1998 BMW Z3M ROADSTER Electrical Troubleshooting Manual



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Pin Assignments
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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



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Pin Assignments
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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



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Pin Assignments
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E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
146
AActivate valveIntake air resonance changeover valve
147Not used
148EProgramming voltageData link connector
149AActivate valveEvaporation emission valve
150Not used
151AActivate relayFuel pump relay
152AActivate air pumpSecondary air pump valve/relay
153AActivate valveCharcoal filter shut-off valve
154AActivate valveFuel changeover valve
155Not used
156ESignal above 80 CDouble temperature switch
157EA/C-ON-signalAir conditioning operating unit
158ECyl 1-2 knock sensorKnock sensor
159MGround for sensorsTemperature/knock/throttle position/fuel
tank pressure sensors
160EFuel tank pressureFuel tank pressure sensor
161Not used
162ETemperature signalEngine coolant temperature sensor
163Not used
164Not used
165EOxygen sensor signalOxygen sensor (behind catalytic converter)
166ECrankshaft position/RPMCrankshaft position/RPM sensor
167ERight rear speed signalABS/ASC control module
168ECrankshaft RPM speed signal TDInstrument cluster
169Not used
170Not used
171EVehicle speed signalBoard computer (BC-Low)
172Not used
173E/ACAN-LOWEGS/ASC control module
174E/ACAN-HIGHEGS/ASC control module
175ARxD diagnosis data lineData link connector
176E/ATxD diagnosis data lineData link connector

(PARTIAL)
&#







2.5 RT/
WS
POWER, FUEL INJECTION VALVES
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ENGINE CONTROL SYSTEM (DME M5.2, 4–CYLINDER M44)
POWER
DISTRIBUTION
0670.2
85 86
8730
K6300
ENGINE CONTROL
MODULE RELAY X6410
2.5 RT
4 8
6 X6300
26 27
2X6300
1 RT
.5 BR/WS
54 X6000
X600214
D100
DATA LINK
CONNECTOR
A6000
ENGINE CONTROL
MODULE (DME)
1 RT/WS 4 RT
1210.20-064 RT/WS
1.5 RT/WS.5 RT/WS X6821.5 RT/WS
55 26 X8500
A8500
TRANSMISSION
CONTROL MODULE
(EGS) 1.5 RT/WS1 RT 4 RT
.5 GN
1210.20-04 6 RT
2.5 RT/WS
541.5 RT/WS
1210.20-04
.35 RT/WS
31
.5 GN
G6430
B+ JUMP START
JUNCTION POINT
1210.20-02 1 RT/WS
X6430
1210.20-09

.5 BR/VIY6120
EVAPORATIVE
EMISSION VALVE
.5 RT/WS
1 X6120
2 X6120
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.5 BR
2
A6000
ENGINE CONTROL
MODULE (DME) .5 BR/BL Y6103
CYL. 3 FUEL
INJECTION VALVE
–+
– + Y6101
CYL. 1 FUEL
INJECTION VALVE
–+
Y6102
CYL. 2 FUEL
INJECTION VALVE
–+Y6104
CYL. 4 FUEL
INJECTION VALVE +
1615832 31X6000
1 X6101
.5 RT/WS
1 X6104
1 X6103
.5 RT/WS
1 X6102.5 RT/WS.5 RT/WS
2 X6130
2
X6102
2 X6103
2
X6104
2 X6101
.5 BR/GE
.5 BR/WSX6130
Y6130
IDLE SPEED
CONTROL VALVE X6820
.5 RT/WS
2.5 RT/WS
–
Y6131
INTAKE AIR RES-
ONANCE CHANGE-
OVER VALVE –+ 2
X6131
1X6131
2.5 RT/WS
.5 BR/GN .5 BR/BL
34
.5 BR/
GN
29
3
8 X609111 29
2.5 RT/WS 2.5 RT/WS .5 RT/WS
10 15 13 2012217
.5 BR .5 BR/BL .5 BR/GE
.5 BR/WS .5 BR/WS .5 BR/GE
.5 BR/
GNX6091
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ENGINE CONTROL SYSTEM (DME M5.2, 4–CYLINDER M44)
IGNITION COILS AND FUEL PUMP
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X203
2.5 GN
2.5 GNS2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
POWER
DISTRIBUTION
0670.2
7 2.5 GN
21X20
X33
1 X209
15






