Page 199 of 382

Pin Assignments
E = Input, A = Output, M = Ground
X16
Pin Type Description/Function Connection
1
EHigh beam indicator controlCombination switch
2ETerminal 58g, instrument illumination powerLight switch (dimmer)
3ERight turn signal indicator controlHazard flasher relay
4ELeft turn signal indicator controlHazard flasher relay
5Not used
6E/ACAN bus highEngine/slip control module (Z3 Versions)
7E/ACAN bus lowEngine/slip control module (Z3 Versions)
8Not used
9Not used
10Not used
11ADiagnosis RXD signalData link connector (M Versions)
12E/ADiagnosis TXD signalData link connector
13Not used
14EAir bag warning lamp (SRS) controlSupplemental restraint system control
module
15Not used
16E“Check engine” indicator controlEngine control module (DME) (M Versions)
17EPark brake warning lamp controlPark brake switch
18EBrake fluid warning lamp controlBrake fluid level switch
19EBrake pad wear warning lamp controlBrake pad sensors
20ECrankshaft RPM speed signal (TD)Engine control module (DME) (M Versions)
21Not used
22EVoltage supply, terminal 30Front power distribution box, fuse 31
23EVoltage supply, terminal 15 for indicator and
warning lampsFront power distribution box, fuse 27
24MGround supply, terminal 31 for instrument
cluster electronicsGround point
25Not used
26Not used
Page 200 of 382

Pin Assignments
E = Input, A = Output, M = Ground
X17
Pin Type Description/Function Connection
1
ETrailer turn signal indicator controlHazard flasher relay (Z3 Versions Early
Production)
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)
Page 202 of 382
9
.5 SW/RT
INSTRUMENT CLUSTER
INDICATORS
P90
FRONT POWER
DISTRIBUTION BOX
A2w
INSTRUMENT
CLUSTER
2) VEHICLE
SPEED
OUTPUT
10) AIR BAG 23
X172
X1614
.5 BR/VI
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
31
7
14 X10017
X16
X74
FUSE DETAILS
0670.3
F275A
N9
RADIO
10 X18126
A35y
BOARD
COMPUTER
(BC – LOW)
9X10245
A8
CRUISE CONTROL
MODULE
(TEMPOMAT)
16 X22
RA51
WIPER/WASHER
MODULE
5 X285
R
TACHTACH
.5 SW/WS .5 SW/WS .35 SW/WS
.5 SW/WS .5 SW/WS
.5 SW/WS
TACH
10 2
X10464
OUTPUT–SIGNAL
SPEEDOMETER
P90
FRONT POWER
DISTRIBUTION BOX
3
2X10018
X522
FUSE DETAILS
0670.3
F315A
X5221
GROUND
DISTRIBUTION
0670.4
GROUND
DISTRIBUTION
0670.4
24
2
15
X17
Z3 VERSIONS M VERSIONSA18
HIFI AMPLIFIER
1 X10266
.5 SW/WS
X3223
HARMAN KARDON
SOUND SYSTEM .5 SW/WS
31
H10
CHIME MODULE
X188
20 X1717*
* ROADSTER
LATE PRODUCTION
Page 203 of 382
6X275
8X275
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
3
.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
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
M VERSIONS
Z3 ROADSTER
LATE PRODUCTION
Page 204 of 382
A35y
BOARD
COMPUTER
(BC – LOW)
INDICATORS
INSTRUMENT CLUSTER
P90
FRONT POWER
DISTRIBUTION BOX
A2w
INSTRUMENT
CLUSTER
11) FUEL GAUGE
14) SPEEDOMETER
31
416X1622
X173X2714
B10
VEHICLE SPEED
SENSORX3832
X3831
14
FUSE DETAILS
0670.3FUSE DETAILS
0670.3
GROUND
DISTRIBUTION
0670.4
X65003
13
B6y
FUEL SENSOR
X10018232X100176
X17
.5 BR/GE
.5 BR/SWX6500
6.5 BR/SW .5 BR/RT
.5 BR/SW
X805
11
R1/2
FFUSE DETAILS
0670.3
X11291
.5 BR/GE
F235AF4615AF315A
313131
30
7 X10245
.5 BR/GE
Z3 VERSIONS
Page 205 of 382

