SL 600 (129.076) V12-6.0L (120.981) (1995)
Electronic Throttle Control Module: Description and Operation
Electronic Accelerator System Diagram
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 potentiometer (accelerator pedal input) in the electronic accelerator
actuator (M16/3, location left). The actual value potentiometer in the electronic accelerator actuator (M16/3) signals the position of the left throttle
valve. At the same time, the actual value potentiometer in the electronic accelerator actuator (M16/4, location right) signals the position of the
right throttle valve to the control module. The control module compares the signals and specifies the position of the throttle valves via the output
signals. This signal is used by the electronic accelerator actuators (M16/3 and M16/4) to adjust the throttle valve.