All values measured to ground unless otherwise noted
Conn./Plug/Pin Pin Information Test Value Comments
N57     Note 2
 

A.4
A.1
A.9
Right front power window switch signals:

close partly, as long as switch kept depressed
open/close completely, one touch activation
open partly, as long as switch kept depressed
Ignition on, S21s2 in pos. rest 12 VDC.
Measure to circuit 30 pin E.2, switch in pos.:
Up pos. 1 12 VDC window closes
Up/Down pos. 2 12 VDC window o/c
Down pos. 1 12 VDC window opens
Note 3
A.2 Main ground to W7 Approx. 0 Ohms to ground see also B.7
A.3 Right front power window motor supply output same as pin A.7  
A.6 Left front power window motor supply output Measure to pin A.11 (+), switch S21s1 in pos.:
open window +12 VDC, rest < 2 VDC
close window -12 VDC
 
A.7 Right front power window motor supply output Measure to pin A.3 (+), switch S21s2 in pos.:
open window +12 VDC, rest < 2 VDC
close window -12 VDC
 
 
 

A.12
A.8
A.5
Left front power window switch signals:

open partly, as long as switch kept depressed
close partly, as long as switch kept depressed
open/close completely, one touch activation
Ignition on, S21/4 in pos. rest 12 VDC.
Measure to circuit 30 pin E.2, switch in pos.:
Down pos. 1 12 VDC window opens
Up pos. 1 12 VDC window closes
Up/Down pos. 2 12 VDC window o/c
Note 3
A.11 Left front power window motor supply output same as pin A.6 activated by S21s1
A.10 Circuit 15R/30 main power input 12 VDC when 15R is switched Feed from F4f10
B.1 Left rear power window switch signals   see B.8
B.2 Left rear power window motor supply output Measure to pin B.3 (+), switch S21/5 in pos.:
open window +12 VDC, rest < 2 VDC
close window -12 VDC
Function can also be performed via S21/3
(with safety sw. off)
B.3 Left rear power window motor supply output same as pin B.2 activated by S21/5
or 21/3
B.6 Circuit 15R/30 main power input 12 VDC when 15R is switched Feed from F4f7
B.7 Main ground to W7 Approx. 0 Ohms to ground see also A.2
 

B.8
B.1
Left rear power window switch signals:

open completely, one touch activation
close completely, one touch activation
Ignition on, S21s3 in pos. rest 12 VDC.
Measure to circuit 30 pin E.2, switch in pos.:
Down pos. 1 12 VDC window opens
Up pos. 1 12 VDC window closes
Function can also be performed via S21/3
(with safety sw. off)
B.9 Right rear power window switch signals   see B.12
B.10 Right rear power window motor supply output same as pin B.11 activated by S21/4
or 21/6
B.11 Right rear power window motor supply output Measure to pin E.2 (+), switch S21/6 in pos.:
open window +12 VDC, rest < 2 VDC
close window -12 VDC
Function can also be performed via S21/4
(with safety sw. off)
 

B.12
B.9
Right rear power window switch signals:

close completely, one touch activation
open completely, one touch activation
Ignition on, S21s4 in pos. rest 12 VDC.
Measure to circuit 30 pin E.2, switch in pos.:
Up pos. 1 12 VDC window closes
Down pos. 1 12 VDC window opens
Up/Down pos. 2 12 VDC window o/c
Function can also be performed via S21/6
(with safety sw. off)
C.1 Roof pop-up activation signal input, initialized by S/R switch S13/2 Ignition on < 1 VDC
S13/2 in pop-up pos. 12 VDC
see diagram 77.20
C.2 Sliding roof open activation signal input, initialized by S/R switch S13/2 Ignition on < 1 VDC
S13/2 in slide roof open pos. 12 VDC
see diagram 77.20
C.3 Sliding/pop-up roof close activation signal input, initialized by S/R switch S13/2 Ignition on < 1 VDC
S13/2 in roof close pos. 12 VDC
see diagram 77.20
C.4 Main ground to W7 Approx. 0 Ohms to ground see also A.2
D.2 SN1 processed locking signal input,
from CL/RCL system
Initialize and hold locking command
measure to circuit 30 pin 2 12 VDC
activation with key
or IR transmitter Note 1
D.6 SN2 processed unlocking signal input,
from CL/RCL system
Initialize and hold unlocking command
measure to circuit 30 pin 2 12 VDC
activation with key
or IR transmitter
Note 1
E.2 Circuit 30 main power input 12 VDC at all times Feed from F4f9
E.3 Circuit 15R power input 12 VDC with ignition on Feed from F3f26
Note Refer to D. M. Body and Accessories Volume 2, 5.1 For correct position recognition, window system has to be synchronized: press switch in first detent "up" pos., hold for at least 2 sec. after window is fully closed Note 3
Note 1 SN1 lock signal will cause to close windows and/or sliding/pop-up roof if open SN2 unlock signal will cause to open windows and/or sliding/pop-up roof with delay of approx. 2-4 sec. (immediately if not have been closed completely before, but only within 15 sec. of a closing operation) Model 140 does not have a summer opening feature
Note 2 Window position information and switch function checks are performed best with HHT.
(refer to DM. Body& Accessories, CF actual values)
   
Note 3 Each switch has four positions:
up, express up, down, express down
If window is not synchronized, express feature is inoperative and window will not move in second detent position