1998 BMW Z3M ROADSTER Electrical Troubleshooting Manual






GROUND DISTRIBUTION
GROUND X13004
 !""




#""$

.5 BRX624
4Y6
PASSENGER’S
SIDE MIRROR
X2857A64
WIPER/WASHER
MODULE (LOW II)
X7443M23
PASSENGER’S
WINDOW MOTOR
.5 BR 2.5 BR
1.5 BR.75 RT/WSX357
1E800
FRONT LEFT
INTERIOR LIGHT
X1620
S13
PASSENGER’S
DOOR JAMB
SWITCH
1.5 BR
1
.5 BRX351
S56
PASSENGER’S
SEAT, SEAT
CONTROL SWITCH
2 BR
X13134
4 BR
X2561
.5 BR
X942
X3362
.5 BR
X10126
.5 BR
X13004
4 BR
X2791
2 BR
X99952K911
PASSENGER’S
SEAT LENGTH
ADJUST CUT–OFF
RELAY
X9997
K910
PASSENGER’S
SEAT TILT ADJUST
CUT–OFF RELAY
7X9995
1.5 BR
X99942S911
PASSENGER’S
SEAT LIMIT
SWITCH
.5 BR
S56
PASSENGER’S
SEAT, SEAT
CONTROL SWITCH
2 BR
X11357
1.5 BR
WITH SPORT SEAT WITHOUT SPORT SEAT
2.5 BR






GROUND DISTRIBUTION
GROUND X13006
 !""




#""$

1.5 BR
0670.4-14
H5
RIGHT REAR TURN
LIGHTH28
RIGHT BACK UP
LIGHTH30
RIGHT TAIL LIGHTH31
RIGHT BRAKE
LIGHTH39
RIGHT TAIL LIGHT
5 X318E17
RIGHT REAR LIGHT
ASSEMBLY
1.5 BR
0670.4-14 H6
LEFT REAR TURN
LIGHTH24
LEFT BRAKE LIGHTH25
LEFT TAIL LIGHTH27
LEFT BACK UP
LIGHTH37
LEFT TAIL LIGHT
1 X319
E16
LEFT REAR LIGHT
ASSEMBLY






#""$
GROUND DISTRIBUTION
GROUND X13006

B17
RIGHT REAR
BRAKE PAD
SENSOR
 !""




E99
HARD TOP
CONNECTOR 11.5 BR
X7101
E44
RIGHT LICENSE
PLATE LIGHT
X380
1 X1102
X1625
X1624
X13007
.75 BR
2.5 BR 1.5 BR
4 BR .5 BR
X7131
X13006
0670.4-13
X7091
E43
LEFT LICENSE
PLATE LIGHT
.75 BRX711
2S826
LUGGAGE
COMPARTMENT
LIGHT SWITCH
X4131
H34
HIGH LEVEL STOP
LIGHT
.5 BR1.5 BR
E9
REAR DEFOGGER I
X13017
2
X12661
S164
CONVERTIBLE TOP
END–POSITION
MICRO SWITCH
X11209
2
2.5 SW
X9824
2.5 BR
2.5 BR
X11209
2
WITHOUT HARD
TOP PROVISIONS WITH HARD TOP
PROVISIONS
S164
CONVERTIBLE TOP
END–POSITION
MICRO SWITCH
X10299
2
.5 BR
2.5 BR
.5 BRX352
1S14
DRIVER’S DOOR
JAMB SWITCH
.5 BR
S51
DRIVER’S SEAT,
SEAT CONTROL
SWITCH
X2751
2 BR
X99917K920
DRIVER’S SEAT
TILT ADJUST CUT–
OFF RELAY
X9993
K921
DRIVER’S SEAT
LENGTH ADJUST
CUT–OFF RELAY
2X9991
1.5 BR
X99902S910
DRIVER’S SEAT
LIMIT SWITCH
.5 BR
S51
DRIVER’S SEAT,
SEAT CONTROL
SWITCH
2 BR
WITH SPORT SEAT WITHOUT SPORT
SEAT
2.5 BR 1.5 BR
2 BR
1.5 BR
2.5 BR
2.5 BR
X114032
X114022
.75 BR .75 BR
M ROADSTER






GROUND DISTRIBUTION
GROUNDS X13016 AND X13032
 !""




#""$

2.5 BRX605
4
X8243A18
HIFI AMPLIFIERX65001M2
FUEL PUMP
2.5 BR 2.5 BR
X13016
X1812615N9
RADIO
1.5 BR
2.5 BR
X181801N22
CD CHANGER
.5 BR
X13032

X22272
.5 BR
.5 BR






GROUND DISTRIBUTION
GROUND X18170
 !""




