ignition BMW Z3M ROADSTER 1999 E36 Electrical Troubleshooting Manual








 




2
3P90
FRONT POWER
DISTRIBUTION BOX11 2S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START8
A837
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS III) X1805
10
X2094
8 X33
2.5 SW/GE
X18057
2.5 SW/GE
.5 WS
X331
4 RT
POWER
DISTRIBUTION
0670.2
5030
X2
2.5 GN/SW .5 BL
6135.1 DRIVE–AWAY PROTECTION (EWS III)
X2095
FUSE DETAILS
0670.3POWER
DISTRIBUTION
0670.2
F315A
2
10
3
X10018
X189943 30
X18994
2S235
STARTER
IMMOBILIZATION
SWITCH
1) NORMAL
2) CLUTCH PEDAL
FULLY
DEPRESSED
F457.5A
2 1
1
X9633
GROUND
DISTRIBUTION
0670.4
POWER
DISTRIBUTION
0670.2
31
L1
EWS TOROIDAL
COIL
X1764
9
M VERSIONS

ELECTRONIC
TRANSMISSION
CONTROL
(EGS A4S 270R)
2460.2







 



2X10017
X5115 16
X511
7
.5 BR/SW
3P90
FRONT POWER
DISTRIBUTION BOX
S3
AUTOMATIC
TRANSMISSION
RANGE SWITCH
0) OFF (LOW)
1) ON (HIGH)
2S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
8
A837
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS III) X1805
X2094
8 X33
2.5 SW/GE
L2
X18057
2.5 SW/GE
X331
4 RT
50 2.5 GN/SW
DRIVE–AWAY PROTECTION (EWS III)
X2095
FUSE DETAILS
0670.3
F315AF285A
2
10
3
1 0POWER
DISTRIBUTION
0670.2
X10018
X189943 30
X18994
2S235
STARTER
IMMOBILIZATION
SWITCH
1) NORMAL
2) CLUTCH PEDAL
FULLY
DEPRESSED
F457.5A
2 1
1
.35 BR/SW
X9633
GROUND
DISTRIBUTION
0670.4
POWER
DISTRIBUTION
0670.2
WITHOUT EGS WITH EGS
X191
.5 BR/SW
X191
.5 BR/SW
G7512
B+ JUNCTION
POINT
1110
.5 WS.5 BL
31
L1
EWS TOROIDAL
COIL
X1764
9
F10650A
X1981
4 RT
Z3 VERSIONS

