1999 BMW M3 Electrical Troubleshooting Manual

SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)






X1614
X1426
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
FUSE DETAILS
0670.3
A2w
INSTRUMENT
CLUSTER
10) AIR BAG X1623
.5 BL/SW
.5 GE/SW.5 GE/BR
1 X7832
G5
DRIVER’S AIR BAG
GAS GENERATOR
.5 BR.5 BLC101
CONTACT RING
DATA LINK
0670.5
.5 WS/VI X10017
14
TXD
79
12 X9997
.5 BL/SW
G6
PASSENGER’S AIR
BAG GAS
GENERATOR
13 14
.5 BL/SW .5 BL/BRX74
X745
FUSE DETAILS
0670.3 24P90
FRONT POWER
DISTRIBUTION BOX F42
7.5A
10 11F275A
31
10
G13
PASSENGER’S
SIDE
PYROTECHNICAL
BELT TENSIONER
34
.5 BL/RT .5 BL/BR
G12
DRIVER’S SIDE
PYROTECHNICAL
BELT TENSIONER
12
.5 GE/BR .5 GE/RT
.5 GE/BR .5 GE/RT1 X11290
21 X78221 X112892
12 X1021612 X10217
.5 BL/RT .5 BL/BRX10018

SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)




A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
FUSE DETAILS
0670.3
.35 WS/BL
P90
FRONT POWER
DISTRIBUTION BOX
X1001824
20
G14
LEFT SIDE AIR BAG
GAS GENERATOR
16 17
.5 BL .5 BR
1
2 X1885B78
DRIVER’S SIDE IM-
PACT SENSOR
F427.5A
.5 GE
33
B79
PASSENGER’S
SIDE IMPACT
SENSOR
1
7
.35 VI/GN
X1885
GROUND
DISTRIBUTION
0670.4.5 GE
25 26
.5 BR
12
.5 BR
12
G15
RIGHT SIDE AIR
BAG GAS
GENERATOR
1819
.5 GE .5 BR
25 26
.5 BR
12
.5 BR
12
.5 BL
.5 BLX257
X11335
X1883
X256
X11336
X1884
6 X74
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
X13253
.35 BR/SW
34 X74.35 VI/GN
2 X1886
X1886GROUND
DISTRIBUTION
0670.4
X7421 .35 WS/GE
X13009
THE DRIVER’S AND
PASSENGER’S AND
SIDE AIR BAG GEN-
ERATORS 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.
X13009
X1441
GROUND
DISTRIBUTION
0670.4


SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)





F427.5A
8
A2w
INSTRUMENT
CLUSTER
P90
FRONT POWER
DISTRIBUTION BOXF275A
14
.35 VI/GN14 X17
X10017
FUSE DETAILS
0670.3
23 X16
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
.5 BL/RT/WS.5 BL/VI/GE
X1315
24X10018
FUSE DETAILS
0670.3
43 X18518
1 X18518
S59
PASSENGER’S
SEAT BELT SWITCH
3
12X74
.5 BL/GN/GE
4X7782
S58
DRIVER’S SEAT
BELT SWITCH
1X778
GROUND
DISTRIBUTION
0670.4
X13009
.35 VI/GN
GROUND
DISTRIBUTION
0670.4
.5 BL/VI/GE







X102181
3
12
15 X74
2 X10218
X13009
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULEGROUND
DISTRIBUTION
0670.4
A113
SEAT OCCUPANCY
DETECTOR
I1008
SEAT MAT X91009
FUSE DETAILS
0670.3
24 X10018
.5 WS/RT
F427.5AP90
FRONT POWER
DISTRIBUTION BOX

SUPPLEMENTAL RESTRAINT SYSTEM (AIR BAG)





35
F215A
14
3450.1-01
3450.1-00 K10
ABS RELAY
Y1w
ABS HYDRAULIC
UNITP90
FRONT POWER
DISTRIBUTION BOX
K125
ABS PUMP MOTOR
RELAY, TIMED
A52
SLIP CONTROL
MODULE
(ABS/ASC)
32 X1171
19X1171
RXD
TXD 8
7
S123
ABS PEDAL TRAV-
EL SENSOR


F1030AF275A
A2w
INSTRUMENT
CLUSTER
2165049524436
S30
BRAKE LIGHT
SWITCH F38
30AF4615A
311
3450.1-00
3450.1-01
3450.1-00 3450.1-00
21
M93
AUXILIARY
THROTTLE
POSITION MOTOR
(ADS) 3450.1-022023 42
R31
AUXILIARY
THROTTLE
POSITION SENSOR 3450.1-04 43
30 48
B2
LEFT FRONT
SPEED SENSOR –
ABS 3450.1-0346 29
B4
LEFT REAR SPEED
SENSOR – ABS 3450.1-0347 11
B1
RIGHT FRONT
SPEED SENSOR –
ABS 3450.1-0345 10
B3
RIGHT REAR
SPEED SENSOR –
ABS 3450.1-033525426
A6000
ENGINE CONTROL
MODULE (DME) 3450.1-04
6
A8500
TRANSMISSION
CONTROL MODULE
(EGS) 3450.1-04
39551718372254403451
F1030AF215A
S6
ASC SWITCH 3450.1-02
27
LIGHT SWITCH
DETAILS
6300.0
33
V7
ASC DIODE 3450.1-00
13
58g
15
3450.1-02
X1171
A7000
TRANSMISSION
CONTROL MODULE
(EGS)
S29
BRAKE LIGHT
SWITCH
41
323i, 328i, M3
M3

