612-4
SWITCHES
AND
ELECTRICAL
ACCESSORIES
Fig
.
6
.
Ignition
switch
set
screws
(arrows)
.
Ignition
lock
cylinder,
replacing
NOTE-
On
cars
with
EWS
11(production
date
1/95
and
later),
the
ring
antenna
surrounding
the
ignition
switch
must
be
removed
.
See
515
Central
Locking
and
Anti-theft
.
1
.
Insert
master
key
finto
lock
cylinder
and
turn
60°
to
"ra-
dio"
position
.
See
Fig
.
7
.
Fig
.
7
.
Turn
ignition
switch
60°
to
"radio"
position
(arrow)
.
2
.
Insert
a
thin
piece
of
stiff
wire
into
opening
in
lock
cylin-
der
and
pull
lockcylinder
out
.
See
Fig
.
8
.
NOTE-
On
early
cars
(up
to
production
date
1ol95),
turn
lock
cylinder
back
12°
to
release
.
INTERIOR
SWITCHES
0012555
0011807
0011808
Fig
.
8
.
With
ignition
key
in
"radio"position,
insert
stiff
wire
into
lock
opening
to
release
cylinder
.
Headlight
and
Foglight
Switch
Assembly
The
headlight
and
foglight
switches
are
retained
in
the
left
dashboard
insert
.
This
alsocontains
the
driver's
side
face
lev-
e¡
air
vents
.
To
service
either
switch,
remove
insert
byremov-
ing
a
single
screw
.
See
Fig
.
9
.
NOTE-
Access
to
electrical
hamess
connectors
behind
dash
insert
may
be
easier
if
lower
left
dash
trim
and
driverside
knee
bolsterare
removed
.
See
513
Interior
Trim
.
Fig
.
9
.
Remove
retaíning
screw
to
pull
out
left
dash
insert
(arrow)
.
Headlight
switch,
replacing
1
.
Remove
left
side
dash
insert
and
disconnect
harness
connector
to
headlight
switch
.
See
Fig
.
10
.
3
.
Remove
nut
mounting
switch
to
dash
insert
.
See
Fig
.
11
.
Fig
.
11
.
Headlight
switch
mounting
nut
(arrow)
.
4
.
Pull
switch
out
from
housing
.
SWITCHES
AND
ELECTRICAL
ACCESSORIES
612-5
0012558
5
.
Installation
is
reverse
of
removal
.
Align
new
switch
to
dash
insert
.
See
Fig
.
12
.
Tightening
Torque
"
Headlight
switch
retaining
nut
.
......
2
Nm
(18
in-lb)
Foglight
switch,
replacing
0012559
Fig
.
10
.
Removing
headlightswitch
electrical
harness
connector
1
.
Remove
left
side
dash
insert,
as
described
earlier,
and
(arrow)
.
remove
foglight
switch
harness
connector
.
2
.
PA
off
headlight
switch
knob
.
Wrapping
adhesive
tape
aroundknob
facilitates
removal
.
spring
tabs
together
.
0012560
Fig
.
12
.
Fit
groove
on
headlightswitch
into
switch
bezel
ondash
insert
(arrows)
.
2
.
Slide
foglight
switch
out
of
dash
insert
by
sqúeezing
3
.
Installation
is
reverse
of
removal
.
Hazard
warning
switch,
replacing
1
.
Unclip
shift
boot
and
lift
up
from
shift
lever
console
.
Carefully
remove
insulation
pad
.
See
250
Gearshift
Linkage
.
2
.
Working
underneath
center
console,
push
hazard
warning
switch
up
and
out
of
console
with
your
fingers
.
3
.
Disconnect
harness
connector
from
switch
.
4
.
Installation
is
reverse
of
removal
.
Power
window
switch,
replacing
1
.
Unclip
shift
boot
and
lift
up
from
shift
lever
console
.
Carefully
remove
insulation
pad
.
See250
Gearshift
Linkage
.
2
.
Working
underneath
center
console,
push
window
switch
up
out
of
console
with
your
fingers
.
See
Fig
.
13
.
3
.
Disconnect
harness
connector
from
switch
.
4
.
Installation
is
reverse
of
removal
.
INTERIOR
SWITCHES
620-2
INSTRUMENTS
Fig
.1.
Instrument
cluster
retaining
screws
(arrows)
.
INSTRUMENT
CLUSTER
0012562
Fig
.
3
.
Turnbulb
base
45°
in
direction
shown
(arrow)
.
l
v
w
r
v
9
10
11
12
13
14
15
16
)7
18
19
20
y
21
1
.
Temperature
warning
12
.
Brake
fluid
warning
oo13n6
2
.
Right
turn
signal
13
.
Brake
pad
wear
warning
3
.
Instrument
lighting
14
.ABS
warning
Fig
.
2
.
Instrument
cluster
connector
locking
lever
(arrow)
.
4
.
Oil
pressure
warning
15
.
Seat
belt
warning5
.
Highbeam
16
.ASTwarning
6
.
Battery
charging
lamp
17
.Check
control
6
.
Installation
is
reverse
of
removal,
noting
the
following
:
7
.
