1999 BMW Z3M COUPE Electrical Troubleshooting Manual


 
Pin Assignments





E = Input, A = Output, M = GroundPin ConnectionDescription/Function Signal Type
37
AP_EVZ5Activate valveCyl. 5 fuel injection valve
38AP_EVZ6Activate valveCyl. 6 fuel injection valve
39EF_OLNLevel signalOil level sensor
40AT_NWE1Activate valveVariable camshaft control valve 1
(inlet)
41AT_NWA1Activate valveVariable camshaft control valve 2
(outlet)
42AT_TEVActivate valveEvaporative emission valve
43AT_MDK1Activate motorCruise control actuator
44AT_MDK2Activate motorCruise control actuator
45AS_KFKCooling signalThermostat, characteristic map
cooling
46AT_LLFSSCLOSE signalIdle speed control valve
47AT_LLFSOOPEN signalIdle speed control valve
48MW_KSGroundShield knock sensor
49AS_DISAActivate valveValve, individual control intake
system
50Not used
51Not used
52AS_SLPVActivate valveSecondary air pump valve
X60004
Pin Type Signal Description/Function Connection
1
A61Charging signalInstrument cluster
2A30HStart signalBody electronics control module
(ZKE IV)
3AS_SLPActivate relaySecondary air pump relay
4Not used
5Not used
6Not used
7Not used
8Not used


 
Pin Assignments





E = Input, A = Output, M = GroundPin ConnectionDescription/Function Signal Type
9
Not used
10AEKPActivate relayFuel pump relay
11AOELDOil pressure signalInstrument cluster
12Not used
13Not used
14Not used
15Not used
16Not used
17ATDCrankshaft RPM speed signal TDInstrument cluster
18Not used
19ERFLReverse signalReversing light switch/ Automatic
transmission range switch
20Not used
21AA-OELNOil level signalThermal oil level sensor (TOENS)
control module
22EDFAHRSpeed signal right rearABS/ASC control module
23EKUPPClutch signalClutch switch
24EKL 54 ONBrake signalBrake light switch
25Not used
26E15A26Terminal 15Fuse 26
27EMFLCruise control signalCruise control interface
28ES_BLTSBrake signalBrake light switch
29AS_KORELActivate relayCompressor control relay
30ALDPVActivate valveLeakage diagnosis pump
31Not used
32E/ATXDIITXD diagnosis data linkData link connector
33ES_DWADrive-away protection signal (code)Electronic immobilizer control
module (EWS III)
34ELDPSLeakage signalLeakage diagnosis pump
35M31GroundCruise control interface
36E/ACAN+CAN bus highInstrument cluster,
ABS/ASC control module


 
Pin Assignments





E = Input, A = Output, M = GroundPin ConnectionDescription/Function Signal Type
37
E/ACAN–CAN bus lowInstrument cluster, ABS/ASC
control module
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 MS42.1 (6–CYLINDER M52)
X6300
POWER





 




2 6
1.5 RT
1.5 RT/WS
4 RT/WS
4 RT
X6300
237 X6000126 X8500
4
K6300
ENGINE CONTROL
MODULE RELAYG6400
B+ JUNCTION
POINT E–BOX
A6000
ENGINE CONTROL
MODULE (DME) 85 30
87
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
1 RTX64101
21X641022
POWER
DISTRIBUTION
0670.2
F20230AF20430A5
X8680F20320A
P98
FUSE HOLDER IN
E–BOX
15
8
4 RT/WS
6
4 RT/WS/GE
X86804
89 X60001
1515
1 RT/WS/GE 1.5 RT/WS/GE 2.5 RT/WS/GE
X6960
FUSE DETAILS
0670.3
X60002
.5 BR/WS
Z3 VERSIONS

32





 



1 3 X6151
X61521
1 GN1 GN1 GN
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 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
313131313131
1 X6054
2.5 GN 2.5 GN
26 8X6326X63264
K6326
UNLOADER RELAY,
TERMINAL 15 

  
10FUSE DETAILS
0670.3
F20530A
X8680
1X60001
P98
FUSE HOLDER IN
E–BOX
.5 GNA6000
ENGINE CONTROL
MODULE (DME)
GROUND
DISTRIBUTION
0670.4
X6454
X6832


ENGINE CONTROL SYSTEM MS42.1 (6–CYLINDER M52)Z3 VERSIONS
X6456
1 SW/RT 1 SW/GE 1 SW/BL 1 SW/GN 1 BR 1 BR
1 BR1 BR 1 BR
GROUND
DISTRIBUTION
0670.4
1.5 BR
R8554
RESISTOR
X6456
GROUND
DISTRIBUTION
0670.4
1.5 BR
R8554
RESISTOR
X6456
GROUND
DISTRIBUTION
0670.4
1.5 BR
R8554
RESISTOR240
2w240
2w
1 SW/WS240
2w
1 BR
1 SW/VI



ENGINE CONTROL SYSTEM MS42.1 (6–CYLINDER M52)
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
4
FUSE DETAILS
0670.3
F20230A
X8680
P98
FUSE HOLDER IN
E–BOX
.5 RT/WS/GE .5 RT/WS/GE .5 RT/WS/GE .5 RT/WS/GE .5 RT/WS/GE .5 RT/WS/GE
Z3 VERSIONS

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





 



32 X6130
X62752
.5 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 MS42.1 (6–CYLINDER M52)
1
.5 WS/GE.5 GN/BLX6275
1 .5 RT/WS/GE
.5 GN/VIX6276
.5 RT/WS/GE
.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 MS42.1 (6–CYLINDER M52)




 



12 X6304
K6304
SECONDARY AIR
PUMP RELAY
X61331X6133
2
Y6133
AIR PUMP
X6455
GROUND
DISTRIBUTION
0670.4
X63045
GROUND
DISTRIBUTION
0670.4 .5 RT/WS
26
4 RT/GE
30
A6000
ENGINE CONTROL
MODULE (DME)
2
4
3 X60004
X183651
Y6139
LEAKAGE DIAGNO-
SIS PUMP
.5 WS
.75 BR/BL
3
34
3
.5 GE
.5 SW/GN
8
8
FUSE DETAILS
0670.3
F20430A
X8680
P98
FUSE HOLDER IN
E–BOX
31
12 X60002
.5 BR/GN
28 X6004
X783
24
2
.35 RT/GE
14X78
FUSE DETAILS
0670.3
F137.5A
P90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3
F4615A
X65502
X65501Y6550
SOLENOID VALVE
(”RUNNING
LOSSES”)
1.5 BL/RTX6139
X6139
.5 GE/BL
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.5 RT/WS
.35 BR/BL/GE.5 RT/WS
31
F10750A
X1982
Z3 VERSIONS