1999 BMW 318ti light

6581.3 BOARD COMPUTER (BC – LOW)





B21
ON–BOARD
COMPUTER
TEMPERATURE
SENSOR
31 30
31 31 31
.35 BR/GR
P90
FRONT POWER
DISTRIBUTION BOX
232 X10018
FUSE DETAILS
0670.3
510
911
LIGHT SWITCH
DETAILS
6300.0
X10245
86 X10245
X10010
1 X770
2 X770
GROUND
DISTRIBUTION
0670.4
X10010GROUND
DISTRIBUTION
0670.4
58g
FUSE DETAILS
0670.3
 

.35 WS/VI2.35 WS/GE3
B25y
FUEL TANK
SENSOR II .5 BR/GE7
2 X679
1 X679
15
.5 SW/WS2
X188
INSTRUMENT
CLUSTER
6211.0
X11291
1 X13
B6
FUEL LEVEL
SENSOR 2 X1241
1 X1241
.5 GE15
31
3 X271
.5 BR/SW
.5 BR/GE
1 X271
15
.35 BR/RT1
10 X32
1 X32
X173
GROUND
DISTRIBUTION
0670.4
A2w
INSTRUMENT
CLUSTER
2) VEHICLE
SPEED
OUTPUT 2
X17
.35 SW/WS
.35 GR/RT
A35y
BOARD
COMPUTER
(BC – LOW)
S7
COMBINATION
SWITCH
10) PROGRAM MO-
DUS 10TXD RXD
DATA LINK
0670.5.5 BR/GE
.5 BR/GE
A2w
INSTRUMENT
CLUSTER
.5 BR/SW.5 BR/SW
X805
INSTRUMENT
CLUSTER
6211.0
31415
.5 WS/SWA6000
ENGINE CONTROL
MODULE (DME)
X6000
24X20
.35 WS/SW
31
F315AF4615A
83
.35 BR/RT
.35 BR




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

B79 . .
PASSENGER’S SIDE IMPACT
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . .
RH B–pillar





B6203
CRANKSHAFT POSITION/RPM
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . .
under RH front of car rear of radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0



B6205
INTAKE AIR TEMPERATURE SENSOR
LH side of engine near oil level stick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

B6209 HALL EFFECT CAMSHAFT SENSOR . front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

B6217 HOT FILM AIR MASS METER . . . . . . . . top front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
B6231 OIL PRESSURE SWITCH . . . . . . . . . . . . LH front of engine below intake manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

B6232

ENGINE COOLANT TEMPERATURE
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . .

behind RH fresh air cowl below intake manifold . . . . . . . . . . . . . . . . . . . . . . .


0



B6240

KNOCK SENSOR . . . . . . . . . . . . . . . . . . .

top front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0


B9508 PRESSURE SWITCH . . . . . . . . . . . . . . . . near RH headlight assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0


B62001

OXYGEN SENSOR (IN FRONT OF
CATALYTIC CONVERTER) . . . . . . . . .
under center of car . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0



B62002
OXYGEN SENSOR (BEHIND
CATALYTIC CONVERTER) . . . . . . . . .
under center of car . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0



C101 .
CONTACT RING . . . . . . . . . . . . . . . . . . . .
top of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

D100 . DATA LINK CONNECTOR . . . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

D110 . OBD II CONNECTOR . . . . . . . . . . . . . . . . center console right . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
E7 . . . . LEFT HEADLIGHT . . . . . . . . . . . . . . . . . . front LH side of engine compartment

E8 . . . .
RIGHT HEADLIGHT . . . . . . . . . . . . . . . . .
front RH side of engine compartment



E9 . . . . REAR DEFOGGER I . . . . . . . . . . . . . . . . on lift gate




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION
E11 . . . LEFT HIGH BEAM LIGHT . . . . . . . . . . . . near LH headlight assembly

E12 . .

RIGHT HIGH BEAM LIGHT . . . . . . . . . .

near RH headlight assembly




E13 . . LEFT LOW BEAM LIGHT . . . . . . . . . . . . near LH headlight assembly
E14 . . RIGHT LOW BEAM LIGHT . . . . . . . . . . . near RH headlight assembly

E15 . .
LEFT PARK LIGHT . . . . . . . . . . . . . . . . . .
front of vehicle



E19 . .

