BM
BMW
BMW
BMW
Z3
Pin Assignments
3450.1bĆa
1999
03/00
E = Input, A = Output, M = Ground
X1170
Pin
Type
Signal
Description/Function
Connection
1
M
VL–
Sensor ground
Left front speed sensor (ABS)
2
E
VL+
Speed signal
Left front speed sensor (ABS)
3
Not used
4
E
15A21
Voltage supply
Fuse 21
5
M
HL–
Sensor ground
Left rear speed sensor (ABS)
6
E
HL+
Speed signal
Left rear speed sensor (ABS)
7
E/A
TXD
TXD signal
Diagnostic link
8
M
31L
Ground
Ground point
9
E
30<10
Voltage supply
Fuse 10
10
E/A
CAN–
CAN bus low
Instrument cluster/engine control
module
11
E/A
CAN+
CAN bus high
Instrument cluster/engine control
module
12
Not used
13
E
54
Brake signal
Brake light switch
14
E
ASCS
ASC-ON-signal
ASC switch
15
Not used
16
A
WLAS
Warning lamp
Instrument cluster
17
Not used
18
Not used
19
M
VR–
Sensor ground
Right front speed sensor (ABS)
20
E
VR+
Speed signal
Right front speed sensor (ABS)
21
A
DFAHR
Right rear speed signal
Engine control module (DME)
22
E
HR+
Speed signal
Right rear speed sensor (ABS)
23
M
HR–
Sensor ground
Right rear speed sensor (ABS)
24
M
31L
Ground
Ground point
25
E
30<38
Voltage supply
Fuse 38