1999 BMW 318ti Electrical Troubleshooting Manual

X78WITH EGS








6571.0 CRUISE CONTROL (TEMPOMAT)
FUSE DETAILS
0670.3 X10017
16
5 X511
P90
FRONT POWER
DISTRIBUTION BOX F28
5A
ELECTRONIC
TRANSMISSION
CONTROL
(EGS A4S 270R)
2460.2
.5 BR/SW
F4615A
X10018
32
.5 VI/GE X511
7
##
# #
 
 
 
 
 


 
5S3
AUTOMATIC
TRANSMISSION
RANGE SWITCH
0) OFF (LOW)
1) ON (HIGH)
3126
31
X191
.35 BR/SW1 X72
S28
CRUISE CONTROL
SWITCH
0) NORMAL
1) OFF
2) RESUME
3) DECELERATE/SET
4) ACCELERATE/SET
24
31
3
18
312
9
314 X72
20
X22
31
A8
CRUISE CONTROL
MODULE
(TEMPOMAT) .35 BL/WS .35 BL/GN .35 BL/GR.5 VI/GE
.35 BL/SW FUSE DETAILS
0670.3
468
5 EGS A4S 270R
 

1
1 2
2
15S29
BRAKE LIGHT SWITCH
1) NORMAL STATE
2) BRAKE PEDAL
DEPRESSED
BRAKE LIGHTS
6325.0
X116
X116
.35 BL/RT 1.5 BL/RT1.5 VI/GE
X181
L1L2L3L4
01010101
4 3
01 2
01 2
0
31
20
8X16
.35 SW.5 SW
X1047
31A2w
INSTRUMENT
CLUSTER
TD
ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20
X78
S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED
WITHOUT EGS







CRUISE CONTROL (TEMPOMAT)
10
2 X17
INSTRUMENT
CLUSTER
6211.0
.35 SW/WS
R
TACH315V (15)
2112
X22
X188
.5 SW/WS
31
2A2w
INSTRUMENT
CLUSTER
2) VEHICLE
SPEED
OUTPUT
X10010
.5 SW/BL
54 .5 GE/WS3 X70M25
CRUISE CONTROL
ACTUATOR
(TEMPOMAT)
1) FEEDBACK PO-
TENTIOMETER
2) CLUTCHA8
CRUISE CONTROL
MODULE
(TEMPOMAT)
.5 RT/BR
GROUND
DISTRIBUTION
0670.4
X10010
X121112 2 X121
S32
CLUTCH SWITCH
1) NORMAL STATE
2) CLUTCH PEDAL
DEPRESSED
GROUND
DISTRIBUTION
0670.4
 

31
13
2
716
11 3
.5 SW/BR .5 SW/GN
GROUND
DISTRIBUTION
0670.41
14 23
.5 BR/OR .5 BR/OR
.35 BL/BR
.5 GE/VI
X702

1
2 7
57 X8500A8500
TRANSMISSION
CONTROL MODULE
(EGS)
.35 GE/BR
14 X69
.35 GE/BR
17
.35 WS/VI
DATA LINK
0670.5
WITH EGS WITHOUT EGS TXD
.35 BR/OR




6575.2 ANTI–THEFT SYSTEM (ALPINE)
 







P90
FRONT POWER
DISTRIBUTION BOX
N12w
ANTI–THEFT
CONTROL MODULE
(ALPINE) FUSE DETAILS
0670.3
F435A
2 X13025
3 X1302511
S61y
LUGGAGE
COMPARTMENT
LIGHT SWITCH
1) TRUNK
CLOSED
2) TRUNK OPEN3 X711
LOW–NOISE MI-
CROPHONE
VI VI
SW SW
LED
X13009
GROUND
DISTRIBUTION
0670.4
ANTENNA
.5 BR/WS
8
2 X65
.5 BL/GN/GE
14X14
N17
CRASH CONTROL
MODULE .5 BL/GN/GE1 2
26 X10018
2X711
12
1 X13254
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV) .5 BR/RT/GE
.5 BR/RT/GE
X475
.5 BR/RT/GE
NOT USED
10
4 X13253
.5 BL/RT/GE
.5 BL/RT/GE
X450
15 X1805A837
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS III) .5 BL/RT/GE
19 X257
4X14
.5 BL/RT/GE
X13006
GROUND
DISTRIBUTION
0670.4

