1999 BMW M3 Electrical Troubleshooting Manual





Pin Assignments





E = Input, A = Output, M = Ground
X6000
Pin Type Description/Function Connection
1
ACyl. 2 ignition coil controlCyl. 2 ignition coil
2ACyl. 4 ignition coil controlCyl. 4 ignition coil
3ACyl. 6 ignition coil controlCyl. 6 ignition coil
4MGroundGround point
5ACyl. 2 fuel injection valve controlCyl. 2 fuel injection valve
6ACyl. 1 fuel injection valve controlCyl. 1 fuel injection valve
7MGroundHot wire air mass meter
8EHot wire air mass meterHot wire air mass meter
9ETI-measurement signal (fuel consumption)Instrument cluster
10EEngine coolant temperatureEngine coolant temperature sensor
11EFuel tank pressureFuel tank pressure sensor
12EThrottle position signalThrottle position sensor
13Not used
14EIntake air temperatureIntake air temperature sensor
15ESpeed signal right rearABS/ASC control module
16EActivate A/CPressure switch
17Not used
18EDrive-away protection signal (code)Electronic immobilizer control module
(EWS II)
19EA/C-ON-signalAir conditioning operating unit
20A“Check engine” indicator controlInstrument cluster
21ACamshaft controlVariable camshaft control valve
22ACyl. 3 fuel injection valve controlCyl. 3 fuel injection valve
23ACyl. 6 fuel injection valve controlCyl. 6 fuel injection valve
24ACyl. 4 fuel injection valve controlCyl. 4 fuel injection valve
25MOxygen sensor heating groundOxygen sensor (in front of catalytic
converter)
26EBattery voltageB+ jump start junction point
27AActivate valveIdle speed control valve
28MGroundGround point
29ACyl. 1 ignition coil controlCyl. 1 ignition coil




Pin Assignments





E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
30
ACyl. 3 ignition coil controlCyl. 3 ignition coil
31ACyl. 5 ignition coil controlCyl. 5 ignition coil
32MGroundGround point
33ACyl. 5 fuel injection valve controlCyl. 5 fuel injection valve
34MGroundGround point
35AActivate relaySecondary air pump relay
36ACrankshaft RPM speed signal TDInstrument cluster
37Not used
38MGroundShield knock sensor
39MGroundTemperature sensors
40MGroundCrankshaft position/RPM sensor
Fuel tank pressure sensor
41MGroundShield camshaft position sensor
42MGroundThrottle position sensor
43ECamshaft positionCamshaft position sensor
44AVoltage supplyThrottle position sensor
Fuel tank pressure sensor
45AThrottle position signalABS/ASC control module
46ETI-measurement signal (fuel consumption)Instrument cluster
47Not used
48AVoltage supplyCrankshaft position/RPM sensor
49ETerminal 15Ignition switch
50ARunning lossesSolenoid valve
51AActivate valveCarbon canister valve
52ASignal exhaust flapExhaust gas flap valve
53AActivate valveIdle speed controle valve
54EBattery voltage, terminal 87Engine control module relay
55MOxygen sensor heating groundOxygen sensor (in front of catalytic
converter)
56MGroundGround point
57ECyl. 1-3 knock sensorKnock sensor
58ECyl. 1-3 knock sensorKnock sensor
59ECyl. 4-6 knock sensorKnock sensor




