1998 BMW Z3M ROADSTER Electrical Troubleshooting Manual



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Pin Assignments (4-Cylinder)
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E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
295
Not used
296ATorque converter clutch solenoid valve
control (–)Transmission valve unit
297ASolenoid valve 2 control (–)Transmission valve unit
298MGroundGround point
299Not used
300EGear range signal L1Automatic transmission range switch
301EGear range signal L3Automatic transmission range switch
302Not used
303Not used
304ERPM speed signal TDEngine control module
305Not used
306EOutput speed (+)Transmission valve unit
307Not used
308Not used
309AA-program indicationProgram switch
310EA/C compressor-ON-signalEngine control module
311Not used
312EBrake switch test signalBrake light switch
313Not used
314Not used
315Not used
316AVoltage supplyShift-lock/Transmission valve unit
317EVoltage pressure regulatorTransmission valve unit
318EVoltage supply, terminal 87Engine control module relay
319EVoltage supply, terminal 87Engine control module relay
320Not used
321Not used
322Not used
323Not used
324Not used
325Not used



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Pin Assignments (4-Cylinder)
 !""





E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
326
Not used
327Not used
328Not used
329Not used
330Not used
331Not used
332Not used
333Not used
334Not used
335Not used
336Not used
337Not used
338Not used
339Not used
340Not used
341Not used
342Not used
343Not used
344Not used
345Not used
346E/AJumper plug
347E/AJumper plug
348Not used
349E/ACan-LowEngine control module
350E/ACan-HighEngine control module
351Not used
352E/ATxD diagnostic data linkData link connector






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ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
K6300
ENGINE CONTROL
MODULE RELAY
425V (15)
.5 GE22
.5 TR53A8500
TRANSMISSION
CONTROL MODULE
(EGS)
X63002
1.5 RT/WS
ENGINE CONTROL
SYSTEM MS41.1
(6–CYLINDER M52)
1210.17
X6821
87
4 RT/WS

54
X8500
31
W8505
SHIELD UP TO
10mm BEFORE
ELECTRONIC
TRANSMISSION
OUTPUT SHAFT
SPEED SENSOR
(EGS)
8283
.5 BL
.75 RT
85
85
X600086
86
.35 SW .35 GEA6000
ENGINE CONTROL
MODULE (DME)
X8500
6–CYLINDER
CAN-LOW CAN-HIGH
X8090
X8091
1X202
NOT USED
.35 SW
.35 SW .35 GE .35 GE
CAN-LOW CAN-HIGH

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A8500
TRANSMISSION
CONTROL MODULE
(EGS)
9

327
.5 BL

4 3
.5 VI

332
.5 GN
301
.5 OR
5 6
.5 GR

21 .5 SW
2
14 .5 SW
X8500
8
14
1
.5 RT .5 GE .75 RT


31313131313131
W8505
SHIELD UP TO
10mm BEFORE
ELECTRONIC
TRANSMISSION
OUTPUT SHAFT
SPEED SENSOR
(EGS)
31 15
X8516
X8516
Y8521
TRANSMISSION
VALVE UNIT
1) SOLENOID
VALVE 1
2) SOLENOID
VALVE 2
3) SOLENOID
VALVE 3
6) HYDRAULIC
PRESSURE
REGULATOR
7) TORQUE
CONVERTER
CLUTCH
SOLENOID
VA LV E
8) OIL
TEMPERATURE
SENSOR
9) SPEED
SENSOR DR .5 TR
.75 BR
X8073
2X85054
1 12 9 11 X8505
6 16






