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Power window manual lowering, function - GF72.29-P-2008Q

MODEL 209.3 /4 

Fig 1: Power Window Manual Lowering Function Diagram - Shown On Model 209.3
G04959500Courtesy of MERCEDES-BENZ USA

Shown on model 209.3 

Function requirements 

Termination of manual lowering function 

Driver-side control point 

All windows can be opened manually via the driver-side power window switch group (S20/1)The corresponding signal is read by the left door control module (N69/1)

The left front power window motor (M10/3) is directly actuated by the left door control module (N69/1).

The opening requests for the right front power window motor (M10/4) are transmitted to the right door control module (N69/2) via CAN class B bus which then starts actuation

The opening requests for the left rear power window motor (M10/5) and right rear power window motor (M10/6) are transmitted to the rear control module (N22/6) (on model 209.3) or power soft top control module (on model 209.4) via CAN class B bus, which then starts actuation

IMPORTANT Actuation of the rear window by the left rear power window switch (S21/3) and right rear power window switch (S21/4) can be enabled or disabled via the child safety lock switch in the rear side windows (S20/1s5).

Passenger control point 

Only the window on the passenger side can be closed via the front passenger power window switch (S21/2. The opening request is read in by the right door control module (N69/2)

The right front power window motor (M10/4) is directly actuated by the right door control module (N69/2)

Rear control point 

The corresponding rear window can be opened via the left rear power window switch (S21/3) and right rear power window switch (S21/4) The opening requests are read in by the rear control module (N22/6) (on model 209.3) or the power soft top control module (on model 209.4)

The left rear power window motor (M10/5) and right rear power window motor (M10/6) is directly actuated by the rear control module (N22/6) (on model 209.3) or power soft top control module (on model 209.4).

IMPORTANT The windows can still be opened or closed for 5 min. after switching off circuit 15R as long as the doors are not opened. The valid door status (door open or closed) is transmitted to the rear SAM control module with fuse and relay module (N10/2) by the left door contact switch (S17/3) and right door contact switch (S17/4), which then relays the information to the CAN class B bus. When a door is opened or the vehicle is locked all active power window functions are terminated

  Front power window motor, location/function   GF72.29-P-4108Q 
  Rear power window motor, location/function   GF72.29-P-4109Q 
  Power window switch group, location/task/function   GF72.29-P-4125Q 
  Front passenger power window switch, location/task   GF72.29-P-4119Q 
  Rear window switches, location/task   GF67.39-P-3104Q
  Left door control module, location/task   GF72.29-P-4122Q 
  Right door control module, location/task   GF72.29-P-4123Q 
  Rear SAM control module with fuse and relay module, location/task Model 209.3 GF54.21-P-4130Q
Model 209.4 GF54.21-P-4130QA
  Rear control module, location/task On model 209.3 GF54.21-P-4133Q
  Power soft top control module, location/task/design/function for model 209.4 GF77.37-P-3200QA
  Electronic ignition switch control module, location/task   GF80.57-P-4120Q