BMW 318ti 1998 E36 Electrical Troubleshooting Manual

49
50
22
23
65Y199
CARBON
CANISTER VALVE 1210.20-08


!
44 162078308546 X6000
1210.20-00
27K6300
ENGINE CONTROL
MODULE RELAY
S2
IGNITION SWITCH
31Y6101
CYL. 1 FUEL
INJECTION VALVE
Y6102
CYL. 2 FUEL
INJECTION VALVE
Y6103
CYL. 3 FUEL
INJECTION VALVE
Y6104
CYL. 4 FUEL
INJECTION VALVE 1210.20-01
26
1210.20-02
RXD
TXD 87
88
R6252
THROTTLE
POSITION
SENSOR 1210.20-04B6205
INTAKE AIR
TEMPERATURE
SENSOR 1210.20-04
B6203
CRANKSHAFT
POSITION/RPM
SENSOR 1210.20-03
B62001
OXYGEN SENSOR
(IN FRONT OF
CATALYTIC
CONVERTER) 1210.20-03
Y6120
EVAPORATIVE
EMISSION VALVE 1210.20-01
61
A8500
TRANSMISSION
CONTROL
MODULE (EGS) 1210.20-05A6000
ENGINE CONTROL
MODULE (DME)
T6151
CYL. 1 IGNITION
COIL
T6152
CYL. 2 IGNITION
COIL
T6153
CYL. 3 IGNITION
COIL
T6154
CYL. 4 IGNITION
COIL 1210.20-02
X6000

X6000
862853X6000
54
A8500
TRANSMISSION
CONTROL MODULE
(EGS) 1210.20-00
11
1210.20-07
A107
INTEGRATED
HEATING– AND
CLIMATE CONTROL
MODULE
1210.20-07
B9508
PRESSURE
SWITCH
1210.20-05
S36y
DOUBLE
TEMPERATURE
SWITCH
68
1210.20-05
K21
NORMAL SPEED
RELAY
5758Y6131
INTAKE AIR RES-
ONANCE
CHANGEOVER
VA LV E 1210.20-01
Y6130
IDLE SPEED
CONTROL VALVE 1210.20-01
29 X60002
7

7
B6209
HALL EFFECT
CAMSHAFT
SENSOR 1210.20-03
B6217
HOT FILM AIR
MASS METER
45
1210.20-05
1721
F1815A
P90
FRONT POWER
DISTRIBUTION
BOX
M2
FUEL PUMPK6301w
FUEL PUMP
RELAY
1210.20-031210.20-03
631210.20-0360
D100
DATA LINK
CONNECTOR
56
K6326
UNLOADER RELAY,
TERMINAL 15 1210.20-02
1210.20-04
A836
ELECTRONIC
IMMOBILIZER CONTROL
MODULE (EWS II)
10
A35y
BOARD COMPUTER
(BC – LOW)
838
A2w
INSTRUMENT
CLUSTER
4280
1210.20-07
S530
IHKS CONTROL
SWITCH
69
1210.20-07
A107
INTEGRATED
HEATING– AND
CLIMATE CONTROL
MODULE
F165AP90
FRONT POWER
DISTRIBUTION BOX
36K19
COMPRESSOR
CONTROL RELAY
1210.20-07
86
85
19177
B6240
KNOCK SENSOR 1210.20-04
407071
B62002
OXYGEN SENSOR
(BEHIND
CATALYTIC
CONVERTER) 1210.20-03
74
B6232
ENGINE COOLANT
TEMPERATURE
SENSOR 1210.20-04
34 556
1210.20-05
A202
ABS CONTROL
MODULE/
HYDRAULIC UNIT
79
A52
SLIP CONTROL
MODULE
(ABS/ASC) 1210.20-05
323
SPARK PLUGS1210.20-04
1210.20-06 1210.20-05
ASC ABS 4
POWER
DISTRIBUTION
0670.2
POWER
DISTRIBUTION
0670.2
1210.20-07
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
Y6133
AIR PUMPK6304
SECONDARY AIR
PUMP RELAY
1210.20-081210.20-08
POWER
DISTRIBUTION
0670.2
Y6163
SECONDARY AIR
PUMP VALVE 1210.20-08
66Y6263
FUEL CHANGE-
OVER VALVE 1210.20-08
P90
FRONT POWER
DISTRIBUTION
BOX 1210.20-08F25A
1210.20-04
B72
FUEL TANK
PRESSURE
SENSOR
72
64
* *
*
1210.20 ENGINE CONTROL SYSTEM (DME M5.2, 4–CYLINDER M44)