Left
turn
signal
18
.Check
engine
"
Instrument
cluster
harness
connector
locking
levers
8
.
Low
fuel
warning
19
.
LCD
lighting
must
be
in
up
position
before
installing
connector
.
9
.
Airbag
warning
20
.
Rear
foglight
(not
used)
10
.
Catalytic
converter
warning
21
.
Front
foglights
"
Install
airbag
to
steering
wheel
as
described
in
721
11
.
Emergency
brake
Airbag
System
(SRS)
.
0012563
"
Reconnect
negative
(-)
cable
to
battery
last,
once
al¡
Fig
.
4
.
Bulb
designation
chart
.
harness
connectors
have
been
reconnected
.
"
Recode
cluster
as
described
in
Instrument
cluster,
CAUTION-
seif-testing
.
Note
wattage
of
bulb
.
Excessive
wattage
could
melt
cluster
housing
.
Replace
defective
bulbs
with
Instrument
cluster
bulbs,
replacing
reptacementbulbs
of
the
same
wattage
.
1
.
Remove
instrument
cluster
as
described
above
.
Odometer
coding
plug,
replacing
2
.
Remove
faulty
bulb
by
turning
bulb
base
45°
inits
mount
and
remove
from
housing
.
See
Fig
.
3
.
The
coding
plug
maintains
a
record
of
thevehicle
mileage
.
The
back
of
the
instrument
cluster
and
its
bulb
locations
are
1
.
Record
vehicle
mileage
.
shown
in
Fig
.
4
.
2
.
Remove
instrument
cluster
as
described
earlier
.
FRONT
LIGHTING
.
...........
.
....
.
.
.
.
630-1
Headlight
buib,
replacing
............
.
.
.
.
630-1
Headlight
assembly,
removing
and
installing
.......
.
....
.
.
.
.
630-2
Foglight
assembly,
removing
and
installing
..
630-3
Front
turn
signal
assembly,
removing
and
installing
.....
.
.
.
........
630-4
GENERAL
The
headlight
and
foglight
assemblies
usehalogen
bulbs
.
To
ensure
the
longevity
of
halogen
bulbs,
the
bulb
glass
should
not
be
handied
.
Dirt
and
skin
oíls
may
cause
a
bulbto
fail
prematurely
.
If
necessarywipe
bulb
using
a
clean
cloth
dampened
with
rubbing
alcohol
.
NOTE-
Use
only
original
equipment
replacement
bulbs
.
Non-
original
equipment
bulbs
may
cause
false
failure
read-
ings
on
the
check
control
display
(where
applicable)
.
WARNING
-
INhenworking
on
electrical
systems,
remove
the
fuse
protecting
the
circuit
under
repair
.
See
610
Electrical
Component
Locations
.
FRONT
LIGHTING
Headlight
bulb,
replacing
1
.
Open
engine
hood
.
2
.
Working
in
back
of
headlight
assembly,grasp
rear
of
bulbsocket
(harnessconnector)
and
turn
counterclock-
wise
90°
.
Pull
bulb
out
of
headlight
assembly
.
See
Fig
.
1
.
3
.
Disconnect
harness
connector
from
bulb
.
CA
UTION-
Do
not
touch
halogen
bubs
with
yourbare
hands
.
If
necessary
wipe
bulb
using
a
clean
cloth
damp-
ened
with
rubbing
alcohol
.
630
Exterior
Lighting
EXTERIOR
LIGHTING
630-1
GENERAL
.
.
.
.
...
.
................
.
.
.
.
630-1
Side
Marker
Lights
.......
.
.
.
.
.
.......
.
..
630-4
REAR
LIGHTING
.
......
.
.
.
.
.
.
.
...
.
.
.
..
630-4
Taillight
Bulbs
..........
.
.
.
.
.
.....
.
.
.
.
.
630-4
Taillight
assembly,
removing
and
installing
.
.
.
630-5
CenterBrake
Light
.......
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
630-5
Center
brake
light
housing,
replacing
(4-door
and
coupe
models)
.
.
.
.
.......
.
.
.630-5
License
plate
light,
removingand
installing
.
.630-6
0012567
Fig
.1.
Torelease
bulbfrom
headlight
assembly,
rotate
socket
coun-
terclockwise
to
disengage
retaining
tabs
(arrows)
.
Right
side
bulb
is
shown
in
unlocked
position
.
Note
that
bottom
tab
A
is
wider
than
other
two
.
4
.
Installation
is
reverse
of
removal
.
Align
tabs
on
bulb
base
to
cutouts
on
rear
of
lens
assembly
.
Secure
bulb
by
rotating
clockwise
90°
.
Bulb
Applications
"
Low
beam
headlight
bulb
...
.
..
..
.........
H9006
"
High
beam
headlight
bulb
..
.
..
..
.........
H9005
FRONT
LIGHTING
4
Foglight
assembly,
removing
and
installing
1
.
Foglight
lens
release
catch
2
.
Foglight
lensrear
protective
cap
3
.
Foglight
bulb
4
.
Foglight
lens
Fig
.
7
.
Foglight
assembly
(removed)
.
