BMW Z3M ROADSTER 2000 E36 Electrical Troubleshooting Manual








Pin Assignments




E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
30
Not used
31Not used
32Not used
33AAir bag II (+)Passenger’s air bag gas generator
34ACrash signalBody electronics control module (ZKE IV)
35Not used
36Not used
37Not used
38Not used
39Not used
40AAir bag II (–)Passenger’s air bag gas generator
41Not used
42Not used
43Not used
44Not used
45Not used
46Not used
47Not used
48Not used
49ABattery safety terminal (+)Battery safety terminal
50ABattery safety terminal (–)Battery safety terminal



SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)












X1614
FUSE DETAILS
0670.3
A2w
INSTRUMENT
CLUSTER
10) AIR BAG X16
23
.5 GE/SW.5 GE/BR
1 X7832
G5
DRIVER’S AIR BAG
GAS GENERATOR
C101
CONTACT RING
14
34
.35 BR/SW
6
GROUND
DISTRIBUTION
0670.4
5
FUSE DETAILS
0670.3 22P90
FRONT POWER
DISTRIBUTION BOX
10 11
F275A



7
.5 BR/VI
CA
X10018
F4115A
10
1 X9997
2
R
ABF+ ABF– 31THE DRIVER’S AND
PASSENGER’S
AND THE SIDE AIR
BAG GENERA-
TORS AND THE
PYROTECHNICAL
BELT TENSIONERS
AND THE BATTERY
SAFETY TERMINAL
ARE FITTED WITH
SHORTING
BRIDGES.THE BRIDGES SHORT
THE GENERATOR
LEADS TOGETHER TO
PREVENT UNINTEN-
TIONAL TRIGGERING
OF THE IGNITER
WHEN WORKING ON
THE AIR BAG SYSTEM.
X10017
X132537A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
X74
AWL
G6
PASSENGER’S AIR
BAG GAS
GENERATOR
33 40
3 X7824 .5 WS/SW
.5 WS/BR.5 BL.5 BR
1 X17702
G19
BATTERY SAFETY
TERMINAL
49 50
1 X104672 .5 BL.5 BR
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
X74
.5 GR/SW.5 GR/BR
34
26 27
34
ABF2+ ABF2–
13 14
12 .5 BL/SW
.5 BL/BR
G1
BATTERY
ABBF2+ ABBF2–ABBF+ ABBF–BPT+ BPT–
POWER
DISTRIBUTION
0670.2
50 RT
Z3 ROADSTER
LATE PRODUCTION7.5A
50 RT

.5 RT.5 SW.5 RT.5 SW
910X275910X279


SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)
SIDE AIR BAG












A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
.35 WS/BL
20
G14
LEFT SIDE AIR BAG
GAS GENERATOR
16 17
.5 BL .5 BR
1
B78
DRIVER’S SIDE IM-
PACT SENSOR
.5 GE
33
B79
PASSENGER’S
SIDE IMPACT
SENSOR
1X1885
GROUND
DISTRIBUTION
0670.4
25 26
.5 BR
12
G15
RIGHT SIDE AIR
BAG GAS
GENERATOR
1819
.5 GE .5 BR
25 26
.5 BR
12
.5 BLX257
X1883
X256
X1884
X1886
GROUND
DISTRIBUTION
0670.4
21 .35 WS/GE
X1441
THE DRIVER’S AND
PASSENGER’S AND
THE SIDE AIR BAG
GENERATORS AND
THE
PYROTECHNICAL
BELT TENSIONERS
AND THE BATTERY
SAFETY TERMINAL
ARE FITTED WITH
SHORTING
BRIDGES.
.5 GE/RT
G12
DRIVER’S SIDE
PYROTECHNICAL
BELT TENSIONER
12
.5 GE/RT .5 GE/BR
12
.5 GE/BR
1 2
X10214
X10216
THE BRIDGES SHORT
THE GENERATOR
LEADS TOGETHER TO
PREVENT UNINTEN-
TIONAL TRIGGERING
OF THE IGNITER
WHEN WORKING ON
THE AIR BAG SYSTEM.
X1441
.5 GE/RT
G13
PASSENGER’S
SIDE
PYROTECHNICAL
BELT TENSIONER
34
.5 BL/RT .5 BR
12
.5 GE/BR
21
X10215
X10217
X74
DATA LINK
0670.5
X749
.5 WS/VI
Z3 ROADSTER
LATE PRODUCTION

X2798X275778
56X2755X279
4
12


SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)











2
FUSE DETAILS
0670.3 14






X10017
F275A
X1714
.5 BL/VI/GE
1
GROUND
DISTRIBUTION
0670.4
X778
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
A2w
INSTRUMENT
CLUSTER
4
FUSE DETAILS
0670.3 22P90
FRONT POWER
DISTRIBUTION BOX
X10018
F4115A
X7783
S58
DRIVER’S SEAT
BELT SWITCH






3
GROUND
DISTRIBUTION
0670.4
X18518
X185181
S59
PASSENGER’S
SEAT BELT SWITCH
X748
.5 BR/GN/WS .5 BL/WS/GE 23 X16
7.5AZ3 ROADSTER
LATE PRODUCTION
Z3 ROADSTER
LATE PRODUCTION



SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)











FUSE DETAILS
0670.3 24
P90
FRONT POWER
DISTRIBUTION BOXF425A
15 .5 WS/RT
3
A113
SEAT OCCUPANCY
DETECTOR
SBEX10218
2
1X10218
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
GROUND
DISTRIBUTION
0670.4
X10018
X74






