BMW Z3M ROADSTER 1998 E36 Electrical Troubleshooting Manual






ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER M52/S52) !""


#""$



A6000
ENGINE CONTROL
MODULE (DME)
41 64 6543
B6204
CAMSHAFT
POSITION SENSOR
(CYLINDER
IDENTIFICATION) .35 SW .35 GE
W6204
SHIELD UP TO
10mm BEFORE
CAMSHAFT
POSITION SENSOR
(CYLINDER
IDENTIFICATION) .35 BR
1 X6204
3 2
57 58
.5 GE .5 SW
2 138 59 63
.5 GN .5 BR
4 3
W9110
SHIELD
X6240
CYL. 4–6 CYL. 1–3
B6240
KNOCK SENSOR
83 4048
B6203
CRANKSHAFT
POSITION/RPM
SENSOR .35 SW .75 BR/SW
W6203
CRANKSHAFT
POSITION/RPM
SENSOR SHIELD .5 GE
3 1 2
X6454
X6475.5 BR/SW
1210.17-04
.35 BRGROUND
DISTRIBUTION
0670.4
X6203
X6000






ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER M52/S52)
1
 !""


#""$


6
FUSE DETAILS
0670.3
X600016
4 X10054
X1271
4 X127
A6000
ENGINE CONTROL
MODULE (DME)
.5 SW/GR
X20
5 .5 SW/GR
.5 SW/GR
B8y
PRESSURE SWITCH
1) PRESSURE
BELOW 21 BAR
2) PRESSURE
ABOVE 30 BAR
3) PRESSURE
ABOVE 2.6 BAR
4) PRESSURE
BELOW 1.5 BAR
.5 VI
P90
FRONT POWER
DISTRIBUTION BOX
4 X51
FUSE DETAILS
0670.3
2X515
.75 SW
.5 SW/BL
A6000
ENGINE CONTROL
MODULE (DME)
K19
COMPRESSOR
CONTROL RELAY
X600074
X204
.5 SW/BL
K21
NORMAL SPEED
RELAY
1
Y2
AIR CONDITIONING
COMPRESSOR
1) NORMAL
TEMPERATURE
2) HIGH
TEMPERATURE
30 86
87 85
X525
B9508
PRESSURE
SWITCH 85b
X163
X1022
.5 SW/GR
.5 SW/GE X10018
18X1001612
F397.5AF165A
2
12
34
5 X18350S221
EVAPORATOR
CONTROLLER
1 X10241M ROADSTER
1 VI
M ROADSTER
Z3 ROADSTER

ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER M52)
X16
 !""


#""$



85X600086 3660 88 X6000
X6002
.35 SW
TDA6000
ENGINE CONTROL
MODULE (DME)
.35 GE
8586 X8500A8500
TRANSMISSION
CONTROL MODULE
(EGS) 18.5 GN/BL
D100
DATA LINK
CONNECTOR
20A2w
INSTRUMENT
CLUSTER
3) ENGINE SPEED
INPUT
.35 SW
20 X20
.5 SW .5 SW
X8015
31 .5 SW
X165912
.5 SW
X1047
TXD2
X60021
D100
DATA LINK
CONNECTOR
3X6860
X1171
A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II)
41
.5 SW
.5 GN/BLR
.5 SW
17
.5 WS/VI/GE
PGSP
A52
SLIP CONTROL
MODULE
(ABS/ASC)
X8090
.35 GE
1 X20
X8091
.35 SW
2 X20
NOT USEDNOT USED CAN-H CAN-L
.35 SW.35 GE






CAN-HIGH CAN-LOW
X6869DATA LINK
0670.5
.5 WS/VI/GE
.5 WS/VI/GE
Z3 ROADSTER






ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER M52)
.5 VI/GR
 !""


