BMW 1992 525i Electrical Troubleshooting Manual page 275

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MEMORY SEATS/MIRRORS (SM/SPM)
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Pin Assignments
A=X601
26 Pins, white
B=X602 26 Pins, yellow
C=X648
6 Pins, black
D=X649
6 Pins, white
E=X653 6 Pins, black
F=X654 6 Pins, white
G=X655
6 Pins, blue
H=X656 6 Pins, green
I=X657 6 Pins, brown
I=X16181 6 Pins, yellow
X601
Pin Type Description/Function Connection
1
E Potentiometer connection
Driver's mirror
2 E Potentiometer connection
Driver's mirror
3
A Position potentiometer, voltage Driver's mirror
4
M Position potentiometer, ground
Driver's mirror
5
Not used
6 E Potentiometer connection
Passenger's mirror
7
Not used
8
Not used
Type of Signal
Tester Display
0-4.5V Voltage value
0-4.5V
Voltage value
5V
Voltage value
Ground
Voltage value
0-4.5V
Voltage value
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Measurement Notes
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0
0
.
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