ABS BMW 318ti 1998 E36 Electrical Troubleshooting Manual




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INSTRUMENT CLUSTER
INDICATORS
2
5
X4231
S31
PARK BRAKE
SWITCH
1) BRAKE SET
2) BRAKE NOT
SET 2 1
17
.5 BR/GN
X1111
B18
BRAKE FLUID
LEVEL SWITCH
1) LOW LEVEL
2) NORMAL LEVEL P90
FRONT POWER
DISTRIBUTION BOX
310
X203
7 2.5 GN15
F275A

A2w
INSTRUMENT
CLUSTER
10) AIR BAG 23
6
.5 BL
18
.35 BR/VI
X1614
.5 BL/SW
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
31
POWER
DISTRIBUTION
0670.2
7 10
A52
SLIP CONTROL
MODULE
(ABS/ASC) 40X1170
CHARGING
SYSTEM
1230.0
2.5 GN
.5 GN
X1112
X173
GROUND
DISTRIBUTION
0670.4
14 X10017
X16X17
X74
1
X209
2 1
FUSE DETAILS
0670.3
!

.5 GR/SW/GEX1426
.5 BL/SW
 

21 X16
S58
DRIVER’S SEAT
BELT SWITCH 2X778
.5 BL/VI/GE
14
15X13
.5 BL/VI/GE
S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
42
.5 BL/BR
12X17
16X11394A202
ABS CONTROL
MODULE/HY-
DRAULIC UNIT WITH ASC WITH ABSX33
.35 GR/SW/GE
PARK
BRAKE








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6325.0 BRAKE LIGHTS
21
X181
X10018
F4615A
FUSE DETAILS
0670.3
A8
CRUISE CONTROL
MODULE
(TEMPOMAT) X22
15 2P90
FRONT POWER
DISTRIBUTION BOX
32
1
1.5 BL/RT1 BL/RT S29
BRAKE LIGHT
SWITCH
1) NORMAL STATE
2) BRAKE PEDAL
DEPRESSED
GROUND
DISTRIBUTION
0670.4 X318
2
X318
E47
RIGHT LUGGAGE
COMPARTMENT
LIGHT ASSEMBLY X3193
X319
5E46
LEFT LUGGAGE
COMPARTMENT
LIGHT ASSEMBLY
8
1.5 BR H24
LEFT BRAKE LIGHTH31
RIGHT BRAKE
LIGHT
1.5 BR
H34
HIGH LEVEL STOP
LIGHT X413
2 X116
X116
6 X13
1 BL/RT 1.5 BL/RT
.5 BR
X4131
X11268
1 BL/RT
 

.35 BL/RT
A8500
TRANSMISSION
CONTROL MODULE
(EGS) X8500
10
X6912
X13006
.5 BL/RT .75 BL/RT
12X10018
F4615A
FUSE DETAILS
0670.3
2P90
FRONT POWER
DISTRIBUTION BOX
32
1
1.5 BL/RT
X78
S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED
3) BRAKE PEDAL
DEPRESSED
(TEST)
4) BRAKE PEDAL
RELEASED
(NORMAL)
WITH EGS WITHOUT EGS
A202
ABS CONTROL
MODULE/HY-
DRAULIC UNIT X11394
18 .35 BL/RT
A52
SLIP CONTROL
MODULE
(ABS/ASC) X1170
17 .75 BL/RT
WITH ABS WITH ASC
43
4 3 X78
GROUND
DISTRIBUTION
0670.4
X173
.5 BR/GR
11 X69
.5 BR/GR
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
48 X8500
1.5 BL/RT
.75 BL/RT




7000.0 COMPONENT LOCATION CHART
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COMP. DESCRIPTION LOCATION7100.0 8500.0
A2w . . INSTRUMENT CLUSTER . . . . . . . . . . . . LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-3

A8 . . . .

CRUISE CONTROL MODULE
(TEMPOMAT) . . . . . . . . . . . . . . . . . . . . .

behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

01-2





A12 . .



SUPPLEMENTAL RESTRAINT
SYSTEM CONTROL MODULE . . . . .


below rear seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


01-3



A18 . . HIFI AMPLIFIER . . . . . . . . . . . . . . . . . . . . in LH side of luggage compartment behind trim panel . . . . . . . . . . . . . . . . . . 00-2
A35y . BOARD COMPUTER (BC – LOW) . . . . center of dash center console

A36 . .
REAR WIPER/WASHER INTERVAL
CONTROL MODULE . . . . . . . . . . . . . .
in lift gate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

02-1



A51 . .
WIPER/WASHER MODULE . . . . . . . . . .
behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
02-3

A52 . .

SLIP CONTROL MODULE (ABS/ASC) .

behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

01-2




A56 . .

TILT/SLIDE SUNROOF CONTROL
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . .
in roof panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

00-3


A64 . . WIPER/WASHER MODULE (LOW II) . . behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02-3

A104 .
BODY ELECTRONICS CONTROL
MODULE (ZKE IV) . . . . . . . . . . . . . . . .
behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

01-1



A107 .
INTEGRATED HEATING– AND
CLIMATE CONTROL MODULE . . . . .
center of dash center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24-2



A110 .
DIGITAL CLOCK . . . . . . . . . . . . . . . . . . . .
center of dash center console



A113 . SEAT OCCUPANCY DETECTOR . . . . . under RH front seat


A202 .

ABS CONTROL MODULE/HYDRAULIC
UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment back of LH side shock tower




A835 . TRANSMITTER MODULE (EWS II) . . . . LH side of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02-2




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
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COMP.8500.0 7100.0LOCATION DESCRIPTION
K48 . . LOW BEAM LIGHT RELAY . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 12-2

K125 .