#""$


X102454
7
9 24
82
3
.35 WS/SW
18
.5 GN
Ti
5
A52
SLIP CONTROL
MODULE
(ABS/ASC)

31A6000
ENGINE CONTROL
MODULE (DME)
1) DRIVE–AW AY
PROTECTION X6000
19
5 X10054
.5 SW/VI
6 X20
3 X18350
S221
EVAPORATOR
CONTROLLER
.5 WS/RT/GE 4 X1659
.5 WS/SW
1
A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II)

2.5 GN
81
X69
7
X1171
25X6000
45
5
26 .5 WS/GR/GE
80
6
4
.5 WS/GN .5 WS/GR
.5 WS/RT/GE .5 WS/GR/GE .5 WS/GN .5 WS/GR
15
15 .5 BR/RT
.5 BR/RT
3131
A35y
BOARD
COMPUTER
(BC – LOW)

X183492
S220
AIR CONDITION-
ING/RECIRCULAT-
ING SWITCH
ASSEMBLY

X189
9X20
1 SW/VI 1 SW/VI
1 SW/VI
Z3 ROADSTER






ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER M52) !""


#""$


2.5 RT/WS
X65001
GROUND
DISTRIBUTION
0670.4
4 X6500
2 6 8 X6301
69X6301
4
2.5 GN/VI.5 BR/GN
M2
FUEL PUMP
A6000
ENGINE CONTROL
MODULE (DME)
K6301
CYL. 1–6 FUEL
PUMP RELAY &
$)$' $(
X6000
X13032
25
X6822
6775
1210.17-05
71 79 77
124 3
X6210
X6210
B6210y
OXYGEN SENSOR
(IN FRONT OF
CATALYTIC
CONVERTER)
2 14 3
X6220
X6220
B6220y
OXYGEN SENSOR
(BEHIND
CATALYTIC
CONVERTER) .5 RT/WS
.5 SW .5 GE .5 SW.5 GE .5 BR
1210.17-00
13
16
X100166
P90
FRONT POWER
DISTRIBUTION BOX
5 X10016
FUSE DETAILS
0670.3FUSE DETAILS
0670.3
F135AF1815A
14 X20
1 RT/WS
.5 RT/WS
.5 RT/WS
52
X203
.5 GN/VINOT USED(PARTIAL)
.5 BR .5 GR/VI
X80253
.5 BR
Z3 ROADSTER






ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER S52) !""


#""$

2.5 RT/WS
X65001
GROUND
DISTRIBUTION
0670.4
4 X6500
2 6 8 X6301
69X6301
4
2.5 GN/VI.5 BR/GN
M2
FUEL PUMP
A6000
ENGINE CONTROL
MODULE (DME)
K6301
CYL. 1–6 FUEL
PUMP RELAY &
$)$' $(
X6000
X13032
79
X6822
7177
1210.17-05
72 61 78
124 3
X62102
X62102
B62102
OXYGEN SENSOR
I (BEHIND
CATALYTIC
CONVERTER)
2 14 3
X62202
X62202
B62202
OXYGEN SENSOR
II (BEHIND
CATALYTIC
CONVERTER) .5 RT/WS
.5 SW .5 GE .5 SW.5 GE .5 BR
1210.17-00
13
16
X100166
P90
FRONT POWER
DISTRIBUTION BOX5 X10016
FUSE DETAILS
0670.3FUSE DETAILS
0670.3
F135AF1815A
14 X20
1 RT/WS
.5 RT/WS
.5 RT/WS
X20
.5 GN/VI(PARTIAL)
.5 BR
25677570 55 76
124 3
X62101
X62101
B62101
OXYGEN SENSOR
I (IN FRONT OF
CATALYTIC
CONVERTER)
2 14 3
X62201
X62201
B62201
OXYGEN SENSOR
II (IN FRONT OF
CATALYTIC
CONVERTER) .5 RT/WS
.5 SW .5 GE .5 SW.5 GE .5 BR
.5 BR
.5 RT/WS
M ROADSTER






ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER S52)
.5 VI/GR
 !""


