2001 BMW Z3M COUPE Electrical Troubleshooting Manual






Pin Assignments




E = Input, A = Output, M = Ground
X271
Pin Type Description/Function Connection
1
AFuel level sensorFuel tank sensors
2Not used
3AGround supply for fuel tank sensor and
vehicle speed sensorFuel tank sensor and vehicle speed
sensor
4EPosition signal (TW)Vehicle speed sensor
5Not used
6EA/C-ON-signalAir condition switch
7EActivate A/CPressure switch
8Not used
9EOil level signalThermal oil level sensor (TOENS) control
module (Z3 Versions)
Engine control module (DME) (M Versions)
10Not used
11Not used
12Not used

9
.5 SW/RT














INSTRUMENT CLUSTER
INDICATORS
P90
FRONT POWER
DISTRIBUTION BOX
A2w
INSTRUMENT
CLUSTER
2) VEHICLE
SPEED
OUTPUT
10) AIR BAG 23 X17
2
X1614
.5 BR/VI
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
7
14 X10017
X16
X74
FUSE DETAILS
0670.3
F275A
N9
RADIO
10 X18126
A35y
BOARD
COMPUTER
(BC – LOW)
9 X10245
A51
WIPER/WASHER
MODULE
5 X285
TACH
.5 SW/WS
.35 SW/WS
.5 SW/WS .5 SW/WS
.5 SW/WS
 TACH
10 2
X10464
OUTPUT–SIGNAL
SPEEDOMETER
P90
FRONT POWER
DISTRIBUTION BOX
3
2X10018
X522
FUSE DETAILS
0670.3
F315A
X5221
GROUND
DISTRIBUTION
0670.4


GROUND
DISTRIBUTION
0670.4
24




2
15
X17
A18
HIFI AMPLIFIER
1 X10266
.5 SW/WS
X3223
HARMAN KARDON
SOUND SYSTEM .5 SW/WS
31

H10
CHIME MODULE
X188
20 X1717COUPE
ROADSTER
A3984
OIL–/OUTSIDE
TEMPERATURE
GAUGE CONTROL
MODULE
15 X13578
.5 SW/WSTACH
Z3 VERSIONS M VERSIONS




INDICATORS











INSTRUMENT CLUSTER
3
GROUND
DISTRIBUTION
0670.4A2w
INSTRUMENT
CLUSTER
HEADLIGHTS/FOG
LIGHTS
6312.0TURN/HAZARD
LIGHTS
6313.0LIGHT SWITCH
DETAILS
6300.0
.75 GE/BR.5 BL/GN
4
.5 BL/BR
3
.5 GR/RT
X172
19 X16
2 X713
2X118
1X118
1 X713
.5 GE
B16
LEFT FRONT BRAKE
PAD SENSOR
.5 GE
B17
RIGHT REAR BRAKE
PAD SENSOR
S58
DRIVER’S SEAT
BELT SWITCH 6 X275
14
8 X275
14 X10017
23
P90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4 .5 BL/VI/GE
F275A








9
1515
45
2112 X33


22
.5 BL/SW
11 X33
.75 BL/SW
.75 BR
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4
ANTI–THEFT
SYSTEM (ALPINE)
6575.2
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
X443
.75 BR/GR/GE
2 X352
1
X352
23X17




HEADLIGHTS/FOG
LIGHTS
6312.0
.35 WS
1
DATA LINK
0670.5
.35 WS/VI
X1612
ANTI–THEFT
SYSTEM (DWA)
6575.0
Z3 VERSIONS

A35y
BOARD COMPUTER
(BC – LOW)













INDICATORS
INSTRUMENT CLUSTER
P90
FRONT POWER
DISTRIBUTION BOX
A2w
INSTRUMENT
CLUSTER
11) FUEL GAUGE
14) SPEEDOMETER
31
416X1622
3X2714
B10
VEHICLE SPEED
SENSORX3832
X3831
14
FUSE DETAILS
0670.3FUSE DETAILS
0670.3
GROUND
DISTRIBUTION
0670.4
X65003
13
B6y
FUEL SENSOR
X10018232X100176
X17
.5 BR/GE
.5 BR/SWX6500
6.5 BR/SW .5 BR/RT
.5 BR/SW
X805
11
R1/2
FFUSE DETAILS
0670.3
X11291
.5 BR/GE


