1998 BMW 318ti Electrical Troubleshooting Manual

31




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F235A
6 58g
6 1 X85
1
X10234
X853
X35
3
2
4
X771
2
FUSE DETAILS
0670.3
.5 GE/BR
.5 GE/BR
A107
INTEGRATED
HEATING– AND
CLIMATE CONTROL
MODULE P90
FRONT POWER
DISTRIBUTION BOX
M111
FRESH AIR
RECIRCULATION
MOTORK13
REAR DEFOGGER
RELAY
S531
TEMPERATURE
WHEEL SWITCH
0) NORMAL
TEMPERATURE
1) MAXIMUM
TEMPERATURE
.5 GE
4 X35
LIGHT SWITCH
DETAILS
6300.0
GROUND
DISTRIBUTION
0670.4FUSE DETAILS
0670.3
S530
IHKS CONTROL
SWITCH
0) OFF
1) REAR DEFOGGER
2) A/C
3) RECIRCULATIONGROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4B14
EVAPORATOR
TEMPERATURE
SENSOR
GROUND DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4 A6000
ENGINE CONTROL
MODULE (DME)X11250
X11250
1 GN/GR .5 GN/RT .5 GN/RT .35 GR/RT .5 GN/RT
X10233
X13274
1
X771
Y4z
WATER VALVE
14 3X13279
X132749
1
.35 VI/GR
.35 VI/GR 8 7
10 4 .35 GR/GE8
2
X1517
X151731.5 BL/SW4 X292
X10234
X100176
.5 RT/GE
.35 VI/GR
.5 VI/GR6 X35
6X20
.5 VI/GR
69 X6000
X35
X292
85 86 FUSE DETAILS
0670.3
7
X10012
.35 GR
X10012
030301010202
01
.5 GN/BL


COMPRESSOR CONTROLS
INTEGRATED HEATING– AND CLIMATE CONTROL



!




15
31

F165A
30
87P90
FRONT POWER
DISTRIBUTION BOX F39
7.5A
18 X10018
FUSE DETAILS
0670.3
.75 SW/RT/GE
2
1
21
5 X51
4
.5 SW/BL
.5 SW/BL
X8056
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
X163
X20
X6000
86
85
.5 SW/BL15
AC
X8500
A8500
TRANSMISSION
CONTROL MODULE
(EGS).5 SW/BL
 

46
36

.35 SW/GR
X20
3
X208
X6000
X6000
X113793.35 SW/GN.5 RT/WS
57
.5 GR/VI68
GROUND
DISTRIBUTION
0670.4
AUXILIARY FAN




!


INTEGRATED HEATING– AND CLIMATE CONTROL
X18901 B9
INTERMEDIATE
PRESSURE
SWITCH
1) ABOVE 18 BAR
PRESSURE
2) 15 BAR
PRESSURE 12
86
30P97
AUXILIARY FUSE
BOX F16
5A
F4840A

34
2 1
K22
HIGH SPEED
RELAYK21
NORMAL SPEED
RELAY
X113792 .5 SW/GR
4 SW/BL
X1890
3
1
S36y
DOUBLE
TEMPERATURE
SWITCH
1) OPEN
2) ABOVE 88
DEGREES C
3) ABOVE 80
DEGREES C
4) OPEN M9
AUXILIARY FAN
MOTOR
8X5366 X524
X10261
386
87a 8585 30
87
X10261
2
X165
X1001612
455X522
X15882
FUSE DETAILS
0670.3
4 GN/RT
X10027


X532
.5 SW/GR
11 X6000
5 X20
A6000
ENGINE CONTROL
MODULE (DME)
.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
A107
INTEGRATED HEATING–
AND CLIMATE
CONTROL MODULE
.5 BL/SW
.35 BL/SW10 X35
X112505 .5 SW/BR15
B9508
PRESSURE
SWITCH
2 1
4 387
4
 

X1022
P90
FRONT POWER
DISTRIBUTION BOX
1
GROUND
DISTRIBUTION
0670.4
X165
GROUND DISTRIBUTION
0670.4
X165
F165A

X1001612
P90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3
.5 SW/GR2
A6000
ENGINE CONTROL
MODULE (DME) FUSE DETAILS
0670.3
.5 SW/BR4 BL

23




6510.0 RADIO/STEREO



!



N9
RADIO
H59
LEFT FRONT HIGH
RANGE SPEAKER
1
16
H58
LEFT FRONT LOW
RANGE SPEAKER
8
15 FUSE DETAILS
0670.3
11 F33
10A
X876
X753
X826
X1381
P90
FRONT POWER
DISTRIBUTION BOX F44
15A

H45
RIGHT REAR
SPEAKER 21
2
16
H50
RIGHT FRONT
HIGH RANGE
SPEAKER
H51
RIGHT FRONT LOW
RANGE SPEAKER 11
23
11 X827
X746
X877
X700
H46
LEFT REAR
SPEAKER 21
A2w
INSTRUMENT
CLUSTER
2) VEHICLE
SPEED
OUTPUT 2 X17
X188
3
10 X181263
12135
LIGHT SWITCH
DETAILS
6300.0
INSTRUMENT
CLUSTER
6211.0
614
6 X1001828 X10018
1 GR/RT
2.5 GR/RT58g
.75 GE/BR.75 GE/RT
.75 GE/RT
.5 GE/RT .75 GE/RT
X701
.75 GE/BR
.75 GE/BR
.5 GE/BRX18196
X10248
.75 GE/VI .75 GE/GR
.75 BL/SW
.75 BL/SW
.5 BL/SW.75 BL/BR
.75 BL/BR
.5 BL/BRX18198.75 BL/SW .75 BL/BR
X1380
.75 BL/VI .75 BL/GR
X10246.5 SW/WS
X322
.5 SW/WS
.5 SW/WS
GROUND
DISTRIBUTION
0670.4
312
1 X424
.5 WS
16
4 1CELLULAR
TELEPHONE
(PROVISIONS)
6561.0
X18126
X322
.35 WS/BR
.5 WS/BR
X18723
N8
ANTENNA
AMPLIFIER AM/FM
5
FUSE DETAILS
0670.3
R 58g MUTE
LF+ LF–LR+ LR–31 RF+ RF–RR+ RR–GAL ANT
 

