2001 BMW Z3M COUPE Electrical Troubleshooting Manual






Pin Assignments (Z3 Versions)




E = Input, A = Output, M = GroundPin ConnectionDescription/Function Signal Type
37
E/ACAN–CAN bus lowInstrument cluster, ABS/ASC/DSC
control module, steering angle
sensor
38Not used
39Not used
40Not used
X60005
Pin Type Signal Description/Function Connection
1
AP_ZSZ3Ignition coil signalCyl. 3 ignition coil
2AP_ZSZ2Ignition coil signalCyl. 2 ignition coil
3AP_ZSZ1Ignition coil signalCyl. 1 ignition coil
4Not used
5M31LGroundGround point
6MA_ZSRGroundGround point
7AP_ZSZ6Ignition coil signalCyl. 6 ignition coil
8AP_ZSZ5Ignition coil signalCyl. 5 ignition coil
9AP_ZSZ4Ignition coil signalCyl. 4 ignition coil



ENGINE CONTROL SYSTEM MS43 (6–CYLINDER M54)











2
1.5 RT
2.5 RT/WS/GE
4 RT/WS
23 7 X600017 X70001
4
G6400
B+ JUNCTION
POINT E–BOX
A6000
ENGINE CONTROL
MODULE (DME) 8530
87
A7000
TRANSMISSION
CONTROL MODULE
(EGS)
1 RTX64101
21
POWER
DISTRIBUTION
0670.2
F20130AF20230A5F20320A
P98
FUSE HOLDER IN
E–BOX
15
4
4 RT/WS
6X86802
8 X60001
15 15
2.5 RT/WS/GE 1.5 RT/WS
FUSE DETAILS
0670.3 X60002
.5 BR/WS
X6300
6
4 RT
X6300
5K6300
ENGINE CONTROL
MODULE RELAY
X641022
1
X8680
4 RT/WS
F20430A
15
8
1 RT/WS/GE
4 RT/WS/GE X64101
87
X6960
Z3 VERSIONS

1 RT/WS
1.5 SW/RT1.5 SW/WS1.5 SW/GE1.5 SW/BL1.5 SW/GN1.5 SW/VI
X6456
32











1 3 X6151
X61521
1 RT/WS1 RT/WS
3
3 X6152
2 1 9 8 7 X60005
T6151
CYL. 1 IGNITION
COIL
T6152
CYL. 2 IGNITION
COIL
A6000
ENGINE CONTROL
MODULE (DME) 1 RT/WS 1 RT/WS
X6151
2
2
X6153
X61532 1X61541 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 BR1 BR
1 BR1 BR 1 BR
1 BR
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4
313131313131
1 X6054
2.5 RT/WS 2.5 RT/WS/GE
240
2W
X6456X6456
R8554
RESISTOR240
2W240
2WR8554
RESISTORR8554
RESISTOR
X6969
1 RT/WS



ENGINE CONTROL SYSTEM MS43 (6–CYLINDER M54)
2











A6000
ENGINE CONTROL
MODULE (DME)
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
VA LV E –+
Y6105
CYL. 5 FUEL
INJECTION VALVE
–+
3334353638 X60003
1 X61011 X61031
X6105
1 X61061 X61041 X6102
2 X61022 X61042 X6106
2
X61052 X6103X6101
.75 BR/WS .75 BR/RT .75 BR/GE .75 BR/BL .75 BR/GN .75 BR/VI
37
313131313131
10
FUSE DETAILS
0670.3
F20530A
X8680
P98
FUSE HOLDER IN
E–BOX
.5 RT/GE .5 RT/GE .5 RT/GE .5 RT/GE .5 RT/GE .5 RT/GE
4
8530
87
X6327
6X6327
2K6327
INJECTION VALVES
RELAY
X6454
GROUND
DISTRIBUTION
0670.4
1X60001
A6000
ENGINE CONTROL
MODULE (DME)
86 8 5 GN
X60537
2.5 RT/GE
2.5 RT/GE
X6970
Z3 VERSIONS

46
4
FUSE DETAILS
0670.3
F20230A
X8680
P98
FUSE HOLDER IN
E–BOX
47











32 X6130
X62752
1 RT/WS/GE
1
40
41 42 52 49 X60003Y6130
IDLE SPEED
CONTROL VALVE
Y6275z
VARIABLE CAM-
SHAFT CONTROL
VALVE 1 (INLET)
A6000
ENGINE CONTROL
MODULE (DME) X6130X6276
2
X6120
2 1 X6120
Y6120
EVAPORATIVE
EMISSION VALVE2 X61631
X6167
12 X6167
Y6167
VALVE, INDIVIDUAL
CONTROL INTAKE
SYSTEM
Y6276
VARIABLE CAM-
SHAFT CONTROL
VALVE 2 (OUTLET)
.5 WS/GN
313131313131


