119 BMW 318i 1992 E36 Repair Manual
Page 429 of 759
612
Switches
and
Electrical
Accessories
GENERAL
.
.
.
.
.
.
.
.
.
...
.
.
.
.
.
...
.
......
.612-1
Headlight
switch,
replacing
..
.
...
.
.
.
.
.
.
.
.
.
612-5
Foglight
switch,
replacing
....
.
.
.
.
.
.
.
.
.
.
.
.
.
612-5
INTERIOR
SWITCHES
.
.
...
.
.
.
.
.
.
.
.....
612-1
Hazard
warning
switch,
replacing
.
.
.
.
.
.
.
.
.
.612-5
Turn
signal
switch
and
wiper
switch,
Powerwindow
switch,
replacing
.
.
.
...
.
.
.
.
.
612-5
replacing
.
.
.
.
.
.
.
...
.
.
.
.....
.
....
.
.
.
.
612-1
Outside
mirrorswitch,
replacing
.
.
.
.
.....
.
.
.612-6
Ignition
Switch
Assembly
.
.
.
.
.
.
.
.
....
.
...
612-3
Ignition
electrical
switch,
replacing
.
...
.
....
612-3
INTERIOR
LIGHTS
.
.
................
.
..
612-6
Ignition
lock
cylinder,
replacing
.
.
.
.
.....
.
..
612-4
Dome
light,
rear
map
lights,
trunk
light,
Headlight
and
Foglight
Switch
Assembly
.
.
.
.
612-5
replacing
bulbs
.
......
.
.
.
.
.
.
.
.
.
.....
.
.612-7
GENERAL
Turn
signal
switch
and
wiper
switch,
replacing
Thissection
covers
replacement
of
interior
switches
and
accessories
.
The
procedures
for
removing
the
turn
signal
stalk
switch
and
the
wiper
system
stalk
switchare
similar
.
When
working
on
electrical
switches,
always
disconnect
the
negative
(-)
cable
from
the
battery
and
insulate
the
cable
end
to
prevent
accidental
re-connection
.
CAUTION-
Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
viii
.
WARNING
-
The
cars
covered
by
this
manual
are
equipped
with
a
Supplemental
Restraint
System
(SRS)
that
auto-'
matically
deploys
one
or
more
airbags
.
Each
airbag
unit
houses
an
explosive
powerful
charge
.
Any
work
involving
the
SRS
system
should
only
be
per-
formed
byan
authorized
BMW
dealer
.
Making
re-
pairs
without
the
proper
knowledge
and
special
test
equipment
may
cause
serious
personal
injury
.
See
721
Airbag
System
(SRS)
3
.
With
front
wheels
pointed
straight
ahead,
remove
steer-
"
Testing
and
replacement
information
for
the
oil
ores-
¡ng
wheel
.
See
320
Steering
and
Wheel
Alignment
.
sure
switch
is
covered
in
119
Lubrication
System
.
NOTE-
"
Wirfng
diagramscan
be
found
in
Electrical
Wiring
Diagrams
.
"
Fuse,
relay
and
electrical
component
locations
can
be
found
in
610
Electrical
Component
Locations
.
"
Replacement
information
for
thetransmission
gear
position/neutral
safety
switch
is
covered
in
250
Gear-
shift
Unkage
.
INTERIOR
SWITCHES
NOTE
-
To
preventmarring
interior
trim,
wrap
the
tips
of
screw-
drivers
and
pliers
with
tape
beforeprying
out
switches
or
electrical
accessories
.
SWITCHES
AND
ELECTRICAL
ACCESSORIES
612-1
1
.
Disconnect
negative
(-)
cable
from
battery
and
cover
terminal
with
insulating
material
.
2
.
Remove
airbag
unit
from
steering
wheel
.
See
721
Air-
bag
System
(SRS)
.
Store
airbag
unit
in
a
safe
placew¡th
pad
facing
up
.
NOTE
-
To
helo
with
reassembly,
mark
steering
wheel
and
col-
umn
before
disassembly
.
4
.
Remove
trim
panel
from
lower
left
side
of
instrument
panel
.
See513
Interior
Trim
.
INTERIOR
SWITCHES
Page 458 of 759
640-12
HEATING
AND
AIR
CONDITIONING
A/C
Compressor,
replacing
1
.
Followingmanufacturer's
instructions,
connectanap-
proved
refrigerant
recovery/recycling/recharging
unit
to
A/C
system
and
discharge
system
.
WARNING
-
Do
notdischarge%harge
the
AIC
system
without
proper
equipment
and
training
.
Damage
to
the
vehi-
cle
and
personal
injury
may
result
.
2
.
Remove
splash
shield
fromunder
engine
.
3
.
Mark
A/C
drive
belt
with
direction
ofrotation
.
