sensor BMW M3 1999 E36 Electrical Troubleshooting Manual

323i, 328i, M3
318i 83RXD
X1001714







INDICATORS
INSTRUMENT CLUSTER
.5 WS/SW
A2w
INSTRUMENT
CLUSTER
8) ROLLOVER
PROTECTION
WARNING
LIGHT P90
FRONT POWER
DISTRIBUTION BOX 6211.0-04
DATA LINK
0670.5
X228
2312 .35 WS/VI
11 .35 WS/GE15 .35 WS/GN
N4
ON–BOARD
COMPUTER
22
H10
CHIME MODULE
X10716
.35 WS/SW
24
A6000
ENGINE CONTROL
MODULE (DME) X60009
.5 WS/SW
.5 WS/SWX20
X17X16
TXD
X10706
23
X3312X17
26
F275A
.5 BL/SW
S2
IGNITION SWITCH
4) OPEN
MOMENTARILY
IN START AND
OFF, OPEN
WITH KEY
REMOVED
5) CLOSED IN
OFF, START,
RUN AND AC-
CESSORYS14
DRIVER’S DOOR
JAMB SWITCH
1) DOOR OPEN
2) DOOR CLOSED .5 BR/GR/GE X33
11
N10
MULTI–FUNCTION
CLOCK .35 BL/BR/GEFUSE DETAILS
0670.3
2
9 .35 SW/RT N4
ON–BOARD
COMPUTER
X522
D100
DATA LINK
CONNECTOR
X60027
4 5
31
30
TI
19X20
X8072
.5 WS/GN .5 WS/GN
.75 BL/SW.5 BR/GR/GE
POWER WINDOWS
(FH)
5133.1
2 1
X173X13006
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4 TI
CHECK
X443
13
.5 BR/GR/GE
15.75 BRX3521X352
2
31
8
X16
10
30
.35 WS/BLX14
N24
ROLLOVER
SENSOR
X1304412
A35
ON–BOARD
DISPLAY .35 WS/BL X17
24X16
X10010
GROUND
DISTRIBUTION
0670.4

6113.2 MULTI–FUNCTION CLOCK





B21
ON–BOARD
COMPUTER
TEMPERATURE
SENSOR
31
30
31
3131
.35 BR/GR
P90
FRONT POWER
DISTRIBUTION BOX
2 X10018
6 X1001730 X10018
FUSE DETAILS
0670.3FUSE DETAILS
0670.3
18 9 14
816
.5 SW/GN
.35 GR/RT
START
1240.0
LIGHT SWITCH
DETAILS
6300.0 .35 SW/GN
X1070
N10
MULTI–FUNCTION
CLOCK
1217 X1070
X10012
1 X770
2 X770
GROUND
DISTRIBUTION
0670.4
X10010GROUND
DISTRIBUTION
0670.4
X276
31 F31
5AF235AF457.5A
30h
58g
FUSE DETAILS
0670.3
A4
CHECK CONTROL
MODULE
57 3 X1074
.5 WS/GN .5 WS/BL .5 WS/GR
345
LAC DATA CLC

0.7 1





X7721
5X905
2.2 12 3 X904
X9051 2 3
S75
BLOWER SWITCH
0) OFF
1) SLOW
2) MEDIUM
3) FAST
4) MAXIMUM
R11
BLOWER
RESISTORS
1) OPENS IF
RESISTORS
OVERHEAT
4
X906
X9044
2.5 GN/GR 2.5 GN/GR
X816
2
1 X816
M30
BLOWER MOTOR
2.5 BL 1.5 GN 1.5 SW
GROUND
DISTRIBUTION
0670.4 2.5 GN/GR
6
55
LIGHT SWITCH
DETAILS
6300.0
.5 GR/RT .5 GR/RT
1A32y
THERMOSTAT
1) REAR WINDOW
DEFOGGER
4
X899
7X35
REAR WINDOW DE-
FOGGER/ANTENNA
6424.0
.5 BR/WS.5 BL/SW
2
X772
2
B11
LH HEAT EX-
CHANGER
TEMPERATURE
SENSOR
X8997.5 BR/SW
.5 BR/OR
GROUND
DISTRIBUTION
0670.4
58g
X10012X10010
2.5 GN/BR
1210
3 4
3131

 


