engine BMW Z3M ROADSTER 1998 E36 Electrical Troubleshooting Manual






ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R) !""



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K6300
ENGINE CONTROL
MODULE RELAY
425V (15)
.5 GE22
.5 SW52A8500
TRANSMISSION
CONTROL MODULE
(EGS)
X63002
1.5 RT/WS
ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20
X6821
87
4 RT/WS

54
X8500
31
W8505
SHIELD UP TO
10mm BEFORE
ELECTRONIC
TRANSMISSION
OUTPUT SHAFT
SPEED SENSOR
(EGS)
8283
.5 BL
.5 VI
85
85
X600086
86
.35 SW .35 GEA6000
ENGINE CONTROL
MODULE (DME)
CAN-LOW CAN-HIGH
X8500
76
.35 SW .35 GEA52
SLIP CONTROL
MODULE
(ABS/ASC)
X7845
X7846
1.5 RT/WS
55
53
.5 RT
CAN-LOW CAN-HIGH CAN-LOW CAN-HIGH
1X202.35 GE .35 SW
.35 SW
.35 GE
4–CYLINDER
X1170






ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20
 !""ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)



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15A8500
TRANSMISSION
CONTROL MODULE
(EGS)
18
X8507
1 17
S8507
KICK–DOWN
SWITCH
1) NORMAL
2) ACCELERATOR
PEDAL FULLY
DEPRESSED .75 GR/GE
.75 SW
634
GROUND
DISTRIBUTION
0670.4
X69
A6000
ENGINE CONTROL
MODULE (DME)
36 46
.5 SW/BL80 40
.5 SWX8500
2888
.5 WS/VI
TXD
10 .5 BL/RT2525X16
5A2w
INSTRUMENT
CLUSTER
.5 GR/BR
.5 GR/BR
X8500
DATA LINK
0670.5
X6000
TD X8015
AC
X8056
.5 SW
.5 SW/BL
X6912
30
&#&#1 2
11
48
S30
BRAKE LIGHT
SWITCH
3) BRAKE PEDAL
DEPRESSED
(TEST)
4) BRAKE PEDAL
RELEASED
(NORMAL)X783
4 3
X784
.5 BR/GR
.5 BR/GR
GROUND
DISTRIBUTION
0670.4
3030
&#
X181
P90
FRONT POWER
DISTRIBUTION BOX
F4615A
X1001832
S30
BRAKE LIGHT SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSEDX781
1 2
X782
.75 BL/RT 1.5 BL/RT
FUSE DETAILS
0670.3
+( '
15
BRAKE LIGHTS
6325.0
+#$#)
4–CYLINDER

ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)





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A8500
TRANSMISSION
CONTROL MODULE
(EGS)
20 13X8500
12
.5 GE/BL
3 13
.5 GE/BL
NOT USED .5 GE/BLX8565
1
24 22 X69
5 X8503
.5 GE/WS .5 GE/GN
A
X85032S8503
PROGRAM SWITCH
0) OFF
1) AUTOMATIC
2) MANUAL
GROUND
DISTRIBUTION
0670.4
X1001712P90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3
23
452717
X8564X8576
ES
.5 GE/WS .5 GE/GN.5 GE/WS .5 GE/GN .5 GE/BLM
M
.5 GE/BR .5 GE/WS
26 X8500
POWER
DISTRIBUTION
0670.2
X6410
6 RT
1RT
ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20
F2610A
31
&#
15
&#
15
&#
15
NOT USED
0
2 1
+#$#)
4–CYLINDER

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19
3450.0-01
3450.0-02
3450.0-00
3450.0-00 K10
ABS RELAY
Y1
ABS HYDRAULIC
UNITP90
FRONT POWER
DISTRIBUTION BOX
K75
ABS PUMP MOTOR
RELAY
A7
SLIP CONTROL
MODULE (ABS)
29 X11
26 X11
TXD
X1128
12724233940 2522 2
S30
BRAKE LIGHT
SWITCH
F4615A
3716
B2
LEFT FRONT
SPEED SENSOR –
ABS34 13
B4
LEFT REAR SPEED
SENSOR – ABS15 3635 1441
3450.0-02
3450.0-00
3450.0-00
3450.0-02
B1
RIGHT FRONT
SPEED SENSOR –
ABS3450.0-02
B3
RIGHT REAR
SPEED SENSOR –
ABS
17
9


