o2 sensor BMW M3 1998 E36 Workshop Manual
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 480 of 759
721-
4
AIRBAG
SYSTEM
(SRS)
CAUTION-
A
new
contact
ring
is
held
in
center
position
with
a
screw
.
This
locking
device
must
be
removed
after
contact
ring
is
installed
on
steering
wheel
.
See
Fig
.
4
.
Latercars
(1994
on)
:
"
Connect
ground
lead
at
contact
ring
.
"
When
installing
a
new
contact
ring
from
BMW,
remove
locking
pin
after
installing
contact
ring
to
steering
wheel
.
See
Fig
.
5
.
Airbag
crash
sensor,
replacing
Fig
.
5
.
Airbag
contact
ring
locking
pin
(arrows),
as
installed
on
new
replacement
part
from
BMW
(later
production
cars)
.
Contact
ring
mountíng
screws
shown
at
A
.
CAUTION-
Anew
contact
ring
is
held
in
center
position
with
a
screw
or
pin
.
This
locking
device
mustbe
removed
after
contact
ring
is
installed
on
steering
wheel
.
See
Fig
.
5
.
The
airbag
system
in
cars
produced
through
1993
uses
two
crash
sensors
mounted
in
the
engine
compartment
on
the
left
and
right
wheel
arches
.
The
sensors
are
identified
by
their
or-
ange
color
.
WARNING
-
If
en
airbag
is
deployed,
both
sensors
must
be
re-
placed
.
1
.
Disconnect
negative
(-)
cable
from
battery
and
cover
negative
terminal
with
insulating
material
.
CAUTION-
Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautíons
given
at
the
front
of
thls
manual
on
page
viii
.
AIRBAG
SENSORS
AND
ELECTRONICS
2
.
Remove
lower
steering
column
trim
mounting
screw
and
remove
lower
trim
.
See
Fig
.
6
.
Fig
.
6
.
Lower
steering
column
retaining
screw
(arrow)
.
3
.
Remove
orange
SRS
connector
from
its
holder
and
carefully
separate
connector
.
See
Fig
.
7
.
Fig
.
7
.
Orange
SRS
connector
below
steering
column
(arrow)
.
4
.
Working
in
engine
compartment,
remove
anti-tamper
Torx
screwsfrom
crash
sensor
.
Remove
sensor
and
disconnect
harness
connector
.
See
Fig
.
8
.
5
.
Installation
is
reverse
of
removal
.
Make
sure
arrow
on
sensor
faces
forward
when
installing
sensor
.
WARNING
-
Once
the
airbag
unit
is
installed
and
all
other
ser-vice
procedures
have
been
completed,
start
the
en-
gine
and
check
that
the
SRS
warning
light
goes
out
.
If
the
warning
light
stays
on,the
SRS
system
will
not
function
as
designed
.
Have
the
system
diagnosed
and
repaired
byen
authorized
BMW
dealer
.
0012543
0011891
Page 481 of 759
Fig
.
8
.
Airbag
crash
sensor
mountingscrews
(arrows)
on
early
cars
.
Note
Torx
screws
with
anti-tamper
pin
in
screw-head
.
ZAE
control
module,
replacing
NOTE-
Some
versions
of
early
ZAE
control
modules
are
no
longer
available
from
BMW
.
When
replacing
control
modules
on
cars
built
between
September
1993
and
June
1994,
consulta
BMW
parts
department
for
the
lat-
est
information
on
retrofitting
the
later
module
.
3
.
Remove
orange
SRS
connector
from
its
holder
and
carefully
separate
connector
.
Refer
to
Fig
.
7
.
1
.
Disconnect
negative
(-)
cable
from
battery
and
cover
negative
terminalwith
insulating
material
.
4
.
Working
behind
steering
wheel,
completely
loosen
Torx
screws
(T30)
while
holdingairbag
in
place
.
See
Fig
.
9
.
2
.
Lift
rearseat
cushion
.
Unplug
harness
connectors
and
Support
airbag
unit
toprevent
it
from
falling
out
.
remove
ZAE
airbag
control
module,
which
is
bolted
to
top
of
driveshaft
tunnel
.
3
.
Installation
is
reverse
of
removal
.
Front
side-impact
airbag
crash
sensor,
removing
and
installing
1
.
Disconnect
negative
(-)
cable
from
battery
and
cover
negative
terminal
with
insulating
material
.
