1999 BMW 318ti Electrical Troubleshooting Manual





0670.2-01
6 RT
1 WS/GN







POWER DISTRIBUTION
181 X10036
P90
FRONT POWER
DISTRIBUTION BOX
F29
7.5A
FUSE DETAILS
0670.3
X1001720F30
7.5A
2 1 X10035
F117.5A
K46
HIGH BEAM LIGHT
RELAY
X102622
6 X10262
30
87
X100166 5
F15
15AF330A
6 X45K48
LOW BEAM LIGHT
RELAY
226 X44
K47
FRONT FOG LIGHT
RELAY
9 X10016
4F12
7.5A
1 WS/BL 1 GE/GN 1 GE/BL 1 GE/BR 2.5 RT/BR/GE2.5 WS/BL 1 RT/GE2.5 RT 1.5 RTX1073
1 RT
X44
1030 56a 56a 56b 56b NSW30 30
87
87 1.5 RT
 

2.5 RT/WS
P95
AUXILIARY FUSE
BOX
X102502
1 X10250
F4715A
1 RT/GR/GE
30
X45
1 RT
18 X10182
5126.0
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
.75 RT
6100.0
6330.3
X10015109 X10015
F530A
2.5 RT/SW2.5 RT
30
X1001820 19 X10018
F4030A
2.5 RT/GE2.5 RT
30


8 2.5 SW/GE730
28







POWER DISTRIBUTION
P90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3
261
F43
5AF4415A
.75 VI/WS 1.5 VI/SWX223
8 X56
.5 VI
X100183230 X10018
F457.5AF4615A
1.5 VI/WS 1.5 VI/GE
210 3
0670.2-04
K2
HORN RELAY
8 X1805
2.5 GN/SW
R
2 X33
210 3
50
6210 3
.5 GN/WS15I
210 3
2.5 GN15
5X209
4 RT
X331
0670.2-01
4 RT
S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
X209
2 4 3 1
2.5 GN
2.5 VI
2.5 VI
RR R R
1240.06133.0
24 23
F42
7.5A
.5 VI/GN1.5 VI
R
 

NOT USED
X10259
2.5 VI
A837
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS III)
5126.0
6135.1

2.5 GN
X1001612
.5 GN/BL/GE








POWER DISTRIBUTION
2P90
FRONT POWER
DISTRIBUTION BOX
F21
5A
FUSE DETAILS
0670.3
6F23
5A
8 1 X1002612 F24
10AF2610A
14 X1001716 15 X10017
11 X10016
F275AF285AF165A
3 X10182
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
.5 GN/BL .75 GN/SW 1.5 GN/WS .5 GN/VI .5 GN/GR .5 GN/VI2.5 GN.5 GN .5 GN .5 GNX203
4
.75 GN/GEF22
5A
10
.35 GN/RTF25
5A
5 X17
A2w
INSTRUMENT
CLUSTER .5 GN
2.5 GN
0670.2-03
15 15 15 15 15 15 15 1230.0
6211.0X20
21
2.5 GN
8 X58
K4
BLOWER RELAY .35 GN
86
6450.6
 

15 15
6100.0ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20
6410.7











POWER DISTRIBUTION
FUSE DETAILS
0670.3
8F14
30A
7X10016
2.5 RT/BL2.5 RT
2F1
30A
2.5 RT/VI
30P90
FRONT POWER
DISTRIBUTION BOX 2.5 RT
P90
FRONT POWER
DISTRIBUTION BOX 0670.2-00
X930
X10015
X100151
30
 

X10016


FUSES 1, 2, 3, 4, AND 5








0670.3 FUSE DETAILS
P90
FRONT POWER
DISTRIBUTION BOX F1
30A
A51
WIPER/WASHER
MODULE 14 X285
15
2
F330A
6
K9
UNLOADER RELAY,
TERMINAL 15 6 X63
F415A
8 X10015
A56
TILT/SLIDE SUN-
ROOF CONTROL
ASSEMBLY 2.5 RT/VI
2.5 RT/VI2.5 RT/BR/GE 1.5 RT/VI
5410.16160.15203.0
A36
REAR WIPER/
WASHER INTERVAL
CONTROL MODULE 2 X13057
2.5 RT/BR/GE
6160.1
2.5 RT/BR/GE
X10252
6 X14
WIPER/WASHER
(HIGH)
 

1.5 RT/BR/GE
1 X2722 X1814K45
FOLDING SUN-
ROOF COMFORT
RELAY 2.5 RT/VI
5410.4
2.5 RT/VI
WITH TILT/SLIDE
SUNROOF
WITH FOLDING
ROOFF2
5A
4
Y199
CARBON
CANISTER VALVE 2 X13170
1210.20
2 X14
1 RT/WS/GE
1 RT/WS/GE
S56
PASSENGER’S
SEAT, SEAT
CONTROL SWITCH 5 X604
F530A
10
5200.0
2.5 RT/SW
22 X14
2 X279
2.5 RT/SW
2.5 RT/SW/GE




FUSES 6 AND 7







FUSE DETAILS
P90
FRONT POWER
DISTRIBUTION BOX
K13
REAR DEFOGGER
RELAY 6 X292
F630A
12
2.5 RT/BR
6424.0
F75A
14 X10015
13 X13
X1234
S47
DRIVER’S DOOR
LOCK SWITCH .5 RT/GNM12
DRIVER’S DOOR
LOCK MOTOR 6 X660
.5 RT/GN
M13
PASSENGER’S
DOOR LOCK
MOTOR 6 X641
.5 RT/GN
S49
PASSENGER’S
DOOR LOCK
SWITCH 2 X742
.35 RT/GN
M17
LUGGAGE
COMPARTMENT
LOCK MOTOR X311
2 X747
1112 X25712 .35 RT/GN .35 RT/GN.35 RT/GN .75 RT/GN
.75 RT/GN
6100.0 30
11 X256
.5 RT/GN
6100.0
6100.06100.0 6100.0
.35 RT/GN
3
 

5126.05126.0
5126.0 5126.0
5126.0
S302
CENTRAL LOCKING
SWITCH X1292
.35 RT/GN
4
5126.06100.0




FUSES 8 AND 9







FUSE DETAILS
P90
FRONT POWER
DISTRIBUTION BOX
K2
HORN RELAY 6 X56
F815A
16
1 RT/GR/GE
6133.0
F920A
18 X10015
4 X322
N9
RADIO 9 X18126
1.5 RT/WS
6510.1 30
N9
RADIO 9 X18126
1.5 RT/WS
6510.0
A18
HIFI AMPLIFIER 1 X17179
6510.1
X19513
1.5 RT/WS
2.5 RT/WS STEREO HIFI2.5 RT/WS
 

1.5 RT/WS
H66
SUBWOOFER 2 X17159
6510.1
2.5 RT/WS
X17319
1.5 RT/WS
2.5 RT/WS
WITH SUBWOOFER1 X605




FUSES 10, 11, AND 12







FUSE DETAILS
P90
FRONT POWER
DISTRIBUTION BOX56b
F11
7.5A
2
K125
ABS PUMP MOTOR
RELAY, TIMED 8 X11393
F1030A
20
2.5 RT/BL
3450.1
E14
RIGHT LOW BEAM
LIGHT
56b
F12
7.5A
4
E13
LEFT LOW BEAM
LIGHTX10016
X10015
2 X100752 X10070
6312.0
6312.0
E8
RIGHT HEADLIGHT E7
LEFT HEADLIGHT
1 GE/GN1 GE/BL