1998 BMW 318ti Electrical Troubleshooting Manual





 

3450.0 SLIP CONTROL (ABS)




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14
FUSE DETAILS
0670.316P90
FRONT POWER
DISTRIBUTION BOX
F275A
X10018
F3830A
X1139424
A202
ABS CONTROL
MODULE/HY-
DRAULIC UNIT
GROUND
DISTRIBUTION
0670.4
32X10018
F4615A
2
F215A
X1001720
F1030A
X10015
21 X17
23 X16
21
A2w
INSTRUMENT
CLUSTER1
X78
2 X78
S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED
A6000
ENGINE CONTROL
MODULE (DME)
79 X6000
.5 WS/GR/GE
21
9 X20
.75 BR/RT
1816
FUSE DETAILS
0670.3
4259X11394
7
DATA LINK
0670.5
, .#
8
GROUND
DISTRIBUTION
0670.4
FUSE DETAILS
0670.3
1.5 BL/RT
.35 WS/VI X181
TXD


.35 BL/RT .35 GR/SW/GEBRAKE LIGHTS
6325.0FUSE DETAILS
0670.3 FUSE DETAILS
0670.3
31
X116
X116
S29
BRAKE LIGHT
SWITCH
1) NORMAL
STATE
2) BRAKE PEDAL
DEPRESSED
31
WITH EGS





 

6 1
SLIP CONTROL (ABS)




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2519202322 X11394
.5 BR
12X11412 X14221X11312 X143
B2
LEFT FRONT
SPEED SENSOR –
ABSB4
LEFT REAR SPEED
SENSOR – ABSB1
RIGHT FRONT
SPEED SENSOR –
ABSB3
RIGHT REAR
SPEED SENSOR –
ABS
LEFT FRONT
PULSE WHEELA202
ABS CONTROL
MODULE/HY-
DRAULIC UNIT
LEFT REAR PULSE
WHEELRIGHT FRONT
PULSE WHEELRIGHT REAR
PULSE WHEEL
.5
BR/
RT.5 BL .5
BR.5 GE .5
BR.5 GE/SW .5
GE/
BR
3X114
GROUND
DISTRIBUTION
0670.4
3X113
GROUND
DISTRIBUTION
0670.4
1 1 1 1
1 1
, .#, .#



 !
F215A
3450.1-01
3450.1-00
Y1
ABS HYDRAULIC
UNITP90
FRONT POWER
DISTRIBUTION BOX
K125
ABS PUMP MOTOR
RELAY, TIMED
A52
SLIP CONTROL
MODULE
(ABS/ASC)
17 X1170
41 X11395
TXD 36


F1030AF275A
A2w
INSTRUMENT
CLUSTER
42528311
S30
BRAKE LIGHT
SWITCH F38
30AF4615A
3
3450.1-00
3450.1-00
32 11
B2
LEFT FRONT
SPEED SENSOR –
ABS 3450.1-0313 34
B4
LEFT REAR SPEED
SENSOR – ABS 3450.1-0312 33
B1
RIGHT FRONT
SPEED SENSOR –
ABS 3450.1-0314 35
B3
RIGHT REAR
SPEED SENSOR –
ABS 3450.1-033776
A6000
ENGINE CONTROL
MODULE (DME) 3450.1-02A8500
TRANSMISSION
CONTROL MODULE
(EGS) 3450.1-02
2232425262227294
F215A
S6
ASC SWITCH 3450.1-02
39
LIGHT SWITCH
DETAILS
6300.0
404
58g
X1170
15
2
S29
BRAKE LIGHT
SWITCH
X11395
M93
AUXILIARY
THROTTLE
POSITION MOTOR
(ADS)R6255z
THROTTLE
POSITION SENSOR
(ASC)
1930831
X1170X11395X1170
X1170X11395
3450.1-02
3450.1-00X1170
WITH EGS
3450.1 SLIP CONTROL (ABS/ASC)


 



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Pin Assignments


E = Input, A = Output, M = Ground
X1170
Pin Type Description/Function Connection
1
ALeft front outlet valveABS hydraulic unit
2ALeft front inlet valveABS hydraulic unit
3MGroundGround point
4EVoltage supplyFuse 21
5Not used
6E/ACAN-LOWDME/EGS module
7E/ACAN-HIGHDME/EGS module
8AAccelerator pedal position, voltageAccelerator pedal position sensor (ASC)
9MAccelerator pedal position, groundAccelerator pedal position sensor (ASC)
10Not used
11ESpeed signalLeft front speed sensor (ABS)
12ESpeed signalRight front speed sensor (ABS)
13ESpeed signalLeft rear speed sensor (ABS)
14ESpeed signalRight rear speed sensor (ABS)
15ESignal pump motorABS pump motor relay
16Not used
17EBrake pedal positionBrake light switch
18Not used
19MGroundGround point
20Not used
21Not used
22ARight rear outlet valveABS hydraulic unit
23ARight front inlet valveABS hydraulic unit
24ARight front outlet valveABS hydraulic unit
25ALeft rear outlet valveABS hydraulic unit
26ALeft rear inlet valveABS hydraulic unit
27ARight rear inlet valveABS hydraulic unit
28AActivate relayABS pump motor relay
29ASeperator valveABS hydraulic unit
30EAccelerator pedal position, signalAccelerator pedal position sensor (ASC)


