fuel BMW M3 1999 E36 Electrical Troubleshooting Manual




COMPONENT LOCATION CHART







COMP.8500.0 7100.0LOCATION DESCRIPTION


A836 .

ELECTRONIC IMMOBILIZER CONTROL
MODULE (EWS II) . . . . . . . . . . . . . . . . . . . .
RH side of dash behind glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

38-3


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

A7000
TRANSMISSION CONTROL MODULE
(EGS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08-3

B2 . . . .

LEFT FRONT SPEED SENSOR – ABS . . . .

on LH front wheel, above brake caliper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

08-3


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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-2

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



B9 . . . . INTERMEDIATE PRESSURE SWITCH . . . . near RH headlight assembly
B10 . . VEHICLE SPEED SENSOR . . . . . . . . . . . . . . under rear of car on differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 08-1


B11 . . .

LH HEAT EXCHANGER TEMPERATURE
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .
center console






B12 . .

RH HEAT EXCHANGER TEMPERATURE
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .
center console




B13 . . OUTSIDE TEMPERATURE SENSOR . . . . . . rear of engine compartment behind RH fresh air cowl . . . . . . . . . . . . . . . . . . . . . . . . . 15-2
B14 . . EVAPORATOR TEMPERATURE SENSOR . RH side of LH footwell LH side of IHKA Plenum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-1

B16 . .
LEFT FRONT BRAKE PAD SENSOR . . . . . .
on LH front wheel, above brake caliper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
08-3

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 . . . . . . . . . . . . . . . . . 18-3




COMPONENT LOCATION CHART







COMP.8500.0 7100.0LOCATION DESCRIPTION


B21 . .

ON–BOARD COMPUTER TEMPERATURE
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .
front RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20-1


B25y . FUEL TANK SENSOR II . . . . . . . . . . . . . . . . . top of fuel tank

B72 . .
FUEL TANK PRESSURE SENSOR . . . . . . . .
RH rear wheel well behind trim panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14-1

B78 . .

DRIVER’S SIDE IMPACT SENSOR . . . . . . .

in lower LH B–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

39-2


B79 . . PASSENGER’S SIDE IMPACT SENSOR . . . in lower RH B–pillar
B6203 CRANKSHAFT POSITION/RPM SENSOR . front of engine below . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3

B6204
CAMSHAFT POSITION SENSOR
(CYLINDER IDENTIFICATION) . . . . . . . . .
front of engine below intake manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-2



B6204
CAMSHAFT POSITION SENSOR
(CYLINDER IDENTIFICATION) . . . . . . . . .
front of engine below intake manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11-1


B6205 INTAKE AIR TEMPERATURE SENSOR . . . front LH side of engine compartment (318i) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-2

B6205
INTAKE AIR TEMPERATURE SENSOR . . .
LH side of engine near oil level stick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36-3

B6207 HOT FILM AIR MASS METER . . . . . . . . . . . . LH side of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
B6209 HALL EFFECT CAMSHAFT SENSOR . . . . . front of engine (318i)
B6217 HOT FILM AIR MASS METER . . . . . . . . . . . . top front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-2
B6231 OIL PRESSURE SWITCH . . . . . . . . . . . . . . . . front of engine below intake manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

B6231
OIL PRESSURE SWITCH . . . . . . . . . . . . . . . .
front of engine below intake manifold (318i) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17-1



B6232

ENGINE COOLANT TEMPERATURE
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .
front of engine below intake manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-3



B6232

ENGINE COOLANT TEMPERATURE
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .
front of engine below intake manifold (318i) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17-2



B6236

ENGINE COOLANT TEMPERATURE
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .
front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-3




COMPONENT LOCATION CHART







COMP.8500.0 7100.0LOCATION DESCRIPTION
K128 . SPATIAL SOUND RELAY . . . . . . . . . . . . . . . . footwell, driver’s side behind trim panel

K450 .
PARK VENTILATION RELAY . . . . . . . . . . . . .
below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
02-2