 



 !
Pin Assignments

E = Input, A = Output, M = Ground
X6000
Pin Type Description/Function Connection
1
AOxygen sensor heating (–)Oxygen sensor (behind catalytic converter)
2AActivate valveIdle speed control valve
3AActivate valveCyl. 1 fuel injection valve
4AActivate valveCyl. 4 fuel injection valve
5Not used
6MGround, fuel injection valve output stagesGround point
7Not used
8A“Check engine” indicator controlInstrument cluster
9Not used
10EDrive-away protection signalElectronic immobilizer control module
(EWS II)
11EActivate A/CPressure switch
12Not used
13Not used
14Not used
15Not used
16EIntake air temperatureIntake air temperature sensor
17ESignal inputHot film air mass meter
18Not used
19EOxygen sensor signalOxygen sensor (in front of catalytic
converter)
20ECrankshaft position/RPMCrankshaft position/RPM sensor
21ECamshaft positionHall effect camshaft sensor
22ACyl. 3 ignition coil controlCyl. 3 ignition coil
23ACyl. 4 ignition coil controlCyl. 4 ignition coil
24Not used
25Not used
26EBattery voltageB+ junction point
27AEngine control module relay controlEngine control module relay, terminal 85
28MGround for electronics and shielding of
sensorsGround point


 



 !
Pin Assignments

E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
29
AIdle speed control valve controlIdle speed control valve
30AOxygen sensor heating (–)Oxygen sensor (in front of catalytic
converter)
31AActivate valveCyl. 3 fuel injection valve
32AActivate valveCyl. 2 fuel injection valve
33Not used
34MGround, remaining output stages (except
for ignition and fuel injection valves)Ground point
35Not used
36AA/C compressor cut-outCompressor control relay
37Not used
38Not used
39Not used
40ECyl. 3-4 knock sensorKnock sensor
41Not used
42ETI-measurement signal (fuel consumption)Instrument cluster
43Not used
44EThrottle positionThrottle position sensor
45MGroundHot film air mass meter
46MSensor groundOxygen sensors
47Not used
48Not used
49ACyl. 1 ignition coil controlCyl. 1 ignition coil
50ACyl. 2 ignition coil controlCyl. 2 ignition coil
51Not used
52Not used
53AComponent supply (+)Throttle position sensor/Fuel tank pressure
sensor
54EBattery voltage from engine control module
relayEngine control module relay, terminal 87
55MGround, ignitionGround point
56EIgnition switch, terminal 15Ignition switch, terminal 15
57AActivate auxiliary fanNormal speed relay


 



 !
Pin Assignments

E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
58
AActivate valveIntake air resonance changeover valve
59Not used
60EProgramming voltageData link connector
61AActivate valveEvaporation emission valve
62Not used
63AActivate relayFuel pump relay
64AActivate relay/valveSecondary air pump relay/Secondary air
pump valve
65AActivate valveCarbon canister valve
66AActivate valveFuel changeover valve
67Not used
68ESignal above 80 CDouble temperature switch
69EA/C-ON-signalAir conditioning operating unit
70ECyl 1-2 knock sensorKnock sensor
71MGround for sensorsTemperature-/ knock-/ throttle
position-sensors
72EFuel tank pressure signalFuel tank pressure sensor
73Not used
74ETemperature signalEngine coolant temperature sensor
75Not used
76Not used
77EOxygen sensor signalOxygen sensor (behind catalytic converter)
78ECrankshaft position/RPMCrankshaft position/RPM sensor
79ESpeed signal right rearABS/ASC control module
80ECrankshaft RPM speed signal TDInstrument cluster
81Not used
82Not used
83EVehicle speed signalOn-board computer
84Not used
85E/ACAN-LOWEGS/ASC control module
86E/ACAN-HIGHEGS/ASC control module
87ARxD diagnosis data lineData link connector
88E/ATxD diagnosis data lineData link connector





 

.5 RT/WS





POWER, FUEL INJECTION VALVES




!



