1998 BMW Z3M ROADSTER Electrical Troubleshooting Manual


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Pin Assignments (M Roadster)
 !""







E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
86
AASC lamp controlInstrument cluster
87Not used
88ALeft front outlet valveABS hydraulic unit
89ARight rear outlet valveABS hydraulic unit
90ARight rear speed signalEngine control module (DME)
91ESpeed signalLeft front speed sensor (ABS)
92AActivate relayValve relay
93MSensor groundRight rear speed sensor (ABS)
94AThrottle position sensor (–)Auxiliary throttle position sensor
95Not used
96Not used
97Not used
98AThrottle position sensor (+)Auxiliary throttle position sensor
99EASC-ON-signalASC switch
100Not used
101E/ATXD signalDiagnostic link
102Not used
103EBrake signalBrake light switch
104AChangeover valve (ASC)ABS hydraulic unit
105Not used
106EVoltage supplyFuse 10
107ALeft rear inlet valveABS hydraulic unit
108AADS step motor (–)ADS step motor
109ARight front inlet valveABS hydraulic unit
11 0MGroundGround point
111Not used
11 2Not used
11 3Not used
11 4Not used
11 5Not used
11 6Not used
11 7Not used


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Pin Assignments (M Roadster)
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E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
11 8
Not used
11 9Not used
120Not used
121Not used
122EASC throttle flap signalAuxiliary throttle position sensor
123Not used
124Not used
125Not used
126Not used
127Not used
128Not used
129Not used
130Not used
131ESignal park brake setPark brake switch
132EEngine signal 3Engine control module (DME)
133Not used
134Not used
135Not used
136EEngine signal 2Engine control module (DME)
137Not used
138ETransmission control signalNot used
139Not used
140Not used
141Not used
142Not used
143EThrottle flap positionEngine control module (DME)

SLIP CONTROL (ABS/ASC)4–CYLINDER





X1652
X1161
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K75
ABS PUMP MOTOR
RELAY


32 X10018
1 X78
.5 GR/SW/GE
X181
1.5 BL/RT
216 X1001814 X1001720 X10015
212 X78
692
48 X1161
23 X16
17
BRAKE LIGHTS
6325.0
4404 .75 BL/RT
A52
SLIP CONTROL
MODULE
(ABS/ASC) S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED
.5 BR/SW 2.5 RT/GN/GE
A2w
INSTRUMENT
CLUSTERP90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3FUSE DETAILS
0670.3
GROUND
DISTRIBUTION
0670.4
.5 BL/BR12 X17
FUSE DETAILS
0670.3 FUSE DETAILS
0670.3
42
FUSE DETAILS
0670.3
.5 RT/BL
+#)
21
F4615AF215AF3830AF1030AF275A
31 X1170
X19003
.35 RT/BL .35 RT/BL
X1170

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28 X1170
.5 BR/SW
23 X11765
18194231
.5 BR/BL.75 BR/WS.75 BR/
GN/GE.75 BR/RT.5 BR/GN.5 BR/WS/GE
262524223136 X1170
.5 WS/VI
41
20 X1176
2.5 RT/GN/GE
A52
SLIP CONTROL
MODULE
(ABS/ASC)
Y1w
ABS HYDRAULIC
UNIT
6) RIGHT REAR
OUTLET VALVE
7) RIGHT REAR
INLET VALVE
8) LEFT REAR
OUTLET VALVE
9) LEFT REAR
INLET VALVE
10) RIGHT FRONT
OUTLET VALVE
11) RIGHT FRONT
INLET VALVE
12) LEFT FRONT
OUTLET VALVE
13) LEFT FRONT
INLET VALVE
14) PUMP MOTOR
15) SEPARATOR
VA LV E A52
SLIP CONTROL
MODULE
(ABS/ASC)
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4 TXD
16 24 25
.5 BR/
BL/GE.5 BR/GR/
GE.75 BR/SW/
GE
29 27 22
17
19
13 12 11 10 8 9 6 7 15
14
GROUND
DISTRIBUTION
0670.4
515X1170
X19002
.35 RT/BL
.75 RT/GN/GE
2.5 RT/GN/GE 2.5 RT/BL/GE
DATA LINK
0670.5
+#)
2
GROUND
DISTRIBUTION
0670.4
+##((
GROUND
DISTRIBUTION
0670.4
X1652
X16523 X1170






SLIP CONTROL (ABS/ASC) !""