FUSE DETAILS
0670.3
P90
FRONT POWER
DISTRIBUTION BOX
X16
23
X1001714
INSTRUMENT CLUSTER
A2w
INSTRUMENT
CLUSTER
X9063
2 .5 BR/VI
.5 BR/VI
F275A
2 1
X1123
X9633
GROUND
DISTRIBUTION
0670.4
B18
BRAKE FLUID
LEVEL SWITCH
1) LOW LEVEL
2) NORMAL LEVEL X111
1 .35 BR/VI
2 1
X9633
GROUND
DISTRIBUTION
0670.4
18 X16
BRAKE
FLUID
WITH DSC WITH ASC
2 X9063
4 X10485
X90631
X104858
.5 GR/BR
FUSE DETAILS
0670.3
P90
FRONT POWER
DISTRIBUTION BOX
X100172
F215A
EARLY PRODUCTION
FUSE DETAILS
0670.3
14
F275A
X9633
GROUND
DISTRIBUTION
0670.4
B18
BRAKE FLUID
LEVEL SWITCH
1) LOW LEVEL
2) NORMAL LEVEL
K10485
BRAKE FLUID
LEVEL RELAY
A2w
INSTRUMENT
CLUSTER
BRAKE
FLUID X16
23
1X111
X11121
X9633
GROUND
DISTRIBUTION
0670.4
.35 BR/VIX16
18
WITH DSC WITH ASC
5
X90631X1112B18
BRAKE FLUID
LEVEL SWITCH
1) LOW LEVEL
2) NORMAL LEVEL
LATE PRODUCTION
B18
BRAKE FLUID
LEVEL SWITCH
1) LOW LEVEL
2) NORMAL LEVEL
2
X13004
GROUND
DISTRIBUTION
0670.4
87a
87
6
41 X1746
A65
DYNAMIC STABIL-
ITY CONTROL UNIT
(DSC)
.5 BR/VI
2
88a
A65
DYNAMIC STABIL-
ITY CONTROL UNIT
(DSC)
41 X1746
.5 BR/VI .5 BR/VI
85 86
12
Page 206 of 382
FUSE DETAILS
0670.3
P90
FRONT POWER
DISTRIBUTION BOX
X1623
X1001714
INDICATORS
INSTRUMENT CLUSTER
A2w
INSTRUMENT
CLUSTER
3) ENGINE SPEED
INPUT
7) TACHOMETER
X62321
B6232
ENGINE COOLANT
TEMPERATURE
SENSOR
18X1620
.5 SW .5 BR/VI
3
SPEEDOMETER
31
1112
17
.5 BR/GE
TEMPERATURE
GAUGE
X1047
A52
SLIP CONTROL
MODULE
(ABS/ASC) X1175
B6231
OIL PRESSURE
SWITCH
1) PRESSURE
BETWEEN
0.2–0.5 BAR
2) NORMAL
PRESSURE
X1719
2 X6232
23X20
.5 BR/GN
.5 BR/GE
X6231
1
X17
A837
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS III) 5 X1805TD .35 SWTD .5 BR/RT
.5 BR/RT .5 BR/VI .5 BR/GE
.5 BR/VI
7
X6002
15 .5 WS/GN
X2019
.5 WS/GND100
DATA LINK
CONNECTOR
F275A
RCHECK
ENGINE15
16
1 X6031
.5 GR
.5 GR
2 1
7
X8051X8071X8010
20
20.5 WS/GNX8072X6000
.5 SW
.5 SW20 X20
X8015
.5 SW
TD
.5 SW1
X6002
36
.35 SW
A6000
ENGINE CONTROL
MODULE (DME)D100
DATA LINK
CONNECTOR
M VERSIONS
13
3
.5 GN/RT
46
.5 GN/RT
Page 207 of 382
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