Pin Assignments





E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
60
EProgramming voltageData link connector
61MOxygen sensor heating groundOxygen sensor (behind catalytic converter)
62AActivate valveSecondary air pump value
63ECyl. 4-6 knock sensorKnock sensor
64MGroundCamshaft position sensor
65ECamshaft positionCamshaft position sensor
66Not used
67MOxygen sensor signal groundOxygen sensor (in front of catalytic
converter)
68AActivate valveEvaporative emission valve
69AActivate relayFuel pump relay
70MOxygen sensor signal groundOxygen sensor (in front of catalytic
converter)
71MOxygen sensor signal groundOxygen sensor (behind catalytic converter)
72MOxygen sensor signal groundOxygen sensor (behind catalytic converter)
73EActivate relayEngine control module relay
74AActivate A/C compressorCompressor control relay
75ESensor signalOxygen sensor (in front of catalytic
converter)
76ESensor signalOxygen sensor (in front of catalytic
converter)
77ESensor signalOxygen sensor (behind catalytic converter)
78ESensor signalOxygen sensor (behind catalytic converter)
79MOxygen sensor heating groundOxygen sensor (behind catalytic converter)
80AASC signal ZASlip control module ABS/ASC
81AASC signal ZWVSlip control module ABS/ASC
82AASC signal MSRSlip control module ABS/ASC
83ESensor signalCrankshaft position/RPM sensor
84Not used
85E/ACAN LOWTransmission control module EGS
86E/ACAN HIGHTransmission control module EGS
87EBattery voltage, terminal 87Engine control module relay
88E/ATxD diagnosis data linkData link connector

ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER M52)




X6300
POWER








48
.5 RT
4 RT/WS
.5 RT/WS.5 BR
4 RT4 RT
6 X6300
73 5426 X6000
26X7000
X6821
2
K6300
ENGINE CONTROL
MODULE RELAYG6430
B+ JUMP START
JUNCTION POINT
A6000
ENGINE CONTROL
MODULE (DME)86
8530
87
.5 RT/WS1.5 RT/WSA8500
TRANSMISSION
CONTROL MODULE
(EGS)
A7000
TRANSMISSION
CONTROL MODULE
(EGS)
1 RTPOWER
DISTRIBUTION
0670.2
54
1210.17-041.5 RT/WS
1 RT/WS.5 RT/WS 2.5 RT/WS
1210.17-01
4 RTX6412
1210.17-04
.5 RT/WS
87
2.5 RT14
X6002D100
DATA LINK
CONNECTOR
1.5 RTX6411
31
6 RT
2.5 RT
1210.17-02
X8500

ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER M52)
Y6120
EVAPORATIVE
EMISSION VALVE
.5 RT/WS
2
X6120
1 X6120







A6000
ENGINE CONTROL
MODULE (DME) .5 BR
Y6106
CYL. 6 FUEL
INJECTION VALVE
–+
–+Y6101
CYL. 1 FUEL
INJECTION VALVE
–+
Y6102
CYL. 2 FUEL
INJECTION VALVE
–+
Y6103
CYL. 3 FUEL
INJECTION VALVE
–+
Y6104
CYL. 4 FUEL
INJECTION VALVE
–+
Y6105
CYL. 5 FUEL
INJECTION VALVE
–+
2716865222423 X6000
.5 RT/WS
1 X6101
1 X6103
.5 RT/WS
1
X6105
1 X6106
.5 RT/WS
1 X6104.5 RT/WS
1 X6102
.5 RT/WS1 RT/WS
2 X6130
2 X61022 X61042 X6106
2
X61052 X6103
2X6101
.75 BR/WS .75 BR/RT .75 BR/GE .75 BR/BL .75 BR/GN .75 BR/VI X6130
Y6130
IDLE SPEED
CONTROL VALVEX6820
.5 RT/WS
1210.17-00
1.5 RT/WS1210.17-00
33 .5 WS/
GN
3
.5 WS/
GE
53
1210.17-05 .5 RT/WS
3131313131313131










.5 GN
X6326
4 6
2.5 RT
8 X6326
2K6326
UNLOADER RELAY,
TERMINAL 15
86
85 30
87
2.5 GN

ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER M52)