2
.
Remove
front
seat
.
See520
Seats
.
3
.
Convertible
:
remove
rear
seat
4
.
Remove
plastic
door
sill
trim
.
5
.
Fold
up
carpet
in
back
of
front
seat
.
6
.
Pull
off
connector
from
crash
sensor,
which
is
located
under
rugnext
to
door
si¡¡
.
7
.
Remove
sensorby
removing
screws
.
Note
direction
ar-
row
before
removing
sensor
.
8
.
Installation
is
reverse
of
removal,noting
direction
arrow
on
sensor
.
AIRBAGS
AIRBAG
SYSTEM
(SRS)
721-
5
Driver
side
airbag,
removing
and
installing
1
.
Disconnect
negative
(-)
cable
from
battery
and
cover
negative
terminal
with
insulating
material
.
WARNING
-
On
cars
with
ZAE
system
:
If
theairbag
system
has
detected
a
fault
(SRS
indicator
illuminated),
a
wait-
ing
period
ofat
least
ten
minutes
must
be
observed
before
removing
the
airbag
from
the
steering
wheel
.
This
will
allow
the
system
capacitor
to
discharge,
re-
ducing
the
possibility
of
a
trigger
pulsebeinggener-
ated
to
the
airbag
.
CAUTION-
Prior
to
disconnecting
the
battery,
read
the
battery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
vi¡¡
.
2
.
Remove
lower
steering
column
trim
mounting
screw
andremove
lower
trim
.
Refer
to
Fig
.
6
.
Fig
.
9
.
Driver
sideairbag
unit
mounting
screws
(arrows)
.
0011893
AIRBAGS
Page 486 of 759
ELE--2
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11
FUSE
I
DISTRIBUTION
BOX
.
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-----------------
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---
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SCONTROL
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-
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MODULE
SENSOR
I
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GLOVEBOX
I
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II
II
(LATE
LIGHT
I
-I
_
I
I
_
I
PRODUCTION)
FRONTDOME/
ANTI
THEFT
RIGHTMAKEUP
BODVELECTRONICS
MAP
LIGHT
CONTROLMODULE
MIRRORLIGHT
CONTROLMODULE
WIPER/WASHER
RADIO
TWINRELA'
ASSEMBLY
(ZKEIV)
MODULE
MODULE
(CANADA)
(CANADA)
VIO/WHT
>
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8
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1
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8
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LEFTMAXEUP
CONVERTIBLE
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SWITCH
WIPER/WASHER
WASHERPUMP
MIRROR
LIGHT
CONTROL
MODULE
TRANSCEIVER
OCCUPANCY
SPATIAL
SOUND
MODULE
(USA)
DETECTOR
(1995)
(USA)
8317
3
Page 500 of 759
ELE-16
ELECTRICAL
WIRING
DIAGRAMS
88978
TO
FUSE
F16
yDIAGRAM
4
OF
5)
70FU
SEF28
K
GRN
(DIAGRAM
4OF5)
___
--------
_---------------------
______________
I
IGNITION
I
SWITCH
I
_
_
_-_-__-
-----------
I
OFF
START
OFF
START
OFF
START
F,
START
FROM
FRONT
POWER
r
<
DISTRIBUTION
BOX
(DIAGRAM
2OF5)
=OC---U-
-_-_---_-__-ACC--RU=
____CC_CC--R=N-
CC-PUN
Power
Distribution
1996-97
Except
318ti
(3
of
5)
ELECTRONICIMMOBLIZER
CONTROL
MODULE
(EWS11)
NOTUSED
2_
.
15
t
I
I
II
II
F-,
II
II
I
I
II
I
I
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-I
L-1
INSTRUMENT
HORN
RELAY
ENGINECONTROL
UN
LOADER
INSTRUMENT
BLOWERRELAY
CLUSTER
No
DULE(DME)
RELAY
CLUSTER
°_
(1996)
-----
-------
1
1'
--
FRONTPOWER
I
M
TO
1111111
IDISDISTRIBUTION
BOX
(DIAGRAM
3
OF5)
II
FUSE
FUSE
USE
I
1'44
F43
42
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!
