1999 BMW 318ti Electrical Troubleshooting Manual





 
DRIVER’S SEAT









5200.0 POWER SEATS
P90
FRONT POWER
DISTRIBUTION BOX F40
30A
X10018
20
5X603
FUSE DETAILS
0670.3
S51
DRIVER’S SEAT,
SEAT CONTROL
SWITCH
3) SEAT HEIGHT
SWITCH
0) OFF
1) UP
2) DOWN
5) SEATBACK
SWITCH
0) OFF
1) FRONT
2) BACK
6) SEAT CUSHION
TILT SWITCH
0) OFF
1) UP
2) DOWN
7) SEAT
POSITION
SWITCH
0) OFF
1) FRONT
2) BACK
2121212121212
12 1
53 7
M53
DRIVER’S SEAT-
BACK RECLINER
MOTOR
6
1
1.5 GN/VI
2 X729
1.5 SW/VI
X6031210783412
M52
DRIVER’S SEAT
HEIGHT MOTOR 1 1.5 BL/GR
2 X728
1.5 VI/GR
M51
DRIVER’S SEAT
MOVEMENT
MOTOR 1 1 GN/GE
2 X726
1 SW/GE
M50
DRIVER’S SEAT
CUSHION TILT
MOTOR 2 1 VI/RT
1 X7271 BL/RT
X13006
GROUND
DISTRIBUTION
0670.4
6
GN SW BL VI GN SW VI BL00 00 00 0 0





 
PASSENGER’S SEAT








POWER SEATS
P90
FRONT POWER
DISTRIBUTION BOX F5
30A
X10015
10
5 X604
FUSE DETAILS
0670.3
S56
PASSENGER’S
SEAT, SEAT
CONTROL SWITCH
3) SEAT HEIGHT
SWITCH
0) OFF
1) UP
2) DOWN
5) SEATBACK
SWITCH
0) OFF
1) FRONT
2) BACK
6) SEAT CUSHION
TILT SWITCH
0) OFF
1) UP
2) DOWN
7) SEAT
POSITION
SWITCH
0) OFF
1) FRONT
2) BACK M61
PASSENGER’S
SEAT CUSHION
TILT MOTOR
6
1
1 BL/RT
2 X735
1 VI/RT
X60412438712 10
M60
PASSENGER’S
SEAT MOVEMENT
MOTOR 2 1 SW/GE
1 X734
1 GN/GE
M59
PASSENGER’S
SEAT HEIGHT
MOTOR 1 1.5 BL/GR
2 X737
1.5 VI/GR
M58
PASSENGER’S
SEATBACK RECLIN-
ER MOTOR 1 1.5 GN/VI
2 X7361.5 SW/VI
GROUND
DISTRIBUTION
0670.4
X495
VI BL GN SW VI BL SW GN 21
2
1212
1212
1212
1
53 7
6 00 00 00 0 0

01
0 2
10 Test
9
8
7
6154
14
13
12
11
3
2
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4 X13173GROUND
DISTRIBUTION
0670.4
1.5 RT/GE
4
X63
.5 RT/GE









5203.0 HEATED SEATS
X100176P90
FRONT POWER
DISTRIBUTION BOX F23
5A
LIGHT SWITCH
DETAILS
6300.0
X100158F4
15A
86 X63
FUSE DETAILS
0670.3
K9
UNLOADER RELAY,
TERMINAL 15
2 4
6
5X651
231
X651
S53
DRIVER’S SEAT,
SEAT HEATER
SWITCH
0) OFF
1) MINIMUM
2) MAXIMUM
.5 WS/RT .5 WS/GN
.5 RT/GE
X13129
2 2 X732X733
1 X7331 X732
E56
DRIVER’S SEAT-
BACK HEATER E57
DRIVER’S SEAT
HEATER
X13006X494X495
4 6
5X658
2 3 1 X658
S54
PASSENGER’S
SEAT, SEAT
HEATER SWITCH
0) OFF
1) MINIMUM
2) MAXIMUM
.5 WS/GE .5 WS/BL
2 2 X741
X740
1 X7401 X741
E59
PASSENGER’S
SEATBACK HEATER E58
PASSENGER’S
SEAT HEATER
.5 BR .5 RT/GE .5 RT/GE.5 GR/RT .5 GR/RT.5 GR/RT
58g
FUSE DETAILS
0670.3
 

.5 BR .5 BR
.5 BR
X173
GROUND
DISTRIBUTION
0670.4
X494GROUND
DISTRIBUTION
0670.4
01
0 2
10 Test
9
8
7
6154
14
13
12
11
3
2
8730
86
85
X14121.5 RT/GE

5410.1 POWER TILT/SLIDE SUNROOF (SHD)







 

31
2X272
A56
TILT/SLIDE SUN-
ROOF CONTROL
ASSEMBLY 30
4X13176
.5 WS/GE 5.5 SW/GE

GROUND
DISTRIBUTION
0670.4
X2721
POWER
DISTRIBUTION
0670.2
P90
FRONT POWER
DISTRIBUTION BOX X9
X0
10 RT
2 X10015
F130A
FUSE DETAILS
0670.3
1 X10015
P90
FRONT POWER
DISTRIBUTION BOX
2.5 RT

+ ,-.