Remove
A/C
belt
tensioner
trim
cap
.
See
Fig
.
34
.
0011988
Fig
.
34
.
To
access
tensioner
retaining
bolt,
remove
trim
cap
from
drive-belt
tensioner
.
Fig
.
33
.
A/
C
components
.
Arrows
indicatedirection
of
refrigerant
flow
.
AIR
CONDITIONING
4
.
On
4-cylinder
engines
:
Loosen
A/C
belt
tensioner
bolt
under
trim
cap,
then
remove
belt
from
A/C
compressor
.
See
Fig
.
35
.
~=1
A/C
compressor
A
0013019
Fig
.
35
.
4-cylinder
engines
:
Loosen
retaining
bolt
A
on
tensionerto
re-
lease
drive-belt
tension
.
To
increase
tension,
rotate
pulley
in
direction
of
arrow,
then
tighten
bolt
A
.
5
.
On
6-cylinder
engines
:
Release
tension
on
A/C
belt
by
turning
tensioner
pulley
clockwíse
(againstspring
ten-
sion)
.
See
Fig
.
36
.
NOTE
-
Detailed
instructions
for
drive-belt
removal
and
installa-tion
can
be
found
in
020
Maintenance
Program
.
Page 479 of 759
1
.
Disconnect
negative
(-)
cable
from
battery
and
cover
negative
terminal
with
insulating
material
.
CA
UTION-
Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
viii
.
2
.
Remove
driver
sideairbag
from
steering
wheel
.
See
Driver
side
airbag,
removing
and
installing
in
this
repair
group
.
3
.
With
wheels
facing
straight
ahead
and
steering
wheel
centered,
remove
steering
wheel
.
See320
Steering
and
Wheel
Alignment
.
4
.
Remove
contact
ring
cover
(flat
plastic
ring
containing
warning
text)
from
steering
wheel,
íf
applicable
.
5
.
Disconnect
ground
wire,
if
applicable
6
.
Lift
out
plastic
lock
from
steering
wheel,
if
applicable
.
See
Fig
.
2
.
0011903
Fig
.
2
.
Airbag
contact
ring
lock(arrow)
.
Pry
out
lock
and
remove
spríng
from
behind
lock
.
Some
airbag
steering
wheels
are
not
equipped
with
contact
ring
lock
.
WARNING
-
"
The
contact
ring
lock
holds
the
contact
ring
in
the
centered
position
.
Once
the
lock
is
removed,
the
contact
ring
is
free
to
rotate
.
Do
not
allow
the
con-
tact
ring
to
rotate
once
the
lock
is
removed
.
"
If
the
contact
ring
is
accidentally
rotated
outof
center,
turn
the
ring
either
fully
clockwise
orcoun-
terclockwise,
then
turn
in
the
opposite
direction
3
complete
revolutions
until
the
alignment
arrow
canbe
seen
through
the
lock
opening
.
AIRBAG
SYSTEM
(SRS)
721-
3
Airbagcontact
ring,
replacing
7
.
Remove
mounting
nutsor
screws
from
contact
ring
.
See
Fig
.
3
.
Disconnect
wire
lead(s)
andremove
contact
The
airbag
contact
ring
is
mounted
to
the
rear
of
the
steer-
ring
from
rear
of
steering
wheel
.
ing
wheel
and
is
made
up
of
a
wireribbon
that
cofs
and
un-
coils
as
the
steering
wheel
is
tumed
.
The
contact
ring
assures
continuous
electrical
contact
to
the
driver
side
airbag
unit
.
Fig
.
3
.
Airbag
contact
ring
mounting
fasteners(arrows)
.
8
.
Installation
is
reverse
ofremoval,noting
the
following
:
"
Coat
horn
slip
ring
(electrical
contact
ring)
with
CRC
®
copper
paste
before
installing
steering
wheel
.
"
Press
on
lower
lock
until
it
ís
fully
engaged
.
"
When
installing
contact
ringlock,
make
sure
lock
spring
engages
pins
on
lock
and
lock
cover
.
"
Special
instructions
apply
when
installing
airbag
equipped
steering
wheel
.
See320
Steering
and
Wheel
Alignment
.
Early
cars
(through
1993)
:
"
Route
wiring
lead
for
horn
through
squareopening
in
steering
wheel
.
"
When
installing
a
new
contact
ring
from
BMW,
remove
locking
screw
after
installing
the
contact
ringto
steer-
ing
wheel
.
See
Fig
.
4
.
"
Lock
contact
ring
mounting
fasteners
in
place
using
lacquer
paint
or
varnish
.
0011904
Fig
.
4
.
Airbag
contact
ring
locking
screw
(arrow),
as
installed
on
new
replacement
part
from
BMW
(early
production
cars)
.