614






A4
F235A
K16
HAZARD FLASHER
RELAY S7
COMBINATION
SWITCH
F315A
P90
FRONT POWER
DISTRIBUTION BOX
A2w
INSTRUMENT
CLUSTER F27
5A
1
B10
VEHICLE SPEED
SENSOR 6211.0-02G6509
GENERATOR D+ C
F4615A
22231616312.034
A35y
BOARD
COMPUTER
(BC – LOW) 6211.0-00
A8
CRUISE CONTROL
MODULE
(TEMPOMAT) A18
HIFI AMPLIFIER
6211.0-00 6211.0-00
A51
WIPER/WASHER
MODULE 6211.0-00 6211.0-00
2
B6y
FUEL SENSOR 6211.0-02
3417
S31
PARK BRAKE
SWITCH 6211.0-0418
B18
BRAKE FLUID
LEVEL SWITCH 6211.0-009
H10
CHIME MODULE 6211.0-0019
B17
RIGHT REAR
BRAKE PAD
SENSOR B16
LEFT FRONT
BRAKE PAD
SENSOR
243
1230.0A
6211.0-01 6211.0-01A
A= X16B= X17C= X271
S14
DRIVER’S DOOR
JAMB SWITCH
23
6211.0-01
S2
IGNITION SWITCH 6211.0-01
22B
S58
DRIVER’S SEAT
BELT SWITCH 6211.0-01
21
A
14B
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE 6211.0-00
12
A52
SLIP CONTROL
MODULE
(ABS/ASC)
6313.0-03
S8
LIGHT SWITCH
6300.0
11
A
12
TXD
B
5
S2
IGNITION SWITCH 6211.0-04
15
B
13
2016A6000
ENGINE CONTROL
MODULE (DME) 6211.0-03215
F1515A
8
K16
HAZARD FLASHER
RELAY 6313.0-03
1S220
AIR CONDITION-
ING/RECIRCULAT-
ING SWITCH
ASSEMBLY 6211.0-086S221
EVAPORATOR
CONTROLLER 6450.6-01
A19007
THERMAL OIL
LEVEL SENSOR
(TOENS) CONTROL
MODULE 6211.0-06
97
K21
NORMAL SPEED
RELAY 6450.6-03
A35y
BOARD
COMPUTER
(BC – LOW) 6211.0-08
2525 A13
18
B6232
ENGINE COOLANT
TEMPERATURE
SENSOR 6211.0-0317
B6231
OIL PRESSURE
SWITCH 6211.0-03
19
A52
SLIP CONTROL
MODULE
(ABS/ASC)
2176
A6000
ENGINE CONTROL
MODULE (DME)
1920
11
RXD
N9
RADIO
D100
DATA LINK
CONNECTORM VERSIONSZ3 VERSIONS
NSWP90
FRONT POWER
DISTRIBUTION BOX
6211.0-04
M VERSIONSZ3 VERSIONS B
ABCB
BABAB
HARMAN KARDON
SOUND SYSTEM
6312.0
6211.0-086211.0-076211.0-07
6211.0 INSTRUMENT CLUSTER




Pin Assignments





E = Input, A = Output, M = Ground
X17
Pin Type Description/Function Connection
1
ETrailer turn signal indicator controlHazard flasher relay (Z3 Versions)
2AVehicle speed signalVarious control modules
3MGround supply, terminal 31 for indicator and
warning lampsGround point
4EVoltage supply, terminal 15 for instrument
cluster electronicsFront power distribution box, fuse 23
5EVoltage supply, terminal 15 for battery
charge indicatorIgnition switch, terminal 15 (M Versions)
6EGround supply, terminal 61 for battery
charge indicatorGenerator
7Not used
8EFog light indicator controlFront power distribution box, fuse 15
(Z3 Versions)
9ASound tone signalChime module
10not used
11ESlip control system warning lamp (ABS)
controlSlip control module (ABS/ASC)
(M Versions)
12EASC signalASC control module (M Versions)
13ATI-measurement signal (fuel consumption)Engine control module (DME) (M Versions)
14ESeat belt warning lamp controlDriver’s seat belt switch
15ESIA reset/service interval indicator resetData link connector
16EVoltage supply, terminal RFront power distribution box, fuse 46
17ACoolant temperature sensor (–)Coolant temperature sensor (M Versions)
18ECoolant temperature sensor (+)Coolant temperature sensor (M Versions)
19EOil pressure warning lamp controlOil pressure switch (M Versions)
Engine control module (Z3 Versions)
20Not used
21MGround (ASC)Ground point (M Versions)
21EABS warning lamp (ABS)Slip control module (ABS/ASC)
(Z3 Versions)
22EIgnition key warning/audible ignition key
warningIgnition switch



INDICATORS










INSTRUMENT CLUSTER
3
GROUND
DISTRIBUTION
0670.4A2w
INSTRUMENT
CLUSTER
HEADLIGHTS/FOG
LIGHTS
6312.0TURN/HAZARD
LIGHTS
6313.0LIGHT SWITCH
DETAILS
6300.0
.35 WS.5 BL/GN
4
.5 BL/BR
X163
.5 GR/RT
X162
19 X16
2 X713
2X118
1X118
1 X713
.5 GE
B16
LEFT FRONT
BRAKE PAD
SENSOR
.5 GE
B17
RIGHT REAR
BRAKE PAD
SENSOR
31
S58
DRIVER’S SEAT
BELT SWITCH
1) BELT UN-
BUCKLED
2) BELT BUCKLED 2 X778
14
1 X778
14 X10017
23
P90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3
GROUND
DISTRIBUTION
0670.4GROUND
DISTRIBUTION
0670.4
.5 BL/VI/GE
F275A