2
10
3
85 86
87 30
K6326
UNLOADER RELAY,
TERMINAL 15
2 6 8 X6326
56
4X6326
63 X6000
A6000
ENGINE CONTROL
MODULE (DME)
2.5 RT
POWER
DISTRIBUTION
0670.2
G6430
B+ JUMP START
JUNCTION POINT
2.5 GN
X6454
GROUND
DISTRIBUTION
0670.4
X6832
85 86
87 30
K6301w
FUEL PUMP RELAY
4 8 6 X6301
2X6301
6 14
5 X1001616X10016
M2
FUEL PUMP
F135AF1815A
P90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3FUSE DETAILS
0670.3
4 X6500
X13032
GROUND
DISTRIBUTION
0670.4
1X6500
X6433
2.5 GN
.5 GN
.5 GN1 RT/WS
.5 RT/WSX20
.5 BR/GN
X20
13
.5 GN/VI2.5 GN/VI 1210.20-00
B6247
CHARCOAL FILTER
SHUT–OFF VALVE 2 X6247
1X6247
2X6031
65
.5 GN/BL
.5 GN/BLFUSE DETAILS
0670.3

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2.5 GN
3 X61513 X61523 X6154
1T6151
CYL. 1 IGNITION
COILT6152
CYL. 2 IGNITION
COILT6154
CYL. 4 IGNITION
COILX6151
3 X6153
1T6153
CYL. 3 IGNITION
COIL
2X615321 X615221 X6154
1 GN 1 GN
2
W6165
SHIELD UP TO
10mm BEFORE
IGNITION COIL
CONNECTOR
49
X6456
GROUND
DISTRIBUTION
0670.4
5022
X6456
GROUND
DISTRIBUTION
0670.4
23
1 BR 1 BR1 GN
1 WS 1 RT 1 GESPARK PLUGS 1 GN
A6000
ENGINE CONTROL
MODULE (DME)1 BR 1 BR
1 BL
175X61506
2 X6150
2.5 GN
X6454
X6000
1.5
WS1 .5 RT 1.5 GE 1.5 BL
X6833
31 31 31 31






.5 GN
HEATED OXYGEN SENSOR, CRANKSHAFT SENSORS
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ENGINE CONTROL SYSTEM (DME M5.2, 4–CYLINDER M44)
X6000
A6000
ENGINE CONTROL
MODULE (DME)
X60007820
1210.20-00
30
46
19
21
X6203321
A6000
ENGINE CONTROL
MODULE (DME)
W6203
CRANKSHAFT
POSITION/RPM
SENSOR SHIELD
X620932
B6209
HALL EFFECT CAM-
SHAFT SENSOR
X62091
1210.20-00
B62001
OXYGEN SENSOR
(IN FRONT OF
CATALYTIC
CONVERTER)
X6200132
NS .5 GE
.35 RT/WS X62001
4 1
.5 BR .5 SW
31
.35 SW .35 GE
W6203
CRANKSHAFT
POSITION/RPM
SENSOR SHIELD
B6203
CRANKSHAFT
POSITION/RPM
SENSOR
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4 .35 GE
X609127
X609128
.35 GE
.35 SW
W6203
CRANKSHAFT
POSITION/RPM
SENSOR SHIELD X6091
125
31
155V (15)
B62002
OXYGEN SENSOR
(BEHIND
CATALYTIC
CONVERTER)
31X8008
X6200223
1
31
X620021 41210.20-00
.5 GN
77
15
.5 SW.5 GE
.75 SW.5 BR
+( '
31
.35 GE .35 SW