AIRBAG
SENSORS
AND
ELECTRONICS
Page 501 of 759
88989
FROM1~
RED
FRONT
P
.
DISTRIBUTIONBO
I/
X
(DIAGRAM
2
OF
5)
B
I
I
I
I
I
I
I
I
I
I
L
-1
BLOWER
PARK
HEATING
BLOWER
RELAY
VENTILATION
RELAYRELAY
BOX
FROM
IGNITION
GRN
SWITCH
L
(DIAGRAM
30F5)
7
OR
RED/GR
.
I
.,
1997
OR
1DSSW/OPARK
11998W/PARK
VENTILATIONVENTILATION
FROM
IGNITION
K
SRN
SWITCH
(DIAGRAM
3
OF
5)
-------------
FUSE
FUSE
F20
F28
30A
5A
Power
Distribution
1996-97
Except
318ti
(4
of
5)
AUTOMATIC
TRANSMISSION
RANGE
S
W
ITCH
ELECTRICAL
WIRING
DIAGRAMS
ELE-17
FROM
IGNITION
~
GRN
SWITCH
(DIAGRAM
3
OF
5)
-
-
-
-
FRONTPOWER
FUSE
DISTRIBUTION
BOX
r-
_1
AUXILIARY
,IS
I
I
FE
7
E
I
FUSE
BOX
5
__~
L_
1
_
5
=J
I
-_______-___
~
--_____-___
iml
REO/GRY/
.FN/N
YEL
FROM(~
RED
FRONTPOWER
II
J-
DISTRIBUTION
BOX
(DIAGRAM
2
OF
5)
B
6B
I
I
I
I
I
I
I
I
I
I
I
II
_
1-1
I
__
I
1-1
I
__I
1____l
COMPRESSOR
NORMAL
HIGH
ANTI-THEFT
HORN
RELAY
CONTROL
SPEED
SPEED
CON
TROLMODULE
RELAYRELAYRELAY
MIRROR
LIGHT
HIGH
BEAM
REVERSING
AUTOMATIC
PROGRAM
THROTTLE
SERVOTRONIC
INSTRUMENT
CONTROL
SWITCH
LIGHT
LIGHTSWITCH
TRANSMISSION
SWITCH
FLAP
CONTROL
CLUSTER
SWITCH
RELAY
RANGESWITCH
HEATER
MODULE
(1996)(1996)
L
-I
L-1
L-1
!
_I
L-1
L
-I
L-1
L-1
L-1
L-1
!
_I
L-1
L-1
AUTOMATIC
THERMOSTAT
WATER
COMBINATION
INSTRUMENT
REAR
MULTI-
UNLOADER
SLIPCONTROL
LIGHT
AEC
ABSSLIP
ASS
RELAY
CLIMATE
VALVE
SWITCH
CLUSTER
DEFOGGER
FUNCTION
RELAY
MODULE
(ABS)
SWITCH
SWITCH
CONTROLCONTROL
ASSEMBLY
RELAYCLOCK
(1996)
MODULEMODULE
_1S96
Page 526 of 759
ELE-42
ELECTRICAL
WIRING
DIAGRAMS
BC321
IGNITION
HEATED
__
COILS
HEATED
OXYGEN
ENGINE
(
SHIELD
I
IOXVGEN
II
SENBOR
I
(
CONTROL
I
(SENSOR
-~
SHIELD
I
(
MODULE
I
¢~
I
_I
(DME)
CONTROL
HEATED
I
(MODULE
I
(OXYGEN
I
_-J(OME)
ISENSOR2
0-0
G103
(M3CANADA)
IGNITION
CRANKSHAFT
I
COILS
I
I
POSITIONIRPM
SHIELD
k=__SENSOR
-
SHIELD
I
ENGINE
I-
CONTROL
I
I
MODULE
SRN
IL
1
G123
(3251)
ENGINE
I
(CONTROL
I
(MODULE
I
_
I
(DME)
BRNIORG
BRN/ORG
BRN
3
G119
(3201
.
3251
.