21 1
1515
4521
12 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
ACCESSORYS14
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













INSTRUMENT CLUSTER
INDICATORS
5
X4231
S31
PARK BRAKE
SWITCH
1) BRAKE SET
2) BRAKE NOT
SET
17
.5 BR/GNP90
FRONT POWER
DISTRIBUTION BOX
X203
7 2.5 GN
S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
A2w
INSTRUMENT
CLUSTER 23
6X1712X1721
POWER
DISTRIBUTION
0670.2
CHARGING
SYSTEM
1230.0
2.5 GN
1.5 GN
GROUND
DISTRIBUTION
0670.4
14X10017
1
X209FUSE DETAILS
0670.3
X33
X1100
.5 GN
F275A
2
10 3

2 1
.5 BL


X1682
.5 BR/GN
PARK
BRAKE
A52
SLIP CONTROL
MODULE
(ABS/ASC) 76 X1175
.5 BR/GN
M VERSIONS
X16
31 .5 BL/BR
11
30 .5 GR/SW/GE
DATA LINK
0670.5
.5 WS/GE
11
.5 WS/VI
X1612
RXD TXD
31
!
X17







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

M30
BLOWER MOTOR1.5 GE


POWER, AIR FLOW CONTROL









INTEGRATED HEATING– AND CLIMATE CONTROL
X1001620
8 2.5 GNP90
FRONT POWER
DISTRIBUTION BOX F20
30A
X1429
X582 4
3 2 1 7 X905
X1328716 X58
2 X13233
3 2 1 4 X904
X100547 7 X33
4 X905
S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
1 X209
86
8530
87FUSE DETAILS
0670.3
K4
BLOWER RELAY
2.5 GN/BR
2.5 GN/BR
2.5 BL
2.5 BL
2.5 BL 2.5 GN 1.5 SW1.5 GE
GROUND
DISTRIBUTION
0670.4 GROUND
DISTRIBUTION
0670.4R11
BLOWER
RESISTORS
1) OPENS IF
RESISTORS
OVERHEAT


S75
BLOWER SWITCH
0) OFF
1) SLOW
2) MEDIUM
3) FAST
4) MAXIMUM
POWER DISTRIBUTION
0670.2
X1435
1.5 GE
6450.6-05 X68309
2.5 GN/BR
6450.6-05(PARTIAL)
1.5 GE
2.5 GN/BR
X1280
X9633
2 8 X50
6
X504
K33a
AIR CONDITIONING
RELAY, MOTRONIC30 86
87 85
GROUND
DISTRIBUTION
0670.4
19 X6000
5
6 X20
A6000
ENGINE CONTROL
MODULE (DME) .5 VI/GR
.5 SW/VIX10054
2 X35
X353
X189
6450.6-05
X9633
1.5 GE 2.5 GN/BR .5 SW/VI1.5 SW/VI(PARTIAL)
1 SW/VI
1
2
10
3
210
3 4
M VERSIONS



COMPONENT LOCATION CHART









COMP.8500.0 7100.0LOCATION DESCRIPTION
K6394 COMPRESSOR RELAY . . . . . . . . . . . . . . . . . TIRE INFLATION SYSTEM

K18363
CONVERTIBLE TOP RELAY I (CLOSE) . . .
in LH side of luggage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25-3

K18364 CONVERTIBLE TOP RELAY II (OPEN) . . . in LH side of luggage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-3
L1 . . . . EWS TOROIDAL COIL . . . . . . . . . . . . . . . . . at ignition switch
M2 . . . FUEL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . in fuel tank
M3 . . . WIPER MOTOR . . . . . . . . . . . . . . . . . . . . . . . rear of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-3