F235AF4615AF315A
313131
30
7 X10245.5 BR/GE
X1715
X60027
D100
DATA LINK
CONNECTOR
.35 WS/GN
15
X17
25.35 WS/SW
X102454
Z3 VERSIONS

X90632
X9063144X18303
.5 SW/VI


FUSE DETAILS
0670.3
P90
FRONT POWER
DISTRIBUTION BOX
X16
23
X1001714











INDICATORS
INSTRUMENT CLUSTER
A2w
INSTRUMENT
CLUSTER
X423
1
F275A
2 1
B18
BRAKE FLUID
LEVEL SWITCH
1) LOW LEVEL
2) NORMAL LEVEL X111
1 .5 BR/VI
2 1
X9633
GROUND
DISTRIBUTION
0670.4
18
BRAKE
FLUID
X90631X1112S31
PARK BRAKE
SWITCH
1) BRAKE SET
2) BRAKE NOT
SET
17 X16
16 X1170
A52
SLIP CONTROL
MODULE
(ABS/ASC)
19 X1746
A65
DYNAMIC STABIL-
ITY CONTROL UNIT
(DSC)
X2717.5 SW/GE
B9508
PRESSURE
SWITCH
X127
4
S220
AIR CONDITIONING/
RECIRCULATING
SWITCH ASSEMBLY
X18349
2
.5 SW/GR 1 SW/VI
X1022
.5 GR/SW/GE
6
X100545
X189
.5 SW/GR 1 SW/VI
INTEGRATED
HEATING– AND
CLIMATE CONTROL
6450.6Z3 VERSIONS
M VERSIONS.5 VI/GR
.35 GR/SW/GE
21 X17
WITH DSC WITH ASC
Z3 VERSIONS
LATE PRODUCTION
6X17
CHARGING
SYSTEM
1230.0
.5 BL


PARK
FLUID
X1628X1123
DYNAMIC STABILITY
CONTROL (DSC III)
3452.1
DYNAMIC STABILITY CONTROL
(DSC MK 60)
3452.2
.35 BR/VI
.5 BR/VI
.5 BL/BR/GE
.5 BL/BR/GE
WITH DSC
WITH DSC

X1894
.5 GE













INSTRUMENT CLUSTER
INDICATORS
X18055
.5 SWP90
FRONT POWER
DISTRIBUTION BOX
111
ENGINE CONTROL
SYSTEM MS43
(6–CYLINDER M54)
1210.26
GROUND
DISTRIBUTION
0670.4
14 X10017
FUSE DETAILS
0670.3
F275A




.5 GR/BL
X1047
A6000
ENGINE CONTROL
MODULE (DME) X60004
3637
GROUND
DISTRIBUTION
0670.4



X62542
3X2499
.5 GN/GE
X625431
2 X10018
FUSE DETAILS
0670.3
F315A
26
.35 WS/VI
10
TXD DATA LINK
0670.5
6 X10017
FUSE DETAILS
0670.3
F235A
12
FUSE DETAILS
0670.3
F2610A
9
X1623
CAN+
9 X271
X1893
7 X166
A837
ELECTRONIC
IMMOBILIZER CONTROL
MODULE (EWS III)A19007
THERMAL OIL
LEVEL SENSOR
(TOENS) CONTROL
MODULE
X6002
1 D100
DATA LINK
CONNECTOR
B6254
THERMAL OIL
LEVEL SWITCH
12
X19007
A2w
INSTRUMENT
CLUSTER
X19007
.5 SW .35 SW.5 SW.5 BR .5 BR .5 GE
B6236
ENGINE COOLANT
TEMPERATURE
SENSOR
CAN–
.5 GN/BL/GE
TACHOMETER TEMPERATURE
GAUGE
CAN+ CAN–
Z3 VERSIONS
19 X17
.5 BR/GN
2524
.5 GR/BR .5 BR/RT
X1612
B6231
OIL PRESSURE
SWITCH
1) PRESSURE
BETWEEN
0.2–0.5 BAR
2) NORMAL
PRESSURE
12
17X60004
X623612
X60003
1 X2499
.5 BR/GN