12
X91009
I1008
SEAT MAT
FUSE DETAILS
0670.3 22
F417.5A
Z3 ROADSTER
LATE PRODUCTIONM VERSIONS AND
Z3 VERSIONS EAR-
LY PRODUCTION

                   
                                       
10/993450.1a2000
3
3450.1-013450.1-02
3450.1-00
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
3450.1-03
53
M93
AUXILIARY
THROTTLE
POSITION MOTOR 3450.1-022339 43
R31
AUXILIARY
THROTTLE
POSITION
SENSOR 3450.1-02 67
10 36
B2
LEFT FRONT SPEED
SENSOR – ABS 3450.1-0412 13
B4
LEFT REAR
SPEED SENSOR –
ABS 3450.1-0414 15
B1
RIGHT FRONT SPEED
SENSOR – ABS 3450.1-0411 38
B3
RIGHT REAR SPEED
SENSOR – ABS 3450.1-0488778118
A6000
ENGINE CONTROL
MODULE (DME) 3450.1-08
76
3354275225634493151
F1030AF135A
S6
ASC SWITCH 3450.1-03
44
LIGHT SWITCH
DETAILS
6300.0
3450.1-03
58g
X1175
2035
3450.1-06
29 X117528
S31
PARK BRAKE
SWITCH 3450.1-02
P95
AUXILIARY FUSE
BOX
F3830A
P90
FRONT POWER
DISTRIBUTION
BOX
3450.1-02
A2w
INSTRUMENT
CLUSTER
M VERSIONS
37
ABS
7124
G6509
GENERATOR
F275A
K95
VALVE RELAY
(ABS/ASC) 3450.1-00
3450.1-00
1230.0 D +
3450.1 SLIP CONTROL (ABS/ASC)

                   
                                       
10/993450.1b2000
F215A
3450.1-06P90
FRONT POWER
DISTRIBUTION
BOX
A52
SLIP CONTROL
MODULE
(ABS/ASC)
13 X1170
8 X1170
TXD 7ABS
F275A
A2w
INSTRUMENT
CLUSTER
S30
BRAKE LIGHT
SWITCH F10
30AF4615A
3450.1-05
3450.1-05
12
B2
LEFT FRONT SPEED
SENSOR – ABS 3450.1-075 6
B4
LEFT REAR
SPEED SENSOR –
ABS 3450.1-0719 20
B1
RIGHT FRONT SPEED
SENSOR – ABS 3450.1-0723 22
B3
RIGHT REAR SPEED
SENSOR – ABS 3450.1-07211110
A6000
ENGINE CONTROL
MODULE (DME) 3450.1-06A2w
INSTRUMENT
CLUSTER 3450.1-06
9
F215A
S6
ASC SWITCH 3450.1-06
14
LIGHT SWITCH
DETAILS
6300.0
1643450.1-05
58g
X1170
Z3 VERSIONS
24
F3830A
25
SLIP CONTROL (ABS/ASC)






Pin Assignments






E = Input, A = Output, M = Ground
X1175
Pin Type Description/Function Connection
51
EVoltage supplyFuse 13
52ALeft front inlet valveABS hydraulic unit
53AVoltage supplyValve – Engine control relay
54Not used
55Not used
56ARight rear inlet valveABS hydraulic unit
57AActivate relayEngine control relay
58Not used
59Not used
60MSensor groundABS speed sensor, left front
61ESpeed signalABS speed sensor, right rear
62MSensor groundABS speed sensor, left rear
63ESpeed signalABS speed sensor, left rear
64MSensor groundABS speed sensor, right front
65ESpeed signalABS speed sensor, right front
66Not used
67Not used
68EEngine signal 1Engine control module (DME)
69ERelay activation feedbackEngine control relay
70ESpeed signalEngine control module (DME)
71Not used
72Not used
73AADS step motor (+)ADS step motor
74ECharge indicatorGenerator
75ALeft rear outlet valveABS hydraulic unit
76AShut-off valve (ASC)ABS hydraulic unit
77ARight front outlet valveABS hydraulic unit
78MGroundGround point
79MGroundGround point
80AABS lamp controlInstrument cluster






Pin Assignments






E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
81
AASC lamp controlInstrument cluster
82Not used
83ALeft front outlet valveABS hydraulic unit
84ARight rear outlet valveABS hydraulic unit
85ARight rear speed signalEngine control module (DME)
86ESpeed signalABS speed sensor, left front
87AActivate relayValve relay
88MSensor groundABS speed sensor, right rear
89AThrottle position sensor (–)Auxiliary throttle position sensor
90Not used
91Not used
92Not used
93AThrottle position sensor (+)Auxiliary throttle position sensor
94EASC-ON-signalASC switch
95Not used
96E/ATXD signalDiagnostic link
97Not used
98EBrake signalBrake light switch
99AChangeover valve (ASC)ABS hydraulic unit
100Not used
101EVoltage supplyFuse 10
102ALeft rear inlet valveABS hydraulic unit
103AADS step motor (–)ADS step motor
104ARight front inlet valveABS hydraulic unit
105MGroundGround point
106Not used
107Not used
108Not used
109Not used
11 0Not used
111Not used
11 2Not used






Pin Assignments






E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
11 3
Not used
11 4Not used
11 5Not used
11 6Not used
11 7EASC throttle flap signalAuxiliary throttle position sensor
11 8Not used
11 9Not used
120Not used
121Not used
122Not used
123Not used
124Not used
125Not used
126ESignal park brake setPark brake switch
127EEngine signal 3Engine control module (DME)
128Not used
129Not used
130Not used
131EEngine signal 2Engine control module (DME)
132Not used
133Not used
134Not used
135Not used
136Not used
137Not used
138EThrottle flap positionEngine control module (DME)