ENGINE CONTROL SYSTEM (DME M5.2, 4–CYLINDER M44)
POWER
DISTRIBUTION
0670.2
85 86
8730
K6300
ENGINE CONTROL
MODULE RELAY X6410
4 8
6 X6300
26 27
2X6300
1 RT .5 BR/WS
54 X6000
A6000
ENGINE CONTROL
MODULE (DME)
1 RT/WS 4 RT
1210.20-054 RT/WS
1.5 RT/WS.5 RT/WS X6821.5 RT/WS
55 26 X8500
A8500
TRANSMISSION
CONTROL MODULE
(EGS) 1.5 RT/WS1 RT 4 RT
WITH EGS
.5 RT/WS

1210.20-03 4 RT
2.5 RT/WS.5 GN
1210.20-03
541.5 RT/WS
1210.20-03
.35 RT/WS
3131
.5 GN
1210.20-08(PARTIAL)

.5 BR/VIY6120
EVAPORATIVE
EMISSION VALVE
.5 RT/WS
1 X6120
2 X6120




!


.5 BR
2
A6000
ENGINE CONTROL
MODULE (DME) .5 BR/BL Y6103
CYL. 3 FUEL
INJECTION VALVE
–+
– + Y6101
CYL. 1 FUEL
INJECTION VALVE
–+
Y6102
CYL. 2 FUEL
INJECTION VALVE
–+Y6104
CYL. 4 FUEL
INJECTION VALVE +
161 58 32 31X6000
1 X6101
.5 RT/WS
1 X6104
1 X6103
.5 RT/WS
1 X6102.5 RT/WS.5 RT/WS
2 X6130
2
X6102
2 X6103
2
X6104
2 X6101
.5 BR/GE
.5 BR/WSX6130
Y6130
IDLE SPEED
CONTROL VALVE X6820
.5 RT/WS
2.5 RT/WS
–
Y6131
INTAKE AIR RES-
ONANCE CHANGE-
OVER VALVE –+ 2
X6131
1X6131
.5 RT/WS
34
.5 BR/GN
29
3
3131313131313131
.5 BR/GN .5 BR/BL

ENGINE CONTROL SYSTEM (DME M5.2, 4–CYLINDER M44)
IGNITION COILS




!


X203
2.5 GN
2.5 GNS2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
POWER
DISTRIBUTION
0670.27 2.5 GN
21
2.5 GNX20
X33
1 X209
X6833
56
3 X61513 X61523 X6154
1T6151
CYL. 1 IGNITION
COILT6152
CYL. 2 IGNITION
COILT6154
CYL. 4 IGNITION
COILX6151
3 X6153
1T6153
CYL. 3 IGNITION
COIL
2X615321 X615221 X6154
.5 GN 1 GN 1 GN
2
W6165
SHIELD UP TO
10mm BEFORE
IGNITION COIL
CONNECTOR
49
X6456
GROUND
DISTRIBUTION
0670.4
5022
X6456
GROUND
DISTRIBUTION
0670.4
23
1 BR 1 BR1 GN
1 WS 1 RT 1 GESPARK PLUGS 1 GN
A6000
ENGINE CONTROL
MODULE (DME)1 BR 1 BR
1 BL
175X61506
2 X6150
2.5 GN
X6454
X6000GROUND
DISTRIBUTION
0670.4 1.5
WS1 .5 RT 1.5 GE 1.5 BL
X6832
2.5 GN
3131313131
 

85 86
8730
K6326
UNLOADER RELAY,
TERMINAL 15
4 8
6 X6326
2X6326
4 RT
X6454
GROUND
DISTRIBUTION
0670.4
.5 GN
POWER
DISTRIBUTION
0670.2
2.5 RT
X6411
2.5 RT
X600214
D100
DATA LINK
CONNECTOR1210.20-03
2.5 RT
2
10
3

.5 GN
B62002
OXYGEN SENSOR
(BEHIND
CATALYTIC
CONVERTER)
X6200232
.5 GE
X62002
1 4
.5 BR .5 SW
.5 GN





FUEL PUMP, HEATED OXYGEN SENSOR, CRANKSHAFT SENSORS




!


