1999 BMW Z3M COUPE Electrical Troubleshooting Manual














6332.0 INTERIOR ACCESSORIES
P90
FRONT POWER
DISTRIBUTION BOX F32
30A
LIGHT SWITCH
DETAILS
6300.0X10018
414F37
10A
5
6S8
LIGHT SWITCH
0) OFF
1) PARK LIGHTS ON
2) HEADLIGHTS ON
3) DIMMER FUSE DETAILS
0670.3
2.5 GR/RTX503
FUSE DETAILS
0670.3
X503
X595
X101411 X531
GROUND
DISTRIBUTION
0670.4
2.5 BR
X9633
1.5 GR/RT
E25
FRONT ASHTRAY
LIGHT X1213
X1213
2
1
.5 GR/RT
X532
X532
1
2 .5 GR/RT
.5 BR .5 BR
GROUND
DISTRIBUTION
0670.4
X18170
X878
E29
FRONT CIGAR
LIGHTER LIGHTE28
FRONT CIGAR
LIGHTER
0
21
3
X18170M VERSIONS Z3 VERSIONS

X10017


HEADLIGHTS/FOG
LIGHTS
6312.0












X5034P90
FRONT POWER
DISTRIBUTION BOX F25
5A
K16
HAZARD FLASHER
RELAY
X50310
.5 GEFUSE DETAILS
0670.3
X9633
GROUND
DISTRIBUTION
0670.4
6350.0-01
TURN/HAZARD
LIGHTS
6313.0FUSE DETAILS
0670.3F34
15A
.5 WS/BL/GE
6 X64
4 8 9 X64
S8
LIGHT SWITCH
0) OFF
1) PARK LIGHTS ON
2) HEADLIGHTS ON
1 BL/GN
.5 BL/GNX184
.5 GE
8 X1001810
X1029
6350.0 CRASH CONTROL MODULE
1.5 RT/WS/GE 1.5 RT/WS/GE
0 2
1











.5 WS/BL/GE
N17
CRASH CONTROL
MODULE30
6X65
X6519 LSCH
LM31
WBCS87
3
.5 BL/GN6350.0-00
6350.0-02
.5 GE/BLWB
GROUND
DISTRIBUTION
0670.4
6350.0-025 4 .5 GE
.5 BR/BL .5 BR/SW/GE
BL
X101821A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
2
.5 BL/GN/GE
DWA
X10010
1.5 RT/WS/GE
8X13025
N12w
ANTI–THEFT
CONTROL MODULE
(ALPINE)



CRASH CONTROL MODULE










6350.0-01
K48
LOW BEAM LIGHT
RELAY
.5 GE/BL
8 X45
6
X454
GROUND
DISTRIBUTION
0670.4 56b
F12
7.5A F117.5A
E13
LEFT LOW BEAM
LIGHT
X165
3086
85
.5 BR/BL
LIGHT SWITCH
DETAILS
6300.0
S18
HAZARD SWITCH
1) OFF
2) ON X516
2
X5163
X18170
.5 GR/RT
GROUND
DISTRIBUTION
0670.4 4 56350.0-01
TURN/HAZARD
LIGHTS
6313.0
.5 BL/GN
2.5 GE
56b
2
1 X10035
2
1
X130
X130
87
POWER
DISTRIBUTION
0670.2
P90
FRONT POWER
DISTRIBUTION BOX
2
1 X135X135
E14
RIGHT LOW BEAM
LIGHT E7
LEFT HEADLIGHTE8
RIGHT HEADLIGHT
4 X100162
1 GE/BL 1 GE/GN
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4
X9633X166
1 21 2
POWER
DISTRIBUTION
0670.2














6424.0 REAR WINDOW DEFOGGER
.5 GR/RT
23
X8981
X898
S76
REAR WINDOW DE-
FOGGER SWITCH
1) OFF
2) ON
F235A
X10017
6
FUSE DETAILS
0670.3LIGHT SWITCH
DETAILS
6300.0
GROUND
DISTRIBUTION
0670.4
X18170
GROUND
DISTRIBUTION
0670.4
X13006
1 2
1 X379E9
REAR DEFOGGER I
M COUPE
4
1 X380
P90
FRONT POWER
DISTRIBUTION BOXF620A
X10015
12
FUSE DETAILS
0670.3
X6324
86X63
K9
UNLOADER RELAY,
TERMINAL 1586
8530
87
.5 BR/WS 2.5 SW