7 X33
POWER
DISTRIBUTION
0670.2
21 X20
49 X6000
2.5 GNS2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
.75 GN
.5 GN
43 .5 GR/BR
.5 BR/RT
B6256
DUAL
TEMPERATURE
SENSOR
(COOLANT
TEMPERATURE)
1 2 X6205
.5 GR/BR
B6205
INTAKE AIR
TEMPERATURE
SENSOR .5 GR
14 3910 X6000
A6000
ENGINE CONTROL
MODULE (DME) X203
2.5 GN
1 X209
X6832
X8038
21
X6256
X8071X8051
A2w
INSTRUMENT
CLUSTER
1112 X20
17 18 X17
.5 BR/GE .5 BR/VI
.5 BR/GE .5 BR/VI
.5 BR/GE .5 BR/VI
.5 GR/BR
B6236
ENGINE COOLANT
TEMPERATURE
SENSORB6232
ENGINE COOLANT
TEMPERATURE
SENSOR
2.5 GN
1210.17-00
GROUND
DISTRIBUTION
0670.4
2
10
3


2W 240
1.5 SW/WS
29 X6454
GROUND
DISTRIBUTION
0670.42







1 3 X6151
2.5 GN
X64561 SW/WS
X61521
1 GN1 GN1 GN
3
3 X6152
1 30 2 31 3 X6000
X6819
T6151
CYL. 1 IGNITION
COIL
T6152
CYL. 2 IGNITION
COIL
W6165
SHIELD UP TO
10mm BEFORE
IGNITION COIL
CONNECTOR
A6000
ENGINE CONTROL
MODULE (DME) 1.5 SW/RT 1.5 SW/GE 1.5 SW/BL
1.5 SW/GN1.5 SW/VI 1 SW/RT 1 SW/GE 1 SW/BL 1 SW/GN 1 SW/VI1 GN 1 GN 1 GN
X6151
2
2
X6153
X61532 1
X61541 3 X61542T6154
CYL. 4 IGNITION
COIL
3 X6155
X61552 1
X61561 3 X6156
T6156
CYL. 6 IGNITION
COIL
T6153
CYL. 3 IGNITION
COILT6155
CYL. 5 IGNITION
COIL
1 BR 1 BR 1 BR 1 BR 1 BR 1 BR
GROUND
DISTRIBUTION
0670.4
X61501
2.5 GN
4 9 7 6 3 10 X6150
313131313131
X6831M3
R8554
RESISTOR
2W 240
X6456
GROUND
DISTRIBUTION
0670.4
R8554
RESISTOR
2W 240
X6456
GROUND
DISTRIBUTION
0670.4
R8554
RESISTOR

ENGINE CONTROL SYSTEM MS41.1 (6–CYLINDER M52)
P90
FRONT POWER
DISTRIBUTION BOX







1210.17-00
.5 RT/WS 2.5 RT/WS
.5 RT/WS
X6381
GROUND
DISTRIBUTION
0670.4
F1815A
2 X638
X20132 6 8 X6301
69X6301
4
1.5 GN/VI
2.5 GN/VI
.5 BR/GN
M2
FUEL PUMP
A6000
ENGINE CONTROL
MODULE (DME)
K6301
CYL. 1–6 FUEL
PUMP RELAY 

X6000
X13006
1.5 RT
FUSE DETAILS
0670.3 1.5 GN/VIX8007
25
.5 RT/WS
X1001615
16 X10016
1210.17-00
X6822





6775
1210.17-05
70 55 76
X208 1 RT/WS
124 3
X62101
X62101
B62101
OXYGEN SENSOR I
(IN FRONT OF
CATALYTIC
CONVERTER)
2 143
X62201
X62201
B62201
OXYGEN SENSOR
II (IN FRONT OF
CATALYTIC
CONVERTER) .5 RT/WS
.5 SW .5 GE .5 BR .5 SW.5 GE .5 BR1 RT/WS/GE
71 79 77
2 14 3
X62102
X62102
B62102
OXYGEN SENSOR I
(BEHIND
CATALYTIC
CONVERTER) .5 RT/WS
.5 SW .5 GE .5 BR
72 61 78
2 14 3
X62202
X62202
B62202
OXYGEN SENSOR
II (BEHIND
CATALYTIC
CONVERTER) .5 RT/WS
.5 SW .5 GE
.5 BR (PARTIAL)
1210.17-09

+(


+(