42F27
5A
A2w
INSTRUMENT
CLUSTER 3450.0-00
NOT USED
8
RXD 7
5
3450.0-01
32
A6000
ENGINE CONTROL
MODULE (DME)
F215AF1030AF3830A
3450.0 SLIP CONTROL (ABS)

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9X1123
.5 BR/GR
7X31
2.5 RT/BL/GE
3
1112109812
.5 RT/BR/GE.5 BR/BL.5 BR/WS.5 BR/GN/GE.5 BR/RT.5 BR/GN.5 BR/WS/GE
2724394025222X11
1726
X170
4 X31
X170
2.5 RT/GN/GE
A7
SLIP CONTROL
MODULE (ABS)
Y1
ABS HYDRAULIC UNIT
6) INLET VALVE
REAR AXLE
7) OUTLET VALVE
REAR AXLE
8) RIGHT FRONT
OUTLET VALVE
9) LEFT FRONT
OUTLET VALVE
10) RIGHT FRONT
INLET VALVE
11) LEFT FRONT
INLET VALVE
13) OVER –VOLTAGE
PROTECTION
14) PUMP MOTOR
A7
SLIP CONTROL
MODULE (ABS)
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4 6 789 10 11
14 13
41X11
GROUND
DISTRIBUTION
0670.4
X1055
.75 RT/GN/GE 2.5 RT/GN/GE
5
GROUND
DISTRIBUTION
0670.4
.75 BR/RT
32
2 X20
15 X6000
.5 BR/RT
A6000
ENGINE CONTROL
MODULE (DME)

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#""$
F215A
3450.1-01
3450.1-03
3450.1-00
Y1
ABS HYDRAULIC
UNITP90
FRONT POWER
DISTRIBUTION BOX
K75
ABS PUMP MOTOR
RELAY
A52
SLIP CONTROL
MODULE
(ABS/ASC)
17 X1170
41 X1652
TXD 36


F1030AF275A
A2w
INSTRUMENT
CLUSTER
425283129
S30
BRAKE LIGHT
SWITCH F38
30AF4615A
3
3450.1-00
3450.1-00
32 11
B2
LEFT FRONT
SPEED SENSOR –
ABS 3450.1-0234 13
B4
LEFT REAR SPEED
SENSOR – ABS 3450.1-0233 12
B1
RIGHT FRONT
SPEED SENSOR –
ABS 3450.1-0235 14
B3
RIGHT REAR
SPEED SENSOR –
ABS 3450.1-023776
A6000
ENGINE CONTROL
MODULE (DME) 3450.1-03A8500
TRANSMISSION
CONTROL MODULE
(EGS) 3450.1-03
272226252423214
F215A
S6
ASC SWITCH 3450.1-03
39
LIGHT SWITCH
DETAILS
6300.0
4043450.1-00
58g
X1175
4–CYLINDER
15
2
X1170X1652X1652X1170
8930
3450.1-03R31
AUXILIARY
THROTTLE
POSITION SENSOR
31
3450.1-03M93
AUXILIARY
THROTTLE
POSITION MOTOR
(ADS)
19X1652X1170X1170
3450.1 SLIP CONTROL (ABS/ASC)

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#""$
35
F215A
3450.1-05
3450.1-06
3450.1-04 K10
ABS RELAY
Y1
ABS HYDRAULIC
UNITP90
FRONT POWER
DISTRIBUTION BOX
K75
ABS PUMP MOTOR
RELAY
A52
SLIP CONTROL
MODULE
(ABS/ASC)
32 X1171
RXD
TXD 8
7


