500SL (129.067) V8-5.0L (119.972) (1993)
Electronic Throttle Control Module: Description and Operation
Electronic Accelerator
Electronic Accelerator System Schematic
PURPOSE
The electronic accelerator control module (N4/1) controls the cruise control, idle speed functions and electronic engine control (electronic
accelerator pedal) for ABS/ASR III to ensure smooth and consistent operation regardless of engine temperature and load.
OPERATION
When the ignition switch is in the ON position, the idle speed control function is in operation. The position of the throttle valve for idle speed and
ABS/ASR III is determined by the control module via the nominal value (accelerator pedal input) potentiometer in the electronic accelerator
actuator (M16/1). The actual value potentiometer in the electronic accelerator actuator signals the position of the throttle valve. The electronic
accelerator control module compares the signals and specifies the position of the throttle valve via the output signal. This signal is used by the