GENERAL
This
section
contains
wiring
diagrams
for
1992
through
1998
BMW
3
Series
models
.
WARNING
-
On
cars
equipped
with
airbags,
special
precautions
apply
to
any
electrical
testing
or
repair
.
The
airbag
unit
is
an
explosive
device
and
must
be
handled
with
exterme
care
.
Before
starting
any
work
onan
airbag
equipped
car,
refer
to
the
warnings
and
cau-
tions
in
720
Seatbelts
and
721
Airbag
Systems
(SRS)
.
NOTE-
The
"
gear
position/neutral
safetyswitch
is
also
some-
timesreferred
to
as
the
automatic
transmission
range
switch
.
"
The
EWS
11
system
is
also
sometimes
referred
to
as
the
Driveaway
Protection
System
or
the
electronic
im-
mobilization
system
.
ELECTRICAL
WIRING
DIAGRAMS
ELE-1
Electrical
Wiring
Diagrams
GENERAL
.
.
.
.
.
.
.
.
.
................
.
.
.
ELE-1
Horns
.....
.
.....
.
.
.
....
.
.
.
.
.
...
.
.
ELE-153
Instrument
Panel
.
.
.
.
.
.
..............
ELE-165
ELECTRICAL
WIRING
DIAGRAMS
...
.
.
.
ELE-2
Interior
Lights/Illumination
.............
ELE-211
ABS
..............
.
.
.
.....
.
.....
ELE-117
Lumbar
Control
.
....................
ELE-247
ABS/AST
.............
.
.
.
...
.
.
.
.....
ELE-120
On-Board
Computer
..................
ELE-173
Airbag
(Supplemental
Restraint
System)
..
ELE-140
Park
Ventilation
.
.
.
...........
.
...
.
..
ELE-139
Air
Conditioning
and
Heating
.
.
.
.
.
.
.....
ELE-129
Power
Distribution
......
.
...
.
.
.
.
.
.
.
...
.
ELE-2
Anti-Theft
(Alpine)
..........
.
.
.
...
.
...
ELE-144
Power
Door
Locks
.
.
......
.
.
.
.
.
.
.
.
.
..
ELE-226
Anti-Theft
(EWS
II)
.
........
.
.
.
...
.
...
ELE-150
Power
Mirrors
...
.
.
.
......
.
.
.
.
.
.
.
.
.
..
ELE-241
Body
Computer
Module
.....
.
.....
.
...
ELE-176
Power
Seats
......
.
......
.
.
.
...
.
.
.
..
ELE-243
Charging
System
.
.
................
.
.
.
ELE-67
Power
Sunroof
.
.
.
.
.
.
.
...............
ELE-248
Convertible
Top
.
.
.
.
................
.
.
ELE-253
Power
Windows
.
.
.
.
.
.
.....
.
.........
ELE-231
Cruise
Control
..
.
.
.
...........
.
....
.
.
ELE-112
Radio/Cassette/CD/Speakers
..........
ELE-255
Data
Link
Connector
................
.
.
.
ELE-86
Rear
Window
Defogger
...............
ELE-160
Engine
Cooling
.......
.
.......
.
....
.
.
.
ELE-94
Shift
Interlock
.
.
.
.
.
.
.
.
...............
ELE-110
Engine
Management
...
.
.......
.
....
.
.
.
ELE-70
Starting
....
.
.
.
.
.
...
.
................
ELE-63
Exterior
Lights
........
.
.
.
.
.
.
.
.
.
......
ELE-194
Transmission
Electronics
.
..............
ELE-96
Ground
Distribution
....
.
.
.
.
.
.
.
.
.
.......
ELE-35
Warning
System
:
Chimes
.............
ELE-178
Headlights/Foglights
...
.
.
.
.
.
.
.
.
.
......
ELE-180
Wiper/Washer
.
.....
.
...............
ELE-155
Heated
Seats
........
.
.
.
.
.
.
.
.
.
......
ELE-245
ELECTRICAL
COMPONENT
LOCATIONS
Relayand
fuse
positions,
ground
locations
...........
.
.
.
.
.
.
.
.
.
................
seeRepair
Group
610
CAUTION-
Always
switchthe
ignition
off
and
disconnect
the
negative
(-)
battery
cablebefore
removing
any
electrical
components
.
"
Prior
to
disconnecting
the
battery,
read
the
bat-tery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
viii
.
