ENGINE   113.991 in MODEL 215

B37 Accelerator pedal sensor L5 Crankshaft position sensor M16/6 Throttle valve actuator N3/10 ME-SFI [ME] control unit N15/3 ETC control unit N47-5 ESP control unit (Model 219) N47-5 ESP, SPS [PML] and BAS control unit (model 463) N47-5 ESP, SPS and BAS control unit (Model 211, 215, 220, 230) S9/1 Stop lamp switch X11/4 Data link connector Y62 Fuel injection valves CAN databus (Controller Area Network)
		P30.20-2062-06

The task of the electronic accelerator emergency mode consists in ensuring that the car can be continued to be driven safely even in case of any faults in the electronic accelerator system (EA). Accelerator pedal sensor emergency running If one Hall sensor fails, the system switches over to the second Hall sensor. The throttle valve opening is limited to about 60 % of the maximum opening. In addition, the speed at the which the throttle valve opens is dynamically limited (throttle valve opens with a delay). If the plausibility check is negative or if both Hall sensors fail, only idle speed is then still controlled. Emergency mode in the event of failure of the throttle valve potentiometer If one potentiometer fails, the system switches over to the second, intact potentiometer. If both potentiometers are defective, the throttle valve is brought o the emergency mode position of around 10° opening angle by the spring capsule. Emergency mode in the event of failure of the throttle valve actuator The throttle valve actuator is switched without power and the throttle valve brought to the emergency mode position of around 10° opening angle by the spring capsule.

Engine speed control with throttle valve in emergency mode position In the idle speed range, engine speed is controlled to about 1200 rpm by shutting off and switching on the cylinders on the fuel side. While driving, depending on the engine load, engine speed is controlled to about 1800 rpm by switching the cylinders on and off on the fuel side. In doing so, the maximum engine speed is determined by the throttle valve emergency mode position. Input signals for deactivating and switching on the cylinder (injection valve shutoff) are: Engine speed Brake detection (via the ESP control unit) Drive positions (via the ETC control unit) Faults detected by the accelerator pedal sensor and the throttle valve actuator are stored in the diagnostic trouble code memory and can be read out and deleted with the STAR DIAGNOSIS. If the brake pedal is operated, this always means idle speed input.

	Fuel injection valve, location/task/design/function		GF07.03-P-5004KE
	Crankshaft position sensor, location/task/design/function		GF07.04-P-4116AM
	ME-SFI control unit, location/task/design/function		GF07.61-P-5000AM
	Accelerator pedal sensor, location/task/design/function		GF30.20-P-4010HA
	Throttle valve actuator, location/task/design/function		GF30.22-P-4101AM
	Stop lamp switch. location/task/function		GF42.10-P-4000AM