X13254
 










N12w
ANTI–THEFT
CONTROL MODULE
(ALPINE)
ANTI–THEFT SYSTEM (ALPINE)
1 21
2 X371
.5 VI/GN/GE
1 X371
1 24
S14
DRIVER’S DOOR
JAMB SWITCH
1) DOOR OPEN
2) DOOR CLOSED 2 X352
.5 BR/GR/GE
X13006X10012
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
.5 BR/GR/GE
GROUND
DISTRIBUTION
0670.4 GROUND
DISTRIBUTION
0670.4 1 X352
2 X13025
26 X10018
F435A
FUSE DETAILS
0670.3P90
FRONT POWER
DISTRIBUTION BOX
X10244
1
2 X10250
F4715A
FUSE DETAILS
0670.3P95
AUXILIARY FUSE
BOX
X13168
9
17 X13253
.5 WS/RT/GE.5 WS/RT/GE
2 .5 BR/GR/GE
A2w
INSTRUMENT
CLUSTER23 .5 BR/GR/GE
X17
3 .5 BR/BL/GE
X13254
1 2X445
5
S13
PASSENGER’S
DOOR JAMB
SWITCH
1) DOOR OPEN
2) DOOR CLOSED 2 X351
.5 BR/BL/GE
X495
.5 BR/BL/GE
GROUND
DISTRIBUTION
0670.4 1 X351
S21w
ENGINE HOOD
SWITCH
1) HOOD OPEN
2) HOOD CLOSED
7
2 X372
1 SW/BL
1 X372
GROUND
DISTRIBUTION
0670.4
X13025
X165
H1w
ANTI–THEFT HORN
(ALPINE)
8 X14
1 SW/BL X443
13 X14
.5 BR/GR/GE

6581.3 BOARD COMPUTER (BC – LOW)





B21
ON–BOARD
COMPUTER
TEMPERATURE
SENSOR
31 30
31 31 31
.35 BR/GR
P90
FRONT POWER
DISTRIBUTION BOX
232 X10018
FUSE DETAILS
0670.3
510
911
LIGHT SWITCH
DETAILS
6300.0
X10245
86 X10245
X10010
1 X770
2 X770
GROUND
DISTRIBUTION
0670.4
X10010GROUND
DISTRIBUTION
0670.4
58g
FUSE DETAILS
0670.3
 

.35 WS/VI2.35 WS/GE3
B25y
FUEL TANK
SENSOR II .5 BR/GE7
2 X679
1 X679
15
.5 SW/WS2
X188
INSTRUMENT
CLUSTER
6211.0
X11291
1 X13
B6
FUEL LEVEL
SENSOR 2 X1241
1 X1241
.5 GE15
31
3 X271
.5 BR/SW
.5 BR/GE
1 X271
15
.35 BR/RT1
10 X32
1 X32
X173
GROUND
DISTRIBUTION
0670.4
A2w
INSTRUMENT
CLUSTER
2) VEHICLE
SPEED
OUTPUT 2
X17
.35 SW/WS
.35 GR/RT
A35y
BOARD
COMPUTER
(BC – LOW)
S7
COMBINATION
SWITCH
10) PROGRAM MO-
DUS 10TXD RXD
DATA LINK
0670.5.5 BR/GE
.5 BR/GE
A2w
INSTRUMENT
CLUSTER
.5 BR/SW.5 BR/SW
X805
INSTRUMENT
CLUSTER
6211.0
31415
.5 WS/SWA6000
ENGINE CONTROL
MODULE (DME)
X6000
24X20
.35 WS/SW
31
F315AF4615A
83
.35 BR/RT
.35 BR




7000.0 COMPONENT LOCATION CHART







 

COMP. DESCRIPTION LOCATION7100.0 8500.0
A2w . . INSTRUMENT CLUSTER . . . . . . . . . . . . LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

A8 . . . .

CRUISE CONTROL MODULE
(TEMPOMAT) . . . . . . . . . . . . . . . . . . . . .

behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0





A12 . .



SUPPLEMENTAL RESTRAINT
SYSTEM CONTROL MODULE . . . . .


below rear seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0



A18 . . HIFI AMPLIFIER . . . . . . . . . . . . . . . . . . . . in LH side of luggage compartment behind trim panel . . . . . . . . . . . . . . . . . . 0

A35y . BOARD COMPUTER (BC – LOW) . . . . center of dash center console

A36 . .
REAR WIPER/WASHER INTERVAL
CONTROL MODULE . . . . . . . . . . . . . .
in lift gate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0



A51 . .
WIPER/WASHER MODULE . . . . . . . . . .
behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0

A52 . .

SLIP CONTROL MODULE (ABS/ASC) .

behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0




A56 . .