RIGHT PARK LIGHT . . . . . . . . . . . . . . . .

front of vehicle




E26 . . LEFT FOG LIGHT . . . . . . . . . . . . . . . . . . . under LH front bumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

E27 . . RIGHT FOG LIGHT . . . . . . . . . . . . . . . . . under RH front bumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0


E28 . .
FRONT CIGAR LIGHTER . . . . . . . . . . . .
center console



E29 . . FRONT CIGAR LIGHTER LIGHT . . . . . center console
E32z . REAR CENTER INTERIOR LIGHT . . . . in roof panel

E34 . .
FRONT DOME LIGHT/MAP READING
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . .
in roof panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0



E35 . .
DRIVER’S MAKE–UP MIRROR LIGHT
in sun visor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0



E36 . .

PASSENGER’S MAKE–UP MIRROR
LIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . .
in sun visor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

E42 . . GLOVE BOX LIGHT . . . . . . . . . . . . . . . . . RH side of glove box
E43 . . LEFT LICENSE PLATE LIGHT . . . . . . . . underside of luggage compartment lid, near license plate . . . . . . . . . . . . . . 0
E44 . . RIGHT LICENSE PLATE LIGHT . . . . . . underside of luggage compartment lid, near license plate . . . . . . . . . . . . . . 0



E46 . .



LEFT LUGGAGE COMPARTMENT
LIGHT ASSEMBLY . . . . . . . . . . . . . . . .


in LH rear side of luggage compartment




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION

E47 . .
RIGHT LUGGAGE COMPARTMENT
LIGHT ASSEMBLY . . . . . . . . . . . . . . . .
in RH rear side of luggage compartment




E51 . . LEFT WASHER JET HEATER . . . . . . . . on underside of engine hood

E52 . .

RIGHT WASHER JET HEATER . . . . . . .

on underside of engine hood




E56 . . DRIVER’S SEATBACK HEATER . . . . . . in upper LH front seatback
E57 . . DRIVER’S SEAT HEATER . . . . . . . . . . . under LH front seat

E58 . .
PASSENGER’S SEAT HEATER . . . . . . .
underside of RH front seat



E59 . . PASSENGER’S SEATBACK HEATER . in upper RH front seatback
E61 . . LEFT FRONT FOOTWELL LIGHT . . . . . LH footwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
E62 . . RIGHT FRONT FOOTWELL LIGHT . . . right footwell



E82 . .



TRANSMISSION POSITION INDICA-
TOR LIGHT . . . . . . . . . . . . . . . . . . . . . .


center console






E97 . . LIGHT SWITCH ILLUMINATION . . . . . . LH side of dash
E98 . . FOG LIGHT SWITCH ILLUMINATION . on instrument cluster

E103 .
CLIMATE CONTROL SWITCH
ILLUMINATION . . . . . . . . . . . . . . . . . . .
center console




F97 . . . FUSIBLE LINK . . . . . . . . . . . . . . . . . . . . . . rear of engine compartment

G1 . . .

BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . .

rear RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


G5 . . . DRIVER’S AIR BAG GAS GENERATOR behind steering wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0


G6 . . .

PASSENGER’S AIR BAG GAS
GENERATOR . . . . . . . . . . . . . . . . . . . . .
behind glove box above . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION

G12 . .
DRIVER’S SIDE PYROTECHNICAL
BELT TENSIONER . . . . . . . . . . . . . . . .
driver’s seat right







G13 . .


PASSENGER’S SIDE
PYROTECHNICAL BELT
TENSIONER . . . . . . . . . . . . . . . . . . . . .

passenger’s seat left







G14 . .
LEFT SIDE AIR BAG GAS
GENERATOR . . . . . . . . . . . . . . . . . . . . .
in driver’s door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0



G15 . .
RIGHT SIDE AIR BAG GAS
GENERATOR . . . . . . . . . . . . . . . . . . . . .
in passenger’s door





G6509
GENERATOR . . . . . . . . . . . . . . . . . . . . . .
front LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

H1w . . ANTI–THEFT HORN (ALPINE) . . . . . . . in RH front bumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
H2 . . . LEFT HORN . . . . . . . . . . . . . . . . . . . . . . . . front of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
H3 . . . RIGHT HORN . . . . . . . . . . . . . . . . . . . . . . front of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

H4 . . .

RIGHT FRONT TURN LIGHT . . . . . . . . .

RH front of vehicle




H5 . . . RIGHT REAR TURN LIGHT . . . . . . . . . . RH side of body rear end
H6 . . . LEFT REAR TURN LIGHT . . . . . . . . . . . LH side of body rear end

H7 . . .
LEFT FRONT TURN LIGHT . . . . . . . . . .
LH front of vehicle





H8 . . .