ABS PUMP MOTOR RELAY, TIMED . . .

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

12-1


K6300 ENGINE CONTROL MODULE RELAY . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 12-3
K6301w FUEL PUMP RELAY . . . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 12-3

K6304
SECONDARY AIR PUMP RELAY . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . .
12-3

K6326

UNLOADER RELAY, TERMINAL 15 . . .

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

27-1


M2 . . . FUEL PUMP . . . . . . . . . . . . . . . . . . . . . . . . below RH side of rear seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2
M3 . . . WIPER MOTOR . . . . . . . . . . . . . . . . . . . . rear of engine compartment below center of cowl . . . . . . . . . . . . . . . . . . . . . 09-1

M4 . . .
WASHER PUMP . . . . . . . . . . . . . . . . . . . .
front RH side of engine compartment on washer fluid reservoir . . . . . . . . . .
07-3



M7 . . .

HEADLIGHT/FOG LIGHT WASHER
PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . .
front RH side of engine compartment on washer fluid reservoir . . . . . . . . . .

14-3


M9 . . . AUXILIARY FAN MOTOR . . . . . . . . . . . . behind front grille behind trim panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
M12 . . DRIVER’S DOOR LOCK MOTOR . . . . . in lower LH front door behind trim panel

M13 . .
PASSENGER’S DOOR LOCK MOTOR
in lower RH side of front door behind trim panel



M16 . . GAS FILLER LOCK MOTOR . . . . . . . . . in RH rear side of luggage compartment behind trim panel . . . . . . . . . . . . . 29-1


M17 . .

LUGGAGE COMPARTMENT LOCK
MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . .
rear side of luggage compartment behind trim panel . . . . . . . . . . . . . . . . . . .

23-1


M21 . . DRIVER’S WINDOW MOTOR . . . . . . . . LH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-1
M23 . . PASSENGER’S WINDOW MOTOR . . . . RH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-2

M24z .

FOLDING SUNROOF MOTOR . . . . . . . .

in roof panel






M25 . .

CRUISE CONTROL ACTUATOR
(TEMPOMAT) . . . . . . . . . . . . . . . . . . . . .
front LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

09-3




COMPONENT LOCATION CHART
:





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COMP.8500.0 7100.0LOCATION DESCRIPTION
X18723 GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 04-3

X18994

(3 PINS, YELLOW) . . . . . . . . . . . . . . . . . .

LH footwell underside of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23-3

01-3
X19527 (16 PINS, BLACK) . . . . . . . . . . . . . . . . . . center console right . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-3 05-4
X62001 (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . under center of car . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-1 06-1

X62002
(4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .
under center of car . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26-3
06-1
X90260

(3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .

RH side of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

02-2


X91009 (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . in passenger’s seat area
Y1 . . . . ABS HYDRAULIC UNIT . . . . . . . . . . . . . . rear LH side of engine compartment back of LH side shock tower . . . . . . . 11-3

Y2 . . . .
AIR CONDITIONING COMPRESSOR .
front RH side of engine compartment



Y4z . . . WATER VALVE . . . . . . . . . . . . . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-3
Y5 . . . . DRIVER’S SIDE MIRROR . . . . . . . . . . . . in upper LH front door
Y6 . . . . PASSENGER’S SIDE MIRROR . . . . . . . in upper RH front door

Y19 . .

SHIFT–LOCK . . . . . . . . . . . . . . . . . . . . . . .

center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19-3


Y199 . CARBON CANISTER VALVE . . . . . . . . . behind side panel, right from RH rear seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-3
Y6101 CYL. 1 FUEL INJECTION VALVE . . . . . on cylinder head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08-2

Y6102
CYL. 2 FUEL INJECTION VALVE . . . . .
on cylinder head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
08-2

Y6103 CYL. 3 FUEL INJECTION VALVE . . . . . on cylinder head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08-2
Y6104 CYL. 4 FUEL INJECTION VALVE . . . . . on cylinder head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08-2
Y6120 EVAPORATIVE EMISSION VALVE . . . . LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2

Y6130

IDLE SPEED CONTROL VALVE . . . . . .

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

10-2

X13252X13253X13254
A8
CRUISE CONTROL
MODULE
(TEMPOMAT)X22
A52
SLIP CONTROL
MODULE
(ABS/ASC)
A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II)
X74
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
X1441
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)




COMPONENT LOCATION VIEWS
ELECTRICAL CONTROL MODULE LOCATIONS





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X1659



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




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RH SIMILAR *RH SIMILAR *
 



M9
AUXILIARY FAN
MOTOR
X1890
Y1
ABS HYDRAULIC
UNIT
X85
X1176
Y4z
WATER VALVE




COMPONENT LOCATION VIEWS




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X6131
Y6131
INTAKE AIR RES-
ONANCE CHANGE-
OVER VALVE




K6300
ENGINE CONTROL
MODULE RELAY
K6301w
FUEL PUMP RELAY K2
HORN RELAY
K4
BLOWER RELAYK47
FRONT FOG LIGHT
RELAY
K16
HAZARD FLASHER
RELAYK48
LOW BEAM LIGHT
RELAYK21
NORMAL SPEED
RELAY K13
REAR DEFOGGER
RELAYK22
HIGH SPEED
RELAY
K19
COMPRESSOR
CONTROL RELAYK125
ABS PUMP MOTOR
RELAY, TIMED

COMPONENT LOCATION VIEWS/




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K6304
SECONDARY AIR
PUMP RELAY