Starter control, function - GF15.30-P-3000CZ

ENGINE 272.911 in MODEL 204.0 with CODE (427) 7-speed automatic transmission up to Model Year 2008 

ENGINE 272.921 in MODEL 204.0/2 with CODE (427) 7-speed automatic transmission up to Model Year 2008 

ENGINE 272.947 in MODEL 204.0/2 with CODE (427) 7-speed automatic transmission up to Model Year 2008 

ENGINE 272.948 in MODEL 204.0 with CODE (427) 7-speed automatic transmission up to Model Year 2008 

ENGINE 272.961 in MODEL 204.0/2 with CODE (427) 7-speed automatic transmission up to Model Year 2008 

ENGINE 272.971 in MODEL 204.0 with CODE (427) 7-speed automatic transmission up to Model Year 2008 

The starter control which is integrated in the ME-SFI [ME] control unit (N3/10) takes over the actuation of the starter (M1) and the deactivation of the starter after reaching the engine starting speed.

Starting prerequisites 

Actuation of the starter only takes place for "start enable" (drive authorization) by the electronic ignition lock control unit (N73) and for recognition of the engaged drive position "P" or "N" by the electronic selector lever module control unit (N15/5).

Starting 

On actuating the transmitter key (A8/1) in start position, the ME-SFI [ME] control unit receives the "Circuit 50 signal" from the electronic ignition lock control unit via the chassis CAN (CAN E).

Start control is carried out automatically by the ME-SFI [ME] control unit (touch start). It actuates the starter circuit 50 relay (N10/1kM) with a ground signal. The power contact on the relay closes and the starter solenoid switch is supplied at "circuit 50" with voltage from "circuit 30 unfused".

Ending start 

When reaching an engine starting speed of 400 up to 700 rpm and a starting time of approx. 5 to 40 seconds (dependent on the coolant temperature), the ME-SFI [ME] control unit interrupts negative activation to the starter circuit 50 relay and therefore ends the starting procedure.

START ABORTION 

Once the engine start operation is initiated, shutting off "circuit 50" has no further effect on the starting procedure.

The starting procedure can only be broken off by switching off the ignition (ignition OFF).

	Electrical function diagram for starter control (for transmission 722.9)		PE15.30-P-2051-99FAC
	Component description for the coolant temperature sensor	B11/4	GF07.04-P-6043CY
	Component description for the crankshaft Hall sensor	B70	GF07.04-P-6221CY
	Component description for the ME-SFI [ME] control unit	N3/10	GF07.61-P-6000CY