K6300 ENGINE CONTROL MODULE RELAY . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 19-3
K6301 CYL. 1–6 FUEL PUMP RELAY . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 19-3
K6301w FUEL PUMP RELAY . . . . . . . . . . . . . . . . . . . . . rear LH side of engine compartment in Front Power Distribution Box . . . . . . . . . . . . 19-1
K6304 SECONDARY AIR PUMP RELAY . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . . . . . . . . . 19-3

K6326
UNLOADER RELAY, TERMINAL 15 . . . . . . .
rear RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
39-1

M2 . . . FUEL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . below RH side of rear seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-2
M3 . . . WIPER MOTOR . . . . . . . . . . . . . . . . . . . . . . . . rear of engine compartment below center of cowl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1
M4 . . . WASHER PUMP . . . . . . . . . . . . . . . . . . . . . . . . front RH side of engine compartment on washer fluid reservoir . . . . . . . . . . . . . . . . . 10-1
M7 . . . HEADLIGHT/FOG LIGHT WASHER PUMP . front RH side of engine compartment on washer fluid reservoir . . . . . . . . . . . . . . . . . 10-2

M9 . . .

AUXILIARY FAN MOTOR . . . . . . . . . . . . . . . .

behind front grille behind trim panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18-1


M12 . . DRIVER’S DOOR LOCK MOTOR . . . . . . . . . in upper LH front door behind trim panel
M13 . . PASSENGER’S DOOR LOCK MOTOR . . . . in upper RH front door behind trim panel
M16 . . GAS FILLER LOCK MOTOR . . . . . . . . . . . . . in RH rear side of luggage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 03-3

M17 . .
LUGGAGE COMPARTMENT LOCK
MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
rear side of luggage compartment in lift gate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

34-2



M21 . .
DRIVER’S WINDOW MOTOR . . . . . . . . . . . .
LH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31-3

M23 . . PASSENGER’S WINDOW MOTOR . . . . . . . . RH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-1


M25 . .

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

18-2


M30 . . BLOWER MOTOR . . . . . . . . . . . . . . . . . . . . . . rear of engine compartment behind RH fresh air cowl . . . . . . . . . . . . . . . . . . . . . . . . . 15-2




COMPONENT LOCATION CHART







COMP.8500.0 7100.0LOCATION DESCRIPTION
X19561 (6 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . on RH side of transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05-3

X19564
(2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . .
in RH side of luggage compartment behind trim panel



X62001 (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . under center of car (318i) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-1 07-2
X62002 (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . under center of car (318i) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-2 07-2
X62101 (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . top center of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-3 07-2
X62102 (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . under center of car on catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 07-2
X62201
(4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . .
top center of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15-3
07-2
X62202 (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . under center of car on catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 07-2
X90260 (3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . RH side of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 04-3 01-1
X91009 (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . . . . . under passenger’s seat
Y1 . . . . ABS HYDRAULIC UNIT . . . . . . . . . . . . . . . . . . rear LH side of engine compartment back of LH side shock tower . . . . . . . . . . . . . . . 16-2

Y1w . .

ABS HYDRAULIC UNIT . . . . . . . . . . . . . . . . . .

LH side of engine compartment




Y2 . . . . AIR CONDITIONING COMPRESSOR . . . . . front of engine
Y4 . . . . WATER VALVE ASSEMBLY . . . . . . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-2
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 RH side of gearshift selector
Y85 . . LH ROLLOVER PROTECTION ACTUATOR behind rear seats (Convertible) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02-3
Y86 . . RH ROLLOVER PROTECTION ACTUATOR behind rear seats (Convertible) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02-3
Y198 . EXHAUST GAS FLAP VALVE . . . . . . . . . . . . in LH rear side of luggage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2

Y199 .