"
Connect
and
disconnect
ignition
system
wires,
multiple
connectors
and
ignition
test
equipment
leads
only
while
ignition
is
switched
off
.
-Always
switch
a
test
meter
to
the
appropiate
func-
tion
and
range
before
making
test
connections
.
"
All-Season
Traction
(AST)
is
also
referred
to
as
ASC
or
ASC+T
.
GENERAL
ELE-18
ELECTRICAL
WIRING
DIAGRAMS
RED
FROM
RED
FROM
D
FRONT
POWER
~H
FRONTPOWER
DISTRIBUTION
BOX
DISTRIBUTION
BOX
(DIAGRAM2OF5)
jl
(DIAGRAM2OF5)
-
--
I
.Sl
-
O
-
NLY
------------------------------------------
DISTRIBUTION
BOX
FUSE
F10
I
30A
I
I
FUSE
L
1995ONLY
FUSE
FUSE
FUSE
I
Ffi
F7
FB
F9
20A
SA
15A20A
'
Tw
q
RED/YEL
Power
Distribution
1996-97
Except
318ti
(5
of
5)
I
i
I
-
I
I
I
I
I
F',F',
I
i
F',F',
I
-
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i
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i
I
-
v
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i
l
i
I
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I
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I
II
I
I
I
I
II
11
II
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
11
I
I
I
I
II
I
,
I
L-1
!
_I
!
_I
!
_l
!
_I
!
_I
L-1
!-IL-1
L-1
L-1
L-1L-1
L-1
1
-1
L-1
!-IL-1
L-1
REAR
LEFT
RIGHT
LEFT
RIGHT
TRUNK
CONVERTIBLE
TRUNK
TRUNK
CONVERTIBLE
BODY
CENTRAL
HORN
RADIO
HIFI
ASS
SLIP
ABS
ABS
DEFOGGER
DOOR
DOOR
DOOR
DOOR
LOCK
TOPCONTROL
LID
LID
TOPSTORAGE
ELECTRONICS
LCOKING
RELAY
AMPLIFIER
CONTROL
CONTROL
RELAY
PUMP
RELAY
LOCKLOCKLOCKLOCK
MOTORMODULE
MICRO-
RELAY
LIDLOCK
CONTROL
SWITCH
MODULE
MODULE
MOTOR
SWITCH
SWITCH
MOTORMOTOR
SWITCH
MOTOR
MODULE
RELAY
(1996)
_________________________________________-]PRONTPOWER
I
FROM
I
DISTRIBUTION
BOX0
FUSEF34
I
FUSE
FUSE
FUSE(DIAGRAM
II
t
J
F31
F32
133
5OF5)
II
SA
30A
t
0A
I
L
------------
__
.__
-----------
____
...
.
----------
F
-,
I
.I
F
-,
F
-,
III
I
II
I
II
I
I
I
I
I
I
I
I
I
I
I
I
___I
L-1
I-_I
L-1
L-1
L-1
L-1
WATER
AUTOMATIC
ELECTRONIC
CHIME
ON-BOARD
MULTI-
INSTRUMENTVALVE
CLIMATE
IM
MOB
ILIZER
MODULE
COMPUTER
FUNCTION
CLUSTER
AS
SSEMBLYCONTROL
CONTROL
(1997)
CLOCK
MODULEMODULE
G
FRONT
CIGAR
LIGHTER
FROM
RED
FRONTPOWER
G
DISTRIBUTIONBOX
(DIAGRAM
2
OF
5)
r
I
TO
O
I
FRONTPOWER
FUSE
F33
DISTRIBUTION
I
(DIAGRAM
FUSE
FUSE
FUSE
FUSE
FUSE
I
I
5
OF5)
F34
F35
F36
F3T
F3W
I
25----------
______
_____
328,
M3
I
315
ALL
BODY
TRUNK
TELEPHONE
CD
FRONT
CANADA
USA
WIASC
W/ASC
W/ABS
ELECTRONICS
LIGHT
TRANSCEIVER
CHANGER
DOME/MAP
I
CONTROL
(1996)
LIGHT
MODULE
ASSEMBLY
(ZKEIV)
I
-
i
I
-
i
I
I
1"!
1"!
I
I
I
-
j
1'l--I
1
-
-
i
I
II
I
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I
I
II
_I
L-1
L-1
!
