Page 84 of 382
Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
85
Not used
86Not used
87EBattery voltage, terminal 87Engine control module relay
88E/ATxD diagnosis data linkData link connector
Page 121 of 382

Pin Assignments
E = Input, A = Output, M = Ground
X8500
Pin Type Description/Function Connection
10
Not used
11MGroundShift-lock
12Not used
13ASolenoid valve 3 control (–)Transmission valve unit
14AHydraulic pressure regulator control (–)Transmission valve unit
15Not used
16Not used
17EGear range signal L2Automatic transmission range switch
18EGear range signal L4Automatic transmission range switch
19EBrake pedal positionBrake light switch
20Not used
21Not used
22EManual mode signalProgram switch
23EOutput speed (–)Transmission valve unit
24MGround for shieldShield for speed sensor
25Not used
26Not used
27EKick-down signalKick-down switch
28Not used
29EAutomatic mode signalProgram switch
30EOil temperature signal (–)Transmission valve unit
31EOil temperature signal (+)Transmission valve unit
32Not used
33Not used
34Not used
35EBattery voltageB+ junction point E-box
36AM-program indicationProgram switch
37MGroundGround point
38Not used
39ASolenoid valve 1 control (–)Transmission valve unit
Page 129 of 382

10/993234.02000
A2w
INSTRUMENT
CLUSTER
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM
CONTROL
MODULE
20
A113
SEAT
OCCUPANCY DE-
TECTOR 3234.0-01
F4115A
2112
F275AP90
FRONT POWER
DISTRIBUTION
BOX
34X74
X74
159
A104
BODY
ELECTRONICS
CONTROL
MODULE (ZKE IV)
8
G6
PASSENGER’S AIR
BAG GAS
GENERATOR
13 14
3234.0-01G5
DRIVER’S AIR BAG
GAS GENERATOR
C101
CONTACT RING
10 11
G14
LEFT SIDE AIR
BAG GAS
GENERATOR
16 17
3234.0-01G15
RIGHT SIDE AIR
BAG GAS
GENERATOR
18 19
3234.0-01G12
DRIVER’S SIDE
PYROTECHNICAL
BELT TENSIONER
12
3234.0-00G13
PASSENGER’S
SIDE
PYROTECHNICAL
BELT TENSIONER
34
3234.0-00
B78
DRIVER’S SIDE IM-
PACT SENSORB79
PASSENGER’S
SIDE IMPACT
SENSORS59
PASSENGER’S
SEAT BELT
SWITCHS58
DRIVER’S SEAT
BELT SWITCH
57
3234.0-02 3234.0-023234.0-033234.0-033234.0-03 3234.0-00
D100
DATA LINK
CONNECTOR 3234.0-00
3234.0-006
3234.0-000670.5
TXD
I1008
SEAT MAT 3234.0-01
F425A
33 4026 27
G19
BATTERY SAFETY
TERMINAL
49 50
3234.0-02
POWER
DISTRIBUTION
0670.2
G1
BATTERY
3234.0 SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)
Page 131 of 382
Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
30
Not used
31Not used
32Not used
33AAir bag II (+)Passenger’s air bag gas generator
34ACrash signalBody electronics control module (ZKE IV)
35Not used
36Not used
37Not used
38Not used
39Not used
40AAir bag II (–)Passenger’s air bag gas generator
41Not used
42Not used
43Not used
44Not used
45Not used
46Not used
47Not used
48Not used
49ABattery safety terminal (+)Battery safety terminal
50ABattery safety terminal (–)Battery safety terminal
Page 132 of 382

SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)
X1614
FUSE DETAILS
0670.3
A2w
INSTRUMENT
CLUSTER
10) AIR BAG X16
23
.5 GE/SW.5 GE/BR
1 X7832
G5
DRIVER’S AIR BAG
GAS GENERATOR
C101
CONTACT RING
14
34
.35 BR/SW
6
GROUND
DISTRIBUTION
0670.4
5
FUSE DETAILS
0670.3 22P90
FRONT POWER
DISTRIBUTION BOX
10 11
F275A
7
.5 BR/VI
CA
X10018
F4115A
10
1 X9997
2
R
ABF+ ABF– 31THE DRIVER’S AND
PASSENGER’S
AND THE SIDE AIR
BAG GENERA-
TORS AND THE
PYROTECHNICAL
BELT TENSIONERS
AND THE BATTERY
SAFETY TERMINAL
ARE FITTED WITH
SHORTING
BRIDGES.THE BRIDGES SHORT
THE GENERATOR
LEADS TOGETHER TO
PREVENT UNINTEN-
TIONAL TRIGGERING
OF THE IGNITER
WHEN WORKING ON
THE AIR BAG SYSTEM.
X10017
X132537A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
X74
AWL
G6
PASSENGER’S AIR
BAG GAS
GENERATOR
33 40
3 X7824 .5 WS/SW
.5 WS/BR.5 BL.5 BR
1 X17702
G19
BATTERY SAFETY
TERMINAL
49 50
1 X104672 .5 BL.5 BR
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
X74
.5 GR/SW.5 GR/BR
34
26 27
34
ABF2+ ABF2–
13 14
12 .5 BL/SW
.5 BL/BR
G1
BATTERY
ABBF2+ ABBF2–ABBF+ ABBF–BPT+ BPT–
POWER
DISTRIBUTION
0670.2
50 RT
Z3 ROADSTER
LATE PRODUCTION7.5A
50 RT
Page 133 of 382

.5 RT.5 SW.5 RT.5 SW
910X275910X279
SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)
SIDE AIR BAG
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
.35 WS/BL
20
G14
LEFT SIDE AIR BAG
GAS GENERATOR
16 17
.5 BL .5 BR
1
B78
DRIVER’S SIDE IM-
PACT SENSOR
.5 GE
33
B79
PASSENGER’S
SIDE IMPACT
SENSOR
1X1885
GROUND
DISTRIBUTION
0670.4
25 26
.5 BR
12
G15
RIGHT SIDE AIR
BAG GAS
GENERATOR
1819
.5 GE .5 BR
25 26
.5 BR
12
.5 BLX257
X1883
X256
X1884
X1886
GROUND
DISTRIBUTION
0670.4
21 .35 WS/GE
X1441
THE DRIVER’S AND
PASSENGER’S AND
THE SIDE AIR BAG
GENERATORS AND
THE
PYROTECHNICAL
BELT TENSIONERS
AND THE BATTERY
SAFETY TERMINAL
ARE FITTED WITH
SHORTING
BRIDGES.
.5 GE/RT
G12
DRIVER’S SIDE
PYROTECHNICAL
BELT TENSIONER
12
.5 GE/RT .5 GE/BR
12
.5 GE/BR
1 2
X10214
X10216
THE BRIDGES SHORT
THE GENERATOR
LEADS TOGETHER TO
PREVENT UNINTEN-
TIONAL TRIGGERING
OF THE IGNITER
WHEN WORKING ON
THE AIR BAG SYSTEM.
X1441
.5 GE/RT
G13
PASSENGER’S
SIDE
PYROTECHNICAL
BELT TENSIONER
34
.5 BL/RT .5 BR
12
.5 GE/BR
21
X10215
X10217
X74
DATA LINK
0670.5
X749
.5 WS/VI
Z3 ROADSTER
LATE PRODUCTION
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 281 of 382