climate control BMW M3 1999 E36 Electrical Troubleshooting Manual







INSTRUMENT CLUSTER
SIGNAL–OUTPUT SPEEDOMETER
.35 SW/WSR
A8
CRUISE CONTROL
MODULE
(TEMPOMAT)
X22
10
6211.0-04
TACHX15275
.35 SW/WS
X188
.5 SW/WS
X100543
A115
AUTOMATIC
CLIMATE CONTROL
MODULE
.35 SW/WSTACH
X1812610
X322
3
.5 SW/WS .5 SW/WSN9
RADIO
TACH
X107013
.35 SW/WSN4
ON–BOARD
COMPUTER
N10
MULTI–FUNCTION
CLOCK TACH
R
X1315913A96
CONVERTIBLE TOP
CONTROL MODULE
X1429 TACH
A64
WIPER/WASHER
MODULE (LOW II) 15
X2855
.35 SW/WS
X102661
.35 SW/WSA18
HIFI AMPLIFIER
CONVERTIBLE COUPE
A51
WIPER/WASHER
MODULE
.5 SW/WSTACH TACHWITH TOP HIFI
X102661A18
HIFI AMPLIFIER
TACH WITH TOP HIFI
10
CONVERTIBLE
.35 SW/WS
.5 SW/WS
.5 SW/WS

5X899
A32y
THERMOSTAT
LIGHT SWITCH DETAILS





.5 GR/RT
E29
FRONT CIGAR
LIGHTER LIGHTE82
TRANSMISSION
POSITION INDICA-
TOR LIGHT
.5 GR/RT
E28y
REAR ASHTRAY
LIGHTE25
FRONT ASHTRAY
LIGHT
3 X516
4 X516
1 21 X1193
1 X3861 X5321 X1213
2
X11932 X3862 X5322 X1213
5 X322
5
TURN/HAZARD
LIGHTS
6313.0
1 GR/RT
.5 GR/RT .5 GR/RT .5 GR/RT .5 GR/RT .35 GR/RT
S18
HAZARD SWITCH
1) OFF
2) ON
X10012
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4





GROUND
DISTRIBUTION
0670.4 .5 BL/GNX1019


6300.0-00
7 X1527A115
AUTOMATIC
CLIMATE CONTROL
MODULE
2 X16A2w
INSTRUMENT
CLUSTER
31
.5 GR/RT
.5 GR/RT
13X18126N9
RADIO
2 X521
4
X521
S6
ASC SWITCH.5 GR/RT
.5 GR/RT
5
X35
GROUND
DISTRIBUTION
0670.4
GROUND
DISTRIBUTION
0670.4
16 X1070
N4
ON–BOARD
COMPUTERN10
MULTI–FUNCTION
CLOCK
19X13
.5 GR/RT
6300.0-02 .35 GR/RT
.5 GR/RT
A35
ON–BOARD
DISPLAY
E96
GEAR SHIFT LE-
VER INDICATOR
1
X1439
2
X1439
GROUND
DISTRIBUTION
0670.4
.35 GR/RT
X173
4
3 X1155
.5 GR/RT
N5
ANALOG CLOCK








6412.20 PARK VENTILATION WITH IHKA E36
P90
FRONT POWER
DISTRIBUTION BOX
8 X586
X1001620
42
FUSE DETAILS
0670.3
2.5 RT/GN
X8171GROUND
DISTRIBUTION
0670.4
X10012
K4
BLOWER RELAY
X58
4
N2
FINAL STAGE UNIT
M30
BLOWER MOTOR
31
S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
67
V6
UNCOUPLING
DIODEX33
.35 GN
X1405
1
X14061
GROUND
DISTRIBUTION
0670.4
X173
X352
1 X816
51
2.5 GN/BR
2 2.5 GN/BR
2.5 GN
2.5 GN .5 GN/WS
X671
3X6712.5 BR/GE 2.5 GN/GE
A115
AUTOMATIC
CLIMATE CONTROL
MODULE 19 .35 BL/RT
20 .35 GN/BR8 .35 SW/WS/GE
X1257
12 11X35
.5 GN.5 SW/WS/GEX107114
N4
ON–BOARD
COMPUTER
3) VENTILATION
2 X6078
K450
PARK VENTILATION
RELAY
X607
2.5 GN.5 SW/WS/GE.35 GN2.5 RT/GN
POWER
DISTRIBUTION
0670.2
5
.35 GN
X203
85 86
6412.20-0087 302.5 RT/GN
X18165
.5 SW/WS/GE 6412.20-00
64
X10103
3 .5 BL/VI NOT USED
X209
F2030A