SHIFT LOCK, DATA LINK, KICK–DOWN SWITCH
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ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
15
5V (15)
15
25
48 2 34 28 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
.5 GR/BR
.5 BR/VI.5 VI.75 GR/GE
.75 SWAUSF
16 15 X69
X1001832F46
15AP90
FRONT POWER
DISTRIBUTION BOX
X6912
X850010
.5 BL/RT .75 BL/RT
BRAKE LIGHTS
6325.0X181
1.5 BL/RT
X783
S30
BRAKE LIGHT
SWITCH
3) BRAKE PEDAL
DEPRESSED
(TEST)
4) BRAKE PEDAL
RELEASED
(NORMAL) .5 BR/GR
X784
GROUND
DISTRIBUTION
0670.4
2 1 X1178
.5 BR/VI .5 VI
Y19
SHIFT–LOCK
FUSE DETAILS
0670.3
4 3
1 2
–31
X18170
X781
S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED
X782
1 2
88 .5 WS/VI/GE
TXD
DATA LINK
0670.5
GROUND
DISTRIBUTION
0670.4
X6454
52
6–CYLINDER
X6911.5 BR/GR
194X1171
6A52
SLIP CONTROL
MODULE
(ABS/ASC)
.5 WS/GN/GE
.5 WS/GN/GE

ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)





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#""$


A8500
TRANSMISSION
CONTROL MODULE
(EGS)
20 13
.5 GE/BL
3 13
.5 GE/BRX8565
1
24 X69
5 X8503
.5 GE/WS
A
X85032S8503
PROGRAM SWITCH
0) OFF
1) AUTOMATIC
2) MANUAL
GROUND
DISTRIBUTION
0670.4
X1001712P90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3
4527
X8564
E
.5 GE/WS.5 GE/WS .5 GE/BLM
M .5 GE/BR .5 GE/WS
26 X8500
POWER
DISTRIBUTION
0670.2
X6411
6 RT
1RT
ENGINE CONTROL
SYSTEM MS41.1
(6–CYLINDER M52)
1210.17
F2610A
31
&#
15
&#
15
0
2 1
+#$#)
X8500
6–CYLINDER






ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R) !""



#""$


K6300
ENGINE CONTROL
MODULE RELAY
425V (15)
.5 GE22
.5 SW52A8500
TRANSMISSION
CONTROL MODULE
(EGS)
X63002
1.5 RT/WS
ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20
X6821
87
4 RT/WS

54
X8500
31
W8505
SHIELD UP TO
10mm BEFORE
ELECTRONIC
TRANSMISSION
OUTPUT SHAFT
SPEED SENSOR
(EGS)
8283
.5 BL
.5 VI
85
85
X600086
86
.35 SW .35 GEA6000
ENGINE CONTROL
MODULE (DME)
CAN-LOW CAN-HIGH
X8500
76
.35 SW .35 GEA52
SLIP CONTROL
MODULE
(ABS/ASC)
X7845
X7846
1.5 RT/WS
55
53
.5 RT
CAN-LOW CAN-HIGH CAN-LOW CAN-HIGH
1X202.35 GE .35 SW
.35 SW
.35 GE
4–CYLINDER
X1170

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A8500
TRANSMISSION
CONTROL MODULE
(EGS)
9

327
.5 BL

4 3
.5 VI

X11782
332
.5 GN
301
.5 OR
2 .5 BR/VI

21 .5 TR
2
14 .5 SW
X8500
8
1
.5 VI .5 GE .5 VI


31313131313131
W8505
SHIELD UP TO
10mm BEFORE
ELECTRONIC
TRANSMISSION
OUTPUT SHAFT
SPEED SENSOR
(EGS)
31 15
1X8516
X8516
Y8505y
TRANSMISSION
VALVE UNIT
1) SOLENOID
VALVE 1
2) SOLENOID
VALVE 2
3) SOLENOID
VALVE 3
6) HYDRAULIC
PRESSURE
REGULATOR
7) TORQUE
CONVERTER
CLUTCH
SOLENOID
VA LV E
8) OIL
TEMPERATURE
SENSOR
9) SPEED
SENSOR .5 SW
.75 BR
X8073

5 6
.5 GR
31
.5 RT
X1178
.5 VI
15
X69
X6916
.5 BR/VIY19
SHIFT–LOCK DR
14 2 X85054
112 911 16 6 X8505