1998 BMW M3 Electrical Troubleshooting Manual

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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 2460.2-06
F285A
2625
2460.2-00
36379
RXD
TXD 87
X8500
88
2460.2-03
48
F2610AP90
FRONT POWER
DISTRIBUTION BOX 2460.2-00
1327
NOT USED20 4518
S8507
KICK–DOWN
SWITCH346
" / 
 
 
 
 +
 /
 "
 
X6410
B+ JUNCTION
POINT
F4615AP90
FRONT POWER
DISTRIBUTION BOX
N4
ON–BOARD
COMPUTER
10
MA
X8500
A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II)S29
BRAKE LIGHT
SWITCH N10
MULTI–FUNCTION
CLOCK EGS
19A52
SLIP CONTROL
MODULE
(ABS/ASC) 2460.2-06
A6000
ENGINE CONTROL
MODULE (DME) 2460.2-06
4012 17
NOT USED
K19
COMPRESSOR
CONTROL RELAY
4685
A4S 310R
2460.2-00
2460.2-03
A2w
INSTRUMENT
CLUSTER
2460.2-02
85
21530 33 4 32
Y8505
TRANSMISSION
VALVE UNIT
Y8521
TRANSMISSION
VALVE UNIT
2525314
60828357A8
CRUISE CONTROL
MODULE
(TEMPOMAT) 2460.2-06
2460.2-01
A8
CRUISE CONTROL
MODULE
(TEMPOMAT)2460.2-032460.2-05 2460.2-04 2460.2-05 2460.2-04
2460.2-05 2460.2-04
DATA LINK
0670.5
428628
2460.2-02
A52
SLIP CONTROL
MODULE
(ABS/ASC)
2460.2-02
318is WITH ASC2460.2-05 2460.2-04318is Y19
SHIFT–LOCK
2460.2-07 2460.2-012460.2-05 2460.2-04
323i, 328i318is
55
318is328i328i WITH ASC
X8500
1522
PGS
2460.2-02
A35
ON–BOARD
DISPLAY
318is X6411
W8516
SHIELD UP TO
10mm BEFORE
ELECTRONIC
TRANSMISSION
OUTPUT SHAFT
SPEED SENSOR
(EGS)
W8516
SHIELD UP TO
10mm BEFORE
ELECTRONIC
TRANSMISSION
OUTPUT SHAFT
SPEED SENSOR
(EGS)
2460.2 ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)



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Pin Assignments
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E = Input, A = Output, M = Ground
X8500
Pin Type Description/Function Connection
177
Not used
178AShift-lock solenoid controlShift-lock
179Not used
180ABand solenoidTransmission valve unit (318is)
4ASolenoid valve 3 control (–)Transmission valve unit (328i)
181AHydraulic pressure regulator control (–)Transmission valve unit
182MGroundGround point (318is)
183Not used
184EGear range signal L2Automatic transmission range switch
185EGear range signal L4Automatic transmission range switch
186EBrake pedal positionBrake light switch
187Not used
188ESport mode signalNot used
189EManual mode signalProgram switch
190EOutput speed (–)Transmission valve unit
191MGround for shieldShield for speed sensor
192Not used
193AS-program indicationNot used
194EKick-down signalKick-down switch
195EASC signalASC module (328i)
196EAutomatic mode signalProgram switch
197EOil temperature signal (–)Transmission valve unit
198EOil temperature signal (+)Transmission valve unit
199Not used
200Not used
201AFault indicator signalInstrument cluster
202EBattery voltageB+ jump start junction point
203AM-program indicationProgram switch
204MGroundGround point
205Not used


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Pin Assignments
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E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
206
ASolenoid valve 1 control (–)Transmission valve unit
207Not used
208ATorque converter clutch solenoid valve
control (–)Transmission valve unit
209ASolenoid valve 2 control (–)Transmission valve unit
210MGroundGround point
211Not used
212EGear range signal L1Automatic transmission range switch
213EGear range signal L3Automatic transmission range switch
214Not used
215Not used
216ERPM speed signal TDEngine control module (318is)
217Not used
218EOutput speed (+)Transmission valve unit
219Not used
220Not used
221AA-program indicationProgram switch
222EA/C compressor-ON-signalEngine control module (318is)
223Not used
224EBrake switch test signalBrake light switch
225Not used
226Not used
227Not used
228AVoltage supplyShift-lock/Transmission valve unit (318is)
52AVoltage supplyShift-lock (328i)
229EVoltage pressure regulatorTransmission valve unit
230EVoltage supply, terminal 87Engine control module relay
231EVoltage supply, terminal 87Engine control module relay (318is)
232Not used
233ECruise control signalCruise control module
234Not used
235Not used


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Pin Assignments
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E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
236
EProgramming voltageData link connector
237Not used
238Not used
239Not used
240Not used
241Not used
242Not used
243Not used
244Not used
245Not used
246Not used
247Not used
248Not used
249Not used
250Not used
251Not used
252Not used
253Not used
254Not used
255Not used
256Not used
257Not used
258E/AJumper plug(328i)
259E/AJumper plug(328i)
260Not used
261E/ACan-LowEngine control module
262E/ACan-HighEngine control module
263ARxD diagnostic data linkData link connector (318is)
264E/ATxD diagnostic data linkData link connector