F1030AF275A
A2w
INSTRUMENT
CLUSTER
2165049524436
S30
BRAKE LIGHT
SWITCH F38
30AF4615A
1
3450.1-04
3450.1-04 3450.1-04
21
M93
AUXILIARY
THROTTLE
POSITION MOTOR
(ADS) 3450.1-062023 42
R31
AUXILIARY
THROTTLE
POSITION SENSOR 3450.1-08 43
30 48
B2
LEFT FRONT
SPEED SENSOR –
ABS 3450.1-0746 29
B4
LEFT REAR SPEED
SENSOR – ABS 3450.1-0747 11
B1
RIGHT FRONT
SPEED SENSOR –
ABS 3450.1-0745 10
B3
RIGHT REAR
SPEED SENSOR –
ABS 3450.1-07525426
A6000
ENGINE CONTROL
MODULE (DME) 3450.1-08
6
39551718372254403451
F1030AF215A
S6
ASC SWITCH 3450.1-06
27
LIGHT SWITCH
DETAILS
6300.0
33
V7
ASC DIODE 3450.1-04
13
3450.1-04
58g
X1171
6–CYLINDER – Z3 ROADSTER
4115
3450.1-06
19 X11713
A8500
TRANSMISSION
CONTROL MODULE
(EGS) 3450.1-08
SLIP CONTROL (ABS/ASC)

3450.1-09
3450.1-10
3450.1-12
 !""
#""$
3
3450.1-11
3450.1-10
Y1
ABS HYDRAULIC
UNITP90
FRONT POWER
DISTRIBUTION BOX
K94
ENGINE CONTROL
RELAY (ABS/ASC)
A52
SLIP CONTROL
MODULE
(ABS/ASC)
48 X1175
TXD 46
2619302
S30
BRAKE LIGHT
SWITCH F49
50AF4615A
55
3450.1-12
53
M93
AUXILIARY
THROTTLE
POSITION MOTOR
(ADS) 3450.1-092339 43
R31
AUXILIARY
THROTTLE
POSITION SENSOR 3450.1-09 67
10 36
B2
LEFT FRONT
SPEED SENSOR –
ABS 3450.1-1312 13
B4
LEFT REAR SPEED
SENSOR – ABS 3450.1-1314 15
B1
RIGHT FRONT
SPEED SENSOR –
ABS 3450.1-1311 38
B3
RIGHT REAR
SPEED SENSOR –
ABS 3450.1-1388778118
A6000
ENGINE CONTROL
MODULE (DME) 3450.1-12
76
3354275225634493151
F1030AF135A
S6
ASC SWITCH 3450.1-12
44
LIGHT SWITCH
DETAILS
6300.058g
X1175
203529 X117528
S31
PARK BRAKE
SWITCH 3450.1-09
P95
AUXILIARY FUSE
BOX
F3830A
P90
FRONT POWER
DISTRIBUTION BOX
3450.1-09
A2w
INSTRUMENT
CLUSTER
M ROADSTER
37


7124
G6509
GENERATOR
F275A
K95
VALVE RELAY
(ABS/ASC) 3450.1-10
1230.0 D +
83
NOT USED
SLIP CONTROL (ABS/ASC)


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Pin Assignments (M Roadster)
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E = Input, A = Output, M = Ground
X1175
Pin Type Description/Function Connection
56
EVoltage supplyFuse 13
57ALeft front inlet valveABS hydraulic unit
58AVoltage supplyValve – Engine control relay
59Not used
60Not used
61ARight rear inlet valveABS hydraulic unit
62AActivare relayEngine control relay
63Not used
64Not used
65MSensor groundLeft front speed sensor (ABS)
66ESpeed signalRight rear speed sensor (ABS)
67MSensor groundLeft rear speed sensor (ABS)
68ESpeed signalLeft rear speed sensor (ABS)
69MSensor groundRight front speed sensor (ABS)
70ESpeed signalRight front speed sensor (ABS)
71Not used
72Not used
73EEngine signal 1Engine control module (DME)
74ERelay activation feedbackEngine control relay
75ESpeed signalEngine control module (DME)
76Not used
77Not used
78AADS step motor (+)ADS step motor
79ECharge indicatorGenerator
80ALeft rear outlet valveABS hydraulic unit
81AShut-off valve (ASC)ABS hydraulic unit
82ARight front outlet valveABS hydraulic unit
83MGroundGround point
84MGroundGround point
85AABS lamp controlInstrument cluster


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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