x181 BMW 318is 1998 E36 Electrical Troubleshooting Manual




SYMBOLS $%%




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1.5 BR DATA LINK
0670.5 .5 WS/GE
0670.0-030670.0-02
1.5 BRN9
RADIO
THE COMPLETE
WIRE PROGRES-
SION AND FUR-
THER CIRCUITS
CONNECTED TO
GROUND X497 ARE
SHOWN IN CELL
”0670.4 GROUND
DISTRIBUTION” AT
GROUND X497
THE COMPLETE
WIRE PROGRES-
SION AND FUR-
THER CIRCUITS
CONNECTED TO
FUSE 18 ARE
SHOWN IN CELL
”0670.3 FUSE
DETAILS” AT FUSE
18
CURRENT PATH IS
CONTINUED AS
LABELED P90
FRONT POWER
DISTRIBUTION BOX F18
15A
GROUND
DISTRIBUTION
0670.4
N1
ANTI–THEFT
CONTROL MODULE
(DWA) FUSE DETAILS
0670.3A1
GENERAL MODULE
X252
17X332
2
CIRCUIT REF-
ERENCE–A WIRE
WHICH CONNECTS
TO ANOTHER CIR-
CUIT
A2
INSTRUMENT
CLUSTER
X16
11RXD
ARROW SHOWS
DIRECTION OF
CURRENT FLOW
AND IS REPEATED
WHERE CURRENT
PATH CONTINUES
X497
X1812615
X491




FUSES 8 AND 9
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FUSE DETAILS
P90
FRONT POWER
DISTRIBUTION BOX
K2
HORN RELAY 6 X56
F815A
16
6133.0
F920A
18 X10015
N9
RADIO 9 X18126
1.5 RT/WS 2.5 RT/WS
30
A18
HIFI AMPLIFIER 1 X605
6510.1
X19513
1.5 RT/WS
2.5 RT/WS
6510.1 1 RT/GR/GE
N9
RADIO
6510.04 X322
2.5 RT/WS
9 X18126
1.5 RT/WSSTEREO,
6–SPEAKER
SYSTEMHIFI, TOP HIFI
4 X322
2.5 RT/WS

FUSE 31
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FUSE DETAILS
P90
FRONT POWER
DISTRIBUTION BOX F31
5A
X1067





X152725
A115
AUTOMATIC
CLIMATE CONTROL
MODULE
Y4
WATER VALVE
ASSEMBLY.5 RT/GE .5 RT/GE
X107018
6213.2
X1622
A2w
INSTRUMENT
CLUSTER
6211.0
X5223
H10
CHIME MODULE
6213.2X851
N10
MULTI–FUNCTION
CLOCK
X100546 .75 RT/GE
.5 RT/GE .5 RT/GE .5 RT/GE.5 RT/GE
6581.2
6450.7X18160
X100182
6214.0A35
ON–BOARD
DISPLAY
X16595
A836
ELECTRONIC
IMMOBILIZER
CONTROL MODULE
(EWS II)
1240.0 .5 RT/GE
5126.0
6135.0
X354
.5 GE1 RT/GE
6450.7
X10718
N4
ON–BOARD
COMPUTER
6581.2 .35 RT/GEX11551
N5
ANALOG CLOCK
6213.1 .5 RT/GE

FUSES 40, 41, AND 42
 $%%FUSE DETAILS




X6035
S51
DRIVER’S SEAT,
SEAT CONTROL
SWITCH
5200.0 2.5 RT/GEF40
30A
20
X536
K22
HIGH SPEED
RELAY
6450.7F41
30A
22
X1421
X2752 2.5 RT/GE
2.5 RT/GE4 RT/GN
2.5 RT/GE




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X18195
X130442
N24
ROLLOVER
SENSOR
5430.1 .75 VI/GN
X745
A12
SUPPLEMENTAL
RESTRAINT
SYSTEM CONTROL
MODULE
3234.0
F427.5A
24
X1427
.5 VI/GN
X1263
.5 VI/GNP90
FRONT POWER
DISTRIBUTION BOX
X6523
S52
DRIVER’S SEAT
LUMBAR SWITCH
5200.0 2.5 RT/GE323i, 328i
M3
X18862
B79
PASSENGER’S
SIDE IMPACT
SENSOR
3234.0 .35 VI/GN
X18852
B78
DRIVER’S SIDE
IMPACT SENSOR
3234.0 .35 VI/GN
X185184
S59
PASSENGER’S
SEAT BELT SWITCH
3234.0 .35 VI/GN
.35 VI/GN.5 VI/GN .5 VI/GN
X10018
X102181
A113
SEAT OCCUPANCY
DETECTOR
3234.0X7784
S58
DRIVER’S SEAT
BELT SWITCH
3234.0