B6236
ENGINE COOLANT
TEMPERATURE SENSOR


FUSE DETAILS
0670.3
P90
FRONT POWER
DISTRIBUTION BOX
23
X1001714











INDICATORS
INSTRUMENT CLUSTER
A2w
INSTRUMENT
CLUSTER
TACHOMETERTEMPERATURE
GAUGE
X16
F275A
19
37
7
F275A
M VERSIONS
11 X60004
3926
.5 GR/BR .5 BR/GN
3 X6254
B6254
THERMAL OIL
LEVEL SWITCH
1 X6231
B6231
OIL PRESSURE SWITCH
1) PRESSURE BETWEEN
0.2–0.5 BAR
2) NORMAL PRESSUREX6021
S555
TIRE PRESSURE WARNING
SYSTEM (RDW) PUSHBUTTON
1) OFF
2) TEACH–IN PROCESS
X17
X6021
A6000
ENGINE CONTROL
MODULE (DME) 1
.5 SW/ RT/GE5
X60535
21
1
X100000
X6000345.5 SW/GN/GEX6053
.5 SW/GN
8
.5 GE/SWX6000319
7
X100000
2
X18170
GROUND DISTRIBUTION
0670.4 .5 GE/SW
.5 GE/SW
.5 BR/GN
20X271
9
.5 GN/GE.5 BR
X1894
24
.5 BR/RT
1 X6236
36X16
6.5 GE
X1893
2.5 BR
25
.75 BRX17
ENGINE CONTROL
SYSTEM MSS54 (6–CYL-
INDER S54 B32)
1210.27
X6491ENGINE CONTROL
SYSTEM MSS54 (6–CYL-
INDER S54 B32)
1210.27
X6462
CAN+ CAN–
CAN+ CAN–
.75 BR
X6236
21















CONSOLE INSTRUMENTS
INSTRUMENT CLUSTER
P90
FRONT POWER
DISTRIBUTION BOX
F315A

A3984
OIL–/OUTSIDE
TEMPERATURE
GAUGE CONTROL
MODULE 18
2 X10018
FUSE DETAILS
0670.3
6X9561
GROUND
DISTRIBUTION
0670.4
X166
A2w
INSTRUMENT
CLUSTER
2) VEHICLE
SPEED
OUTPUT
15
2 X17
X13578
M VERSIONS
F235A

8
6X10017
.5 GR/BR
3 X6254
B6254
THERMAL OIL
LEVEL SWITCH
A6000
ENGINE CONTROL
MODULE (DME)
34 X60003X600043637
CAN– CAN+
.5 GE .5 BRX18835
X18836
67
CAN– CAN+ .35 GE .5 BR
.5 GR/RT
5 X9561
B59
OIL TEMPERATURE
GAUGE
.5 BR/GN
4
11
8
.5 BR/GN
.5 WS/RT
2
1
6
.5 WS/RT
.5 WS/VI
1
10
5
.5 WS/VI
LIGHT SWITCH DETAILS
6300.0
6X2239
GROUND
DISTRIBUTION
0670.4
X166
.5 GR/RT
5 X2239
B921
OUTSIDE
TEMPERATURE
GAUGE
.5 BR/BL
3
5
4
.5 BR/BL
.5 WS/GE
2
2
1
.5 WS/GE
.5 WS/BL
1
4
3
.5 WS/BL
.5 BR/GE
4
3
2
.5 BR/GE
X3505
GROUND
DISTRIBUTION
0670.4
X10010
X770
B21z
TEMPERATURE
SENSOR .5 BR
2
17
.5 GN/GE
1
169X13578
ENGINE CONTROL
SYSTEM MSS54 (6–CYL-
INDER S54 B32)
1210.27FUSE DETAILS
0670.3
58g2
.5 SW/WS
X188
6211.0-00
.5 SW/WS