#""$

X117520
7
3620
.35 SW
18
.5 GN
TD
A7
SLIP CONTROL
MODULE (ABS)

31X6000
19
5 X10054
.5 SW/VI
6 X20
3 X18350
S221
EVAPORATOR
CONTROLLER
4
1
A836
ELECTRONIC
IMMOBILIZER
CONTROL
MODULE
(EWS II)

2.5 GN
60
X6002
18
X11
X600088
17
.5 WS/VI/GE .5 GN/BL
15
32 .5 BR/RT
.75 BR/RT
3131
A52
SLIP CONTROL
MODULE
(ABS/ASC)

X183492
S220
AIR CONDITIONING/
RECIRCULATING
SWITCH ASSEMBLY

X189
2X20
1 SW/VI 1 SW/VI
1 SW/VI
X1620
.5 SW
3
X1047
X508
K33a
AIR CONDITIONING
RELAY, MOTRONIC

.5 SW/VI
X35
21.5 SW/VI
9 24
TI
31 .5 WS/SW
X8015
1
X6002D100
DATA LINK
CONNECTOR .5 SW .5 SW
.5 SW
TXD 2 PGSP R
.5 SW
12 X1659
.35 SW
82
9
18
80
10
81
81
11
77
45
12
88
X6031
A2w
INSTRUMENT
CLUSTER
3) ENGINE SPEED
INPUT
A6000
ENGINE CONTROL
MODULE (DME)
1) DRIVE–AW AY
PROTECTION
35X1175
D100
DATA LINK
CONNECTOR
A52
SLIP CONTROL
MODULE
(ABS/ASC) .5 BR/RT .75 SW/GN .75 SW/BR .75 SW/RT .75 WS/GN.75 SW/GR .75 SW/BR .75 SW/RT .75 WS/GN
WITH ASC WITH ABS
NOT USED
M ROADSTER

 !""

#""$
442078308546 X6000
1210.20-00
27K6300
ENGINE CONTROL
MODULE RELAY
T6151
CYL. 1 IGNITION
COIL
T6152
CYL. 2 IGNITION
COIL
S2
IGNITION
SWITCH
1210.20-03
31Y6101
CYL. 1 FUEL
INJECTION VALVE
Y6102
CYL. 2 FUEL
INJECTION VALVE
Y6103
CYL. 3 FUEL
INJECTION VALVE
Y6104
CYL. 4 FUEL
INJECTION VALVE 1210.20-01
26
1210.20-02
RXD
TXD 87
88
R6252
THROTTLE
POSITION
SENSOR 1210.20-05
B6205
INTAKE AIR
TEMPERATURE
SENSOR 1210.20-05
B6203
CRANKSHAFT
POSITION/RPM
SENSOR 1210.20-04
B62001
OXYGEN SENSOR
(IN FRONT OF
CATALYTIC
CONVERTER) 1210.20-04
Y6131
INTAKE AIR RES-
ONANCE CHANGE-
OVER VALVE
Y6120
EVAPORATIVE
EMISSION VALVE
Y6263
FUEL CHANGE-
OVER VALVE 1210.20-09
66
A8500
TRANSMISSION
CONTROL MODULE
(EGS) 1210.20-06A6000
ENGINE CONTROL
MODULE (DME)
50
T6153
CYL. 3 IGNITION
COIL
T6154
CYL. 4 IGNITION
COIL 1210.20-03
23
X6000

