1999 BMW 318ti brake sensor




 
Pin Assignments


 

E = Input, A = Output, M = Ground
X16
Pin Type Description/Function Connection
1
EHigh beam indicator controlCombination switch
2ETerminal 58g, instrument illumination powerDimmer
3ERight turn signal indicator controlHazard flasher relay
4ELeft turn signal indicator controlHazard flasher relay
5EWarning lamp for EGS fault (information
signal transmission oil temperature)Transmission control module (EGS)
6Not used
7Not used
8Not used
9Not used
10Not used
11Not used
12E/ATxD diagnostic data linkData link connector
13Not used
14EAirbag warning lamp (SRS) controlSupplemental restraint system control
module
15Not used
16E“Check engine” indicator controlEngine control module (DME)
17EPark brake warning lamp controlPark brake switch
18EBrake fluid warning lamp controlBrake fluid level switch
19EBrake pad wear warning lamp controlBrake pad sensors
20ECrankshaft RPM speed signal TDEngine control module (DME)
21Not used
22EVoltage supply, terminal 30Front power distribution box, fuse 31
23EVoltage supply, terminal 15 for indicator and
warning lampsFront power distribution box, fuse 27
24MGround supply, terminal 31 for instrument
cluster electronicsGround point
25Not used
26Not used

INSTRUMENT CLUSTER
INDICATORS
GROUND
DISTRIBUTION
0670.4






3
GROUND
DISTRIBUTION
0670.4A2w
INSTRUMENT
CLUSTER
HEADLIGHTS/FOG
LIGHTS
6312.0TURN/HAZARD
LIGHTS
6313.0LIGHT SWITCH
DETAILS
6300.0
X178.35 WS1
.5 BL/GN
4
.5 BL/BR
X163
.5 WS/RT
X171
.5 GR/RT
X162
519 X16
.5 GR/BR
A8500
TRANSMISSION
CONTROL MODULE
(EGS)2 X713
X1322 .5 GE
X850025
2X118
1X118
1 X713
X13006
.5 GE
B16
LEFT FRONT
BRAKE PAD
SENSOR
.5 GE
B17
RIGHT REAR
BRAKE PAD
SENSOR
.5 GR/BR31
!
X173
14 X10017
23
F275AP90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3
X69
 

X17
25
10 X10016
F1515AP90
FRONT POWER
DISTRIBUTION BOX
NSW
FUSE DETAILS
0670.3




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
P90 . . FRONT POWER DISTRIBUTION BOX rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0


P95 . .

AUXILIARY FUSE BOX . . . . . . . . . . . . . .

below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0


P97 . . AUXILIARY FUSE BOX . . . . . . . . . . . . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
R11 . . BLOWER RESISTORS . . . . . . . . . . . . . . behind center of dashboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0


R6252
THROTTLE POSITION SENSOR . . . . .
LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0


R6255z

THROTTLE POSITION SENSOR (ASC)

LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0


S2 . . . . IGNITION SWITCH . . . . . . . . . . . . . . . . . . LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0


S3 . . . .

AUTOMATIC TRANSMISSION RANGE
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . .
center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


S4 . . . . HORN SWITCH . . . . . . . . . . . . . . . . . . . . . on steering wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

S5 . . . .

WIPER/WASHER SWITCH . . . . . . . . . . .

LH side of dash RH side of steering column above




S6 . . . . ASC SWITCH . . . . . . . . . . . . . . . . . . . . . . center console
S7 . . . . COMBINATION SWITCH . . . . . . . . . . . . . LH side of dash LH side of steering column above . . . . . . . . . . . . . . . . . . . . 0

S8 . . . .
LIGHT SWITCH . . . . . . . . . . . . . . . . . . . . .
LH side of dash



S13 . . PASSENGER’S DOOR JAMB SWITCH RH front door jamb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
S14 . . DRIVER’S DOOR JAMB SWITCH . . . . . front LH door pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
S17 . . MIRROR CONTROL SWITCH . . . . . . . . in upper LH front door

S18 . .

HAZARD SWITCH . . . . . . . . . . . . . . . . . .

below front of console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


S21w . ENGINE HOOD SWITCH . . . . . . . . . . . . front RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
S28 . . CRUISE CONTROL SWITCH . . . . . . . . . LH side of dash RH side of steering column above . . . . . . . . . . . . . . . . . . . . 0

S29 . .
BRAKE LIGHT SWITCH . . . . . . . . . . . . .
LH footwell on brake pedal support bracket behind LH footwell trim . . . . . .
0

B1
RIGHT FRONT
SPEED SENSOR –
ABS
B2
LEFT FRONT
SPEED SENSOR –
ABS
B16
LEFT FRONT
BRAKE PAD
SENSOR*E26
LEFT FOG LIGHT
E27
RIGHT FOG LIGHT
X768
X769
*
*X143
X713




COMPONENT LOCATION VIEWS










RH SIMILAR *RH SIMILAR *
 



M3
WIPER MOTOR
X333
B18
BRAKE FLUID
LEVEL SWITCH
X20X70X6205




COMPONENT LOCATION VIEWS











 

D100
DATA LINK
CONNECTOR
X69
X111X6002
X6217
B6205
INTAKE AIR
TEMPERATURE
SENSOR
B6217
HOT FILM AIR
MASS METER
M25
CRUISE CONTROL
ACTUATOR
(TEMPOMAT)