BMW Z3M ROADSTER 1998 E36 Electrical Troubleshooting Manual






ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20
 !""ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)



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15A8500
TRANSMISSION
CONTROL MODULE
(EGS)
18
X8507
1 17
S8507
KICK–DOWN
SWITCH
1) NORMAL
2) ACCELERATOR
PEDAL FULLY
DEPRESSED .75 GR/GE
.75 SW
634
GROUND
DISTRIBUTION
0670.4
X69
A6000
ENGINE CONTROL
MODULE (DME)
36 46
.5 SW/BL80 40
.5 SWX8500
2888
.5 WS/VI
TXD
10 .5 BL/RT2525X16
5A2w
INSTRUMENT
CLUSTER
.5 GR/BR
.5 GR/BR
X8500
DATA LINK
0670.5
X6000
TD X8015
AC
X8056
.5 SW
.5 SW/BL
X6912
30
&#
2
11
48
S30
BRAKE LIGHT
SWITCH
3) BRAKE PEDAL
DEPRESSED
(TEST)
4) BRAKE PEDAL
RELEASED
(NORMAL)X783
4 3
X784
.5 BR/GR
.5 BR/GR
GROUND
DISTRIBUTION
0670.4
3030
&#
X181
P90
FRONT POWER
DISTRIBUTION BOX
F4615A
X1001832
S30
BRAKE LIGHT SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSEDX781
1 2
X782
.75 BL/RT 1.5 BL/RT
FUSE DETAILS
0670.3
+( '
15
BRAKE LIGHTS
6325.0
+#$#)
4–CYLINDER

ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)





 !""



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A8500
TRANSMISSION
CONTROL MODULE
(EGS)
20 13X8500
12
.5 GE/BL
3 13
.5 GE/BL
NOT USED .5 GE/BLX8565
1
24 22 X69
5 X8503
.5 GE/WS .5 GE/GN
A
X85032S8503
PROGRAM SWITCH
0) OFF
1) AUTOMATIC
2) MANUAL
GROUND
DISTRIBUTION
0670.4
X1001712P90
FRONT POWER
DISTRIBUTION BOX
FUSE DETAILS
0670.3
23
452717
X8564X8576
ES
.5 GE/WS .5 GE/GN.5 GE/WS .5 GE/GN .5 GE/BLM
M
.5 GE/BR .5 GE/WS
26 X8500
POWER
DISTRIBUTION
0670.2
X6410
6 RT
1RT
ENGINE CONTROL
SYSTEM (DME M5.2,
4–CYLINDER M44)
1210.20
F2610A
31
&#
15
&#
15
&#
15
NOT USED
0
2 1
+#$#)
4–CYLINDER

ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)

 !""



#""$


P90
FRONT POWER
DISTRIBUTION BOX
L4 L3 L2 L1
A8500
TRANSMISSION
CONTROL MODULE
(EGS) 9 37 8 36 X8500
86 74
.5 BR/WS.5 BL/WS.5 BR/SW .5 BL/SW
X5113S3
AUTOMATIC
TRANSMISSION
RANGE SWITCH
0) OFF (LOW)
1) ON (HIGH)
2) CLOSED IN
REVERSE
2 X5115
L4 L3 L2 L1
R
E16
LEFT REAR LIGHT
ASSEMBLY
5 X319
21
20 19 X6918
A8
CRUISE CONTROL
MODULE
(TEMPOMAT)25 X22
9 X1659A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II).5 BR/SW
.5 BR/WS .5 BL/WS .5 BR/SW .5 BL/SW.5 BR/SWFUSE DETAILS
0670.3
L1 L2 L3 L4
P
R
N
D
3
2
11 101
1 000
1 110
0 001
0 011
1 011
0 010
H27
LEFT BACK UP
LIGHT
16X1001712
X1169
1 BL/GEFUSE DETAILS
0670.3
1 BL/GE
L2 L2
.5 BR/SW






F285AF2610A
1 00101012 0
31313131
X191
2 X18994
.35 BR/SW
NOT USED

 !""
#""$
A2w
INSTRUMENT
CLUSTER
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE20
A113
SEAT OCCUPANCY
DETECTOR 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
3234.0-00
G13
PASSENGER’S
SIDE
PYROTECHNICAL
BELT TENSIONER
34
3234.0-00
B78
DRIVER’S SIDE
IMPACT SENSORB79
PASSENGER’S
SIDE IMPACT
SENSORS59
PASSENGER’S
SEAT BELT SWITCHS58
DRIVER’S SEAT
BELT SWITCH
57
3234.0-03 3234.0-033234.0-023234.0-023234.0-02 3234.0-00
D100
DATA LINK
CONNECTOR 3234.0-00
3234.0-006
3234.0-000670.5
TXD
I1008
SEAT MAT 3234.0-01
F2410A
S559
PASSENGER’S AIR
BAG CUT–OFF
SWITCH
3234.0-01
F425A
3234.0 SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)







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Pin Assignments
 !""

