2001 BMW Z3M COUPE heating





Pin Assignments (M Versions)




E = Input, A = Output, M = GroundPin ConnectionDescription/Function Signal Type
9
Not used
10EA_TABGASTemperature signalExhaust temperature sensor
11AA_PEKPActivate relayElectrical fuel pump relay, timed
12AS_EBOXSignal E-box fanE-box fan
13MT_LHV2Oxygen sensor heating groundOxygen sensor 2 (in front of
catalytic converter)
14EA_LSV1Sensor signalOxygen sensor 1 (in front of
catalytic converter)
15EA_LSV2Sensor signalOxygen sensor 2 (in front of
catalytic converter)
16EA_LSH1Sensor signalOxygen sensor 1 (behind catalytic
converter)
17Not used
18EA_LSH2Sensor signalOxygen sensor 2 (behind catalytic
converter)
19MT_LHH2Oxygen sensor heating groundOxygen sensor 2 (behind catalytic
converter)
20ES_KUPPLUClutch pedal depressedClutch switch
21Not used
22Not used
23AS_HRActivate relayEngine control module relay
24Not used
X60003
Pin Type Signal Description/Function Connection
1
EA_HFMSignal air mass meterHot film air mass meter
2EP_NWGA1Signal camshaft positionCamshaft position sensor 2 (outlet)
3Not used
4ATNWE_F1Activate valveVariable camshaft control valve
(inlet) – advance
5EP_NWGE1Signal camshaft positionCamshaft position sensor 1 (inlet)
6EP_NWGA1Signal camshaft positionCamshaft position sensor 2 (outlet)

X90632
X9063144X18303
.5 SW/VI


FUSE DETAILS
0670.3
P90
FRONT POWER
DISTRIBUTION BOX
X16
23
X1001714











INDICATORS
INSTRUMENT CLUSTER
A2w
INSTRUMENT
CLUSTER
X423
1
F275A
2 1
B18
BRAKE FLUID
LEVEL SWITCH
1) LOW LEVEL
2) NORMAL LEVEL X111
1 .5 BR/VI
2 1
X9633
GROUND
DISTRIBUTION
0670.4
18
BRAKE
FLUID
X90631X1112S31
PARK BRAKE
SWITCH
1) BRAKE SET
2) BRAKE NOT
SET
17 X16
16 X1170
A52
SLIP CONTROL
MODULE
(ABS/ASC)
19 X1746
A65
DYNAMIC STABIL-
ITY CONTROL UNIT
(DSC)
X2717.5 SW/GE
B9508
PRESSURE
SWITCH
X127
4
S220
AIR CONDITIONING/
RECIRCULATING
SWITCH ASSEMBLY
X18349
2
.5 SW/GR 1 SW/VI
X1022
.5 GR/SW/GE
6
X100545
X189
.5 SW/GR 1 SW/VI
INTEGRATED
HEATING– AND
CLIMATE CONTROL
6450.6Z3 VERSIONS
M VERSIONS.5 VI/GR
.35 GR/SW/GE
21 X17
WITH DSC WITH ASC
Z3 VERSIONS
LATE PRODUCTION
6X17
CHARGING
SYSTEM
1230.0
.5 BL


PARK
FLUID
X1628X1123
DYNAMIC STABILITY
CONTROL (DSC III)
3452.1
DYNAMIC STABILITY CONTROL
(DSC MK 60)
3452.2
.35 BR/VI
.5 BR/VI
.5 BL/BR/GE
.5 BL/BR/GE
WITH DSC
WITH DSC



\b




P90
FRONT POWER
DISTRIBUTION BOX
K19
COMPRESSOR
CONTROL RELAY
6450.6-02
F397.5A
F165A
Y2
AIR CONDITIONING
COMPRESSOR
6450.6-02
A6000
ENGINE CONTROL
MODULE (DME)
6450.6-02
K4
BLOWER RELAY
6450.6-00
F20
30A
S220
AIR CONDITIONING/
RECIRCULATING
SWITCH ASSEMBLY
41
R11
BLOWER
RESISTORS
6450.6-00
S75
BLOWER SWITCH
6450.6-00
M30
BLOWER MOTOR
6450.6-00
3258
3
A2w
INSTRUMENT
CLUSTER
6450.6-01B14
EVAPORATOR
TEMPERATURE
SENSOR
6450.6-01
6
X18349
7 X18349
M111
FRESH AIR
RECIRCULATION
MOTOR
6450.6-01
S531
TEMPERATURE
WHEEL SWITCH
6450.6-01
A605
FUSE HOLDER
F953
2A
6450.6-02 6450.6-00
6450.6-01
6
Y4z
WATER VALVE
6450.6-01
P90
FRONT POWER
DISTRIBUTION BOX
K22
HIGH SPEED
RELAY
B9
INTERMEDIATE
PRESSURE
SWITCH S36
TEMPERATURE
SWITCHM9
AUXILIARY FAN
MOTORK21
NORMAL SPEED
RELAY
6450.6-03 6450.6-03
6450.6-03 6450.6-03
6450.6-03
6450.6-03
B8y
PRESSURE
SWITCH
A2w
INSTRUMENT
CLUSTER
6450.6-03
B9508
PRESSURE
SWITCH
F165AF4030A
S221
EVAPORATOR
CONTROLLER
5 X18350
F2410A
AUXILIARY FAN
2 X18350
Z3 VERSIONS
6450.6 INTEGRATED HEATING– AND CLIMATE CONTROL