FUSE 44
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FUSE DETAILS
P90
FRONT POWER
DISTRIBUTION BOX F44
15A
X10022





1.5 VI/SW
M4
WASHER PUMP
6160.1
X1071 1 VI/SW
X1001828
N9
RADIO
6510.1X181265 1.5 VI/WS
6510.0
X3222 1.5 VI/SW
E42
GLOVE BOX LIGHT
6332.1X18336
1 .5 VI/SWA64
WIPER/WASHER
MODULE (LOW II)
A51
WIPER/WASHER
MODULE 6160.1X2858 .5 VI/SW
TWO–DOOR
FOUR–DOOR

(PARTIAL)
X7091 X710
1
.75 BR X638
1





X6036S51
DRIVER’S SEAT,
SEAT CONTROL
SWITCH
X7131B17
RIGHT REAR
BRAKE PAD
SENSOR
2.5 BRM2
FUEL PUMP.5 BRX352
1S14
DRIVER’S DOOR
JAMB SWITCH
X13007
.5 BRX840
2.5 BR
E44
RIGHT LICENSE
PLATE LIGHT
E43
LEFT LICENSE
PLATE LIGHT
X2751 2.5 BR
2.5 BR
.75 BR





GROUND X13006
 $%%%%&GROUND DISTRIBUTION
1 BRX400
2
E40
RIGHT REAR
INTERIOR LIGHT
2) INTERIOR
LIGHT
3) READING
LIGHT
.75 BR
X47702
1M55z
DRIVER’S SEAT
LUMBAR SUPPORT
MOTOR/VALVEX1813531.5 BR1.5 BR
0670.4-17
TELEPHONE
CONNECTOR
LUGGAGE
COMPARTMENTX1292
3
S302
CENTRAL LOCKING
SWITCH
0670.4-19
32X4771
.75 BR .75 BR .35 BR
23E39
LEFT REAR
INTERIOR LIGHT
2) INTERIOR
LIGHT
3) READING
LIGHT
.75 BR
3
TWO–DOOR ONLY
2 3

6–SPEAKER
SYSTEM1.5 BR
GROUND DISTRIBUTION
GROUNDS X13009, X13016, AND X18723
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1 BR/OR
X10759A4
CHECK CONTROL
MODULE
.5 BR/OR
X13009





X6053A18
HIFI AMPLIFIERX18126
15N9
RADIO
2.5 BR
X13016
2.5 BRX824
X13011
X130253N12w
ANTI–THEFT
CONTROL MODULE
(ALPINE)
.75 BR/OR
1.5 BR
X12401S125
LEFT REAR DOOR
CONTACTX12391S124
RIGHT REAR DOOR
CONTACT
X102182A113
SEAT OCCUPANCY
DETECTOR
.5 BR/OR.5 BR/OR .5 BR/OR
X7781S58
DRIVER’S SEAT
BELT SWITCH
X185181S59
PASSENGER’S
SEAT BELT SWITCH
.35 BR/OR .35 BR/OR
B78
DRIVER’S SIDE
IMPACT SENSOR
X18851
B79
PASSENGER’S
SIDE IMPACT
SENSOR
X18861.35 BR/OR
.35 BR/OR
X18723
CONVERTIBLE




