Page 106 of 357

Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Signal Type
9
Not used
10AEKPActivate relayFuel pump relay
11AOELDOil pressure signalInstrument cluster
12Not used
13Not used
14Not used
15Not used
16Not used
17ATDCrankshaft RPM speed signal TDInstrument cluster
18Not used
19ERFLReverse signalReversing light switch/ Automatic
transmission range switch
20Not used
21AA-OELNOil level signalThermal oil level sensor (TOENS)
control module
22EDFAHRSpeed signal right rearABS/ASC control module
23EKUPPClutch signalClutch switch
24EKL 54 ONBrake signalBrake light switch
25Not used
26E15A26Terminal 15Fuse 26
27EMFLCruise control signalCruise control interface
28ES_BLTSBrake signalBrake light switch
29AS_KORELActivate relayCompressor control relay
30ALDPVActivate valveLeakage diagnosis pump
31Not used
32E/ATXDIITXD diagnosis data linkData link connector
33ES_DWADrive-away protection signal (code)Electronic immobilizer control
module (EWS III)
34ELDPSLeakage signalLeakage diagnosis pump
35M31GroundCruise control interface
36E/ACAN+CAN bus highInstrument cluster,
ABS/ASC control module
Page 108 of 357
ENGINE CONTROL SYSTEM MS42.1 (6–CYLINDER M52)
X6300
POWER
2 6
1.5 RT
1.5 RT/WS
4 RT/WS
4 RT
X6300
237 X6000126 X8500
4
K6300
ENGINE CONTROL
MODULE RELAYG6400
B+ JUNCTION
POINT E–BOX
A6000
ENGINE CONTROL
MODULE (DME) 85 30
87
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
1 RTX64101
21X641022
POWER
DISTRIBUTION
0670.2
F20230AF20430A5
X8680F20320A
P98
FUSE HOLDER IN
E–BOX
15
8
4 RT/WS
6
4 RT/WS/GE
X86804
89 X60001
1515
1 RT/WS/GE 1.5 RT/WS/GE 2.5 RT/WS/GE
X6960
FUSE DETAILS
0670.3
X60002
.5 BR/WS
Z3 VERSIONS
Page 116 of 357
ENGINE CONTROL SYSTEM MS42.1 (6–CYLINDER M52)
6
11191 .5 BL
A8500
TRANSMISSION
CONTROL MODULE
(EGS)A6000
ENGINE CONTROL
MODULE (DME) X6000422 21 X1170
A52
SLIP CONTROL
MODULE
(ABS/ASC)
.5 BR/GN
6
X8500
88X60002
4
86 .35 GE3
85
.35 SW .5 WS/VI
X1894
.35 WS/GN
G6509
GENERATOR
13
X6524
2 .5 BL
26
X6231
1X60003
.5 BR/GN
B6231
OIL PRESSURE
SWITCH
1) PRESSURE
BETWEEN
0.2–0.5 BAR
2) NORMAL
PRESSURE11
.5 GE 10.5 BR
20
366
17 .5 SW
.5 GE
377
A2w
INSTRUMENT
CLUSTER
14
FUSE DETAILS
0670.3
F275A
X10017
P90
FRONT POWER
DISTRIBUTION BOX
23
X1893
32 X60004
.5 WS/VI
X600217
D100
DATA LINK
CONNECTOR X16
X17X16.5 BR
.5 GE .5 SW
X1047X213
.5 BL
TD CAN + CAN –
CAN + CAN –TXD2 TXD2
D+
CAN + CAN –TXD2
15
INSTRUMENT
CLUSTER
6211.0CHARGING
SYSTEM
1230.0
.5 BR
12
CAN + CAN –
CAN –CAN +
Z3 VERSIONS
Page 118 of 357