D100
DATA LINK
CONNECTOR
X6000
862853X6000
54
A8500
TRANSMISSION
CONTROL MODULE
(EGS) 1210.20-00
11
1210.20-08
S221
EVAPORATOR
CONTROLLER
1210.20-08
B9508
PRESSURE
SWITCH
1210.20-06
S36y
DOUBLE
TEMPERATURE
SWITCH
68
1210.20-06
K21
NORMAL SPEED
RELAY
57
G6430
B+ JUMP START
JUNCTION POINT1210.20-00
Y6130
IDLE SPEED
CONTROL VALVE 1210.20-01
29 X60002
.
.
B6209
HALL EFFECT CAM-
SHAFT SENSOR 1210.20-04
B6217
HOT FILM AIR
MASS METER
45
1210.20-06
1721
F1815A
P90
FRONT POWER
DISTRIBUTION BOX
M2
FUEL PUMPK6301w
FUEL PUMP RELAY
1210.20-021210.20-02
F135A
631210.20-026564
K6326
UNLOADER RELAY,
TERMINAL 15 1210.20-02
1210.20-05
A836
ELECTRONIC
IMMOBILIZER CONTROL
MODULE (EWS II)
10
A35y
BOARD COMPUTER
(BC – LOW)
838
A2w
INSTRUMENT
CLUSTER
4280
1210.20-08
S220
AIR CONDITION-
ING/RECIRCULAT-
ING SWITCH
ASSEMBLY
69
1210.20-08
S221
EVAPORATOR
CONTROLLER
F165AP90
FRONT POWER
DISTRIBUTION BOX 1210.20-08
36K19
COMPRESSOR
CONTROL RELAY
1210.20-08
86
85
19177
B6240
KNOCK SENSOR 1210.20-05
407071
B62002
OXYGEN SENSOR
(BEHIND
CATALYTIC
CONVERTER) 1210.20-04
74
B6232
ENGINE COOLANT
TEMPERATURE
SENSOR 1210.20-05
34 55679
A52
SLIP CONTROL
MODULE
(ABS/ASC) 1210.20-06
323
G6430
B+ JUMP START
JUNCTION POINT1210.20-09
1210.20-05
1210.20-07 1210.20-06
461 581210.20-01
B6247
CHARCOAL FILTER
SHUT–OFF VALVE 1210.20-02
56 49 22
Y6163
SECONDARY AIR
PUMP VALVE 1210.20-09K6304
SECONDARY AIR
PUMP RELAY
B65
FUEL TANK
PRESSURE
SENSOR 1210.20-05
72
Y6133
AIR PUMP 1210.20-09
1210.20-02
1210.20-09
60
D100
DATA LINK
CONNECTOR
16
1210.20 ENGINE CONTROL SYSTEM (DME M5.2, 4–CYLINDER M44)



#""$
Pin Assignments
 !""





E = Input, A = Output, M = Ground
X6000
Pin Type Description/Function Connection
89
AOxygen sensor heating (–)Oxygen sensor (behind catalytic converter)
90AActivate valveIdle speed control valve
91AActivate valveCyl. 1 fuel injection valve
92AActivate valveCyl. 4 fuel injection valve
93Not used
94MGround, fuel injection valve output stagesGround point
95Not used
96A“Check engine” indicator controlInstrument cluster
97Not used
98EDrive-away protection signalElectronic immobilizer control module
(EWS II)
99EActivate A/CPressure switch
100Not used
101Not used
102Not used
103Not used
104EIntake air temperatureIntake air temperature sensor
105MGroundHot film air mass meter
106Not used
107EOxygen sensor signalOxygen sensor (in front of catalytic
converter)
108ECrankshaft position/RPMCrankshaft position/RPM sensor
109ECamshaft positionHall effect camshaft sensor
11 0ACyl. 3 ignition coil controlCyl. 3 ignition coil
111ACyl. 4 ignition coil controlCyl. 4 ignition coil
11 2Not used
11 3Not used
11 4EBattery voltageB+ jump start junction point
11 5AEngine control module relay controlEngine control module relay, terminal 85
11 6MGround for electronics and shielding of
sensorsGround point



#""$
Pin Assignments
 !""





E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
11 7
AIdle speed control valve controlIdle speed control valve
11 8AOxygen sensor heatingOxygen sensor (in front of catalytic
converter)
11 9AActivate valveCyl. 3 fuel injection valve
120AActivate valveCyl. 2 fuel injection valve
121Not used
122MGround, remaining output stages (except
for ignition and fuel injection valves)Ground point
123Not used
124AA/C compressor cut-outCompressor control relay
125Not used
126Not used
127Not used
128ECyl. 3-4 knock sensorKnock sensor
129Not used
130ETI-measurement signal (fuel consumption)Instrument cluster
131Not used
132EThrottle positionThrottle position sensor
133ESignal inputHot film air mass meter
134MSensor groundOxygen sensors
135Not used
136Not used
137ACyl. 1 ignition coil controlCyl. 1 ignition coil
138ACyl. 2 ignition coil controlCyl. 2 ignition coil
139Not used
140Not used
141AComponent supply (+)Throttle position sensor/fuel tank pressure
sensors
142EBattery voltage from engine control module
relayEngine control module relay, terminal 87
143MGround, ignitionGround point
144EIgnition switch, terminal 15Ignition switch, terminal 15
145AActivate auxiliary fanNormal speed relay