2
10
32
10
3
GROUND
DISTRIBUTION
0670.4
X10012
X152721 23GROUND
DISTRIBUTION
0670.430
8786
85

X292
7





2 X2928
6424.0 REAR WINDOW DEFOGGER/ANTENNA






E9
REAR DEFOGGER I P90
FRONT POWER
DISTRIBUTION BOX F6
30A

K13
REAR DEFOGGER
RELAY
86 30
87
2.5 SW
.5 BL/SW
(+)
N9
RADIOA18
HIFI AMPLIFIER
.5 WS .5 WS
.5 WS
2.5 SW
6 X1001712 X10015
46
X359 X13
1 X3791 X424
16 X181262X605
F235A

FUSE DETAILS
0670.3FUSE DETAILS
0670.3
85X830
A115
AUTOMATIC
CLIMATE CONTROL
MODULE
2.5 SW X1226.35 BR/GE
A32y
THERMOSTAT
.5 BR/WS
12 X15274 X899
WITH HR WITH IHKA

X292





2 X2928
REAR WINDOW DEFOGGER/ANTENNA





P90
FRONT POWER
DISTRIBUTION BOX F6
30A

K13
REAR DEFOGGER
RELAY
86
8530
87
2.5 SW
.5 BL/SW
6 X1001712 X10015
46
9 X13
F235A

FUSE DETAILS
0670.3FUSE DETAILS
0670.3
2.5 SW
X1226
2.5 SW 2.5 SW
X379N8
ANTENNA
AMPLIFIER AM/FM 1X4241
A18
HIFI AMPLIFIER
2 X605N9
RADIO
16 X18126
.5 WS .5 WS
.5 WS
X830
X11205
X11208
E100y
HARD TOP
CONNECTOR 2
2
2
2.5 SW 7
X35
A115
AUTOMATIC
CLIMATE CONTROL
MODULE
.35 BR/GE
A32y
THERMOSTAT
.5 BR/WS
12 X15274 X899
WITH HR WITH IHKA
6424.0-02
CONVERTIBLE

 


6450.7-00
6450.7-01S36
TEMPERATURE
SWITCH M30
BLOWER MOTOR 6450.7-006450.7-00
5
A2w
INSTRUMENT
CLUSTER 6450.7-0210
2221 23A115
AUTOMATIC
CLIMATE CONTROL
MODULE
3
B11
LH HEAT EX-
CHANGER
TEMPERATURE
SENSORA6000
ENGINE CONTROL
MODULE (DME) 4
1
2
B12
RH HEAT EX-
CHANGER
TEMPERATURE
SENSORB13
OUTSIDE
TEMPERATURE
SENSOR
B14
EVAPORATOR
TEMPERATURE
SENSOR 6450.7-02
6450.7-04 6450.7-02 X1527
F2030A
K13
REAR DEFOGGER
RELAY
6424.0
16M36
FRESH AIR FLAP
MOTOR
F315AF235A
181111 Y4
WATER VALVE
ASSEMBLY
B9
INTERMEDIATE
PRESSURE
SWITCH F16
5AF4130A
6450.7-05
K19
COMPRESSOR
CONTROL RELAY
Y2
AIR CONDITIONING
COMPRESSOR 6450.7-04
6450.7-04
B8y
PRESSURE
SWITCH
K22
HIGH SPEED
RELAY
1715A
X1527
P90
FRONT POWER
DISTRIBUTION BOX
6
N2
FINAL STAGE UNIT 6450.7-00
149241225
20 86450.7-00K4
BLOWER RELAY
A6000
ENGINE CONTROL
MODULE (DME) 6450.7-05
P90
FRONT POWER
DISTRIBUTION BOX
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
M9
AUXILIARY FAN
MOTOR
K21
NORMAL SPEED
RELAY
S36y
DOUBLE
TEMPERATURE
SWITCHB9
INTERMEDIATE
PRESSURE
SWITCH F16
5AF4840A
6450.7-06
B8y
PRESSURE
SWITCHK22
HIGH SPEED
RELAY 6450.7-06
A6000
ENGINE
CONTROL
MODULE (DME) 6450.7-06
P97
AUXILIARY FUSE
BOX
M9
AUXILIARY FAN
MOTOR
K21
NORMAL SPEED
RELAY
F165AF397.5AP90
FRONT POWER
DISTRIBUTION BOX
6450.7-04
A6000
ENGINE CONTROL
MODULE (DME) 6450.7-06
713
NOT USED
19LIGHT SWITCH
DETAILS
6300.0 58g
START
1240.030h
B9508
PRESSURE
SWITCH6450.7-05 6450.7-05
6450.7-05
6450.7-05AUXILIARY FAN –
4–CYLINDER ENGINE
3 2 1
6450.7-03 6450.7-03 6450.7-03 6450.7-03
M35
DEFROSTER FLAP
MOTORM44
REGULATION FLAP
MOTORM46
REAR
RECIRCULATION
FLAP MOTORX1527
M40
RECIRCULATION
FLAP MOTORB9508
PRESSURE
SWITCH6450.7-06 6450.7-066450.7-06 P90
FRONT POWER
DISTRIBUTION BOX
S2
IGNITION SWITCH
15
AUXILIARY FAN –
6–CYLINDER ENGINE
PARK VENTILATION
WITH IHKA E36
6412.20
26
X1527
TXD
6450.7 INTEGRATED CLIMATE REGULATION (IHKA E36)


