fuel sensor BMW 318ti 1998 E36 Electrical Troubleshooting Manual




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Pin Assignments


 

E = Input, A = Output, M = Ground
X17
Pin Type Description/Function Connection
1
ETrailer turn signal indicator controlHazard flasher relay
2AVehicle speed signalVarious control modules
3MGround supply, terminal 31 for indicator and
warning lampsGround point
4EVoltage supply, terminal 15 for instrument
cluster electronicsFront power distribution box, fuse 23
5EVoltage supply, terminal 15 for battery
charge indicatorIgnition switch, terminal 15
6EGround supply, terminal 61 for battery
charge indicatorGenerator
7Not used
8EFog light indicator controlFront power distribution box, fuse 15
9ASound tone signalChime module
10Not used
11Not used
12EASC signalASC control module
13ATI-measurement signal (fuel consumption)Engine control module (DME)
14ESeat belt warning lamp controlDriver’s seat belt switch
15ES/A reset/service interval indicator resetData link connector
16EVoltage supply, terminal RFront power distibution box, fuse 46
17ACoolant temperature sensor (–)Coolant temperature sensor
18ECoolant temperature sensor (+)Coolant temperature sensor
19EOil pressure warning lamp controlOil pressure switch
20Not used
21EABS warning lamp (ABS)ABS control module/hydraulic unit/Slip
control module (ABS/ASC)
22EIgnition key warning/Audible ignition key
warningIgnition switch
23EDriver’s door openDriver’s door jamb switch
24Not used




 !
Pin Assignments


 

E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
25
Not used
26Not used
X271
Pin Type Description/Function Connection
1
AFuel level sensorFuel tank sensors
2Not used
3AGround supply for fuel tank sensors and
vehicle speed sensorFuel tank sensors and vehicle speed
sensor
4EPosition signal TWVehicle speed sensor
5Not used
6Not used
7Not used
8Not used
9Not used
10Not used
11Not used
12Not used




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INDICATORS
INSTRUMENT CLUSTER
.5 SW/WS
F235A
P90
FRONT POWER
DISTRIBUTION BOX F46
15A
F315A

A2w
INSTRUMENT
CLUSTER
1) FUEL
CONSUMPTION
2) VEHICLE SPEED
OUTPUT
11) FUEL GAUGE
14) SPEEDOMETER
31
31 4
16X1622
30
31
X173X2714
B10
VEHICLE SPEED
SENSOR
6211.0-03
X383
2
X3831
X172
31 312
14 1
FUSE DETAILS
0670.3FUSE DETAILS
0670.3
GROUND
DISTRIBUTION
0670.4OUTPUT–SIGNAL
SPEEDOMETER
X6792
X12412
13
B25y
FUEL TANK
SENSOR II
B6
FUEL LEVEL
SENSOR
X10018232X100176
X17
X6791 .5 BR/GE
.5 GE
.5 BR/SWX1241
1.5 BR/SW .5 BR/RT
.5 BR/SW
X805
X173
11
01/2
1/1FUSE DETAILS
0670.3
 

.5 BR/GE
X11291
ON–BOARD
COMPUTER
(BC IV)
6581.0.5 BR/GE
23
X1413
.5 BR/GR/GE
X443
N12w
ANTI–THEFT
CONTROL
MODULE
(ALPINE)
X130254
A104
BODY
ELECTRONICS
CONTROL
MODULE
(ZKE IV)X132542 12
X3522
GROUND
DISTRIBUTION
0670.4
X13006
X3521S14
DRIVER’S DOOR
JAMB SWITCH
1) DOOR OPEN
2) DOOR CLOSED
.5 BR/GR/GE
.5 BR/GR/GE .5 BR/GR/GE .5 BR/GR/GE

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
MODUS 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
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COMP.8500.0 7100.0LOCATION DESCRIPTION

A836 .
ELECTRONIC IMMOBILIZER
CONTROL MODULE (EWS II) . . . . . .
under glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

01-2


A6000 ENGINE CONTROL MODULE (DME) . . rear RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00-1



A8500



TRANSMISSION CONTROL MODULE
(EGS) . . . . . . . . . . . . . . . . . . . . . . . . . . .


