C 320 Sedan (203.064) V6-3.2L (112.946) (2001)
Power Window Switch: Description and Operation
Driver-Side Power Window Switch Group
Function
The switch positions of the power window switches (S20/1s1, S20/1s2, S20/1s3, S20/1s4) in the driver-side power window switch group (S20/1) are
voltage-coded by means of resistors. The coded voltages are scanned by the left front door control module (N69/1).
The power window switches have five mechanical positions:
Center position
Neutral
First detent (pull)
Manual raising
Second detent (pull)
Automatic raising
First detent (push)
Manual lowering
Second detent (push)
Automatic lowering
The power window switches in the driver-side power window switch group (S20/1) are used to give commands for opening and closing the relevant
window. The rear power window safety switch (S20/1s5) can be used to disable operation of the rear power windows using the left rear power window
switch (S21/3) and right rear power window switch (S21/4). The trunk lid release switch (S20/1s6) is used to unlock the trunk lid. The switch status is
indicated by an LED.