1998 BMW 318ti Electrical Troubleshooting Manual






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.5 BRX741
1E59
PASSENGER’S
SEATBACK HEATER
1
S13
PASSENGER’S
DOOR JAMB
SWITCH
X351
2.5 BR.5 BR
X13005
X7401E58
PASSENGER’S
SEAT HEATER
.5 BR
4 BR
 



GROUND X495
GROUND DISTRIBUTION
0670.4-07 S56
PASSENGER’S
SEAT, SEAT
CONTROL SWITCH
X6046
X2791
2.5 BR

GROUND DISTRIBUTION
GROUNDS X498, X861, AND X1165





!


1.5 BR
Y1
ABS HYDRAULIC
UNIT
X1176
20 X11393
9
X1165
K125
ABS PUMP MOTOR
RELAY, TIMED
X113948A202
ABS CONTROL
MODULE/HY-
DRAULIC UNIT24
 

2.5 BR
.5 BRS127y
PASSENGER’S
POWER WINDOW
SWITCH
X324
4
.5 BR X3164S126y
DRIVER’S POWER
WINDOW SWITCH
X498
B2
LEFT FRONT
SPEED SENSOR –
ABS
X114
3
.5 BR
B1
RIGHT FRONT
SPEED SENSOR –
ABS
X113
3
.5 BR
2.5 BR
2.5 BRWITH ABS
Y6133
AIR PUMP
X6133
1
X861
4 BR

GROUND DISTRIBUTION
GROUNDS X1166 AND X1441





!


.5 BRX74
6
X1441
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE 

1 BRA52
SLIP CONTROL
MODULE
(ABS/ASC)
X113
3
.5 BR 2
X1166
.5 BR41.75 BR19
X11395
.75 BR3
B1
RIGHT FRONT
SPEED SENSOR –
ABS
WITH ASC
X1170

X6492

GROUND DISTRIBUTION
GROUND X6454





!


X6454
A6000
ENGINE CONTROL
MODULE (DME)
55
W6165
SHIELD UP TO
10mm BEFORE
IGNITION COIL
CONNECTOR
346
.5 BR
B6209
HALL EFFECT CAM-
SHAFT SENSOR
X6209
3
B6217
HOT FILM AIR
MASS METER
X6217
1
X6463
2.5 BR 2.5 BR 2.5 BR 1.5 BR1.5 BR .5 BR .5 BR
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
X8500
28
X6002
4 BR
D100
DATA LINK
CONNECTOR1.5 BR
19
 

346
6 BR
X600028
1.5 BR 1 BR
X6462
X6460
W6203
CRANKSHAFT
POSITION/RPM
SENSOR SHIELD
W6203
CRANKSHAFT
POSITION/RPM
SENSOR SHIELD
3X6203
1.5 BR
K6326
UNLOADER RELAY,
TERMINAL 15
X6326
4
1.5 BR
K6304
SECONDARY AIR
PUMP RELAY
X6304
5
.35 BR

GROUND DISTRIBUTION
GROUND X6456





!

1 BRT6151
CYL. 1 IGNITION
COIL
X6900
X61512





T6153
CYL. 3 IGNITION
COIL
X6153
2
1 BR
T6152
CYL. 2 IGNITION
COIL
X6152
2
1 BR
T6154
CYL. 4 IGNITION
COIL
X6154
2
1 BR
1.5 BR
X61503
X6456
1.5 BR
 

3





A35y
BOARD
COMPUTER
(BC – LOW)
X658
GROUND DISTRIBUTION
GROUND X10010





!

.5 BR/OR
X1624
A64
WIPER/WASHER
MODULE (LOW II)
.5 BR/OR
. 75 BR/ORN17
CRASH CONTROL
MODULE
A8
CRUISE CONTROL
MODULE
(TEMPOMAT)
.35 BR/ORX770
2B21
ON–BOARD
COMPUTER
TEMPERATURE
SENSOR
X28515A2w
INSTRUMENT
CLUSTER
.35 BR/OR2
M25
CRUISE CONTROL
ACTUATOR
(TEMPOMAT)
X70
X10010
X102456
X10009
.5 BR/OR
1 BR/OR 21
.5 BR/OR.75 BR/
OR5A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
X10182.35 BR/
OR3A110
DIGITAL CLOCK
X10263
 

.35 BR/
OR1S32
CLUTCH
SWITCH
X121
WITHOUT EGS
.5 BR/
OR13.35 BR/
ORX22
2
WITH EGS
A835
TRANSMITTER
MODULE (EWS II)
.35 BR/ORD110
OBD II
CONNECTOR
X10260
.5 BR/OR
5 X19527

E28
FRONT CIGAR
LIGHTER

GROUND DISTRIBUTION
GROUND X10012





!

.35 BR
E29
FRONT CIGAR
LIGHTER LIGHT
2.5 BR
.35 BRX532
1
.5 BR2


S8503
PROGRAM SWITCH
X8503
X1014
1
X10064
4 BR2.5 BR
0670.4-16
 

S6
ASC SWITCH
X5214
A51
WIPER/WASHER
MODULE
X285
7
S5
WIPER/WASHER
SWITCH
X2951
.75 BR




GROUND DISTRIBUTION
GROUND X10012





!

X7712B14
EVAPORATOR
TEMPERATURE
SENSOR
2.5 BR.35 BR
X132741S530
IHKS CONTROL
SWITCH2
2
E103
CLIMATE CONTROL
SWITCH
ILLUMINATION
.5 BR .5 BR .5 BR
X818
.5 BR
M30
BLOWER MOTOR
X817
1
2.5 BR
X102344S531
TEMPERATURE
WHEEL SWITCH
.5 BR
X15222M111
FRESH AIR
RECIRCULATION
MOTOR
X1517
X11250
A107
INTEGRATED
HEATING– AND
CLIMATE CONTROL
MODULE 

X359
2.5 BR
0670.4-16
M30
BLOWER MOTOR
X13287
1
2.5 BR
X15181S218
REAR DEFOGGER
SWITCH
X15222E103
CLIMATE CONTROL
SWITCH
ILLUMINATION
X18782
.35 BR .35 BR
2.5 BR
WITH HEATING
CONTROL (HS)WITH INTEGRATED
HEATING– AND
CLIMATE CONTROL
(IHKS)
2.5 BR