E = Input, A = Output, M = Ground
X74
Pin Type Description/Function Connection
1
APyrotechnical belt tensionerDriver’s side pyrotechnical belt tensioner
2APyrotechnical belt tensionerDriver’s side pyrotechnical belt tensioner
3APyrotechnical belt tensionerPassenger’s side pyrotechnical belt
tensioner
4APyrotechnical belt tensionerPassenger’s side pyrotechnical belt
tensioner
5EPower supplyFront power distribution box, fuse 41
6MGroundGround point
7AAir bag warning indicatorInstrument cluster
8EBelt switchPassenger’s seat belt switch
9E/ATxD diagnostic data lineData link connector
10AAir bag (+)Driver’s air bag gas generator
11AAir bag (–)Driver’s air bag gas generator
12EBelt switchDriver’s seat belt switch
13AAir bag (+)Passenger’s air bag gas generator
14AAir bag (–)Passenger’s air bag gas generator
15ESeat occupancy detectorSeat occupancy detector
16AGas generatorGas generator, left side air bag
17AGas generatorGas generator, left side air bag
18AGas generatorGas generator, right side air bag
19AGas generatorGas generator, right side air bag
20EImpact sensorDriver’s side impact sensor
21EImpact sensorPassenger’s side impact sensor
22Not used
23Not used
24Not used
25Not used
26Not used
27Not used
28Not used
29Not used







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Pin Assignments
 !""

E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
30
Not used
31Not used
32Not used
33Not used
34ACrash signalBody electronics control module (ZKE IV)
35Not used
36Not used
37Not used
38Not used
39Not used
40Not used
41Not used
42Not used
43Not used
44Not used
45Not used
46Not used
47Not used
48Not used
49Not used
50Not used






SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG) !""


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X1614
FUSE DETAILS
0670.3
A2w
INSTRUMENT
CLUSTER
10) AIR BAG X16
23
.5 GE/SW.5 GE/BR1 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 .5 BR.5 BL
R
ABF+ ABF– 31THE DRIVER’S
AND PAS-
SENGER’S AND
THE SIDE AIR
BAG GENERA-
TORS AND THE
PYROTECHNIC
AL BELT TEN-
SIONERS ARE
FITTED WITH
SHORTING
BRIDGES.THE BRIDGES
SHORT THE
GENERATOR
LEADS
TOGETHER TO
PREVENT
UNINTEN-
TIONAL TRIG-
GERING OF
THE IGNITER
WHEN WORK-
ING ON THE AIR
BAG SYSTEM.
X10017
X132537A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
X74
AWL
.5 GE/RT.5 GE/BR1 X102142
G12
DRIVER’S SIDE
PYROTECHNICAL
BELT TENSIONER
12
1 X102162 .5 GE/RT
.5 GE/BR
.5 BL/RT.5 BL/BR1 X102152
G13
PASSENGER’S
SIDE
PYROTECHNICAL
BELT TENSIONER
34
1 X102172 .5 GE/RT
.5 GE/BR
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
X74

625
62
34
314






SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG) !""


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FUSE DETAILS
0670.3 24FUSE DETAILS
0670.3 8P90
FRONT POWER
DISTRIBUTION BOX
F425A
15 .5 WS/RT
X10017
F2410A
3
A113
SEAT OCCUPANCY
DETECTOR
SBE
4
5
12
GROUND
DISTRIBUTION
0670.4
S559 *
PASSENGER’S AIR
BAG CUT–OFF
SWITCH
1) PASSENGER’S
AIR BAG
SWITCHED ON
2) PASSENGER’S
AIR BAG
SWITCHED OFFX10218
2
1X10218
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
GROUND
DISTRIBUTION
0670.4
X10018
3
6 12212
G6
PASSENGER’S AIR
BAG GAS
GENERATOR
13 14
1 X7822 .5 BL/SW.5 BL/BR
ABBF+ ABBF–
1
X19565
* THE ORIGINAL
JUMPER IS
OPTIONALLY
REPLACED BY
THE SWITCH
S559. X74
.5 BL/SW .5 BL/RRX74
X19565
+#$#)+##
.5 BL/SW .5 BL/RR
12
X91009
I1008
SEAT MAT
51 X19565
6 2 X19565
EARLY PRODUCTION






SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG) !""


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4
FUSE DETAILS
0670.3 22P90
FRONT POWER
DISTRIBUTION BOX
+##
X10018
F4115A
DATA LINK
0670.5
.5 WS/VI
TXD
X74
X185181
14 X17
A2w
INSTRUMENT
CLUSTER
8
.5 BL/WS/GE
3
12
GROUND
DISTRIBUTION
0670.4
S59
PASSENGER’S
SEAT BELT SWITCH
1) BELT
UNBUCKLED
2) BELT BUCKLED
1 2
12
.5 BR/GN/WS
3
X7781
S58
DRIVER’S SEAT
BELT SWITCH
1) BELT
UNBUCKLED
2) BELT BUCKLED
GROUND
DISTRIBUTION
0670.4
X18518NOT USED
2.5 BL/VI/GE
GKBF GKFA12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
2 X778
NOT USED
4
NOT USED
9
X74
FUSE DETAILS
0670.3






SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)
SIDE AIR BAG
 !""


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A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
FUSE DETAILS
0670.3
.35 WS/BL
P90
FRONT POWER
DISTRIBUTION BOX
X10018
22
20
G14
LEFT SIDE AIR BAG
GAS GENERATOR
16 17
.5 BL .5 BR
1
2 X1885B78
DRIVER’S SIDE
IMPACT SENSOR
F4115A
.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
X74
.5 VI/BL
2 X1886
X1886
GROUND
DISTRIBUTION
0670.4
X7421 .35 WS/GE
X10010
THE DRIVER’S AND
PASSENGER’S AND
THE SIDE AIR BAG
GENERATORS AND
THE
PYROTECHNICAL
BELT TENSIONERS
ARE FITTED WITH
SHORTING
BRIDGES.THE BRIDGES
SHORT THE
GENERATOR
LEADS TOGETHER
TO PREVENT
UNINTENTIONAL
TRIGGERING OF
THE IGNITER
WHEN WORKING
ON THE AIR BAG
SYSTEM.
X10010
.5 VI/BL
LATE PRODUCTION