ENGINE CONTROL SYSTEM MS42.1 (6–CYLINDER M52)
1
6
FUSE DETAILS
0670.3
P90
FRONT POWER
DISTRIBUTION BOX
4 X51
FUSE DETAILS
0670.3
2 X515
.75 SW
.5 SW/BL
K19
COMPRESSOR
CONTROL RELAY
1
Y2
AIR CONDITIONING
COMPRESSOR
1) NORMAL
TEMPERATURE
2) HIGH
TEMPERATURE
30 86
87 85
X163
X1001818X1001612
F397.5AF165A
2
X1001712
F2610A
X85112
S8511
REVERSING LIGHT
SWITCH
1) OPEN
2) CLOSED IN R
21
X5112
S3
AUTOMATIC
TRANSMISSION
RANGE SWITCH
0) OFF (LOW)
2) CLOSED IN RE-
VERSE
20
A6000
ENGINE CONTROL
MODULE (DME)
3523
X121
1X60004
.35 BL/BR
2919
FUSE DETAILS
0670.3
GROUND
DISTRIBUTION
0670.4
27655
GROUND
DISTRIBUTION
0670.4
4 X60001
X6454
GROUND
DISTRIBUTION
0670.4X1212.5 BR/OR
1 X85113 X511
6 X60005
GROUND
DISTRIBUTION
0670.4
X6456
BACK UP LIGHTS
6322.0X1169X1169
1 BL/GE1 BL/GE
1 BL/GE
X60004
S32
CLUTCH SWITCH
1) NORMAL STATE
2) CLUTCH PEDAL
DEPRESSED 12.35 BL/SW
X10010
WITH EGS WITHOUT EGS
3131313131 WITH EGS WITHOUT EGS
X1017012
A9008
CRUISE CONTROL
INTERFACE
Z3 VERSIONS
X60213.75 BL/GE
Page 123 of 357
5 X209S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
X209
4
START
.5 BR/SW16
5 X511
P90
FRONT POWER
DISTRIBUTION BOX
4 RT
L2S3
AUTOMATIC
TRANSMISSION
RANGE SWITCH
0) OFF (LOW)
1) ON (HIGH)
X511
7
2.5 SW/GE
8 X33
FUSE DETAILS
0670.3
ELECTRONIC
TRANSMISSION
CONTROL
(EGS A4S 270R)
2460.2
7
1
GROUND
DISTRIBUTION
0670.4
2.5 GN/SW
FUSE DETAILS
0670.32
82
A837
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS III)
X1805
X10018
2.5 SW/GE
F315A
1 0
F285A
210
3
X1001830
3 X18994
S235
STARTER
IMMOBILIZATION
SWITCH
1) NORMAL
2) CLUTCH PEDAL
FULLY
DEPRESSED 2FUSE DETAILS
0670.3
12
F457.5A
1X18994
GROUND
DISTRIBUTION
0670.4 X1805
.35 BR/SW
3
X191
WITH EGS WITHOUT EGS
.5 BR/SW
F10650A
Z3 VERSIONS
G7512
B+ JUNCTION
POINT
X1981
X191
1 X33
POWER
DISTRIBUTION
0670.2X10017
.5 BR/SW
Page 126 of 357
S30
BRAKE LIGHT
SWITCH
8
S3
AUTOMATIC
TRANSMISSION
RANGE SWITCH
S8503
PROGRAM SWITCHA8500
TRANSMISSION
CONTROL MODULE
(EGS)
L1 L2 L3 L4
54
P98
FUSE HOLDER IN
E–BOX 2460.2-00
F285A
26
2460.2-03
36379
2460.2-08
F2610AP90
FRONT POWER
DISTRIBUTION BOX 2460.2-03
204513 2718
S8507
KICK–DOWN
SWITCH 2460.2-023428
&& & &
F4615AP90
FRONT POWER
DISTRIBUTION BOX 2460.0-04
10
Y8521
TRANSMISSION
VALVE UNIT
522 2460.2-01
AM2460.2-02
X8500
X8500
EGS
Y19
SHIFT–LOCK 2460.2-02
252
A4S 270R
G6400
B+ JUNCTION
POINT E–BOX2460.2-03
2460.2-02
5330334322114
N
S
42 15
A2w
INSTRUMENT
CLUSTER 2460.2-02
8886
F20430A
POWER
DISTRIBUTION
0670.2
85
A6000
ENGINE CONTROL
MODULE (DME) 2460.2-00TXD2
TXD2
D100
DATA LINK
CONNECTOR
A52
SLIP CONTROL
MODULE
(ABS/ASC) 2460.2-02
TXD2
2460.2 ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
Page 127 of 357

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 128 of 357
Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
40
Not used
41ATorque converter clutch solenoid valve
control (–)Transmission valve unit
42ASolenoid valve 2 control (–)Transmission valve unit
43MGroundGround point
44Not used
45EGear range signal L1Automatic transmission range switch
46EGear range signal L3Automatic transmission range switch
47Not used
48Not used
49Not used
50Not used
51EOutput speed (+)Transmission valve unit
52Not used
53Not used
54AA-program indicationProgram switch
55Not used
56Not used
57Not used
58Not used
59Not used
60Not used
61AShift-lock solenoid controlShift-lock
62AVoltage solenoid valvesTransmission valve unit
63EVoltage supplyFuse 204
64Not used
65Not used
66Not used
67Not used
68Not used
69Not used
70Not used