1999 BMW 318ti Electrical Troubleshooting Manual








Pin Assignments


 

E = Input, A = Output, M = Ground
X13252
Pin Type Description/Function Connection
1
ACentral arrest signalLock motors
2AUnlock signalLock motors
3Not used
4AAutomatic interior light voltage supplyInterior lights
5Not used
6AVoltage supplyPower window motor, driver’s door
7AVoltage supplyPower window motor, passenger’s door
8EPower supplyFront power distribution box, fuse 14
9ALock signalLock motors
10EPower supplyFront power distribution box, fuse 35
11Not used
12EPower supplyFront power distribution box, fuse 33
13EMotor signalPower window motor, driver’s door
14EMotor signalPower window motor, passenger’s door
15MGroundGround point
X13253
Pin Type Description/Function Connection
1
EUnlock signalDoor lock motor, driver’s door
2EUnlock signalDoor lock motor, passenger’s door
3EUnlock signalLuggage compartment motor
4EData signalAnti-theft system control module (Alpine)
5Not used
6Not used
7ACrash signalSupplemental restraint system control
module
8ERevolution signalPower window motor, driver’s door
9ERevolution signalPower window motor, passenger’s door
10Not used








Pin Assignments


 

E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
11
Not used
12Not used
13ECentral arrest signalDoor lock switches
14ELock signalDoor lock motor, driver’s door
15ELock signalDoor lock motor, passenger’s door
16ELock signalLuggage compartment motor
17EData signalAnti-theft system control module (Alpine)
18Not used
19ELock signalCentral locking switch
20Not used
21Not used
22Not used
23AVoltage supply (revolution)Driver’s window motor
24AVoltage supply (revolution)Passenger’s window motor
25Not used
26Not used
X13254
Pin Type Description/Function Connection
1
EDoor handle contactAnti-theft system control module (Alpine)
2EDoor signalDoor jamb switch, driver’s door
3EDoor signalDoor jamb switch, passenger’s door
4Not used
5Not used
6EOPEN signalPower window switch, driver’s door
7ECLOSE signalPower window switch, driver’s door
8EOPEN signalPower window switch, passenger’s door
9ECLOSE signalPower window switch, passenger’s door
10Not used
11Not used
12Not used








Pin Assignments


 

E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
13
Not used
14Not used
15Not used
16Not used
17Not used
18AComfortable closingSunroof control assembly/Comfort relay,
Folding sunroof
19AFolding sunroof releaseSunroof control assembly/Comfort relay,
Folding sunroof
20Not used
21Not used
22Not used
23Not used
24Not used
25Not used
26Not used

X13254
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)










CENTRAL BODY ELECTRONICS (ZKE IV)
FUSE DETAILS
0670.3
GROUND
DISTRIBUTION
0670.4
X10010
5
10F35
25A
P90
FRONT POWER
DISTRIBUTION BOX
12
FUSE DETAILS
0670.3 8 X10016
F1430A
X1018221
2.5 SW 2.5 BL/GR8 X13252
X10182
26F43
5A
4
6F33
10A
12 X1325210FUSE DETAILS
0670.3FUSE DETAILS
0670.3
9 11 X10182
GROUND
DISTRIBUTION
0670.4
X495
15X1325218 X13252919
.5 SW/GN
DATA LINK
0670.5
.5 WS/GE
.5 WS/VI
X276
15 X20
ZKE CENTRAL
LOCKING (ZV)
5126.0X10018
30h
.75 SW/GN
.5 SW/GN
.35 SW/GN
RXD TXD
2.5 WS
POWER TILT/SLIDE
SUNROOF (SHD)
5410.1
ELECTRIC FOLD-
ING SUNROOF
5410.4
START
1240.0
 

.35 SW/RT
X132537
.35 BR/SW
34 X74
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE

POWER
DISTRIBUTION
0670.2
18

X13254
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)









CENTRAL BODY ELECTRONICS (ZKE IV)
4 X13252
89
.35 BL/GNINTERIOR LIGHTS
6330.3
.75 RT/SW
ZKE POWER
WINDOWS (FH)
5133.0
 

.35 WS/GN
10 X13025
N12w
ANTI–THEFT
CONTROL
MODULE (ALPINE)
67
.35 SW/WS.35 VI/WS
X1325323 24
.35 GE/WS
89
.35 GE/GR.35 SW/GR
X1325213 14
1.5 GE/GN2.5 SW/WS
67
1.5 BL/GN2.5 VI/WS
9
4 X1325317
X180515
A837
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS III)
X450
X183378
S8
LIGHT SWITCH
2 X10182
X196LIGHT SWITCH
DETAILS
6300.0
.5 GR/SW 4 X14.5 BL/RT/GE
.5 BL/RT/GE .5 BL/RT/GE
.5 BL/RT/GE .5 WS/RT/GE .5 WS/RT/GE
X13168
.35 SW
2.5 GN
7
2.5 GN
X203
POWER
DISTRIBUTION
0670.2
.5 GN
3 X10182
S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
X33
1 X209
2
10
3
151 GR/SW