RIGHT FRONT AUXILIARY TURN
LIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . .
RH front of vehicle



H9 . . . LEFT FRONT AUXILIARY TURN LIGHT LH front of vehicle
H10 . . CHIME MODULE . . . . . . . . . . . . . . . . . . . above LH footwell dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
H24 . . LEFT BRAKE LIGHT . . . . . . . . . . . . . . . . LEFT LUGGAGE COMPARTMENT LIGHT ASSEMBLY

H25 . .

LEFT TAIL LIGHT . . . . . . . . . . . . . . . . . . .

LEFT LUGGAGE COMPARTMENT LIGHT ASSEMBLY




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION
H27 . . LEFT BACK UP LIGHT . . . . . . . . . . . . . . LEFT LUGGAGE COMPARTMENT LIGHT ASSEMBLY

H28 . .

RIGHT BACK UP LIGHT . . . . . . . . . . . . .

RIGHT LUGGAGE COMPARTMENT LIGHT ASSEMBLY




H30 . . RIGHT TAIL LIGHT . . . . . . . . . . . . . . . . . . RIGHT LUGGAGE COMPARTMENT LIGHT ASSEMBLY
H31 . . RIGHT BRAKE LIGHT . . . . . . . . . . . . . . . RIGHT LUGGAGE COMPARTMENT LIGHT ASSEMBLY

H34 . .
HIGH LEVEL STOP LIGHT . . . . . . . . . . .
at back of rear window shelf



H37 . .

LEFT TAIL LIGHT . . . . . . . . . . . . . . . . . . .

LEFT LUGGAGE COMPARTMENT LIGHT ASSEMBLY




H39 . . RIGHT TAIL LIGHT . . . . . . . . . . . . . . . . . . RIGHT LUGGAGE COMPARTMENT LIGHT ASSEMBLY
H42 . . LEFT MID–HIGH RANGE SPEAKER . . in upper LH front door

H43 . .
RIGHT MID–HIGH RANGE SPEAKER .
in upper RH front door



H45 . . RIGHT REAR SPEAKER . . . . . . . . . . . . . in RH side of luggage compartment
H46 . . LEFT REAR SPEAKER . . . . . . . . . . . . . . in LH side of luggage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0


H50 . .
RIGHT FRONT HIGH RANGE
SPEAKER . . . . . . . . . . . . . . . . . . . . . . . .
in upper RH front door





H51 . .
RIGHT FRONT LOW RANGE
SPEAKER . . . . . . . . . . . . . . . . . . . . . . . .
in lower RH A–pillar





H52 . .
RIGHT REAR LOW RANGE SPEAKER
under rear window shelf



H53 . . RIGHT REAR HIGH RANGE SPEAKER under rear window shelf
H54 . . RIGHT FRONT MIDRANGE SPEAKER in upper RH front door
H55 . . LEFT FRONT MIDRANGE SPEAKER . in upper LH front door

H56 . .

LEFT REAR HIGH RANGE SPEAKER .

under rear window shelf




H57 . . LEFT REAR LOW RANGE SPEAKER . under rear window shelf




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION
H58 . . LEFT FRONT LOW RANGE SPEAKER in lower LH A–pillar

H59 . .

LEFT FRONT HIGH RANGE SPEAKER

in upper LH front door




H66 . . SUBWOOFER . . . . . . . . . . . . . . . . . . . . . . at back of rear window shelf


H91 . .

RIGHT LUGGAGE COMPARTMENT
LIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . .
right rear light assembly




I1008 . SEAT MAT . . . . . . . . . . . . . . . . . . . . . . . . . passenger’s seat

K2 . . . .
HORN RELAY . . . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . .

0


K4 . . . . BLOWER RELAY . . . . . . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 
0

K9 . . . . UNLOADER RELAY, TERMINAL 15 . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
K13 . . REAR DEFOGGER RELAY . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 
0

K16 . .

HAZARD FLASHER RELAY . . . . . . . . . .

rear LH side of engine compartment in Power Distribution Box . . . . . . . . . .


0


K19 . . COMPRESSOR CONTROL RELAY . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 
0
K21 . . NORMAL SPEED RELAY . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 
0

K22 . .
HIGH SPEED RELAY . . . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . .

0



K45 . .

FOLDING SUNROOF COMFORT
RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . .
below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

K46 . . HIGH BEAM LIGHT RELAY . . . . . . . . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
K46z . DAY LIGHT RELAY MODULE . . . . . . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
K47 . . FRONT FOG LIGHT RELAY . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 
0


K48 . .

LOW BEAM LIGHT RELAY . . . . . . . . . . .

rear LH side of engine compartment in Power Distribution Box . . . . . . . . . .


0


K125 . ABS PUMP MOTOR RELAY, TIMED . . . Power Distribution Box rear LH side of engine compartment . . . . . . . . . . . . 
0