ENGINE CONTROL SYSTEM MS43 (6–CYLINDER M54)
1
.5 WS/GE.5 GN/BLX6275
1 .5 RT/WS/GE
.5 GN/VIX6276
.5 RT/WS
.5 BR .5 RT/WS/GE .5 RT/WS/GE .5 RT/WS/GE
X6163
.5 BR/WS .5 BR/BLY6163
SECONDARY AIR
PUMP VALVE
Z3 VERSIONS

POWER
DISTRIBUTION
0670.2G7512
B+ JUNCTION
POINT


ENGINE CONTROL SYSTEM MS43 (6–CYLINDER M54)










32 X6304
K6304
SECONDARY AIR
PUMP RELAY
X61331X6133
2
Y6133
AIR PUMP
X6455
GROUND
DISTRIBUTION
0670.4
X63045
GROUND
DISTRIBUTION
0670.4
26
4 RT/GE
30
A6000
ENGINE CONTROL
MODULE (DME)
4
3 X60004
X24998
M119
LEAKAGE DIAGNO-
SIS PUMP
.75 BR/BL
1
20
.5 SW/GN
8
8
FUSE DETAILS
0670.3
F20430A
X8680
P98
FUSE HOLDER IN
E–BOX
.5 BR/WS
28
X783
24
2
.35 RT/GE
14X78
FUSE DETAILS
0670.3
F135A
P90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3
F4615A
1.5 BL/RTX1714
X1714
X181BRAKE LIGHTS
6325.06
X1001632X10018
S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED
3) BRAKE PEDAL
DEPRESSED
(TEST)
4) BRAKE PEDAL
RELEASED
(NORMAL) 21 34
.5 BL/RT
.35 BR/BL/GE
31
F10750A
X1982
X60538
.5 BR/WS
Z3 VERSIONS



ENGINE CONTROL SYSTEM MS43 (6–CYLINDER M54)










1 X62072
117.5 SW
.5 GE
B6207
HOT FILM AIR
MASS METER
A6000
ENGINE CONTROL
MODULE (DME)
.5 GE+–
3X6207
.5 RT/WS
45X60003
.5 GR/BR
6FUSE DETAILS
0670.3
F20320A
X8680
P98
FUSE HOLDER IN
E–BOX
21
.5 BR
8
12X6203
.5 RT/WS .5 RT/WS .5 RT/WS .5 RT/WS
3X6203
B6203
CRANKSHAFT
POSITION/RPM
SENSOR
.5 GE
18.5 BR
5
32X6214
1X6214
B6214
CAMSHAFT
POSITION SENSOR
1 (INLET)
.5 GE
15.5 BR
2
32X6224
1X6224
B6224
CAMSHAFT
POSITION SENSOR
2 (OUTLET)
1X6279
2X6279
B6279
THERMOSTAT,
CHARACTERISTIC
MAP COOLING
Z3 VERSIONS



ENGINE CONTROL SYSTEM MS43 (6–CYLINDER M54)











X65001
GROUND
DISTRIBUTION
0670.4
4 X6500
2 6 8 X6301
10X6301
4
2.5 GN/VI .35 SW/VI
M2
FUEL PUMP
A6000
ENGINE CONTROL
MODULE (DME)
K6301w
FUEL PUMP RELAY 

 


X60002
X13032
7221624 19 18
234 1
X62102
X62102
B62102
OXYGEN SENSOR
I (BEHIND
CATALYTIC
CONVERTER)
3 24 1
X62202
X62202
B62202
OXYGEN SENSOR
II (BEHIND
CATALYTIC
CONVERTER) .5 RT/WS
.5 SW .5 GE .5 SW.5 GE .5 BR
16
X100166
P90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3FUSE DETAILS
0670.3
F135AF1815A
.5 RT/WS
.5 BR
1201421 13 15
234 1
X62101
X62101
B62101
OXYGEN SENSOR
I (IN FRONT OF
CATALYTIC
CONVERTER)
3 24 1
X62201
X62201
B62201
OXYGEN SENSOR
II (IN FRONT OF
CATALYTIC
CONVERTER) .5 RT/WS
.5 SW .5 GE .5 SW.5 GE .5 BR
.5 BR
.5 RT/WS
X60004
X86808P98
FUSE HOLDER IN
E–BOX
FUSE DETAILS
0670.3
F20430A
Z3 VERSIONS