SHIFT LOCK, DATA LINK, KICK–DOWN SWITCH
 $%%


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ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
15
5V (15)
15
25
48 234 6 X8500
25X16
5A2w
INSTRUMENT
CLUSTER
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
GROUND
DISTRIBUTION
0670.4 .5 GR/BR
.5 GR/BR
.5 BR/VI .5 VI
AUSF
16 15
X1001832F46
15AP90
FRONT POWER
DISTRIBUTION BOX
X6912
X850010.5 BL/RT .75 BL/RT
BRAKE LIGHTS
6325.0X181
1.5 BL/RT
RN4
ON–BOARD
COMPUTER
N10
MULTI–FUNCTION
CLOCK
X10701
.35 BR/GR
X10090
X783
S30
BRAKE LIGHT SWITCH
3) BRAKE PEDAL
DEPRESSED (TEST)
4) BRAKE PEDAL
RELEASED (NORMAL) .35 BR/GR
X784
GROUND
DISTRIBUTION
0670.4
2 1 X1178
.5 BR/VI .5 VI
.35 BR/GR
Y19
SHIFT–LOCK
FUSE DETAILS
0670.3
4 3
–31
X173
X781
S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED
X782
1 2
88 .5 WS/VI
TXD
87 .5 WS/GE
RXD
DATA LINK
0670.5
GROUND
DISTRIBUTION
0670.4 .5 BR/GR
2460.2-01
318is
60 .75 WS/GN
28
GROUND
DISTRIBUTION
0670.4
X6454
A35
ON–BOARD
DISPLAY
11
///
18
X8507
1X69
17
S8507
KICK–DOWN
SWITCH
1) NORMAL
2) ACCELERATOR
PEDAL FULLY
DEPRESSED .75 GR/GE
1.5 SW
1 2




SHIFT LOCK, DATA LINK, KICK–DOWN SWITCH
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ELECTRONIC TRANSMISSION CONTROL (EGS A4S 270R)
15
5V (15)
15
25
48 2
18X8500
X85071X69
17 25X16
5A2w
INSTRUMENT
CLUSTER
A8500
TRANSMISSION
CONTROL MODULE
(EGS)
S8507
KICK–DOWN
SWITCH
1) NORMAL
2) ACCELERATOR
PEDAL FULLY
DEPRESSED .5 GR/BR
.5 GR/BR
.5 BR/VI .5 VI .75 GR/GE
1.5 SWAUSF
16 15
X1001832F46
15AP90
FRONT POWER
DISTRIBUTION BOX
X6912
X850010.5 BL/RT .75 BL/RT
BRAKE LIGHTS
6325.0X181
1.5 BL/RT
RN4
ON–BOARD
COMPUTER
N10
MULTI–FUNCTION
CLOCK
X10701
.35 BR/GR
X10090
X783
S30
BRAKE LIGHT SWITCH
3) BRAKE PEDAL
DEPRESSED (TEST)
4) BRAKE PEDAL
RELEASED (NORMAL) .35 BR/GR
X784
GROUND
DISTRIBUTION
0670.4
2 1 X1178
.5 BR/VI .5 VI
.35 BR/GR
Y19
SHIFT–LOCK
FUSE DETAILS
0670.3
4 31 2
–31
X173
X781
S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED
X782
1 2
88 .5 WS/VI
TXD
87 .5 WS/GE
RXD
DATA LINK
0670.5
.5 BR/GR
2460.2-01
323i, 328i
60 .75 WS/GN
A35
ON–BOARD
DISPLAY
11
/
34 28
GROUND
DISTRIBUTION
0670.4
GROUND
DISTRIBUTION
0670.4
X6454
/

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ELECTRONIC TRANSMISSION CONTROL (EGS A5S 310Z)
28 X700034A7000
TRANSMISSION
CONTROL MODULE
(EGS)
GROUND
DISTRIBUTION
0670.4
X6454
.35 SWA6000
ENGINE CONTROL
MODULE (DME)
85X6000
60
60 X7000
X6860
.5 GN/BL
.5 GN/BL 85.35 GE
86 86
57
.5 GE/BR
A8
CRUISE CONTROL
MODULE
(TEMPOMAT) 7
18
X6002D100
DATA LINK
CONNECTOR
X22
14 X69
.35 GE/BR
P90
FRONT POWER
DISTRIBUTION BOX
X1001832
.75 BL/RT
X181
10.5 BL/RT
12
1.5 BL/RT
X782
1 X78
S30
BRAKE LIGHT
SWITCH
1) BRAKE PEDAL
RELEASED
2) BRAKE PEDAL
DEPRESSED F46
15A
BRAKE LIGHTS
6325.0 FUSE DETAILS
0670.3CANCA–L CANCA–H
1.5 BR 1.5 BR/OR
1 2
15
3131
X69
.5 GN/BL
48
.5 BR/GR
11
.35 BR/GR
R
S30
BRAKE LIGHT
SWITCH
3) BRAKE PEDAL
DEPRESSED
(TEST)
4) BRAKE PEDAL
RELEASED
(NORMAL)
1
3 X78
.35 BR/GR
4 3
GROUND
DISTRIBUTION
0670.4
X10090
.35 BR/GR
X784
X173
X1070
N4
ON–BOARD
COMPUTER
N10
MULTI–FUNCTION
CLOCK
A35
ON–BOARD
DISPLAY