1998 BMW Z3M ROADSTER heating



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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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P90
FRONT POWER
DISTRIBUTION BOX
K22
HIGH SPEED
RELAY
B9
INTERMEDIATE
PRESSURE
SWITCH
S36
TEMPERATURE
SWITCHM9
AUXILIARY FAN
MOTORK21
NORMAL SPEED
RELAY
6450.6-036450.6-03
6450.6-036450.6-03
6450.6-03 6450.6-03
B8y
PRESSURE
SWITCH
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-03
B9508
PRESSURE
SWITCH
F165AF4030A
S221
EVAPORATOR
CONTROLLER
AUXILIARY FAN – 6–CYLINDERAUXILIARY FAN – 4–CYLINDER
P97
AUXILIARY FUSE
BOX
K22
HIGH SPEED
RELAY
B9
INTERMEDIATE
PRESSURE
SWITCH
S36y
DOUBLE
TEMPERATURE
SWITCH K21
NORMAL SPEED
RELAY
6450.6-046450.6-04
6450.6-046450.6-04
B8y
PRESSURE
SWITCH
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-04
5B9508
PRESSURE
SWITCH
X18350
F165AF4840A
S221
EVAPORATOR
CONTROLLER
A6000
ENGINE
CONTROL
MODULE (DME) 6450.6-04
P90
FRONT POWER
DISTRIBUTION BOXP90
FRONT POWER
DISTRIBUTION BOX F16
5A
M9
AUXILIARY FAN
MOTOR 6450.6-04
P90
FRONT POWER
DISTRIBUTION BOX
K19
COMPRESSOR
CONTROL RELAY 6450.6-02
F397.5AF165A
Y2
AIR CONDITIONING
COMPRESSOR 6450.6-02
A6000
ENGINE CONTROL
MODULE
(DME) 6450.6-02
K4
BLOWER RELAY 6450.6-00
F2030A
S220
AIR CONDITION-
ING/RECIRCULAT-
ING SWITCH
ASSEMBLY
41
R11
BLOWER
RESISTORS 6450.6-00
S75
BLOWER SWITCH 6450.6-00
M30
BLOWER MOTOR 6450.6-00
35268
S221
EVAPORATOR
CONTROLLER3
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-02B14
EVAPORATOR
TEMPERATURE
SENSOR 6450.6-01
26
X18349
X18350
7 X18349
M111
FRESH AIR
RECIRCULATION
MOTOR 6450.6-01
S531
TEMPERATURE
WHEEL SWITCH 6450.6-01
A605
FUSE HOLDER
F953
2A
Y4z
WATER VALVE 6450.6-01
S2
IGNITION SWITCH 6450.6-006450.6-02 6450.6-00
X18350
5 X18350
6450.6-01
Z3 ROADSTER
6450.6 INTEGRATED HEATING– AND CLIMATE CONTROL

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M ROADSTER
P97
AUXILIARY FUSE
BOX
K21
NORMAL SPEED
RELAY
S36
TEMPERATURE
SWITCHK22
HIGH SPEED
RELAY 6450.6-08
6450.6-086450.6-08
F165AF4840A
A6000
ENGINE
CONTROL
MODULE (DME) 6450.6-08
P90
FRONT POWER
DISTRIBUTION BOXP90
FRONT POWER
DISTRIBUTION BOX F16
5A
M9
AUXILIARY FAN
MOTOR 6450.6-08
P90
FRONT POWER
DISTRIBUTION BOX
K19
COMPRESSOR
CONTROL RELAY 6450.6-07
F397.5AF165A
Y2
AIR CONDITIONING
COMPRESSOR 6450.6-07
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-07
K4
BLOWER RELAY 6450.6-05 F20
30A
S220
AIR CONDITION-
ING/RECIRCULAT-
ING SWITCH
ASSEMBLY
43
R11
BLOWER
RESISTORS 6450.6-05
S75
BLOWER SWITCH 6450.6-05
M30
BLOWER MOTOR 6450.6-05
1258
S221
EVAPORATOR
CONTROLLER
3
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-05
B14
EVAPORATOR
TEMPERATURE
SENSOR 6450.6-06
26
X18349
X18350
7 X18349
M111
FRESH AIR
RECIRCULATION
MOTOR 6450.6-06
S531
TEMPERATURE
WHEEL SWITCH 6450.6-06
A605
FUSE HOLDER
F953
2A
S2
IGNITION SWITCH 6450.6-056450.6-07 6450.6-05
6450.6-06
K33a
AIR CONDITIONING
RELAY, MOTRONIC 6450.6-05
6
Y4z
WATER VALVE 6450.6-06
B9
INTERMEDIATE
PRESSURE
SWITCHB8y
PRESSURE
SWITCH
5 X18350
B9508
PRESSURE
SWITCH 6450.6-08 6450.6-08
NOT USEDNOT USED 6450.6-08
6450.6-08
AUXILIARY FAN
INTEGRATED HEATING– AND CLIMATE CONTROL