ENGINE CONTROL SYSTEM (DME M5.2, 4–CYLINDER M44)
P90
FRONT POWER
DISTRIBUTION BOX
2.5 GN/VI
X6381
GROUND
DISTRIBUTION
0670.4X10016
15
X10016
16X20
13 2.5 GN/VI
M2
FUEL PUMP 6 X6301
8
X6301
4
K6301w
FUEL PUMP RELAY
X600063
A6000
ENGINE CONTROL
MODULE (DME) .5 BR/GN .5 RT/WS
30
8786
85
2.5 RT
X6382
X13006
X1311 2.5 GN/VI
2.5 GN/VI
1210.20-00 1210.20-02
X600078
2
20
1210.20-00
3046
19
21
X6203321
A6000
ENGINE CONTROL
MODULE (DME)
X620932
X6454
B6209
HALL EFFECT CAM-
SHAFT SENSOR
X62091
1210.20-00
B62001
OXYGEN SENSOR (IN
FRONT OF CATALYTIC
CONVERTER)
X6200132
.5 GE
X62001
4 1
.5 BR .5 SW
W6203
CRANKSHAFT
POSITION/RPM
SENSOR SHIELD
B6203
CRANKSHAFT
POSITION/RPM
SENSOR
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4 .5 GE
155V (15)
3131313131
F1815A
W6203
CRANKSHAFT
POSITION/RPM
SENSOR SHIELD
1
31
1210.20-00
77
15
31

X8008
.75 SW
 

.35 SW .35 GE
.35 RT/WS

X14





!


ENGINE CONTROL SYSTEM (DME M5.2, 4–CYLINDER M44)
A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II)
7071
X16594
.5 SW/VI
.35 GN
15
10
X600074
B6232
ENGINE COOLANT
TEMPERATURE
SENSOR 1 X6232
A2w
INSTRUMENT
CLUSTER
CYL. 1 AND 2W9110
SHIELD
53
4440
.5 BR/SW
16
X171718
2 7
83
24
A35y
BOARD
COMPUTER
(BC – LOW)
X102454
TIA6000
ENGINE CONTROL
MODULE (DME)
3
X62324
2 X62521
X6252
R6252
THROTTLE
POSITION
SENSOR
.5 BR/SW.75 GR/WS .5 BR/VI
X6461
.5 BR/RT
1 X6205
B6205
INTAKE AIR
TEMPERATURE
SENSOR
.5 BR/SWX6205
2
.5 BR/RT .75 BR/SW
CYL. 3 AND 4
4 X62403
B6240
KNOCK SENSOR
W9110
SHIELD
21
W9110
SHIELD W9110
SHIELD .35 SW .35 SW

.5 BR/
VI.5 BR/GE
.5 BR/
VI.5 BR/GE .35 WS/SW
.5 WS/SW
3
31
31
.5 GR/WS
.5 BR/SW
11X2012
15
19
1 X131713
X13171
B72
FUEL TANK
PRESSURE
SENSOR .5 GR/WS
2
6 X60315
.5 BR/SW
72
18 X1420
X60317.5 BR/SW
.5 GE/RT
.5 GE/RT
.5 GE/RT.5 GR/WS
.5 GR/WSX10169
X20
X6000
 





!


ENGINE CONTROL SYSTEM (DME M5.2, 4–CYLINDER M44)
34
86
X600068
S36y
DOUBLE
TEMPERATURE
SWITCH X1137955
6
1210.20-00
85 X6000
A6000
ENGINE CONTROL
MODULE (DME)
3
2.5 BR 2.5 BR
.35 SW/GN 2.5 BR
A52
SLIP CONTROL
MODULE
(ABS/ASC)
X1170
67
799
.35 SW .35 GE
.75 BR/RT
57
8K21
NORMAL SPEED
RELAY
X52
5
.5 RT/WS
1X62174
45
2
17
3 X6217
1.5 RT/WS
.5 GR/VI .5 GR/BL

+–
X203
.5 GR/VI
X6454
CAN LOW CAN HIGH
GROUND
DISTRIBUTION
0670.485
CAN LOW CAN HIGH
GROUND
DISTRIBUTION
0670.4
.35 SW/GR
.35 GE .35 SW B6217
HOT FILM AIR
MASS METER
8
A2w
INSTRUMENT
CLUSTER X16
16 .5 GR
1
.5 GR
42
X17
13 .5 GN/RTX6031
3
.5 GN/RT
31313131
 

A8500
TRANSMISSION
CONTROL MODULE
(EGS)
X8500
8685
CAN LOW CAN HIGH
A202
ABS CONTROL
MODULE/HY-
DRAULIC UNIT
X11394
21
.5 WS/GR/GE37.5 WS/GR/GE.5 GE .5 BR
28
X6454
GROUND
DISTRIBUTION
0670.4
31
WITH ABS WITH ASC
12X20
X7846
X7845
.35 GE .35 SW