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LIGHT
(1987)
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WIPER/
RADIO
TWIN
RELAY
WASHERWASHER
WASHER
MODULE
PUMPMODULE
MODULE
(1996
CANADA)
(1996
CANADA)
SEAT
RIGHTSIDE
LEFT
SIDE
SRS
ROLLOVER
OCCUPANCY
IMPACTIMPACT
CONTROLSENSOR
DETECTOR
SENSORSENSOR
MODULE
(1997)(1997)(1997)
O~
31
1~
~
1
31
11
51
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II
I
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II
II
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COMPARTMENT
TELEPHONE
CONNECTOR
LEF7MAKEUP
CONVERTIBLETOP
TELEPHONE
SEAT
SWITCH
FRONTDOME/
ANTI-THEFT
RIGHTMAKEUP
REAR
(1997)
MI
PROFLIGHT
CONTROLMODULE
TRANSCEIVER
OCCUPANCY
SPATIALSOUND
MAPLIGHT
CONTROLMODULE
MIRROR
LIGHT
INTERIOR
(1996)
DETECTOR
ASSEMBLY
(199fi)
FROMFISE
141
---
(DIAGRAM
30F5)
M
________--_--_________________-_----------------
FRONTPOWER
DISTRIBUTIONBOX
(
FUSE
FUSE
1I
F45
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7
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___
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32Y
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CRUISECONTROL
CRUISECONTROL
TRANSMITTER
COMPUTER
CONTROL
RELAY
MOTOR
IMMOBILIZATION
MODULE
CLUSTER
SWITCH
MODULE
SWITCH
MODULE
MODULE
(1996)
RELAY
SWITCH
(1996)
(1998)
(1997)
0
TALINK
CONNECTOR
Page 505 of 759
TOFUSEF16
GGRN
(DIAGRAM
4
OF
5)
TOFUSEF28
HGRN
(DIAL
RAM
4
OF
5)
TOFUSEF24
GRN
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FUSE
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F44
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154
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---____--aaa-r
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TELEPHONE
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GLOVEBOX
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CONNECTOR
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LIGHT
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RIGHT
SEAT
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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
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56
ELECTRONICIMMOBLIZER
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1
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MODULEMODULE
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61
31
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______
-
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-
-
-
_____________________________
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FRONTPOWER
FROMFUSE
F43
---
I
DISTRIBUTION
BOX
(OIAGRAM30F5)
J
II
FUSE
FUSE
I
F45
146
7
.5
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_
_
_
_
_
_
_
_
_
_
_
_
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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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
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FUSE
"
FUSE
HORN
RELAY
CRUISECRUISE
CONTROLCONTROL
MODULE
SWITCH
I
I
I
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II
I
I
I
I
I
I
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I
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I
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II
II
II
LUGGAGECOMPARTMENT
II
II
II
TELEPHONE
CONNECTOR
DATALINK
CONNECTOR
Page 506 of 759
ELE-22
ELECTRICAL
WIRING
DIAGRAMS
GRNIBLU
Wl
WIO
AUTO
AUTO
CLIMATE
GEN/YELT
CLIMATE
CONTROL
CONTROL
10437
3
FP
OM~
PED
FRONTPOWER
DISTRIBUTION
BOY%
(DIAGRAM
2
OF
5)
S
FROMIGNITION
GRN
SWITCH
1
(DIAGRAM30F5)
r-______
________-IFRONTPOWER
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DISTRIBUTIONBO%
I
(DIAGRAM
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I
40F5)
FUSE
FUSE
FUSE
FUSE
I
I
F24
F25
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F27
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GRN/I
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FPOMIGNI710N
GRN
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H
SWITCH
G
(DIAGRAM30F5)
(DIAGRAM
OF
5)
FROM
PED
FRONTPOWER
F
DISTRIBUTION
BOX
15X
.1901Z
11IXmlfi
(DIAGRAM20F5)
11
X102s0
__
--
--
_
----
_
hRRICC
FRONT,
POWER
_
AUXILIARY
FUSE
FUSE
USE
I
DISTRIBUTION
BOX
I
FUSE
IFUSEBO%
Fzo
Fze
1J,F1s
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41
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I
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I
I
I
I
I
I
PARKHEATING
SLOWER
AUTOMATIC
COMPRESSOR
NORMAL
HIGH
VENTILATION
RELAY
TRANSMISSION
CONTROL
SPEEDSPEED
RELAYBOX
RANGESWITCH
RELAY
RELAYRELAY
(W/PARK
VENTILATION)
X7002B
Power
Distribution
1998
Except
318ti
(4
of
5)
"
_-__--_----
.