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Pin Assignments (Z3 Roadster)
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E = Input, A = Output, M = GroundX18349
8 Pins, black
X183506 Pins, black
X18349
Pin Type Description/Function Connection
1
ETerminal 15Heating blower relay
2AActivate compressor clutchEngine control module (DME)
3ABlower level 1 (air conditioning)Blower resistor
4ETerminal 15Heating blower relay
5ABlower level 1 (air-recirculation)Blower resistor
6MGround for function lightsGround point
7ETerminal 15Heating blower relay
8AActivate fresh air-recirculationFresh air-recirculation motor
X18350
Pin Type Description/Function Connection
1
Not used
2MGroundGround point
3EClimate-ON-signalAir conditioning/recirculated air operating
unit
4Not used
5AActivate A/C compressorPressure switch
6EEvaporator temperatureEvaporator temperature sensor



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Pin Assignments (M Roadster)
 !""





E = Input, A = Output, M = GroundX18349
8 Pins, black
X183506 Pins, black
X18349
Pin Type Description/Function Connection
1
MGroundGround point
2AA/C-ON-signalEvaporator controller
3AA/C-ON-signalNormal speed relay
4ETerminal 15Heating blower relay
5ABlower level 1 (air-recirculation)Blower resistor
6MGround for function lightsGround point
7ETerminal 15Heating blower relay
8AActivate fresh air-recirculationFresh air-recirculation motor
X18350
Pin Type Description/Function Connection
1
Not used
2MGroundGround point
3EClimate-ON-signalAir conditioning/recirculated air operating
unit
4Not used
5AActivate A/C compressorPressure switch
6EEvaporator temperatureEvaporator temperature sensor






POWER, AIR FLOW CONTROL
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INTEGRATED HEATING– AND CLIMATE CONTROL
X1001620
8 2.5 GNP90
FRONT POWER
DISTRIBUTION BOX F20
30A
X1429
X582 4
3 2 1 7 X905
X1328716 X58
2 X13233
3 2 1 4 X904
X100547 7 X33
4 X905
S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
1 X209
86
8530
87FUSE DETAILS
0670.3
K4
BLOWER RELAY
2.5 GN/BR
2.5 GN/BR
2.5 BL
2.5 BL
2.5 BL 2.5 GN 1.5 SW1.5 GE
M30
BLOWER MOTOR
GROUND
DISTRIBUTION
0670.4 GROUND
DISTRIBUTION
0670.4R11
BLOWER
RESISTORS
1) OPENS IF
RESISTORS
OVERHEAT 1



S75
BLOWER SWITCH
0) OFF
1) SLOW
2) MEDIUM
3) FAST
4) MAXIMUM
POWER
DISTRIBUTION
0670.2
X1435
1.5 GE
6450.6-01 X683092.5 GN/BR
6450.6-01(PARTIAL)
X9633
1.5 GE 1.5 GE
210
3 4
2
10 3
Z3 ROADSTER






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INTEGRATED HEATING– AND CLIMATE CONTROL


X11287
X11287
F9532A
6450.6-00
X7711
GROUND
DISTRIBUTION
0670.4
6450.6-00
.5 GN/BR1.5 GN/BR1.5 GN/BR
1.5 GE1 SW/VI
X18350
X683091 GN/BR
S531
TEMPERATURE
WHEEL SWITCH
0) NORMAL
TEMPERATURE
1) MAXIMUM
TEMPERATURE
A605
FUSE HOLDER
Y4z
WATER VALVES221
EVAPORATOR
CONTROLLER
B14
EVAPORATOR
TEMPERATURE
SENSORM111
FRESH AIR
RECIRCULATION
MOTOR S220
AIR CONDITION-
ING/RECIRCULAT-
ING SWITCH
ASSEMBLY
0) OFF
1) AIR CONDI-
TIONING
2) AIR RECIRCU-
LATING
.5 BL4
X5115
2 1
X851
X853
.5 BL
X10054
2
.5 BL
X9633
X7712
X183506.75 SW/WS
147 X18349
X183491.5 GE.5 GN
.5 GN/BR
X151713 3285
3
2
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4
6
GROUND
DISTRIBUTION
0670.4
X15172
X9633
GROUND
DISTRIBUTION
0670.4 6450.6-00 X5115
1(PARTIAL)6450.6-02
1 SW/VIX189
1 SW/VI
0101020201
Z3 ROADSTER