M VERSIONS
P97
AUXILIARY FUSE
BOX
K21
NORMAL SPEED
RELAY
S36
TEMPERATURE
SWITCHK22
HIGH SPEED
RELAY
6450.6-07
6450.6-076450.6-07
F165AF4840A
A6000
ENGINE
CONTROL
MODULE (DME) 6450.6-07
P90
FRONT POWER
DISTRIBUTION
BOXP90
FRONT POWER
DISTRIBUTION BOX F16
5A
M9
AUXILIARY FAN
MOTOR 6450.6-07
P90
FRONT POWER
DISTRIBUTION BOX
K19
COMPRESSOR
CONTROL RELAY 6450.6-06
F397.5AF165A
Y2
AIR CONDITIONING
COMPRESSOR 6450.6-06
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-06
K4
BLOWER RELAY 6450.6-04 F20
30A
S220
AIR CONDITIONING/
RECIRCULATING
SWITCH ASSEMBLY
43
R11
BLOWER
RESISTORS 6450.6-04
S75
BLOWER
SWITCH 6450.6-04
M30
BLOWER MOTOR 6450.6-04
1258
S221
EVAPORATOR
CONTROLLER
3
A2w
INSTRUMENT
CLUSTER 6450.6-04
B14
EVAPORATOR
TEMPERATURE
SENSOR 6450.6-05
26
X18349
X18350
7 X18349
M111
FRESH AIR
RECIRCULATION
MOTOR 6450.6-05
S531
TEMPERATURE
WHEEL SWITCH 6450.6-06
A605
FUSE HOLDER
F953
2A
S2
IGNITION SWITCH 6450.6-046450.6-06 6450.6-04
6450.6-06
K33a
AIR CONDITIONING
RELAY, MOTRONIC 6450.6-04
6
Y4z
WATER VALVE 6450.6-05
B9
INTERMEDIATE
PRESSURE
SWITCHB8y
PRESSURE
SWITCH
5 X18350
B9508
PRESSURE
SWITCH 6450.6-07 6450.6-07
NOT USED6450.6-07
6450.6-07
AUXILIARY FAN
K104
AIR CONDITIONING
RELAY/AUXILIARY
WATER PUMP 6450.6-06
F5430AP90
FRONT POWER
DISTRIBUTION
BOX
M37a
AUXILIARY WATER
PUMP 6450.6-06
A2w
INSTRUMENT
CLUSTER 6450.6-07
INTEGRATED HEATING– AND CLIMATE CONTROL






Pin Assignments (Z3 Versions)




E = Input, A = Output, M = GroundX18349
8 Pins, black
X183506 Pins, black
X18349
Pin Type Description/Function Connection
1
ETerminal 15Heating blower relay
2AA/C-ON-signalEvaporator controller
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
3EA/C-ON-signalAir conditioning/recirculated air operating
unit
4Not used
5AActivate A/C compressorPressure switch
6EEvaporator temperatureEvaporator temperature sensor






Pin Assignments (M Versions)




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
3EA/C-ON-signalAir conditioning/recirculating switch
assembly
4Not used
5AActivate A/C compressorPressure switch
6EEvaporator temperatureEvaporator temperature sensor



POWER, AIR FLOW CONTROL










INTEGRATED HEATING– AND CLIMATE CONTROL
X1001620
8P90
FRONT POWER
DISTRIBUTION BOX F20
30A
X1429
X582 4
3 2 1 7 X905
X1328716 X58
2 X13233
3 2 1 4 X904
X100547
4 X905
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
X1435
1.5 GE
6450.6-01 X683092.5 GN/BR
6450.6-01(PARTIAL)
X13004
1.5 GE 1.5 GE
210
3 4
X9633
X100178F24
10A
FUSE DETAILS
0670.3
Z3 VERSIONS













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
X13004
X7712
X183506
.75 SW/WS
147 X18349
X18349
1.5 GE.5 GN
.5 GN/BR
X151713 3285
3
2
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4
6
GROUND
DISTRIBUTION
0670.4
X15172
X13004
GROUND
DISTRIBUTION
0670.4 6450.6-00 X5115
1(PARTIAL)
1 SW/VIX1891 SW/VI
0101020201
X9633
X10054
A2w
INSTRUMENT
CLUSTER
5
X271
6
.5 VI/GR
Z3 VERSIONS