M4 . . .
WASHER PUMP . . . . . . . . . . . . . . . . . . . . . . .
front RH side of engine compartment on washer fluid reservoir



M7 . . . HEADLIGHT/FOG LIGHT WASHER PUMP front RH side of engine compartment on washer fluid reservoir
M9 . . . AUXILIARY FAN MOTOR . . . . . . . . . . . . . . . behind front grille
M12 . . DRIVER’S DOOR LOCK MOTOR . . . . . . . . driver’s door
M13 . . PASSENGER’S DOOR LOCK MOTOR . . . passenger’s door

M17 . .

LUGGAGE COMPARTMENT LOCK
MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .

rear side of luggage compartment behind trim panel (ROADSTER)





M17 . .

LUGGAGE COMPARTMENT LOCK
MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .

in lift gate (Z3 COUPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

37-2



M17 . .

LUGGAGE COMPARTMENT LOCK
MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .

in lift gate (M COUPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

46-3



M21 . .
DRIVER’S WINDOW MOTOR . . . . . . . . . . .
in driver’s door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17-2

M23 . . PASSENGER’S WINDOW MOTOR . . . . . . . in passenger’s door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-3
M24y . TILT SUNROOF MOTOR . . . . . . . . . . . . . . . in roof panel


M25 . .

CRUISE CONTROL ACTUATOR
(TEMPOMAT) . . . . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

08-3


M30 . . BLOWER MOTOR . . . . . . . . . . . . . . . . . . . . . rear of engine compartment



COMPONENT LOCATION CHART









COMP.8500.0 7100.0LOCATION DESCRIPTION
P95 . . AUXILIARY FUSE BOX . . . . . . . . . . . . . . . . . below LH side of dash

P97 . .
AUXILIARY FUSE BOX . . . . . . . . . . . . . . . . .
below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19-1

P98 . . FUSE HOLDER IN E–BOX . . . . . . . . . . . . . . rear RH side of engine compartment in E–Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-3
P99 . . FUSE HOLDER . . . . . . . . . . . . . . . . . . . . . . . . in RH side of luggage compartment
R11 . . . BLOWER RESISTORS . . . . . . . . . . . . . . . . . rear of engine compartment behind firewall

R31 . .
AUXILIARY THROTTLE POSITION
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . .
front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

33-3


R6252 THROTTLE POSITION SENSOR . . . . . . . . front of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-3

R6385
THROTTLE POSITION SENSOR/CRUISE
CONTROL ACTUATOR . . . . . . . . . . . . . . .
top LH side of engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

39-2



R8554
RESISTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . .
on cylinder head



S2 . . . . IGNITION SWITCH . . . . . . . . . . . . . . . . . . . . . LH side of dash


S3 . . . .

AUTOMATIC TRANSMISSION RANGE
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . .
center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22-1


S4 . . . . HORN SWITCH . . . . . . . . . . . . . . . . . . . . . . . . on steering wheel
S5 . . . . WIPER/WASHER SWITCH . . . . . . . . . . . . . . LH side of dash RH side of steering column above
S6 . . . . ASC SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . center console

S7 . . . .
COMBINATION SWITCH . . . . . . . . . . . . . . . .
LH side of dash LH side of steering column above



S8 . . . . LIGHT SWITCH . . . . . . . . . . . . . . . . . . . . . . . . LH side of dash
S10 . . FOG LIGHT SWITCH . . . . . . . . . . . . . . . . . . . LH side of dash
S13 . . PASSENGER’S DOOR JAMB SWITCH . . . RH B–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-1
S14 . . DRIVER’S DOOR JAMB SWITCH . . . . . . . . LH B–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-1

S17 . .

MIRROR CONTROL SWITCH . . . . . . . . . . .

in upper LH front door