CARBON CANISTER VALVE . . . . . . . . . . . . .

in spare–wheel well . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14-3


Y6101 CYL. 1 FUEL INJECTION VALVE . . . . . . . . . RH front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3




COMPONENT LOCATION CHART







COMP.8500.0 7100.0LOCATION DESCRIPTION
Y6102 CYL. 2 FUEL INJECTION VALVE . . . . . . . . . top center of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3

Y6103
CYL. 3 FUEL INJECTION VALVE . . . . . . . . .
top center of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12-3

Y6104 CYL. 4 FUEL INJECTION VALVE . . . . . . . . . top center of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3
Y6105 CYL. 5 FUEL INJECTION VALVE . . . . . . . . . top center of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3
Y6106 CYL. 6 FUEL INJECTION VALVE . . . . . . . . . top center of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-3
Y6120 EVAPORATIVE EMISSION VALVE . . . . . . . . front LH side of engine compartment right of LH side shock tower . . . . . . . . . . . . . . . 15-1

Y6120
EVAPORATIVE EMISSION VALVE . . . . . . . .
LH side of engine compartment right of LH side shock tower . . . . . . . . . . . . . . . . . . .
20-3

Y6130 IDLE SPEED CONTROL VALVE . . . . . . . . . . front of engine below intake manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-3
Y6130 IDLE SPEED CONTROL VALVE . . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2


Y6131

INTAKE AIR RESONANCE CHANGEOVER
VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

36-2


Y6133 AIR PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . front of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05-1
Y6163 SECONDARY AIR PUMP VALVE . . . . . . . . . RH side of engine

Y6263

FUEL CHANGEOVER VALVE . . . . . . . . . . . .

under LH center of car






Y6275

VARIABLE CAMSHAFT CONTROL VALVE
1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
top center of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12-2


Y6550 SOLENOID VALVE (”RUNNING LOSSES”). under LH center of car
Y8505 TRANSMISSION VALVE UNIT . . . . . . . . . . . . on LH side of transmission
Y8505y TRANSMISSION VALVE UNIT . . . . . . . . . . . . on LH side of transmission




COMPONENT LOCATION VIEWS







B6207
HOT FILM AIR
MASS METER
Y6101
CYL. 1 FUEL
INJECTION VALVE B6204
CAMSHAFT
POSITION SENSOR
(CYLINDER
IDENTIFICATION)
X6275
Y6102
CYL. 2 FUEL
INJECTION VALVE
Y6103
CYL. 3 FUEL
INJECTION VALVEY6104
CYL. 4 FUEL
INJECTION VALVE
Y6105
CYL. 5 FUEL
INJECTION VALVE
Y6106
CYL. 6 FUEL
INJECTION VALVE X6207
X6252X10094





Y6275
VARIABLE CAM-
SHAFT CONTROL
VALVE 1X10239




COMPONENT LOCATION VIEWS






Y199
CARBON
CANISTER VALVE Y198
EXHAUST GAS
FLAP VALVE
X13170
X13171
B72
FUEL TANK
PRESSURE
SENSOR
X13172




K21
NORMAL SPEED
RELAY




COMPONENT LOCATION VIEWS






K2
HORN RELAY
K4
BLOWER RELAY
K16
HAZARD FLASHER
RELAYK47
FRONT FOG LIGHT
RELAY
K48
LOW BEAM LIGHT
RELAYK22
HIGH SPEED
RELAY
K125
ABS PUMP MOTOR
RELAY, TIMEDK6300
ENGINE CONTROL
MODULE RELAY
K6301
CYL. 1–6 FUEL
PUMP RELAY K10
ABS RELAY
K13
REAR DEFOGGER
RELAY
K19
COMPRESSOR
CONTROL RELAYK6301w
FUEL PUMP RELAY


K6304
SECONDARY AIR
PUMP RELAY






COMPONENT LOCATION VIEWS







M2
FUEL PUMP
X6120
X638X679
318iY6120
EVAPORATIVE
EMISSION VALVE

B21
ON–BOARD
COMPUTER
TEMPERATURE
SENSOR
X770






COMPONENT LOCATION VIEWS







B6
FUEL LEVEL
SENSOR
X13142X1241

M105
REAR WINDOW
BLOWER X273
X274