REAR WINDOW DEFOGGER
P90
FRONT POWER
DISTRIBUTION BOX
.5 GR/RT
75
4 X8983
X898
S76
REAR WINDOW DE-
FOGGER SWITCH
1) OFF
2) ON
F235A
X10017
6
FUSE DETAILS
0670.3
LIGHT SWITCH
DETAILS
6300.0
X3801
E99
HARD TOP
CONNECTOR 1
8
1
GROUND
DISTRIBUTION
0670.4
X18170
2.5 SW .5 BR .5 BR
GROUND
DISTRIBUTION
0670.4
X13006
100
1 21 21 2
1 X12661 X1265
2 X130171
E9
REAR DEFOGGER I
2.5 SW 2.5 SW
X379
1 X11209
2.5 SW
ROADSTER AND Z3 COUPE
F620A
X10015
12
FUSE DETAILS
0670.3
GROUND
DISTRIBUTION
0670.4
X9633
X6324
86X63.5 BL/SW
K9
UNLOADER RELAY,
TERMINAL 15
86
8530
87
GROUND
DISTRIBUTION
0670.4
X13006
1 X379E9
REAR DEFOGGER I
1 X380
ROADSTER COUPE
2.5 SW






.0
P90
FRONT POWER
DISTRIBUTION BOX
K19
COMPRESSOR
CONTROL RELAY 6450.6-02
F397.5AF165A
Y2
AIR CONDITIONING
COMPRESSOR 6450.6-02
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-02
K4
BLOWER RELAY 6450.6-00 F20
30A
S220
AIR CONDITION-
ING/RECIRCULAT-
ING SWITCH
ASSEMBLY
41
R11
BLOWER
RESISTORS 6450.6-00
S75
BLOWER SWITCH 6450.6-00
M30
BLOWER MOTOR 6450.6-00
3258
3
A2w
INSTRUMENT
CLUSTER 6450.6-01B14
EVAPORATOR
TEMPERATURE
SENSOR 6450.6-01
6 X18349
7 X18349
M111
FRESH AIR
RECIRCULATION
MOTOR 6450.6-01
S531
TEMPERATURE
WHEEL SWITCH 6450.6-01
A605
FUSE HOLDER
F953
2A
6450.6-02 6450.6-00
6450.6-01
6
Y4z
WATER VALVE 6450.6-01
P90
FRONT POWER
DISTRIBUTION BOX
K22
HIGH SPEED
RELAY
B9
INTERMEDIATE
PRESSURE
SWITCH
S36
TEMPERATURE
SWITCHM9
AUXILIARY FAN
MOTORK21
NORMAL SPEED
RELAY
6450.6-036450.6-03
6450.6-036450.6-03
6450.6-03 6450.6-03
B8y
PRESSURE
SWITCH
A2w
INSTRUMENT
CLUSTER 6450.6-03
B9508
PRESSURE
SWITCH
F165AF4030A
S221
EVAPORATOR
CONTROLLER
5 X18350
F2410A
AUXILIARY FAN
2
X18350
Z3 VERSIONS
6450.6 INTEGRATED HEATING– AND CLIMATE CONTROL







M VERSIONS
P97
AUXILIARY FUSE
BOX
K21
NORMAL SPEED
RELAY
S36
TEMPERATURE
SWITCHK22
HIGH SPEED
RELAY 6450.6-07
6450.6-076450.6-07
F165AF4840A
A6000
ENGINE
CONTROL
MODULE (DME) 6450.6-07
P90
FRONT POWER
DISTRIBUTION BOXP90
FRONT POWER
DISTRIBUTION BOX F16
5A
M9
AUXILIARY FAN
MOTOR 6450.6-07
P90
FRONT POWER
DISTRIBUTION BOX
K19
COMPRESSOR
CONTROL RELAY 6450.6-06
F397.5AF165A
Y2
AIR CONDITIONING
COMPRESSOR 6450.6-06
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-06
K4
BLOWER RELAY 6450.6-04 F20
30A
S220
AIR CONDITION-
ING/RECIRCULAT-
ING SWITCH
ASSEMBLY
43
R11
BLOWER
RESISTORS 6450.6-04
S75
BLOWER SWITCH 6450.6-04
M30
BLOWER MOTOR 6450.6-04
1258
S221
EVAPORATOR
CONTROLLER
3
A6000
ENGINE CONTROL
MODULE (DME) 6450.6-04
B14
EVAPORATOR
TEMPERATURE
SENSOR 6450.6-05
26
X18349
X18350
7 X18349
M111
FRESH AIR
RECIRCULATION
MOTOR 6450.6-05
S531
TEMPERATURE
WHEEL SWITCH 6450.6-05
A605
FUSE HOLDER
F953
2A
S2
IGNITION SWITCH 6450.6-046450.6-06 6450.6-04
6450.6-05
K33a
AIR CONDITIONING
RELAY, MOTRONIC 6450.6-04
6
Y4z
WATER VALVE 6450.6-05
B9
INTERMEDIATE
PRESSURE
SWITCHB8y
PRESSURE
SWITCH
5 X18350
B9508
PRESSURE
SWITCH 6450.6-07 6450.6-07
NOT USEDNOT USED 6450.6-07
6450.6-07
AUXILIARY FAN
INTEGRATED HEATING– AND CLIMATE CONTROL