M3
CANADA)
Ground
Distribution
1994-95
Except
318ti
(3
of
5)
HEATED
(OXYGENSENSOR,--
SHIELD
F
_~
HEATED
(OXYGEN
NCA~
_
_~
SENSOR
--
SHIELD
---
I
VARIABLE
CAMSHAFT(CONTROL
I
I
MODULE
----
(VANOS)
CRANKSHAFT
CRANKSHAFT
POSITION/RPM
SENSOR
---~
SHIELD
CAMSHAFT
POSITION
I
I
AIR
PUMP
CAMSHAFT
POSITION/RPM
I
POSITION_
_
I
I
HOT
__
SENSOR
_
SENSOR
FILM
-~SHIELD
-~
SHIELD_
I
I
AIR
M<
I
I
MASS
z
-
--
ETER
m
SENSOR
1
SHIELD
SENSOR
1
SHIELD
-
SENSOR
METER
I
(DME)
_~
SHIELD
19
3y
1Y
__
I
-
I
I
BT
_
I
_
<
557
By
347
287
T
oI
RESISTOR
BRN/I
ORG
_
SENSOR
---~
SHIELD
I
II
v
I
I
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I
I
19
OVER
I
I
VALVE
_I
m
F---D,SENSOR2
I
(VARIABLE
I
(VARIABLESHIELD
CAMSHAFT
CAMSHAFTS
I
I
(CONTROL
I
(CONTROL
I
-
ISENSORI
I
-
I3ENSOR2
SENSOR2
I
SHIELD
1
GROUND
HEATED
TRANSMISSION
HOT
HALL
I
(
OXYGEN
I
(CONTROL_
I
(
FILM
I(
EFFECT
CRANKSHAFT
I;
SENSOR
I
(MODULE
I
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I
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POSITION/RPM
I
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MASS
I
I
SENSOR
._
II
(SHIELD
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PUMPf
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I
I
IDENTIFICATION
I
v
I
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197
L
DAN
TA
K
I
oICONNECTOR
DATA
LINK
CONNECTOR
I
CYL1
(
ICYL3
I
CYL5
I
(ENGINE
I
(CRUISE
I
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I
(
WIPER/
I
BODY
IGNITION
IGNITION
IGNITION
ONTROL
CONTROL
CLUSTER
WASHER
ELECTRONICS
I
;
COIL
I
(
COIL
I
(
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IC
MODULE
I
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MODULE
I
I
I
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MODULE
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I
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CYL2
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-
,
Page 530 of 759
ELE-46
ELECTRICAL
WIRING
DIAGRAMS
BODY
REAR
INERTIA
TR
U
NK
PASSENGERS
LEFT
SPATIAL
I
(
ELECTRONICS
I
(
LIGHTS
I
(
SWITCH
I
(
LID
I
PASSENGERS
(
MAKEUP
I
(
SIDE
I
I
FOOTWELL
I
'SOUND
I
(CONTROL
I
(RELAY
I
I
I
(MICRO
i
(MIRROR
I
(MIRROR
I
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I
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I
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I
_
I
I
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I
-(SWITCH
L-1
SWITCH
I
I
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L-1
(ZKEIV)
Y
I
Y
Y
15
RELAY
I
SUNROOF
I
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I
(ASSEMBLY
1996
ONLY
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I
'TOP
I
(STORAGE
I
I
LID
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-
MOTOR
Ground
Distribution
1996-97
Except
318ti
(2
of
5)
m
FRONT
DRIVERS
PASSENGERS
RIGHT
I
I
DOMELIGHT/
I
(MAKEUP
I
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-
1
FIGHT
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LY
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L-1
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-1997
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1996
199651997
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Page 551 of 759
88168
BATTER
BATTERY
RED
GENERATOR
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LINK
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318is,
325
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STARR
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ELECTRICAL
WIRING
DIAGRAMS
ELE-67
HOTATAL
TIMES
IGNITION
I
j
(SWITCH
DIODE
INTEGRATED
CLIMATE
REGULATION
CONTROLMODULE
(199411995
CANADA)
1994-96
3181,
3181C,
318is,
3251,
3251C,
325is,
3281,
328iC,
3281s
&
M3
Page 559 of 759
8727
8
GR
FUEL
PUMP
FRONT
POWER
DISTRIBUTION
BOX
-
-
-
-
-
-
----
-
-
-
-
-
-
I
H
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OXYGENSENSOR
RELAY
I
HEATEDOXYOEN
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68
87
2Y
GRN
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1993-951
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(2
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a
ELECTRICAL
WIRING
DIAGRAMS
ELE-75
I
ELK
,
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YEL67i
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B
R
N/
ORG
28
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SHEILO
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36
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199531811
m
819930NLY
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Page 560 of 759
ELE-76
ELECTRICAL
WIRING
DIAGRAMS
1
87279
SOLIDSTATE
SOLENOIO
VALVE
(RUNNING
LOSSES)
(1995
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1995
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6119
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(PBS/AS
C)
Page 562 of 759
ELE-78
ELECTRICAL
WIRING
DIAGRAMS
I
ACTIVATEVALVE
I
I
ACTIVATEVALVE
I
31
BR~NIVEI
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ACTIVATEVALVEI
32
BRN/WHT
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TERMINAL15
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POWER
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F46
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199831871
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BOX
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rENGINECONTROLMODULERELAV
FUELPUMPRELAY
I
WIEGS
1
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1998
31811
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I______
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6119
CYL1
CYL2
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MODULE
(EGS)
f-W/EGS