_I
1
__
j
1
__
J
1
__
j
1
__
j
1
-
1
CRASH
HAZARD
CONVERTIBLE
BOO
Y
WIPER
WIPER/
LIGHT
ABS
SLIP
ABS
CONTROL
FLASHER
TO
PCoNTROL
ELECTRONICS
RELAY
WASHER
SWITCH
PUMP
CONTROL
CONTROL
MODULE
RELAY
MODULECONTROL
MODULE
(USA)
MOTORMODULE
MODULE
(1996)
MODULE
RELAY
WW983
(ZKEIV)
W/HIFI
,
ALL
-
I
32
B,
M3
318
TEN
WIASS
I
WIASC
IN
ABC
SPEAKER
SYSTEM
'7
-
I
I
I
I
I
I
OBD11
II
II
I
II
CENTER
CONNECTOR
CONSOLE
TEL
PHONE
L-1
I
_I
L-1
CONNECTOR
LIGHT
CHARGING
IGNITION
SWITCH
SOCKET
SWITCH
Il
1
20
of
01
~
1
.1
.1
'
I
41
11
III
...
I
II
II
I
I
III
LUGGAGE
I
I
I
I
I
I
I
I
I
I
COMPARTMEN
I
-_I
ELEPHONE
CONNECTOR
TOFUSEF16
GGRN
(DIAGRAM
4
OF
5)
TOFUSEF28
HGRN
(DIAL
RAM
4
OF
5)
TOFUSEF24
GRN
(DIAGRAM
4
OF
5)
10437
2
F
-
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L-1
L
I
D
I
_I
ENGINECONTROL
UNLOADER
INSTRUMENTUNCOUPLING
BLOWERNo
DULE(DME)
RELAY
CLUSTER
DIODE
RELAY
1
I
FUSE
I
F44
I
154
v__-----__---------
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---____--aaa-r
====
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.
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I-
I
I,\
I
CONSOLE
I
I
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II
I
III
TELEPHONE
I1
GLOVEBOX
I
I
I
CONNECTOR
I
LIGHT
LEFT
RIGHT
SEAT
FIGHT
LEFT
ROLLOVER
SUPPLEMENTAL
FRONTFRONT
OCCUPANCY
SIDESIDE
SENSOR
RESTRAINT
SEATBELT
SEATBELTDETECTOR
IMPACTIMPACT
SYSTEM
SWITCH
SWITCH
SENSOR
SENSOR
CONTROL
MODULE
I
IGNITION
SWITCH
I
OFF
START
OFF
START
OFF
START
OFF
/
START
ACC-__U-
_____________
_
ACC
"
__U_
_____
AC
_-
_____
A
C
____
,
a
FROMFRONTPOWER
DISTRIBUTION
BOX
(DIAGRAM
2
OF
5)
56
ELECTRONICIMMOBLIZER
((
1
.
2
.8
L
(
L)
8
5O
1
8
~
CONTROL
9
MODULE
I
_
_
IF-")
I
1
I
I
I
I
I
I
WIPERI
RADIO
WASHER
BODYELECTRONICS
WASHER
Pump
CONTROL
MODULEMODULE
(ZKE
IV)
61
31
5'
I
I
I
I
I
I
I
II
I
I
I
I
I
I
I
LEFT
MAKEUP
CONVERTIBLETOP
TOP
SPATIAL
FRONTDOME/
ANTITHEFT
T
RIGHT
MAKEUP
LEFT
RIGHT
MIPROFLIGHT
CONTROLMODULEH
I
FI
SOUND
MAPLIGHT
CONTROLMODULE
MIRRORLIGHT
REAR
FEAR
SWTCH
RELAY
ASSEMBLY
INTERIOR
INTERIOR
______
-
-
-
-
-
_____________________________
-_
FRONTPOWER
FROMFUSE
F43
---
I
DISTRIBUTION
BOX
(OIAGRAM30F5)
J
II
FUSE
FUSE
I
F45
146
7
.5
-_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
ELECTRICAL
WIRING
DIAGRAMS
ELE-21
Power
Distribution
1998Except
318ti
(3
of
5)
2B
NOTUSED
0259
231X
7Oat8
5I
4151
51
5
;
4
4
1
2
O
16
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II
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f
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ON-BOARD
CHECK
STARTER
TRANSMITTER
INSTRUMENT
BRAKE
LISHT
COMPUTERCONTROL
IMMOBILIZATION
MODULE
CLUSTER
SWITCH
MODULE
MODULE
SWITCH
---
-
-
------
--
FRONT
POWER
TOFUSEF45
I
DISTRIBUTION
BOX
'DIAGRAM
S
CPS)
FUSE
"
FUSE
HORN
RELAY
CRUISECRUISE
CONTROLCONTROL
MODULE
SWITCH
I
I
I
I
I
II
I
I
I
I
I
I
I
I
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I
II
II
II