3450.1 SLIP CONTROL (ABS/ASC)



F215A
3450.1-06
3450.1-05
Y1
ABS HYDRAULIC
UNITP90
FRONT POWER
DISTRIBUTION BOX
K125
ABS PUMP MOTOR
RELAY, TIMED
A52
SLIP CONTROL
MODULE
(ABS/ASC)
17 X1170
41 X11395
TXD 36


F1030AF275A
A2w
INSTRUMENT
CLUSTER
4228311
S30
BRAKE LIGHT
SWITCH F46
15A
19
3450.1-05
3450.1-05
32 11
B2
LEFT FRONT
SPEED SENSOR –
ABS 3450.1-0834 13
B4
LEFT REAR SPEED
SENSOR – ABS 3450.1-0833 12
B1
RIGHT FRONT SPEED
SENSOR – ABS 3450.1-0835 14
B3
RIGHT REAR SPEED
SENSOR – ABS 3450.1-0876
A6000
ENGINE CONTROL
MODULE (DME) 3450.1-07A8500
TRANSMISSION
CONTROL MODULE
(EGS)3450.1-07
2232425262227295
F215A
S6
ASC SWITCH 3450.1-07
39
LIGHT SWITCH
DETAILS
6300.0
4043450.1-07
58g
X1170
318i
15
2
F3830A
4
37
X1170X11395X11395
223X1170
M93
AUXILIARY
THROTTLE
POSITION MOTOR
(ADS)
13X11395X1170
9308
R6255
ACCELERATOR
PEDAL POSITION
SENSOR (ASC) 3450.1-05 X1170
SLIP CONTROL (ABS/ASC)





Pin Assignments

323i, 328i, M3





E = Input, A = Output, M = Ground
X1171
Pin Type Description/Function Connection
1
MGroundGround
2EBattery voltageABS relay
3MGroundGround
4EIgnition cut-off signalDME module
5AEML signalDME module
6ATransmission influenceTransmission control module
7E/ATxD signalDiagnostic link
8ARxD signalDiagnostic link
9Not used
10ASensor groundABS speed sensor rear right
11ASensor groundABS speed sensor front right
12Not used
13AABS power protection relayABS power protection relay
14EPedal travel sensorPedal travel sensor
15ARight rear speed signalDME module
16EPlus supplyABS relay
17ASolenoid valve signal left rear inletABS hydraulic unit
18ASolenoid valve signal left rear outletABS hydraulic unit
19MGroundGround
20AADS step motor (–)ADS step motor
21AADS step motor (+)ADS step motor
22ASolenoid valve signal right front inletABS hydraulic unit
23EASC throttle flap potentiometer (–)ASC throttle flap motor potentiometer
24Not used
25EIdle speed signalDME module
26AThrottle flap positionDME module
27EASC switch signalASC witch
28Not used
29ASensor groundABS speed sensor rear left
30ASensor groundABS speed sensor front left




Pin Assignments

323i, 328i, M3





E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
31
EPedal travel sensorPedal travel sensor
32EBrake signalBrake light switch
33EPlus supplyABS relay
34AABS lamp controlInstrument cluster
35EIgnition signalFuse 21
36ASeparator valveABS hydraulic unit
37ASolenoid valve signal right front outletABS hydraulic unit
38Not used
39ARight rear inlet valveABS hydraulic unit
40ASolenoid valve signal left front inletABS hydraulic unit
41ESpeed signalDME module
42EASC throttle flap potentiometer (+)ASC throttle flap potentiometer
43EASC throttle flap signalASC throttle flap potentiometer
44AASC lamp controlInstrument cluster
45ESpeed sensor signal rear rightSpeed sensor rear right
46ESpeed sensor signal rear leftSpeed sensor rear left
47ESpeed sensor signal front rightSpeed sensor front right
48ESpeed sensor signal front leftSpeed sensor front left
49EPump motor sensor signalABS hydraulic unit
50EShield pump motor sensorABS hydraulic unit
51EPlus supplyFront power distribution box
52AABS pump motor relayABS pump motor relay
53Not used
54ASolenoid valve signal left front outletABS hydraulic unit
55ARight rear outlet valveABS hydraulic unit