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
VEHICLEI2
BLKIWHT
SPEED
}----
"
BIGN=L
j
XIZ
INSTRUMENT
CLUSTER
WIPER/
WASHER
MODULE(LOW
III
88916
INSTRUMENTCLUSTER
88985
12
2B
`~I
----
RED/BLU/VEL/
VIOIBLK~
-18
1
SRN/GRN/YEL
2
BLKIWHT/YEL
3
BLKIRED/YEL
4~5
BLKIWHT
~6
REYV=L
7
BR
}
8
VIO~
-
g
BLK
I
IBRN
10
BRN~~
117
BR~
-
12
BLKI
.13
BLKIBLU
X
15B
ORG
I
E
B
-
1
BRNIORG
~
G203
VEL
VIof_
BLK
VEHICLES
2
BLK/WHT
SPEED
~~
_
--
"
I
SIGNAL
X1Z
NO
;
1
BRN/GRN/YEL
BLK/WHT/VEL
BLK/RED/VEL
q
GRV/BLKBLKIWHT
RED/BLU/VEL
77
BFN
A
VIO/BLK
BLK/BRN
X
10
BRNIV
I
10
77
BRN/V
H
10
,72
BLK/GRV
ELECTRICAL
WIRING
DIAGRAMS
ELE-155
Wiper/Washer
HOTAT
HOTINACCY,ALLTIMES
RUN
ANO_START
I
FUSE_
_
_
FUSE
FRONTPOWER
I
F36
F76
DISTRIBUTION
BOX
L0A
,~,15A
BRN
I
t
G203
INTERIO
LIGHTS
SYSTEM
WASHER
PUMP
BRNIGRN/YEL
,
NCA
SLK/W
NC
A
BLK/RED/YEL
2
NCA
r"'ll'
G202
I
B=N
:
8
.N
'C
NCA
Z,
BLKIBRN
WASH
BLK/GRY
SINGLE
q
OFF
BLKIBLU
INTER
NORML~
1
`
BRN(VIO
FAST
1
G203
t_
G202
(1997,98)
IEXCEPT1997,98)
HOTATHOTAT
HOTINACCV,
ALLTIMES
ALLTI_MES_R_U_NAND_START
-
~
r
T
S
FUSE
___
,IFUS_E
,USE
_____
IFRONTPOWER
I
/
F36
lF3
~F6q
I
DISTRIBUTION
BOX
L
_121A
_-~I
0A--_116A
12
X744TB
6
X14415
281
X1=6
RED/BLU/YEL
REDJBRNl
VIO/BLKI
NCA
2
BRN/GRN/VEL
4E
N<
CA
BLK/WHT/VEL
NCA
BLK/REDJVEL
NCA
BLK/GRV
L--yl
SINGLE
q
OFF
BLK/BRN
INTER
NORML~
BRN
1
SRN/VIO
FAST
BF.
I
(
7
BLK/GRN
ED)
~E-
I
VS
1
ZG203
WASHER
PUMP
.BR"
c
'
E
NCA
BRN
J
G202
BRN/VIO
2,
BLK/BLU
WIPER/WASHER
SWITCH
WIPERMOTOR
WASH
WIPER/WASHER
SWITCH
1992-98
USA
Except
318ti
1998
Canada
Except
318ti