TILT/SLIDE SUNROOF CONTROL
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . .
in roof panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


A64 . . WIPER/WASHER MODULE (LOW II) . . behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
0

A104 .
BODY ELECTRONICS CONTROL
MODULE (ZKE IV) . . . . . . . . . . . . . . . .
behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0



A107 .
INTEGRATED HEATING– AND
CLIMATE CONTROL MODULE . . . . .
center of dash center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0



A110 .
DIGITAL CLOCK . . . . . . . . . . . . . . . . . . . .
center of dash center console



A113 . SEAT OCCUPANCY DETECTOR . . . . . under RH front seat


A837 .

ELECTRONIC IMMOBILIZER
CONTROL MODULE (EWS III) . . . . .
below LH side of dash




A6000 ENGINE CONTROL MODULE (DME) . . rear RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION

A8500
TRANSMISSION CONTROL MODULE
(EGS) . . . . . . . . . . . . . . . . . . . . . . . . . . .
rear RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0



B1 . . . .
RIGHT FRONT SPEED SENSOR –
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
on RH front wheel, above brake caliper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0



B2 . . . .
LEFT FRONT SPEED SENSOR – ABS
on LH front wheel, above brake caliper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

B3 . . . . RIGHT REAR SPEED SENSOR – ABS on RH rear wheel, above brake caliper
B4 . . . . LEFT REAR SPEED SENSOR – ABS . on LH rear wheel, above brake caliper
B6 . . . . FUEL LEVEL SENSOR . . . . . . . . . . . . . . below LH side of rear seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

B8y . . .

PRESSURE SWITCH . . . . . . . . . . . . . . . .

near RH headlight assembly




B9 . . . . INTERMEDIATE PRESSURE SWITCH near RH headlight assembly
B10 . . VEHICLE SPEED SENSOR . . . . . . . . . . on differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

B14 . .
EVAPORATOR TEMPERATURE
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . .
RH side of LH footwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0



B16 . .
LEFT FRONT BRAKE PAD SENSOR . .
on LH front wheel, above brake caliper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

B17 . . RIGHT REAR BRAKE PAD SENSOR . . behind RH rear wheel
B18 . . BRAKE FLUID LEVEL SWITCH . . . . . . . rear LH side of engine compartment top of brake fluid reservoir . . . . . . . . . 0


B21 . .
ON–BOARD COMPUTER
TEMPERATURE SENSOR . . . . . . . . .
in the engine compartment lower LH side of engine compartment . . . . . . .

0



B25y .
FUEL TANK SENSOR II . . . . . . . . . . . . .
below RH side of rear seat



B72 . . FUEL TANK PRESSURE SENSOR . . . RH rear wheel well, behind trim panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
B78 . . DRIVER’S SIDE IMPACT SENSOR . . . LH B–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION

B79 . .
PASSENGER’S SIDE IMPACT
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . .
RH B–pillar





B6203
CRANKSHAFT POSITION/RPM
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . .
under RH front of car rear of radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0



B6205
INTAKE AIR TEMPERATURE SENSOR
LH side of engine near oil level stick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

B6209 HALL EFFECT CAMSHAFT SENSOR . front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

B6217 HOT FILM AIR MASS METER . . . . . . . . top front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
B6231 OIL PRESSURE SWITCH . . . . . . . . . . . . LH front of engine below intake manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

B6232

ENGINE COOLANT TEMPERATURE
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . .

behind RH fresh air cowl below intake manifold . . . . . . . . . . . . . . . . . . . . . . .


0



B6240

KNOCK SENSOR . . . . . . . . . . . . . . . . . . .

top front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0


B9508 PRESSURE SWITCH . . . . . . . . . . . . . . . . near RH headlight assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0


B62001

OXYGEN SENSOR (IN FRONT OF
CATALYTIC CONVERTER) . . . . . . . . .
under center of car . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0



B62002
OXYGEN SENSOR (BEHIND
CATALYTIC CONVERTER) . . . . . . . . .
under center of car . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0



C101 .
CONTACT RING . . . . . . . . . . . . . . . . . . . .
top of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

D100 . DATA LINK CONNECTOR . . . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

D110 . OBD II CONNECTOR . . . . . . . . . . . . . . . . center console right . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
E7 . . . . LEFT HEADLIGHT . . . . . . . . . . . . . . . . . . front LH side of engine compartment

E8 . . . .
RIGHT HEADLIGHT . . . . . . . . . . . . . . . . .
front RH side of engine compartment



E9 . . . . REAR DEFOGGER I . . . . . . . . . . . . . . . . on lift gate