 



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Pin Assignments


E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
31
AABS signalABS pump motor relay/Hydraulic unit
32ASensor groundLeft front speed sensor (ABS)
33ASensor groundRight front speed sensor (ABS)
34ASensor groundLeft rear speed sensor (ABS)
35ASensor groundRight rear speed sensor (ABS)
36E/ATxD diagnostic data linkData link connector
37ARight rear speed signalDME module
38Not used
39EASC signalASC switch
40AABS signalInstrument cluster
41MGroundGround point
42AASC signalInstrument cluster
X11395
Pin Type Description/Function Connection
1
AAuxiliary throttle position, voltageAuxiliary throttle position motor (ADS)
2MGroundGround point
3AAuxiliary throttle position, groundAuxiliary throttle position motor (ADS)
4EVoltage supplyFuse 38
5AABS signalABS hydraulic unit





 

X11395
X11393
SLIP CONTROL (ABS/ASC)



!



K125
ABS PUMP MOTOR
RELAY, TIMED


32X10018
1 X78
.5 GR/SW/GEX181
1.5 BL/RT
216X1001814X1001720X10015
212 X78
692
48 X11393
23 X16
17
BRAKE LIGHTS
6325.0
440
.75 BL/RT
A52
SLIP CONTROL
MODULE
(ABS/ASC) S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED
.5 BR/SW 2.5 RT/GN/GE
A2w
INSTRUMENT
CLUSTERP90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3FUSE DETAILS
0670.3
GROUND
DISTRIBUTION
0670.4
F4615AF215AF3830A F275AF1030A
.5 BL/BR12 X17
FUSE DETAILS
0670.3 FUSE DETAILS
0670.3
42
FUSE DETAILS
0670.3
3450.1-01
.35 RT/BL
21
, .#
X116
X116
S29
BRAKE LIGHT
SWITCH
1) NORMAL
STATE
2) BRAKE PEDAL
DEPRESSED
30X1170
32 X6255
8
11X603112 .5 WS/RT .5 BL/GN
.5 GR/SW .5 GR/BL
R6255z
THROTTLE
POSITION SENSOR
(ASC)
.5 GR/WS
X11704
1 X6255
WITH EGS





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28 X1170
.5 BR/SW
23 X11765
18194231
.5 BR/BL.75 BR/WS.75 BR/GN/GE.75 BR/RT.5 BR/GN.5 BR/WS/GE
262524223136 X1170
.35 WS/VI
19
20X1176
2.5 RT/GN/GE
A52
SLIP CONTROL
MODULE
(ABS/ASC)
Y1
ABS HYDRAULIC
UNIT
1) LEFT FRONT
SOLENOID
VA LV E
2) RIGHT FRONT
SOLENOID
VA LV E
3) LEFT REAR
SOLENOID
VA LV E
4) RIGHT REAR
SOLENOID
VA LV E
14) PUMP MOTOR
15) SEPARATING
VA LV E A52
SLIP CONTROL
MODULE
(ABS/ASC)
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4 TXD
16 24 25
.5 BR/BL/GE .5 BR/GR/GE .75 BR/SW/GE
29 27 22
17
1 1 2 2 3 3 4 4 15
14
53115
3450.1-00X1170
X1541
.35 RT/BL .35 RT/BL
.35 RT/BL
2.5 RT/GN/GE 2.5 RT/BL/GE
DATA LINK
0670.5 X11284
, .#
9.5 WS/BR
10 X6031
.5 GR/WS
X1170X11395
, ..
2.5 RT/GN/GE
GROUND
DISTRIBUTION
0670.4
X11703
GROUND
DISTRIBUTION
0670.42
GROUND
DISTRIBUTION
0670.4X1139541
1 1 1 1





!


SLIP CONTROL (ABS/ASC)
5P90
FRONT POWER
DISTRIBUTION BOX
.35 GR/RT
S6
ASC SWITCH
1) OFF
2) ON
6
.5 BR
A52
SLIP CONTROL
MODULE
(ABS/ASC)X521
4 6
39 X1170
FUSE DETAILS
0670.3
2 X521
LIGHT SWITCH
DETAILS
6300.058g
GROUND
DISTRIBUTION
0670.4 .35 BL/VI
F215A
7 .5 GE
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
8685X8500
A6000
ENGINE CONTROL
MODULE (DME)
8586
.35 SW.35 GE.35 GE.35 SW79
X6000
.75 BR/RT
X7845
X7846
.35 GE .35 SW
2 X20
1
37
9
.5 WS/GR/GE
2X10017
CAN LOW CAN HIGH
2 1
,  "
 

21X10094
1 3
M93
AUXILIARY
THROTTLE
POSITION MOTOR
(ADS)
1 SW/BR 1 SW/GN
X11395