LUGGAGECOMPARTMENT
II
II
II
TELEPHONE
CONNECTOR
DATALINK
CONNECTOR
10442
9
II
OFF
TO
FUSE
F14
(DIAGRAM
3
OF
3)
----------------------------------------------------
I
IGNITION
I
SWITCH
START
-----------------
OFF
--
START
OFF
START
----
OFF
START
I
a
FROM
FRONT
POWER
DISTRIBUTION
BOX
(DIAGRAM
I
OF
3)
ELECTRICAL
WIRING
DIAGRAMS
ELE-33
Power
Distribution
1998
318ti
(2
of
3)
A__
R_N_______________________C__
"
RU-
CC
ACC
-U___
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2
3
5681
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F-,
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IIII,
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BODY
ENGINE
UNL0ADER
INSTRUMENT
BLOWER
ELECTRONIC
ELECTRONICS
CONTROL
RELAY
CLUSTER
RELAY
IM
MOBLIZER
CONTROL
MODULE
CONTROL
MODULE
(DME)
MODULE
(ZKEIV)(EWSII)
FROM
RED
RED
FROM
FRONTPOWER
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FRONTPOWER
DISTRIBUTION
BOX
DISTRIBUTION
BOX
5
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FUSE
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BLOWER
REAR
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RELAY
DEFOGGER
ELECTRONICS
RELAY
CONTROL
MODULE
(ZKE
IV)
HORN
RELAY
NOTUSED
SEAT
DRIVER'S
RIGHT
PASSENGER'S
LEFT
SUPPLEMENTAL
OCCUPANCY
SEAT
IMPACT
SEAT
IMPACT
RESTRAINT
DETECTOR
BELT
SENSOR
BELT
SENSORSYSTEM
SWITCH
SWITCH
CONTROL
MODULE
51
41
4
8
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TELEPHONE
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MAKEUP
MAP
LIGHT
CONTROL
MAKEUP
RANGE
SWITCH
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RELAY
RELAY
MIRROR
ASSEMBLY
MODULE
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LIGHT
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TRANSMITTER
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INSTRUMENTBRAKE
CRUISECRUISE
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DATALINK
WIPER/
WIPER/
RADIO
REARWIPER/
MODULE
IMMOBILIZATION
CLUSTER
LIGHT
CONTROL
CONTROL
CLOCK
COMPUTERCONNECTOR
WASHERWASHER
WASHER
SWITCH
SWITCHMODULE
SWITCH
MODULE
SWITCH
CONTROL
MODULE
LEFT
-
LEFT
I
I
-
RIGHT
-
RIGHT
I
(
)
TAIL
(
)
TAIL
I
I
(
)
TAIL
(
)
TAIL
I
-
LIGHT
-
LIGHT
I
I
LIGHT
-
LIGHT
I
I
II
I
II
I
I
_
I
(
)
BACK-
LEFTUP
(
^
)
BRAKE
I
I
(
^
)
BACK
FIGHT
UP
(
_
)
BRAKE
LIGHT
LIGHT
LIGHT
LIGHT
I
I
II
I
I
______________J
______________J
64882
-
7993
ONLY
ELECTRICAL
WIRING
DIAGRAMSELE-39
Ground
Distribution
1992-93
(5
of
5)
,LEFT
rFIGHT
I
_
_
LEFT
"~LEFT
(TRUNK
I
TRUNK
I
RIGHT
LEFT
I
G
LIGHT
REAR
REAR
RIGHT
~'
RIGHT
I
I
REAR
I
(SEAT(ASSEMBLY
I
(
)
REAR
(
)
BEAR_
(ASSEMBLY
I
(BRAKE
I
(CONTROL
I
-
TURN
FOG
I
I
TURN
FOG
I
I
(
PAD
I
(
SWITCH
LIGHT
LIGHT
i
i
LIGHT
LIGHT
i
SENSOR
B
()
LEFT
LICENSE
(
)
LICENSE
I
(
SEAT
I
I
SEATBACK
I
(
LEVEL
I
(
DOOR
I
I
FILTER
ESSION
LIGHT
LIGHT
I
(
HEATER
I
l
HEATER
I
V
(
STOP
I
v
(
JAMB
I
v
I
(2DOOR)
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