FUSE DETAILS
0670.3 F9
20A
18 X10015
93X1892
1
GROUND
DISTRIBUTION
0670.4
X13006
X1892
N22
CD CHANGER
7.35 GE
3 X1646
.5 WS 24
X146X322.35 GE.35 GE

INSTRUMENT
CLUSTER
6211.0
N9
RADIO




6510.1 RADIO/HIFI


!



F3310A
P90
FRONT POWER
DISTRIBUTION BOX F44
15A
5LIGHT SWITCH
DETAILS
6300.0
2
6 X1001828 X10018
X17
.5 GR/RT58g
9131 GR/RT
10
X188
15
X13016
GROUND
DISTRIBUTION
0670.4
2 X1892
1
161
.75 GE/RT1523 32
6
3FUSE DETAILS
0670.3
N9
RADIOA18
HIFI AMPLIFIER
.75 BL/RT .75 GE/SW .75 BL/SW N22
CD CHANGER
LF+ RF+ LR+ RR+
.5 SW/WSGAL
F920A
18 X10015
1 X605
8 17
.75 BR/OR
LF–124
.75 BR/OR
LR–11 14
.75 BR/OR
RF–141
.75 BR/OR
RR–
X606
X18126
FUSE DETAILS
0670.3FUSE DETAILS
0670.3
1CELLULAR
TELEPHONE
(PROVISIONS)
6561.0
.5 WS/BR
4 .35 WS/BR
5
3130 R 58g MUTE
LF+ RF+ LR+ RR+
LF–RF– LR–RR– 30
31
F920A
18 X10015
FUSE DETAILS
0670.3
X13006
GROUND
DISTRIBUTION
0670.4
 

1X322
.5 WS .5 WS
X18126
3 X1646
6
.35 GE
7
.35 GE
X322
24X14
.35 GE
3
X1892I-BUS
X332
.5 SW/WS
.5 SW/WS
A2w
INSTRUMENT CLUSTER
2) VEHICLE SPEED
OUTPUT
2 16 X18126X17179
ANT
ANT
X830
X17279
2
2 X17159
.5 WS
.5 WS
.5 WS
.5 WSX605
WITH SUBWOOFER N8
ANTENNA
AMPLIFIER
AM/FM
H66
SUBWOOFER
34 X17159
X13016
GROUND
DISTRIBUTION
0670.4
3 X605
X13016
GROUND
DISTRIBUTION
0670.4
X424
.5 WS
X17179
X17179
ANT
X606
2




RADIO/HIFI


!



H58
LEFT FRONT LOW
RANGE SPEAKER
111 7 X6051
X701
.75 BL/WS
7
8A18
HIFI AMPLIFIER
.75 BL/BR
12
H57
LEFT REAR LOW
RANGE SPEAKER 11 11
H56
LEFT REAR HIGH
RANGE SPEAKER
X102492
1
H46
LEFT REAR
SPEAKER
X1381
X606
+– +
8–12
1–10
2+X17179
.75 GE/GR .75 BR.75 GE/SW .75 GE
X10248
 

.75 BL/WS .75 BL/BR .75 GE/GR .75 GE/SW
WITH SUBWOOFER
H66
SUBWOOFER
.75 GE/SW .75 GE/GR
10
11X17159
X16819
.75 GE/GR .75 GE/SW
X16809
– +




RADIO/HIFI


!



H51
RIGHT FRONT LOW
RANGE SPEAKER
15 9 X6051
X700
.75 BL/RT
9
10A18
HIFI AMPLIFIER
.75 BL/BR
6
H52
RIGHT REAR LOW
RANGE SPEAKER 513
H53
RIGHT REAR HIGH
RANGE SPEAKER
X102472
1
H45
RIGHT REAR
SPEAKER
X1380
X606
+– +
10–6
1–12
2+X17179
.75 BL/VI .75 BR.75 BL/GR .75 BL
X10246
 

WITH SUBWOOFER
.75 BL/BR .75 BL/RT
8
9X17159
X17309
X17299
.75 BL/RT .75 BL/BR .75 BL/VI .75 BL/GR.75 BL/RT .75 BL/BR
H66
SUBWOOFER – +




RADIO/HIFI


!



H55
LEFT FRONT MID-
RANGE SPEAKERH59
LEFT FRONT HIGH
RANGE SPEAKER .75 GE/SW
25
1 .75 GE/RT
10 .75 GE/BR
21
X18196
22
5
A18
HIFI AMPLIFIER
.75 GE/BR
6
2 X5371
X75323
H42
LEFT MID–HIGH
RANGE SPEAKER
H54
RIGHT FRONT MID-
RANGE SPEAKER 624
.75 BL/RT
H50
RIGHT FRONT
HIGH RANGE
SPEAKER.75 BL/BR
X74623
H43
RIGHT MID–HIGH
RANGE SPEAKER
X606
+– – + +
9
.75 BL/BR
1–23
.5 BL/SW
2+26X606
–
X538
 

.75 GE/RT .75 GE/BR .75 GE/BR .75 GE/SW1 10
X1819856
.5 BL/RT .5 BL/BR .5 BL/BR.75 BL/SW