POWER, AIR FLOW CONTROL








INTEGRATED CLIMATE REGULATION (IHKA E36)
P90
FRONT POWER
DISTRIBUTION BOX
2.5 GN
7 X33
2.5 GN
X203
8S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
86
85
8730 6 X58
POWER
DISTRIBUTION
0670.2
K4
BLOWER RELAY
4X582 .35 GN
2.5 GN/BR
A115
AUTOMATIC
CLIMATE CONTROL
MODULE
GROUND
DISTRIBUTION
0670.49
.35 SW/GN
30h
X276
START
1240.0 .5 SW/GN
5
.35 SW/GN
24 .5 GN/GE1
F315A
X10018
2
25 .5 RT/GE
FUSE DETAILS
0670.3
15
X2091
X3522.5 GN/BR
F2030A
X10016
20
FUSE DETAILS
0670.3
F235A
X10017
6
FUSE DETAILS
0670.3
X35
1 GN/BL
32 4 1 X663
M36
FRESH AIR FLAP
MOTOR
17 16 15 14
.35 WS .35 BL .35 GR .35 GE
X10054
X1527
2 X671
X6713
19.35 BL/RT41
2.5 BR/GE
X8171
1 X816
5
2.5 GN/GE
M30
BLOWER MOTORN2
FINAL STAGE UNIT
21
.5 BR23
.5 BR
GROUND
DISTRIBUTION
0670.4
X10012
2
10
3
31 31 31 31
X173
2.5 BR
X1527








INTEGRATED CLIMATE REGULATION (IHKA E36)
A115
AUTOMATIC
CLIMATE CONTROL
MODULE 1 X85
Y4
WATER VALVE
ASSEMBLY
1) LEFT VALVE
2) RIGHT VALVE
X853
.5 GE/BR
3
.5 GE/BR
X100182
FUSE DETAILS
0670.3
13
P90
FRONT POWER
DISTRIBUTION BOX
2
.5 GE/VI
X10054
7
.5 GE/VI
18
1
4 X35
.5 GE
12 720
X152726
7X100542
.35 WS/VI 12
.35 SW/WS/GE
.35 BR/GE
5
.5 GR/RT
LIGHT SWITCH
DETAILS
6300.0
REAR WINDOW DE-
FOGGER/ANTENNA
6424.0
.5 BL/SW
.5 GR/RT
F315A
2
3131
8
11
PARK VENTILATION
WITH IHKA E36
6412.20DATA LINK
0670.5
.5 SW/WS/GE .5 GN .35 WS/VI
X35
TXD .35 GN/BR


TEMPERATURE CONTROL
INTEGRATED CLIMATE REGULATION (IHKA E36)






A115
AUTOMATIC
CLIMATE CONTROL
MODULE
X774X7721
X772
2
B11
LH HEAT EX-
CHANGER
TEMPERATURE
SENSOR
5V (15)5V (15)5V (15)5V (15)
3412
X7711
X771
2B14
EVAPORATOR
TEMPERATURE
SENSOR
B13
OUTSIDE
TEMPERATURE
SENSOR
X7731
X773
2B12
RH HEAT EX-
CHANGER
TEMPERATURE
SENSOR
X18161
22X774
.35 GE/RT .35 GE/BL .5 BL .35 GRX1527
.35 BR/OR
.35 BR/OR.35 BR/OR .35 BR/OR .35 BR/OR
X15276
X10054
11A115
AUTOMATIC
CLIMATE CONTROL
MODULE TD
X1047
.35 SW
.35 SW
.5 SW X1527


ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20
A6000
ENGINE CONTROL
MODULE (DME) X6000
80 .5 SW.5 SWX20
20
X8015
5
3 .35 SW/WS
.35 SW/WS
X188
INSTRUMENT
CLUSTER
6211.0
.5 SW/WS
2 X17
TACH
2
31A2w
INSTRUMENT CLUSTER
2) VEHICLE SPEED
OUTPUTTD
1
2
36 318i
ENGINE CONTROL
SYSTEM MS41.1
(6–CYLINDER M52)
1210.17


AIR DELIVERY







INTEGRATED CLIMATE REGULATION (IHKA E36)
A115
AUTOMATIC
CLIMATE CONTROL
MODULE
.35 RT .35 BR .35 GE
M35
DEFROSTER FLAP
MOTORM44
REGULATION FLAP
MOTORM46
REAR
RECIRCULATION
FLAP MOTORM40
RECIRCULATION
FLAP MOTOR 3 2 1MI–Bus
SH–
SH–FT