relay BMW Z3M COUPE 2001 E36 Electrical Troubleshooting Manual















6424.0 REAR WINDOW DEFOGGER
.5 GR/RT
23
X8981
X898
S76
REAR WINDOW DE-
FOGGER SWITCH
1) OFF
2) ON
F235A
X10017
6
FUSE DETAILS
0670.3LIGHT SWITCH
DETAILS
6300.0
GROUND
DISTRIBUTION
0670.4
X18170
1 2
4
P90
FRONT POWER
DISTRIBUTION BOXF620A
X10015
12
FUSE DETAILS
0670.3
X6324
86X63
K9
UNLOADER RELAY,
TERMINAL 1586
8530
87
.5 BR/WS 2.5 SW
X3801
E99
HARD TOP
CONNECTOR 1
1
2.5 SW
GROUND
DISTRIBUTION
0670.4
X13006
1 X12661 X1265
2 X130171
E9
REAR DEFOGGER I
2.5 SW 2.5 SW
X379
1 X11209
2.5 SW
GROUND
DISTRIBUTION
0670.4
X13006
1 X379E9
REAR DEFOGGER I
1 X380
ROADSTER COUPE
2.5 SW



\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




COMPRESSOR CONTROLS
INTEGRATED HEATING– AND CLIMATE CONTROL











15

F165A
30
87
P90
FRONT POWER
DISTRIBUTION BOX F39
7.5A
18 X10018
FUSE DETAILS
0670.3
.75 SW
2
1
21
.5 SW/BL
5 X51
Y2
AIR CONDITIONING
COMPRESSOR
1) NORMAL
TEMPERATURE
2) HIGH
TEMPERATUREK19
COMPRESSOR
CONTROL RELAY
A6000
ENGINE CONTROL
MODULE (DME) FUSE DETAILS
0670.3
6
4 X51
12 X10016
X10241
X600042986
85
Z3 VERSIONS

INTEGRATED HEATING– AND CLIMATE CONTROL

AUXILIARY FAN












.5 SW/GN
X19022
1 B9
INTERMEDIATE
PRESSURE
SWITCH
1) ABOVE 18 BAR
PRESSURE
2) 15 BAR
PRESSURE
30
30K22
HIGH SPEED
RELAYK21
NORMAL SPEED
RELAY
X872 .5 SW/GR
2.5 SW/BL
X190222 4
1
S36
TEMPERATURE
SWITCH
1) OPEN
2) ABOVE 99
DEGREES C
3) ABOVE 91
DEGREES C
4) OPEN M9
AUXILIARY FAN
MOTOR
8X5366 X524
X127286
87a 858786
85
X127
3
X165
X1001612
42X528
X1001820
FUSE DETAILS
0670.3
2.5 GN/RT
X10027
GROUND
DISTRIBUTION
0670.4
X53
.5 SW/GR
7 X271
A2w
INSTRUMENT
CLUSTER
.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
S221
EVAPORATOR
CONTROLLER
.5 VI
.5 SW/GE1
4 X10054
X183505GROUND
DISTRIBUTION
0670.4
B9508
PRESSURE
SWITCH
87
.5 SW/GR4 BL
4
X1022
.5 SW/GR25
X165
GROUND
DISTRIBUTION
0670.4
P90
FRONT POWER
DISTRIBUTION BOX
X1001612
FUSE DETAILS
0670.3
X166
15
X873
F165A
34
12F40
30AF165A
.5 SW/GR
6450.6-03
.5 SW/GR
5
6450.6-03
12
34
2 1
FUSE DETAILS
0670.3
Z3 VERSIONS

X166
M30
BLOWER
MOTOR1.5 GE


POWER, AIR FLOW CONTROL










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
GROUND
DISTRIBUTION
0670.4 GROUND
DISTRIBUTION
0670.4R11
BLOWER
RESISTORS
1) OPENS IF
RESISTORS
OVERHEAT


S75
BLOWER SWITCH
0) OFF
1) SLOW
2) MEDIUM
3) FAST
4) MAXIMUM
POWER DISTRIBUTION
0670.2
X1435
1.5 GE
6450.6-05 X68309
2.5 GN/BR
6450.6-05(PARTIAL)
1.5 GE
2.5 GN/BR
X1280
2 8 X50
6
X504
K33a
AIR CONDITIONING
RELAY, MOTRONIC30 86
87 85
GROUND
DISTRIBUTION
0670.4
6 X271
5
A2w
INSTRUMENT
CLUSTER
.5 SW/VIX10054
2 X35
X353
X189
6450.6-05
X9633
1.5 GE 2.5 GN/BR .5 SW/VI1.5 SW/VI(PARTIAL)
1 SW/VI
1
2
10
3
210
3 4
M VERSIONS
X9633



COMPRESSOR CONTROL AND WATER SUPPLY
INTEGRATED HEATING– AND CLIMATE CONTROL












F165A
30
87
F397.5A
18 X10018
FUSE DETAILS
0670.3
.75 SW
2
1
2
.5 SW/BL
5 X51
Y2
AIR CONDITIONING
COMPRESSOR
1) NORMAL
TEMPERATURE
2) HIGH
TEMPERATUREK19
COMPRESSOR
CONTROL RELAY FUSE DETAILS
0670.3
6
4 X51
12 X10016
X10241
86
85
15

29 X60004
A6000
ENGINE CONTROL
MODULE (DME)
1
P90
FRONT POWER
DISTRIBUTION BOX

M VERSIONS
.5 GN/BR
1 X11287
X112874
A605
FUSE HOLDER
2 X5115
X5115.5 BL1
0
1
X85
GROUND DISTRIBUTION
0670.4
X100542
8 X1602
Y4z
WATER VALVE
2.5 BL
F9532AS531
TEMPERATURE
WHEEL SWITCH
0) NORMAL
TEMPERATURE
1) MAXIMUM
TEMPERATURE .5 BL
X9633
6450.6-06
2
1 X85
30
87
F5430A
8 X19017
54 X1602
K104
AIR CONDITIONING
RELAY/AUXILIARY
WATER PUMP FUSE DETAILS
0670.3
686
85
87a
.75 BL
X122
GROUND
DISTRIBUTION
0670.4
M37a
AUXILIARY WATER
PUMP
1
X166
2 X122
.75 GN/WS
GROUND
DISTRIBUTION
0670.4