#""$


.5 BR
X400
X1608
.5 BR
1.5 BR 1.5 BR
.5 BR1E58
PASSENGER’S
SEAT HEATER
S6
ASC SWITCH S4
HORN SWITCH
8
X321
X521
4
X1617
.75 BR
S76
REAR WINDOW
DEFOGGER
SWITCH
X7403E59
PASSENGER’S
SEATBACK
HEATER
.5 BR
X898
A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II)
X16597
.5 BR.75 BR 2 TELEPHONE
CONNECTOR
X7333E56
DRIVER’S SEAT-
BACK HEATER1E57
DRIVER’S SEAT
HEATER
4
.5 BR
.5 BR .5 BR
1.5 BR.5 BRX532
2
H10
CHIME MODULE
3
X5221
X1213
1
X13047
.5 BR
A110
DIGITAL CLOCK
X5163S18
HAZARD SWITCH X10263
S8
LIGHT SWITCH
X183332
E29
FRONT CIGAR
LIGHTER LIGHT
E25
FRONT ASHTRAY
LIGHT
X1226
1 BR.5 BR
X10013
.5 BR
X1098
2
.5 BR .5 BR
B1
RIGHT FRONT
SPEED SENSOR –
ABS
X1133
.5 BR
4–CYLINDER
X130451S143
CONVERTIBLE TOP
ACTUATING
SWITCH
.5 BR
Z3 ROADSTER
M ROADSTER
1
E96
GEAR SHIFT
LEVER INDICA-
TOR
X1439M ROADSTER
.5 BR
S7
COMBINATION
SWITCH
.5 BR

4
.5 BR
 !""




#""$
.5 BR
4 BR
X11355
1.5 BR
.5 BR
S53
DRIVER’S SEAT,
SEAT HEATER
SWITCH
1
X6514
X10064
.5 BR
X6584S54
PASSENGER’S
SEAT, SEAT
HEATER SWITCH
E82
TRANSMISSION
POSITION INDICA-
TOR LIGHT
X1193
.5 BR
S20w
RADIO ANTI–
THEFT SWITCH
X5391
.5 BR
X3901
X195275
H8
RIGHT FRONT
AUXILIARY TURN
LIGHT
4 BR
X1325215A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
S8503
PROGRAM
SWITCH
X85032
.5 BR
X181701.5 BR 1.5 BR .5 BR
4
D110
OBD II
CONNECTOR
S30
BRAKE LIGHT
SWITCH
X784
.5 BR
.5 BR
2
S559
PASSENGER’S AIR
BAG CUT–OFF
SWITCH
X19565
LATE PRODUCTION
B2
LEFT FRONT
SPEED SENSOR –
ABS
X1143
X1133
.5 SW
.5 BRX96475
.5 SW
B1
RIGHT FRONT
SPEED SENSOR –
ABS
Z3 ROADSTER
6–CYLINDER
LATE PRODUCTION
X1618
1.5 BR1.5 BR
B2
LEFT FRONT
SPEED SENSOR –
ABS
X1143
X1133
.5 SW
.5 BRX13304.5 SW
B1
RIGHT FRONT
SPEED SENSOR –
ABS
B1
RIGHT FRONT
SPEED
SENSOR –
ABS
X1133
.5 BR
.5 BRM ROADSTER
WITH ASCM ROADSTER
WITH ABS

ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20






BLOCK DIAGRAM
0670.5 DATA LINK !""



 



TXDRXD
D100
DATA LINK
CONNECTOR
#""$
BOARD COMPUTER
(BC – LOW)
6581.3
CENTRAL BODY
ELECTRONICS
(ZKE IV)
6100.0
ELECTRONIC
TRANSMISSION
CONTROL
(EGS A4S 270R)
2460.2
SUPPLEMENTAL
RESTRAINT
SYSTEM (AIR BAG)
3234.0
SLIP CONTROL
(ABS/ASC)
3450.1
DRIVE–AW AY
PROTECTION
(EWS II)
6135.0
INSTRUMENT
CLUSTER
6211.0
ENGINE CONTROL
SYSTEM MS41.1
(6–CYLINDER
M52/S52)
1210.17
SLIP CONTROL
(ABS)
3450.0

X6869
.5 WS/VI/GE
.5 WS/VI/GE.5 WS/VI/GEX6867
6–CYLINDER
.5 WS/VI






DATA LINK
TXD
 !""



 
#""$


A2w
INSTRUMENT
CLUSTER
X183
.5 WS/VI
A7
SLIP CONTROL
MODULE (ABS) X11
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV) X10182
X16
TXD
TXD.5 WS/VI .5 WS/VI
28
1211
TXD
A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II) X1659TXD .35 WS/VI
2
A35y
BOARD
COMPUTER
(BC – LOW) X10245
2
TXDX6002
20
X20
.5 WS/VI
17
88 X8500
.5 WS/VI
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
88 X6000
.5 WS/VI
A6000
ENGINE CONTROL
MODULE (DME)X6866
17D100
DATA LINK
CONNECTOR
.5 WS/VI
TXD.5 WS/VITXD
6–CYLINDER
A52
SLIP CONTROL
MODULE
(ABS/ASC) X1171TXD 7
.5 WS/VI
.75 WS/VI
6–CYLINDER X1170
4–CYLINDER 36
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE X74TXD .5 WS/VI
9
A52
SLIP CONTROL
MODULE
(ABS/ASC) X1175TXD 46
.5 WS/VI .5 WS/VI
M ROADSTER
WITH ABSM ROADSTER
WITH ASC Z3 ROADSTER
Z3 ROADSTER