0012682
Fig
.
6
.
Measure
gap
B
(1.5
mm)
between
front
of
hood
and
headlight
cover
.
Note
horizontal
headlightadjusting
nut
(1)
and
retaining
screw
(2)
.
The
following
procedure
covers
foglight
lens
and
foglight
buib
replacement
.
Foglight
components
are
shown
in
Fig
.
7
.
0012683
EXTERIOR
LIGHTING
630-
3
1
.
Insert
a
screwdriver
in
upper
air
duct
inlet
of
front
lower
valence
and
disengage
foglight
lens
catch
mechanism
.
Swing
light
outward
and
gently
disengage
hinged
end
.
See
Fig
.
8
.
Fig
.
8
.
Insert
screwdriver
in
upper
air
duct
inlet
.
uu¡¿biu
2
.
Remove
rear
protection
capand
disengage
steel
wire
foglight
bulb
clamp
.
3
.
Remove
bulb
from
rear
of
foglight
assembly
.
Discon-
nect
electrical
harness
from
foglight
bulb
.
CAUTION
-
Do
not
touch
halogen
bulbs
with
yourbare
hands
.
If
necessary
wipe
buib
using
a
clean
cloth
damp-ened
withrubbing
alcohol
.
4
.
Installation
is
reverse
of
removal
.
Check
electrical
con-nector
for
corrosion
.
Spray
with
contact
cleaner,
if
nec-
essary
.
Bulb
Application
(USA
Models)
:
"
Foglight
bulb
......
...
..
...
..........
Hl
(55w)
FRONT
LIGHTING
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--2
ELECTRICAL
WIRING
DIAGRAMS
FUSE
LINK
64766
I-i
I
-
i
a
1
I
_
ZJ
I
I
I
I
I
I.
4
2
GRN/VIO
I_I
!
___I
I_I
1
D>
6
END
INECONTROL
ENGINECONTROL
TRANSMISSION
CONTROL
DATALINK
MODULE
MODULE
RELAY
MODULE
(EGS)
CONNECTOR
I
I
I
I
5
(F18
--_______________________________________________
O19~
N
RIBUON
BOX
I
FUSE
II
15A
o~___________________________________________________Q~____-aft
TO
FUSE
F5
C
RED
(DIAGRAM
6
OF
7)
FUELPUMP
I
(DIAGRAM60F7)
C'
RED
\
L------r>
(DIAGRAM60F7)
I
LOW
F
I
FRONT
HIGH
BEAM
FOGJ
BEAM
I
I
LIGHT
I
I
LIGHT
I
j
/
I
LIGHT
RELAY
I
RELAY
li
SJ
RELAY
1992
1993W/TRUNK
MOUNTEDBATTERV
1993W/ENGINE
COMPARTMENTMOUNTEDBATTERV
1993W/TRUNK
1993W/ENGINE
1992
1992
WI
ENGINE
W/TRUNK
BATTERY
MOUNTEDBATTERV
¢)
MOUNTED
BATTERY
MOUN
O
TEDBATT
I
ERV
¢I¢I
MOUNTEDBATTERV
TOFUSEF40
<
,.k
RED
(DIAGRAM
6
OF
7)
I
I
(DIAGRAM
3
OF
7)
TO
FUSEF3
E
RED
(DIAGRAMfiOF7)
"
.
1k
I
(DIAGRAM
6OF7)
>I
mJ~CANADA
RED
BNUMPSTART
JUNCTION
POINT
REO
Power
Distribution
1992-93
318i
Only
(1
of
7)
-UNCTION
POINT
TOFUSEF15
TO
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F29
(DIAGRAM60F7)
(OIAGRAM6OF7)
I
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.
FUEL
_I
I
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~
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TOFUSE
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TOFUSEF19
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(DIAGRAM6OF7)
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I
III
-
(DIAGRAM70F7)
OXVGENSENSOR
RELAY
(4CVL)
RED
RED
RED
ON-BOARD
LEFTPOWERRIGHTPOWERLEFTPOWER
TOFUSEF17
COMPUTERHORN
WINDOWMODULE
WINDOWMODULE
WINDOW
MODULE
(DIAGRAM
60F
7)
RELAY
TO
COMFORTRELAV
ELE
Power
L
1992-9332
RED
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GENERATOR
STARTER
BATTERY
¢
(FUEL
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(325)
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26
66
PUMP
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I
RELAY
2
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ENGINE
CONTROL
TRANSMISSION
CONTROL
DATA
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ENGINECONTROL
iMODULE
MODULE
(EGG)
CONNECTOR
MODULE
RELAY
15
--
---
-
-
----
--
FRONT
POWER
FUSE
r
-
i
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;
I
16A
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A
RED
(DIAGRAM
6
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7)
(DIAGRAM
3
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TO
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6
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30A
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RELAY
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4
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62
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17
I
ON-BOARD
LEFTPOWER
RIGHTPOWER
LEFT
POWERTOFUSEFI7
COMPUTERHORN
WINDOW
MODULE
WINDOWMODULE
WI
NDOWMODULE
(DIAGRAMS
OF7)
RELAY
64770