X64312
X131766
A56
TILT/SLIDE SUN-
ROOF CONTROL
ASSEMBLY 4 X643
1 X13176
.35 SW/GN 3.35 SW/RT
3
X1325419
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)18
.5 WS/GE .5 SW/GE .5 GR/RT
58g
LIGHT SWITCH
DETAILS
6300.0
.5 BR

S38
TILT/SLIDE SUNROOF SWITCH
(SHD)
0) OFF
1) OPEN SLIDING SUNROOF/
LOWER TILT SUNROOF
2) CLOSE SLIDING SUNROOF/
RAISE TILT SUNROOF
3) CLOSE
10
3 2

+ ,-.









P90
FRONT POWER
DISTRIBUTION BOX F1
30A
X10015
2
K45
FOLDING SUN-
ROOF COMFORT
RELAY X1814
FUSE DETAILS
0670.3
M24z
FOLDING SUN-
ROOF MOTOR
2

5410.4 ELECTRIC FOLDING SUNROOF
 

X18147
X1325419 18
3
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4
X495
310 0 0
1 2 X6433
946
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
1 X6272
58
LIGHT SWITCH
DETAILS
6300.0
4X643
2
58g
S238
FOLDING SUN-
ROOF SWITCH
0) OFF
1) OPEN
2) OPEN AUTO-
MATICALLY
3) CLOSE .35 GR/RT
.35 WS/GE .35 SW/GE .35 SW/GN .35 SW/RT2.5 SW 2.5 GN

C
C
6BCB




2 6
F3525A
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
7
M23
PASSENGER’S
WINDOW MOTOR
15 B4
S13
PASSENGER’S
DOOR JAMB
SWITCH
M21
DRIVER’S WINDOW
MOTOR
92471482313
S127y
PASSENGER’S
POWER WINDOW
SWITCHS126y
DRIVER’S POWER
WINDOW SWITCH
LIGHT SWITCH
DETAILS
6300.0
B
F3310A
1012
5133.0-015133.0-01
P90
FRONT POWER
DISTRIBUTION BOX F43
5A
18 4
C
4N12w
ANTI–THEFT
CONTROL MODULE
(ALPINE)
5133.0-02
A837
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS III)
5133.0-02
6100.0-02X10182
X13252X13253X13254
A =
B
=
C =
D =
A1517
A
9
11RXD
TXD
F1430A
B8
POWER
DISTRIBUTION
0670.2
F75A
9D
M6510
STARTER
A12 6350.0-021
S8
LIGHT SWITCH
2
B192114163
M12
DRIVER’S DOOR
LOCK MOTOR 5126.0-02
M17
LUGGAGE
COMPARTMENT
LOCK MOTOR 5126.0-03
15 2
M13
PASSENGER’S
DOOR LOCK
MOTOR 5126.0-02

C13
S47
DRIVER’S DOOR
LOCK SWITCH
A5
E32z
REAR CENTER
INTERIOR LIGHT
P90
FRONT POWER
DISTRIBUTION BOXF3310A
E34
FRONT DOME
LIGHT/MAP READ-
ING ASSEMBLY
C7
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE A
S49
PASSENGER’S
DOOR LOCK
SWITCH6300.0
30h
8
3
6330.3-001918
6100.0-03
6100.0-036100.0-01
6100.0-01
6100.0-02
6100.0-00
E61
LEFT FRONT
FOOTWELL LIGHT6330.3-00
E62
RIGHT FRONT
FOOTWELL LIGHT6330.3-00
M16
GAS FILLER LOCK
MOTOR 5126.0-03
S302
CENTRAL LOCKING
SWITCH6100.0-03
19
K45
FOLDING SUN-
ROOF COMFORT
RELAYA56
TILT/SLIDE SUN-
ROOF CONTROL
ASSEMBLY5410.1-01 WITH TILT/SLIDE
SUNROOFWITH FOLDING
SUNROOF
5410.4-00S14
DRIVER’S DOOR
JAMB SWITCH D
6100.0-02
S2
IGNITION SWITCH
15
3
6100.0-01
6330.3-00
1D
N17
CRASH CONTROL
MODULE
6100.0 CENTRAL BODY ELECTRONICS (ZKE IV)








Pin Assignments


 

E = Input, A = Output, M = GroundA = X10182
18-Pins, black
B = X1325215-Pins, black
C = X1325326-Pins, yellow
D = X1325426-Pins, green
X10182
Pin Type Description/Function Connection
1
ECrash signalCrash control unit
2ELight signalLight switch
3EIgnition switch, terminal 15Ignition switch, terminal 15
4EPower supplyFront power distribution box, fuse 43
5MGroundGround point
6Not used
7Not used
8Not used
9ADiagnosis RxD-signalData link connector
10Not used
11E/ADiagnosis TxD-signalData link connector
12EStart signalStarter
13Not used
14Not used
15ADrive-away protectionElectronic immobilizer control module (EWS
III)
16Not used
17Not used
18EPower supplyFront power distribution box