A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)









CENTRAL BODY ELECTRONICS (ZKE IV)
2
X13006
7
10 X6000
A6000
ENGINE CONTROL
MODULE (DME) .5 SW/VIX20
13 X1805
15
2 X352
1 X352
1 2
1
GROUND
DISTRIBUTION
0670.4 .5 SW/GN .5 BR/RT/GE
.35 GN
 

14 X1805
X443
.5 BR/GR/GE
A837
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS III)
S14
DRIVER’S DOOR
JAMB SWITCH
1) DOOR OPEN
2) DOOR
CLOSED
.5 BR/GR/GE
3
X495
2 X351
1 X351
1 2
GROUND
DISTRIBUTION
0670.4
X445
.5 BR/BL/GE
S13
PASSENGER’S
DOOR JAMB
SWITCH
1) DOOR OPEN
2) DOOR
CLOSED .5 BR/BL/GEX13254
ANTI–THEFT
SYSTEM (ALPINE)
6575.2
13
23 X17
A2w
INSTRUMENT
CLUSTER .5 BR/GR/GEX14
.5 BR/GR/GE.5 BR/GR/GE .5 BR/BL/GE X10182
1 X65
N17
CRASH CONTROL
MODULE
1
.5 BR/SW/GE
ANTI–THEFT
SYSTEM (ALPINE)
6575.2


LUGGAGE COMPARTMENT LID, DRIVER’S AND PASSENGER’S DOOR INPUT SIGNALS








CENTRAL BODY ELECTRONICS (ZKE IV)
X1001514P90
FRONT POWER
DISTRIBUTION BOX F7
5A
.5 WS/SW
FUSE DETAILS
0670.3
6X641
54
.5 WS/GN.5 WS/SW6 X660
M12
DRIVER’S DOOR
LOCK MOTOR
1) LOCK
2) UNLOCK
5 4 X660
.5 WS/GN
S47
DRIVER’S DOOR
LOCK SWITCH
0) OFF
3) CENTRAL
ARREST
0 3
1
.5 WS/RT
2 X747
X747
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
15
14 13X256
214 1
14 13
.35 WS/GR .35 WS/BR/GE
13 .35 WS/
GN
.35 WS/RT
10 X257
.35 WS/RT
X449
S302
CENTRAL LOCKING
SWITCH
0) OFF
1) LOCKED 01
1 4 X1292
X1292
2 12 1
2 1 3 X311
21
16 3 .35 WS/BL .5 WS/GN/GE X641X311
M17
LUGGAGE
COMPARTMENT
LOCK MOTOR
1) LOCK
2) UNLOCK
M13
PASSENGER’S
DOOR LOCK
MOTOR
1) LOCK
2) UNLOCK
 

S49
PASSENGER’S
DOOR LOCK
SWITCH
0) OFF
3) CENTRAL
ARREST
0 3
1
.35 WS/RT
2 X742
X742
19 X13253.35 RT/GN/GE
10 X256
.5 WS/RT
.35 WS/SW
12 X256
.35 RT/GN
.5 RT/GN.35 RT/GN.35 RT/GN







6133.0 HORN
P90
FRONT POWER
DISTRIBUTION BOX
F8
15A
X10015
16
FUSE DETAILS
0670.3
6
2.5 VI
2
2.5 VI
X223
POWER
DISTRIBUTION
0670.2 .5 VI
8 X56
30
2
1 VI/BL
2
H2
LEFT HORN
1
X1651 VI/BL
2
1H3
RIGHT HORN
86
85
.5 BR/RT
.5 BR/RT
1 X168
4X56
11 X32

K2
HORN RELAY
S4
HORN SWITCHS2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
X33
2 X209
87
GROUND
DISTRIBUTION
0670.4
1 BR 1 BR
1 X32
GROUND
DISTRIBUTION
0670.4 .75 BR
X173
X10013
 

2
10
3
R
X132X133
X132X133
5