Page 70 of 278
BLOCK DIAGRAM
0670.5 DATA LINK
TXDRXD
D100
DATA LINK
CONNECTOR
CENTRAL BODY
ELECTRONICS
(ZKE IV)
6100.0
INSTRUMENT
CLUSTER
6211.0 BOARD COMPUTER
(BC – LOW)
6581.3
SLIP CONTROL
(ABS/ASC)
3450.1
CRUISE CONTROL
(TEMPOMAT)
6571.0 ELECTRONIC TRANS-
MISSION CONTROL
(EGS A4S 270R)
2460.2
SUPPLEMENTAL
RESTRAINT
SYSTEM (AIR BAG)
3234.0
ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20
DRIVE–AW AY
PROTECTION (EWS III)
6135.1
Page 97 of 278
S30
BRAKE LIGHT
SWITCH
8
S3
AUTOMATIC
TRANSMISSION
RANGE SWITCH
S8503
PROGRAM SWITCHA8500
TRANSMISSION
CONTROL MODULE
(EGS)
L1 L2 L3 L4
54
87
K6300
ENGINE CONTROL
MODULE RELAY 2460.2-02
F285A
26
2460.2-00
36379
TXD
X850088
2460.2-01
48
F2610AP90
FRONT POWER
DISTRIBUTION BOX
204513 2718
S8507
KICK–DOWN
SWITCH 2460.2-043428
##
# #
F4615AP90
FRONT POWER
DISTRIBUTION BOX
10
Y8505y
TRANSMISSION
VALVE UNIT
522 2460.2-03
AM
X8500
X8500
EGSA4S 270R
2460.2-04
5330334322114
N
S
42 15
A6000
ENGINE CONTROL
MODULE (DME) 2460.2-02
8586
A2w
INSTRUMENT
CLUSTER 2460.2-04
25
5552
Y19
SHIFT–LOCK 2460.2-03
2
4046
A52
SLIP CONTROL
MODULE
(ABS/ASC) 2460.2-02
12 17
NOT USED
6
POWER
DISTRIBUTION
0670.2
RXD 87
60
D100
DATA LINK
CONNECTOR
2460.2-04
57
A8
CRUISE CONTROL
MODULE
(TEMPOMAT)
NOT USED
2460.2 ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
Page 98 of 278

Pin Assignments
E = Input, A = Output, M = Ground
X8500
Pin Type Description/Function Connection
89
Not used
90AShift-lock solenoid controlShift-lock
91Not used
92ASolenoid valve band control (–)Transmission valve unit
93AHydraulic pressure regulator control (–)Transmission valve unit
94MGroundGround point
95Not used
96EGear range signal L2Automatic transmission range switch
97EGear range signal L4Automatic transmission range switch
98EBrake pedal positionBrake light switch
99Not used
100ESport mode signalNot used
101EManual mode signalProgram switch
102EOutput speed (–)Transmission valve unit
103MGround for shieldShield for speed sensor
104Not used
105ES-program indicationNot used
106EKick-down signalKick-down switch
107Not used
108EAutomatic mode signalProgram switch
109EOil temperature signal (–)Transmission valve unit
11 0EOil temperature signal (+)Transmission valve unit
111Not used
11 2Not used
11 3AFault indicator signalInstrument cluster
11 4EBattery voltageB+ junction point
11 5EM-program indicationProgram switch
11 6MGroundGround point
11 7Not used
11 8ASolenoid valve 1 control (–)Transmission valve unit
Page 99 of 278

Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
11 9
Not used
120ATorque converter clutch solenoid valve
control (–)Transmission valve unit
121ASolenoid valve 2 control (–)Transmission valve unit
122MGroundGround point
123Not used
124EGear range signal L1Automatic transmission range switch
125EGear range signal L3Automatic transmission range switch
126Not used
127Not used
128ERPM speed signal TDEngine control module
129Not used
130EOutput speed (+)Transmission valve unit
131Not used
132Not used
133EA-program indicationProgram switch
134EA/C compressor-ON-signalEngine control module
135Not used
136EBrake switch test signalBrake light switch
137Not used
138Not used
139Not used
140AVoltage supplyShift-lock/Transmission valve unit
141EVoltage pressure regulatorTransmission valve unit
142EVoltage supply, terminal 87Engine control module relay
143EVoltage supply, terminal 87Engine control module relay
144Not used
145ECruise control signalCruise control module
146Not used
147Not used
148EProgramming voltageData link connector
149Not used
Page 104 of 278
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
9
327
.5 BL
4 11
.5 VI
X11782
332
.5 GN
301
.5 OR
2 .5 BR/VI
21 .5 TR
2
14 .5 SW
X8500
8
1X8505
.5 VI .5 GE .5 VI
31313131313131
W8505
SHIELD UP TO
10mm BEFORE
ELECTRONIC
TRANSMISSION
OUTPUT SHAFT
SPEED SENSOR
(EGS)
31 15
1
X8516
X8516
Y8505y
TRANSMISSION
VALVE UNIT
1) SOLENOID
VALVE 1
2) SOLENOID
VALVE 2
6) HYDRAULIC
PRESSURE
REGULATOR
7) TORQUE
CONVERTER
CLUTCH
SOLENOID
VA LV E
8) OIL
TEMPERATURE
SENSOR
9) SPEED
SENSOR
11) SOLENOID
VALVE BAND .5 SW
.75 BR
X8073
5 6
.5 GR
31
.5 RT
X1178
.5 VI
15
X69
X6916 .5 BR/VI X8505
Y19
SHIFT–LOCK
14 24
112 911 16 6
Page 105 of 278
.5 GR/BR
ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
SHIFT LOCK, DATA LINK, KICK–DOWN SWITCH
15
5V (15)
25
34 6 18 X8500
X85071X69
17 25X16
5A2w
INSTRUMENT
CLUSTER
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
S8507
KICK–DOWN
SWITCH
1) NORMAL
2) ACCELERATOR
PEDAL FULLY
DEPRESSED GROUND
DISTRIBUTION
0670.4 .5 GR/BR
.75 GR/GE
1.5 SWAUSF
X1001832F46
15AP90
FRONT POWER
DISTRIBUTION BOX
X6912
10.5 BL/RT .75 BL/RT
BRAKE LIGHTS
6325.0X181
1.5 BL/RT
FUSE DETAILS
0670.3
1 2
31
S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED
87 .5 WS/GE
RXD88 .5 WS/VI
TXD
DATA LINK
0670.5
GROUND
DISTRIBUTION
0670.4
X781
2 1
2X78
60 .75 WS/GNX8500
X6454
28
GROUND
DISTRIBUTION
0670.4
F275A
23 X16
FUSE DETAILS
0670.3
X1001714
48
X78
3X69
11 .5 BR/GR
43
.5 BR/GR
4 X78
GROUND
DISTRIBUTION
0670.4
X173
57
7 14 .35 GE/BR
S30
BRAKE LIGHT
SWITCH
3) BRAKE PEDAL
DEPRESSED
(TEST)
4) BRAKE PEDAL
RELEASED
(NORMAL)
.35 GE/BR
A8
CRUISE CONTROL
MODULE
(TEMPOMAT) X22
!
Page 122 of 278
INPUT DETAILS
5126.0 ZKE CENTRAL LOCKING (ZV)
34 X74
.35 BR/SW 14 X10015
S47
DRIVER’S DOOR
LOCK SWITCH
0) OFF
3) CENTRAL
ARREST 2 X747
X7471
.5 WS/RT
X257
10
.35 WS/RTF7
5A
30
31
10 X10018
F3525A
31
LIGHT SWITCH
DETAILS
6300.0
.5 GR/SW
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV) X449
S49
PASSENGER’S
DOOR LOCK
SWITCH
0) OFF
3) CENTRAL
ARREST 2 X742
X7421
.5 WS/RT
X256
10
.35 WS/RT
.5 WS/GE
DATA LINK
0670.5.5 WS/VI
7 X13253
RXD TXD
911 13 1810 2 X10182
FUSE DETAILS
0670.3
.35 WS/RT
31 17 .5 WS/RT/GE
9
X13253
N12w
ANTI–THEFT
CONTROL MODULE
(ALPINE)
X13025
X13252
X10182
GROUND
DISTRIBUTION
0670.4
X10010
5
31
POWER
DISTRIBUTION
0670.2
X2X0
0
30
3
S302
CENTRAL LOCKING
SWITCH
0) OFF
1) LOCKED 4 X1292
X12921
.35 RT/GN/GE
0
1
31 19
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
3
LIGHT SWITCH
DETAILS
6300.0
.35 GR/RT
2FUSE DETAILS
0670.3
X13253
P90
FRONT POWER
DISTRIBUTION BOX
GROUND
DISTRIBUTION
0670.4
X13006
POWER
DISTRIBUTION
0670.2
31X13168
.5 WS/RT/GE
10 RT
.35 RT/GN
Page 123 of 278

X10182
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
S3
AUTOMATIC
TRANSMISSION
RANGE SWITCH
0) OFF (LOW)
1) ON (HIGH)
F315AF285A
ELECTRONIC
TRANSMISSION
CONTROL
(EGS A4S 270R)
2460.2
50 1
2
FUSE DETAILS
0670.3X10017
X5115 16
X511
7X450
.5 BR/SW
.5 BR/SW
15
GROUND
DISTRIBUTION
0670.4P90
FRONT POWER
DISTRIBUTION BOX
2
1S2
IGNITION SWITCH
0) OFF
1) ACCESSORY
2) RUN
3) START
8
A837
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS III) X18053
.5 BL/RT/GE 2.5 SW/GEX209
4
7 X1805
2.5 SW/GE
18 X20
14
.35 GN
7
.5 SW/VI
10 X6000
A6000
ENGINE CONTROL
MODULE (DME)
1) DRIVE–AW AY
PROTECTION2.5 SW/GE
X6510M6510
STARTER
01
5
20
.5 SW
80
X20
X8015
.5 SW .5 SW
X1047.35 SWTD
INSTRUMENT
CLUSTER
6211.0
TD
X173
DRIVE–AWAY PROTECTION
ZKE CENTRAL LOCKING (ZV)
8 X33
2.5 GN/SW
X132534
50
3130 VR
DWA
X10018
13
.5 SW/GN
15
N12w
ANTI–THEFT
CONTROL MODULE
(ALPINE)
10 X13025
.5 BL/RT/GE
X191
S235
STARTER
IMMOBILIZATION
SWITCH
1) NORMAL
2) CLUTCH PEDAL
FULLY
DEPRESSED
F457.5A
X10018
X189943 30
2
.35 BR/SW12
X18994
WITH EGS WITHOUT EGS
1
GROUND
DISTRIBUTION
0670.4
2
10
3
FUSE DETAILS
0670.3 FUSE DETAILS
0670.3.5 BL/RT/GE
X144 .5 BL/RT/GE
31