6450.7-00
6450.7-01S36
TEMPERATURE
SWITCH M30
BLOWER MOTOR 6450.7-006450.7-00
5
A2w
INSTRUMENT
CLUSTER 6450.7-0210
2221 23A115
AUTOMATIC
CLIMATE CONTROL
MODULE
3
B11
LH HEAT EX-
CHANGER
TEMPERATURE
SENSORA6000
ENGINE CONTROL
MODULE (DME) 4
1
2
B12
RH HEAT EX-
CHANGER
TEMPERATURE
SENSORB13
OUTSIDE
TEMPERATURE
SENSOR
B14
EVAPORATOR
TEMPERATURE
SENSOR 6450.7-02
6450.7-04 6450.7-02 X1527
F2030A
K13
REAR DEFOGGER
RELAY
6424.0
16M36
FRESH AIR FLAP
MOTOR
F315AF235A
181111 Y4
WATER VALVE
ASSEMBLY
B9
INTERMEDIATE
PRESSURE
SWITCH F16
5AF4130A
6450.7-05
K19
COMPRESSOR
CONTROL RELAY
Y2
AIR CONDITIONING
COMPRESSOR 6450.7-04
6450.7-04
B8y
PRESSURE
SWITCH
K22
HIGH SPEED
RELAY
1715A
X1527
P90
FRONT POWER
DISTRIBUTION BOX
6
N2
FINAL STAGE UNIT 6450.7-00
149241225
20 86450.7-00K4
BLOWER RELAY
A6000
ENGINE CONTROL
MODULE (DME) 6450.7-05
P90
FRONT POWER
DISTRIBUTION BOX
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
M9
AUXILIARY FAN
MOTOR
K21
NORMAL SPEED
RELAY
S36y
DOUBLE
TEMPERATURE
SWITCHB9
INTERMEDIATE
PRESSURE
SWITCH F16
5AF4840A
6450.7-06
B8y
PRESSURE
SWITCHK22
HIGH SPEED
RELAY 6450.7-06
A6000
ENGINE
CONTROL
MODULE (DME) 6450.7-06
P97
AUXILIARY FUSE
BOX
M9
AUXILIARY FAN
MOTOR
K21
NORMAL SPEED
RELAY
F165AF397.5AP90
FRONT POWER
DISTRIBUTION BOX
6450.7-04
A6000
ENGINE CONTROL
MODULE (DME) 6450.7-06
713
NOT USED
19LIGHT SWITCH
DETAILS
6300.0 58g
START
1240.030h
B9508
PRESSURE
SWITCH6450.7-05 6450.7-05
6450.7-05
6450.7-05AUXILIARY FAN –
4–CYLINDER ENGINE
3 2 1
6450.7-03 6450.7-03 6450.7-03 6450.7-03
M35
DEFROSTER FLAP
MOTORM44
REGULATION FLAP
MOTORM46
REAR
RECIRCULATION
FLAP MOTORX1527
M40
RECIRCULATION
FLAP MOTORB9508
PRESSURE
SWITCH6450.7-06 6450.7-066450.7-06 P90
FRONT POWER
DISTRIBUTION BOX
S2
IGNITION SWITCH
15
AUXILIARY FAN –
6–CYLINDER ENGINE
PARK VENTILATION
WITH IHKA E36
6412.20
26
X1527
TXD
6450.7 INTEGRATED CLIMATE REGULATION (IHKA E36)

 



Pin Assignments

E = Input, A = Output, M = Ground
X1527
Pin Type Description/Function Connection
1
EOutside temperatureOutside temperature sensor
2EEvaporator temperatureEvaporator temperature sensor
3EHeater temperature, leftLeft heat exchanger temperature sensor
4EHeater temperature, rightRight heat exchanger temperature sensor
5EVehicle speed signal (Speedometer output
signal)Instrument cluster
6ERPM speed signal TDEngine control module (DME)
7EIllumination inputIllumination
8AOutput signalOn-board computer
9ETerminal 50Starter
10ARPM speed increaseEngine control module (DME)
11AA/C compressor activationPressure switch
12ARear window signalRear window
13AWater valve activation, rightRight water valve
14AFresh air flap motor activationFresh air flap motor
15AFresh air flap motor activationFresh air flap motor
16AFresh air flap motor activationFresh air flap motor
17AFresh air flap motor activationFresh air flap motor
18AWater valve activation, leftLeft water valve
19AA/C fan activationA/C fan final stage
20EIndependent ventilationRelay box
21MGroundControl panel
22MGroundMixing actuator
23MGroundControl panel
24ETerminal 15Fuse
25ETerminal 30Fuse
26E/ADiagnostic data linkData link connector


TEMPERATURE CONTROL
INTEGRATED CLIMATE REGULATION (IHKA E36)






A115
AUTOMATIC
CLIMATE CONTROL
MODULE
X774X7721
X772
2
B11
LH HEAT EX-
CHANGER
TEMPERATURE
SENSOR
5V (15)5V (15)5V (15)5V (15)
3412
X7711
X771
2B14
EVAPORATOR
TEMPERATURE
SENSOR
B13
OUTSIDE
TEMPERATURE
SENSOR
X7731
X773
2B12
RH HEAT EX-
CHANGER
TEMPERATURE
SENSOR
X18161
22X774
.35 GE/RT .35 GE/BL .5 BL .35 GRX1527
.35 BR/OR
.35 BR/OR.35 BR/OR .35 BR/OR .35 BR/OR
X15276
X10054
11A115
AUTOMATIC
CLIMATE CONTROL
MODULE TD
X1047
.35 SW
.35 SW
.5 SW X1527


ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20
A6000
ENGINE CONTROL
MODULE (DME) X6000
80 .5 SW.5 SWX20
20
X8015
5
3 .35 SW/WS
.35 SW/WS
X188
INSTRUMENT
CLUSTER
6211.0
.5 SW/WS
2 X17
TACH
2
31A2w
INSTRUMENT CLUSTER
2) VEHICLE SPEED
OUTPUTTD
1
2
36 318i
ENGINE CONTROL
SYSTEM MS41.1
(6–CYLINDER M52)
1210.17

318i83 .35 SW/GN
15 X1659
.5 WS/SW

6581.2 ON–BOARD COMPUTER (BC V)
POWER






B21
ON–BOARD
COMPUTER
TEMPERATURE
SENSORS7
COMBINATION
SWITCH
10) PROGRAM
MODUSA2w
INSTRUMENT
CLUSTER
1) FUEL
CONSUMPTION
A6000
ENGINE CONTROL
MODULE (DME)
30R30
TI
15
31
3131
.35 BR/GR.35 BR/RT.35 WS/GE.35 WS/VI.35 WS/SW
.5 WS/SW
P90
FRONT POWER
DISTRIBUTION BOX
6 X10017
30 X10018
FUSE DETAILS
0670.3
914
816
.5 SW/GN
.35 GR/RT
START
1240.0
LIGHT SWITCH
DETAILS
6300.0 .35 SW/GN
X1070
21 X16
N4
ON–BOARD
COMPUTER
RXD TXD
12 X1070
475
13 6 X1071
DATA LINK
0670.5
.35 BR/RT
9 X6000
24 X201 X770
2 X770
GROUND
DISTRIBUTION
0670.410 X32
1 X32
GROUND
DISTRIBUTION
0670.4
.5 WS/SW
10X276
30h
58g
316
14 X10017
26 X17
23
.35 BL/BR/GE
FUSE DETAILS
0670.3
X16
F235AF275A F457.5A
31
1
X10010X173X10012
CHECK
GROUND
DISTRIBUTION
0670.4
31
FUSE DETAILS
0670.3
.35 BR
15
X228
30
1
A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II)
2 X10018
FUSE DETAILS
0670.3
8
F315A
X1071
14
PARK VENTILATION
WITH HR
6412.10
PARK VENTILATION
WITH IHKA E36
6412.20
TI .5 SW/WS/GE




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
B6238 OIL TEMPERATURE SENSOR . . . . . . . . . . . LH side of engine

B6240
KNOCK SENSOR . . . . . . . . . . . . . . . . . . . . . . .
top front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-2



B6256

DUAL TEMPERATURE SENSOR
(COOLANT TEMPERATURE) . . . . . . . . . .
RH front of engine below intake manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11-1

B9508

PRESSURE SWITCH . . . . . . . . . . . . . . . . . . . .

front RH side of engine compartment near RH headlight assembly . . . . . . . . . . . . . .

09-3




B62001

OXYGEN SENSOR (IN FRONT OF
CATALYTIC CONVERTER) . . . . . . . . . . . . .
on catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

37-1




B62002

OXYGEN SENSOR (BEHIND CATALYTIC
CONVERTER) . . . . . . . . . . . . . . . . . . . . . . . .
on catalytic converter (318i) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

37-2




B62101

OXYGEN SENSOR I (IN FRONT OF
CATALYTIC CONVERTER) . . . . . . . . . . . . .
on catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
38-2



B62102

OXYGEN SENSOR I (BEHIND CATALYTIC
CONVERTER) . . . . . . . . . . . . . . . . . . . . . . . .
on catalytic converter





B62201

OXYGEN SENSOR II (IN FRONT OF
CATALYTIC CONVERTER) . . . . . . . . . . . . .
on catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
38-2



B62202

OXYGEN SENSOR II (BEHIND CATALYTIC
CONVERTER) . . . . . . . . . . . . . . . . . . . . . . . .
on catalytic converter



C101 . CONTACT RING . . . . . . . . . . . . . . . . . . . . . . . . top of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-2
C900 . SUPPRESSION FILTER . . . . . . . . . . . . . . . . . in upper RH C–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-2
D100 . DATA LINK CONNECTOR . . . . . . . . . . . . . . . . rear RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05-1
D110 . OBD II CONNECTOR . . . . . . . . . . . . . . . . . . . . below LH side of dash

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



E8 . . . . RIGHT HEADLIGHT . . . . . . . . . . . . . . . . . . . . . front RH side of engine compartment
E9 . . . . REAR DEFOGGER I . . . . . . . . . . . . . . . . . . . . in rear window