air conditioning BMW Z3M COUPE 2001 E36 Electrical Troubleshooting Manual



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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




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

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

X166












INTEGRATED HEATING– AND CLIMATE CONTROL


01
6450.6-04
X7711
1 GN/BR
1 SW/VI
X18350
1.5 GN/BR
S221
EVAPORATOR
CONTROLLER
B14
EVAPORATOR
TEMPERATURE
SENSORM111
FRESH AIR
RECIRCULATION
MOTOR S220
AIR CONDITIONING/
RECIRCULATING
SWITCH ASSEMBLY
0) OFF
1) AIR
CONDITIONING
2) AIR
RECIRCULATING
X7712
X1835061 SW/WS
47 X18349
X18349
1.5 GE.5 GN
.5 GN/BR
X151713 285
3
2
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4
6
GROUND
DISTRIBUTION
0670.4
X15172
GROUND
DISTRIBUTION
0670.4 6450.6-04 (PARTIAL)
6450.6-07
1 SW/VIX189
2
01
1.5 GE
3
1
GROUND
DISTRIBUTION
0670.4
6450.6-04
X68309(PARTIAL)
.5 GN/BR
0
20
M VERSIONS
6450.6-06



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



COMPONENT LOCATION CHART










COMP.8500.0 7100.0LOCATION DESCRIPTION
K22 . . . HIGH SPEED RELAY . . . . . . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . 09-3

K25 . . .
RIGHT PARK LIGHT/LICENSE PLATE
LIGHT RELAY . . . . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . .

01-3


K26 . . .
LEFT PARK LIGHT RELAY . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . .
01-3

K33a . .

AIR CONDITIONING RELAY, MOTRONIC .

rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . .

09-3


K46 . . . HIGH BEAM LIGHT RELAY . . . . . . . . . . . . . footwell, driver’s side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00-3
K47 . . . FRONT FOG LIGHT RELAY . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . 09-2
K48 . . . LOW BEAM LIGHT RELAY . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . 09-2



K70 . . .


CENTRAL LOCKING LUGGAGE
COMPARTMENT LID MOTOR RELAY
(ZV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . .



01-3




K104 . .

AIR CONDITIONING RELAY/AUXILIARY
WATER PUMP . . . . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . .


09-3



K910 . .

PASSENGER’S SEAT TILT ADJUST CUT–
OFF RELAY . . . . . . . . . . . . . . . . . . . . . . . . .
underside of RH front seat






K911 . . .

PASSENGER’S SEAT LENGTH ADJUST
CUT–OFF RELAY . . . . . . . . . . . . . . . . . . . .
underside of RH front seat






K920 . .

DRIVER’S SEAT TILT ADJUST CUT–OFF
RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
underside of LH front seat






K921 . .

DRIVER’S SEAT LENGTH ADJUST CUT–
OFF RELAY . . . . . . . . . . . . . . . . . . . . . . . . .
underside of LH front seat




K6300 . ENGINE CONTROL MODULE RELAY . . . . rear RH side of engine compartment in E–Box
K6301w FUEL PUMP RELAY . . . . . . . . . . . . . . . . . . . . below LH side of dash (Z3 VERSIONS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00-3

K6301z
ELECTRIC FUEL PUMP RELAY, TIMED . .
under rear storage compartment (M VERSIONS)



K6304 . SECONDARY AIR PUMP RELAY . . . . . . . . rear RH side of engine compartment in E–Box



COMPONENT LOCATION CHART










COMP.8500.0 7100.0LOCATION DESCRIPTION


S117 . . .

LUGGAGE COMPARTMENT LID LOCK-
ING SWITCH . . . . . . . . . . . . . . . . . . . . . . . .
in lift gate




S126y . DRIVER’S POWER WINDOW SWITCH . . . center console near gearshift lever

S127y .
PASSENGER’S POWER WINDOW
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . .
center console near gearshift lever





S143 . .
CONVERTIBLE TOP ACTUATING
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . .
center console





S164 . .
CONVERTIBLE TOP END–POSITION
MICRO SWITCH . . . . . . . . . . . . . . . . . . . . .
at convertible top linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17-3

S198 . . JET HEATER THERMOSWITCH . . . . . . . . . on front RH wheel well

S220 . .
AIR CONDITIONING/RECIRCULATING
SWITCH ASSEMBLY . . . . . . . . . . . . . . . . .
center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

00-1


S221 . .
EVAPORATOR CONTROLLER . . . . . . . . . .
RH side of LH footwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21-2

S224 . . GEAR STEP TRANSMISSION SWITCH . . center console
S232 . . COMPRESSOR MAIN SWITCH . . . . . . . . . . TIRE INFLATION SYSTEM
S235 . . STARTER IMMOBILIZATION SWITCH . . . . LH footwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
S408 . . INTERIOR LIGHT SWITCH . . . . . . . . . . . . . near interior rear view mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-2

S531 . .

TEMPERATURE WHEEL SWITCH . . . . . . .

center of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21-3




S555 . .

TYRE PRESSURE WARNING SYSTEM
(RDW) PUSHBUTTON . . . . . . . . . . . . . . .
LH side of dash




S825 . . FRONT LID MICRO SWITCH . . . . . . . . . . . . near LH headlight assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-1


S826 . .

LUGGAGE COMPARTMENT LIGHT
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . .
underside of luggage compartment lid




S910 . . DRIVER’S SEAT LIMIT SWITCH . . . . . . . . . in driver’s seatback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-3