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


00-1





B1 . . . .

RIGHT FRONT SPEED SENSOR –
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
on RH front wheel, above brake caliper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

06-3


B2 . . . . LEFT FRONT SPEED SENSOR – ABS on LH front wheel, above brake caliper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 06-3
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13-1


B8y . . . PRESSURE SWITCH . . . . . . . . . . . . . . . . near RH headlight assembly
B9 . . . . INTERMEDIATE PRESSURE SWITCH near RH headlight assembly

B10 . .
VEHICLE SPEED SENSOR . . . . . . . . . .
on differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26-1



B14 . .

EVAPORATOR TEMPERATURE
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . .
RH side of LH footwell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17-1


B16 . . LEFT FRONT BRAKE PAD SENSOR . . on LH front wheel, above brake caliper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 06-3
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 . . . . . . . . .
09-2



B21 . .

ON–BOARD COMPUTER
TEMPERATURE SENSOR . . . . . . . . .
in the engine compartment lower LH side of engine compartment . . . . . . .
14-1

B25y . FUEL TANK SENSOR II . . . . . . . . . . . . . below RH side of rear seat




COMPONENT LOCATION CHART
:





 !
 

COMP.8500.0 7100.0LOCATION DESCRIPTION
B72 . . FUEL TANK PRESSURE SENSOR . . . RH rear wheel well, behind trim panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-1

B78 . .

DRIVER’S SIDE IMPACT SENSOR . . .

LH B–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

29-3




B79 . .

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






B6203

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

08-1


B6205 INTAKE AIR TEMPERATURE SENSOR LH side of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 09-3
B6209 HALL EFFECT CAMSHAFT SENSOR . front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

B6217

HOT FILM AIR MASS METER . . . . . . . .

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

09-3


B6231 OIL PRESSURE SWITCH . . . . . . . . . . . . LH front of engine below intake manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1


B6232

ENGINE COOLANT TEMPERATURE
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . .
behind RH fresh air cowl below intake manifold . . . . . . . . . . . . . . . . . . . . . . .

28-1


B6240 KNOCK SENSOR . . . . . . . . . . . . . . . . . . . top front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-2

B9508
PRESSURE SWITCH . . . . . . . . . . . . . . . .
near RH headlight assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
08-3



B62001

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

25-1




B62002

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

26-3


C101 . CONTACT RING . . . . . . . . . . . . . . . . . . . . top of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1
D100 . DATA LINK CONNECTOR . . . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 09-2

D110 .
OBD II CONNECTOR . . . . . . . . . . . . . . . .
center console right . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24-3

E7 . . . . LEFT HEADLIGHT . . . . . . . . . . . . . . . . . . front LH side of engine compartment

Y6120
EVAPORATIVE
EMISSION VALVEX6120X6133X6163
B6
FUEL LEVEL
SENSOR
X1241
X10070X10071
H2
LEFT HORN
H3 *
RIGHT HORN




COMPONENT LOCATION VIEWS




!



 


* RH SIMILAR

Y6133
AIR PUMP
Y6163
SECONDARY AIR
PUMP VALVE


M2
FUEL PUMP
X638
X679
B21
ON–BOARD
COMPUTER
TEMPERATURE
SENSOR
X770
M7
HEADLIGHT/FOG
LIGHT WASHER
PUMP
S21w
ENGINE HOOD
SWITCH
X123
X371




COMPONENT LOCATION VIEWS




!





 







COMPONENT LOCATION VIEWS




!

 

X6263
Y199
CARBON
CANISTER VALVE
X352
X13170
Y6263
FUEL CHANGE-
OVER VALVEB6232
ENGINE COOLANT
TEMPERATURE
SENSOR





B72
FUEL TANK
PRESSURE
SENSOR
X312




COMPONENT LOCATION VIEWS




!

 


M16
GAS FILLER LOCK
MOTOR

X13171


S198
JET HEATER
THERMOSWITCH
X1148
X494
GROUND
X498
GROUND B78
DRIVER’S SIDE
IMPACT SENSOR
X1885