Function When the ignition/start switch is operated in the start position, the engine control unit activates an automatic start control. Once the engine start speed of 400 to 700 rpm is reached, the engine control unit interrupts the ground actuation to the starter relay and thus the engine start operation.

Once the engine start operation is initiated, shutting off circuit 50 at the ignition/start switch has no effect. The starter rotates until the specified start speed is reached, or for about 5 seconds at an engine temperature of +80 °C, for a maximum of 10 seconds if the engine is cold.

	Motor electronics control unit, location/task/design/function		GF07.61-P-5000F
	Crankshaft position sensor, location/task/design/function		GF07.04-P-4116F
	Start recognition function	Engine 111	GF07.13-P-3014G
	ETC control unit, location/task	Selector lever position information P/N and driving position engaged. Transmission 722.6	GF27.19-P-4012G