.5 GE/BL10 RT





POWER, PROGRAM SWITCH
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ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
151515
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
20 13X8500
12
.5 GE/BL
3 13
NOT USED .5 GE/BLX8565
1
24 22 X69
5
X8503
.5 GE/WS .5 GE/GN
X85032S8503
PROGRAM SWITCH
0) OFF
1) AUTOMATIC
2) MANUAL
GROUND
DISTRIBUTION
0670.4
X1001712F26
10AP90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3
23
452717
X8564X8576
.5 GE/WS .5 GE/GN.5 GE/WS .5 GE/GN .5 GE/BL
X10012
31
0
2 1
3131
.35 GE/GR .5 GE/WSNOT USED
AM
.5 GE/BR
X850026
X6411
POWER
DISTRIBUTION
0670.2
31
318is318is
1 RT
X6410318is

54 1.5 RT/WS
K6300
ENGINE CONTROL
MODULE RELAY
4 RT/WSX6300287ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20X6821
X8500





POWER
ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R) $%%


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A8500
TRANSMISSION
CONTROL MODULE
(EGS)
2 14
.5 TR
.5 SW

6
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
W8516
SHIELD UP TO 10mm
BEFORE ELECTRONIC
TRANSMISSION
OUTPUT SHAFT SPEED
SENSOR (EGS)W8516
SHIELD UP TO 10mm
BEFORE ELECTRONIC
TRANSMISSION
OUTPUT SHAFT
SPEED SENSOR (EGS)X8500
22 42
14
12 16
X8500
21 4 14 151 X8516
2 X8516
.5 GE
X8505
.5 VI.5 SW
X8505
Y8505
TRANSMISSION VALVE UNIT
1) SOLENOID VALVE 1
2) SOLENOID VALVE 2
3) HYDRAULIC PRESSURE
REGULATOR
4) BAND SOLENOID
5) TORQUE CONVERTER
CLUTCH SOLENOID
VA LV E
6) SPEED SENSOR
7) OIL TEMPERATURE
SENSOR

9
33 .5 GN

11
30 .5 OR
2
52
.5 VI
3

6
5 .5 GR
53
4 .5 RT
5

1
32
.5 BL
55 1.5 RT/WS
X8073
318is
.5 VI
.75 BR
15
5V (15)
2460.2-04

31
7
3131313131313131

31




 $%%ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)


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X8500
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
46

36 .5 SW/BL
X8056
15
CAN LOW
.5 SW/BL
85
X51
5K19
COMPRESSOR
CONTROL RELAY
.5 SW/BL
X20
4
.5 SW/BL

31A6000
ENGINE CONTROL
MODULE (DME) TD
X600080
X8015
INSTRUMENT
CLUSTER
6211.0.5 SW
.5 SW
318is
A8
CRUISE CONTROL
MODULE
(TEMPOMAT)X227
.35 GE/BR
X6914
57
15
.35 GE/BR
40
85
X7846
.35 SW
.35 SW
85
CAN LOWCAN HIGH
86 X7845
.35 GE
.35 GE
86
CAN HIGH
CAN LOW
A52
SLIP CONTROL
MODULE
(ABS/ASC)
CAN HIGH
X1170
X20
.5 GE
.35 GE.5 BR
.35 SW2
16 7

ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
1TWO–DOOR
5TWO–DOOR 9
31313131




GEAR SELECTOR SWITCH
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P90
FRONT POWER
DISTRIBUTION BOX F28
5AF2610A
L4L3L2 L1A8500
TRANSMISSION
CONTROL MODULE
(EGS) 9 37 8 36 X8500
86 74
.5 BR/WS.5 BL/WS.5 BR/SW .5 BL/SW
X5113
1 BL/GES3
AUTOMATIC
TRANSMISSION
RANGE SWITCH
0) OFF (LOW)
1) ON (HIGH)
2) CLOSED IN
REVERSE
2 X5115
L4 L3 L2 L1
R
E46
LEFT LUGGAGE
COMPARTMENT
LIGHT ASSEMBLY
6
X319
4
X191
21 20 19 X6918
A8
CRUISE CONTROL
MODULE
(TEMPOMAT)X22
.35 BR/SW .5 BR/SW1 BL/GE
.5 BR/WS .5 BL/WS .5 BR/SW .5 BL/SW.5 BR/SW
L1 L2 L3 L4
P
R
N
D
3
2
11101
1000
1110
0001
0011
1011
0010
4 X13
GROUND
DISTRIBUTION
0670.4
H27
LEFT BACK UP
LIGHT X319
FUSE DETAILS
0670.3
01
X13006
01010102
16X1001712EGS A4S 270R
E82
TRANSMISSION
POSITION INDICA-
TOR LIGHT 2
X1193
1 .5 GR/RT
X1193
GROUND
DISTRIBUTION
0670.4
X10012
LIGHT SWITCH
DETAILS
6300.0 58g
X1019
.5 GR/RT
FUSE DETAILS
0670.3
A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II) X1659
5