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3211133412331435 X1170
12X11421 X14221X11321 X143
B2
LEFT FRONT
SPEED SENSOR –
ABSB4
LEFT REAR SPEED
SENSOR – ABSB1
RIGHT FRONT
SPEED SENSOR –
ABSB3
RIGHT REAR
SPEED SENSOR –
ABS
LEFT FRONT
PULSE WHEELA52
SLIP CONTROL
MODULE
(ABS/ASC)
LEFT REAR PULSE
WHEELRIGHT FRONT
PULSE WHEELRIGHT REAR
PULSE WHEEL .5 BR .5
BR/
RT.5 BL .5
BR.5 GE .5
BR.5 GE/SW .5
GE/
BR
33
&#&#
&#
&#&#
&#
+"(&&
4–CYLINDER
+#$#)

SLIP CONTROL (ABS/ASC)4–CYLINDER





 !""


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5P90
FRONT POWER
DISTRIBUTION BOX
.5 GR/RT
S6
ASC SWITCH
1) OFF
2) ON
6
.35 SW
A52
SLIP CONTROL
MODULE
(ABS/ASC)X521
4 6
39 X1170
FUSE DETAILS
0670.3
2 X521
LIGHT SWITCH
DETAILS
6300.058g
GROUND
DISTRIBUTION
0670.4 .5 BL/VI
7 .35 GE
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
8685X8500
A6000
ENGINE CONTROL
MODULE (DME)
8586
.35 SW.35 GE .35 GE.35 SW79
X6000
.5 SW/WS
X7845
X7846
.35 GE .35 SW
2 X20
1
37
9
2X10017
CAN LOW CAN HIGH
12
F215A
+#$#)
.5 WS/GN
9830X1170
1 3212
31X1652
X10239
.5 WS/BR .5 WS/RT .5 WS/GE
R31
AUXILIARY
THROTTLE
POSITION SENSOR2.5 SW/GN/GE 2.5 SW/BR/GE
X10094
M93
AUXILIARY
THROTTLE
POSITION MOTOR
(ADS)






X170
X1161
SLIP CONTROL (ABS/ASC) !""


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K75
ABS PUMP MOTOR
RELAY
21


3450.1-05
2.5 RT/BL/GE
32X10018
1 X78
.5 GR/SW/GE
X181
1.5 BL/RT
2X1001720X1001514X1001716X10018
11
2 X78
685X54
692
429 X54
48 X1161
23 X16
32
BRAKE LIGHTS
6325.0
X1164
.5 BR/SW
351333
X1171
2.5 RT/BL/GE
.5 GN/BL/GE
.75 BL/RT.5 GN/BL/GE
A52
SLIP CONTROL
MODULE
(ABS/ASC) S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED
2.5 RT/BL/GE
X195
.5 GR/SW/GE
.5 BR/GR 2.5 RT/GN/GE
.5 GR/SW/GE
X170
K10
ABS RELAYA2w
INSTRUMENT
CLUSTERP90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3
GROUND
DISTRIBUTION
0670.4FUSE DETAILS
0670.3
2.5 RT/BL/GEGROUND
DISTRIBUTION
0670.4
F4615AF215AF1030AF275AF3830A
.5 BL/BR12 X17
X10100
.5 BL/BR
3450.1-05
V7
ASC DIODE
2.5 RT/BL/GE 2.5 RT/BL/GE
21 X10099
1 X10098
.5 BL/BR
FUSE DETAILS
0670.3 FUSE DETAILS
0670.3 FUSE DETAILS
0670.3
2.5 RT/BL/GE 2.5 RT/
BL/GE
Z3 ROADSTER 6–CYLINDER

 !""


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52 X117134
.5 BR/GR.5 GR/
SW/GE
5049X1171
21
.5 BL
2223
X1176
2.5 RT/BL/GE
5
18194231
.75 BR/BL.75 BR/WS1 BR/
GN/GE1 BR/RT.75 BR/GN.75 BR/WS/GE
17183754224087 X1171.5 WS/GE.5 WS/VI
119X1171
20 X1176
X170
2.5 RT/GN/GE
A52
SLIP CONTROL
MODULE
(ABS/ASC)
Y1w
ABS HYDRAULIC
UNIT
3) PUMP MOTOR
SENSOR
6) RIGHT REAR
OUTLET VALVE
7) RIGHT REAR
INLET VALVE
8) LEFT REAR
OUTLET VALVE
9) LEFT REAR
INLET VALVE
10) RIGHT FRONT
OUTLET VALVE
11) RIGHT FRONT
INLET VALVE
12) LEFT FRONT
OUTLET VALVE
13) LEFT FRONT
INLET VALVE
14) PUMP MOTOR
15) SEPARATOR
VA LV E A52
SLIP CONTROL
MODULE
(ABS/ASC)
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4 RXD TXDDATA LINK
0670.5
SHIELD
16 24 25
.75 BR/
BL/GE.75 BR/
GR/GE1 BR/
SW/GE
36 39 55
3450.1-04
44 .5 BL/BR
17
2.5 RT/BL/GE2.5 RT/
BL/GE
3
13 12 11 10 8 9 6 7 153
14
GROUND
DISTRIBUTION
0670.4 GROUND
DISTRIBUTION
0670.4
X1166
16