"
----+
ROLLOVER
MIRROR
JET
LIGHT
DAYTIME
REVERSING
AUTOMATIC
PROGRAM
INSTRUMENTSENSOR
CONTROL
HEATER
SWITCH
RUNNING
LIGHTSWITCH
TRANSMISSION
SWITCH
CLUSTER
SWITCH
THERMOSWITCH
LAMPS
(W/O
EGS)
RANGE
SWITCH
MODULE
61
41
zIx1oD17
ANTI-THEFT
HORNRELAY
Co
NTROLMODULE
FROM
___________________-__-_______________,FRONTPOWER
I
FUSE
F24
K
I
DISTRIBUTION
BOX
I
(DIAGRAMFUSE
USE
FUSE
I
40F5)
I
F23
F22
F21
I
5A-vvv--vv-~vv--cvvvvcv-
5-
5A___
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W/OASC
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I
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I
I
I
I
I
I
I
I
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!
_I
L-1
L
-I
L-1
L-1
AUTOMATIC
THERMOSTAT
WATER
COMBINATION
INSTRUMENT
REAR
MULTI-
UNLOADER
ON-BOARD
LIGHT
ABSCONTROL
AS
C
SLIP
ASS
RELAY
CLIMATE
VALVE
SWITCH
CLUSTER
DEFOGGED
FUNCTION
RELAY
COMPUTER
SWITCH
MODULE/
SWITCH
CONTROL
MODULE
L
ASSEMBLY
RELAY
CLOCK
MODULE
HYDRAULIC
MODULE
UNIT
Page 514 of 759
ELE-30
ELECTRICAL
WIRING
DIAGRAMS
I
ACC
-R=_
____-____-______________
ACC
-
RUN
ACC
-_-C~
4Y
2Y
I
I
TO
FUSE
F24
(DIAGRAM
30F
3)
FROM
FRONT
POWER
DISTRIBUTION
BOX
(DIAGRAM
1
0F3)
IGNITION
SWITCH
I
I
_
_
_
_
___
_
_
_
_
_
_
O
_
I
OFF
START
_
---
------
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__
_
_
OFF
START
FF
START
I
ss
DISTRIBUTION
BOX
(DIAGRAM
1
OF
3)
111
__
________
____________,
I
FUSE
FUSE
I
F28
F
1S
1
5A
5A
88138
BODY
ENGINE
UNLOADER
INSTRUMENT
BLOWER
ELECTRONIC
ELECTRONICS
CONTROL
RELAY
CLUSTER
RELAY
IM
MOBLIZER
CONTROL
MODULE(ONE)
CONTROLMODULE
MODULE
(ZKEIV)
(EWSII)
.
I
I
I
I
I
I
I
II
I
I
I
I
I
I
I
--I--I
L-1
L-1
Power
Distribution
1997
318ti
(2
of
3)
:,),
lk
Ilks),B),
I
I
I
I
I
I
I
I
I
I
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II
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1
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RED
FROM
FRONT
POWER
~
'
V
FRONTPOWER
DISTRIBUTION
BOX
(DIAGRAM
20F
3)
--------------------
TO
RUSE
F45
G
(DIAGRAM
2
OF
3)
USE
FUSE
FB
OA20
30A
--
-----
--------------------
1
1),
6),
I
I
F
-
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SRS
RELAY
DEFOGGER
ELECTRONICS
OCCUPANCY
IMPACT
IMPACT
CONTROL
RELAY
CONTROL
DETECTOR
SENSORSENSOR
MODULE
MODULE
(ZKE
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AUTOMATIC
COMPRESSOR
NORMAL
HIGH
LEFT
FRONTDOME/
ANTI-THEFTRIGHT
TRANSMISSION
CONTROL
SPEEDSPEED
MAKEUP
MAPLIGHT
CONTROL
MAKEUP
RANGESWITCH
RELAY
RELAY
RELAY
MIRROR
ASSEMBLY
MODULE
MIRROR
LIGHT
LIGHT
--------------------------------------------------------
FROM
FUSEF43
---
-
FRONTPOWER
(DIAGRAM
2OF3)
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FUSE
FUSE
FUSE
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32
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TELEPHONE
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ATALINK
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FRONTPOWER
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DISTRIBUTION
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F43
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-
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