Temperature BMW 318i 1994 E36 Repair Manual

AUTOMATIC
TRANSMISSION



240-1

240
Automatic
Transmission

GENERAL
.....
.
.
.
.
.
.
.
.
.
.
.
.
.
.........
.
240-1



TRANSMISSION
REMOVAL
AND

INSTALLATION
..................
.
.
.
.
.240-4
TRANSMISSION
SERVICE
.
.
.
.
.
.......
.
240-1



Transmission,
removing
and
installing
....
.
.
.240-4

ATF
leve¡,
checking
..
.
.
.
.
.
.
.
.
.
..........
240-1

ATF,
draining
and
filling
.
.
.
.
.
.
.
..........
240-2



TABLE

a
.
Automatic
Transmission
Gear
Ratios
.......
..
.
.
240-1

GENERAL



TRANSMISSION
SERVICE



lo

Automatic
transmissions
are
identified
by
code
letters



ATF
leve¡,
checking

foundon
a
data
plate
located
on
the
sideof
thetransmission

case,
behind
the
manual
valve
lever
.
See
200Transmis-



The
automatic
transmissions
installed
in
the
E36
models
sion-General
for
application
information
.
Forgear
ratio
spec-



are
normally
filled
with
Dexron
III
automatic
transmission
fluid

ifications,
see
Table
a
.



(ATF),
although
alternative
fluids
have
been
installed
from
the

factory,
depending
on
transmission
type
and
model
year
.

CAUTION-



Some
transmíssions
are
filled
with
a
special
BMW
"lifetime"

ATF
does
not
circulate
unless
the
engine
is
run-



automatic
transmission
fluid,
which
does
not
require
periodic

ning
.
When
towing
an
automafic
transmission
ve-



fluid
changes
.

hicle,
usea
flat-bed
truck
or
ralse
the
rear
wheels
off
the
ground
.



CAUTION-

Mixing
different
types
of
transmission
fluids
will

The
electronic
transmission
control
module
(TCM)
monitors



lead
to
transmission
failure
.

transmissionoperation
for
faults
and
alerts
the
driver
by
illumi-

nating
the
transmission
fault
indicator
on
the
instrument
pan-

el
.
On-board
diagnostic
codes
stored
in
the
TCM
mustbe



NOTE-

downloaded
and
interpreted
by
trained
technicians
using
spe-



The
transmission
lubricant
instafed
can
be
foundona

cial
BMW
diagnostic
equipment
.



type
plate
on
the
side
of
the
transmission
.
In
addition,
a
sticker
may
be
located
on
the
fluid
sump
indicatingthe
typeof
transmission
lubricant
used
.
Ifin
doubt,
con

NOTE-



sult
an
authorized
BMW
dealer
for
altemate
fluid
use

Internal
repairs
to
the
automatic
transmission
require



and
current
information
regardingtransmission
operat-
special
service
equipment
and
knowledge
.
If
it
is
deter-



ing
fluids
.

mined
thatinterna¡
service
is
required,
consult
en
au-

thorízedBMWdealerabouta
factoryreconditioned
unit



The
transmission
is
not
equipped
with
a
dipstick
.
Checking
or
a
transmission
rebuild
.



the
ATF
leve¡
requires
measuring
and
maintaining
a
specified

ATF
temperature
during
the
checking
procedure
.
The
check-

ing
temperature
is
not
fully
warm
orcold
(the
ATF
sump

should
be
approximately
warm
to
the
touch)
.

Table
a
.
Automatic
Transmission
Gear
Ratios

Transmission



MS
310R
(THM-R1)



MS
310R
(THM-Rl)



MS
310Z(5HP
18)



I



MS
270R
(THM-R1)
(1992-1993)(1993-on)

Gear
ratios
:
1st



2
.40



2
.86



3
.67



2
.86

2nd



1
.47



1
.62



2
.00



1
.62
3rd



1
.00



1
.00



1.41



1
.00
4th



0
.72



0
.72



1
.00



0
.72
5th



-



-



0
.74



-
Reverse



2
.00



2
.00



4
.10



2
.00

TRANSMISSIONSERVICE

240-2



AUTOMATIC
TRANSMISSION

WARNING
-

If
the
appropriate
temperature
measuring
equip-
ment
is
not
available,
ATF
leve¡
checking
shouldbe
left
to
an
authorized
BMW
dealer
The
checking
pro-
cedure
should
be
done
on
a
lift
with
the
engine
run-
ning
in
neutral
.
In
addition,
the
transmission
fluid
temperature
must
be
maintained
within
a
narrow
range
duringthe
checking
procedure
.

1
.
Place
vehicle
on
a
lift
.

WARNING
-

To
lift
the
vehicle
safely,
see
010
Fundamentals
for
the
Do-it-Yourself
Owner
.

2
.
Warm
up
drivetrain
by
running
engine
until
ATF
reach-

es
specified
temperature
.
Apply
brake
and,
while
idling
engine,
shift
through
all
gears
severa¡
times
.
Turn
en-
gine
off
.

ATF
Level
Checking

"
Fluid
temperature
..
...........
30-55°C
(86-131°F)

3
.
Remove
ATF
fill
plug
.
Place
transmission
in
neutral
and



ATF,draining
and
filling
restart
engine
.
See
Fig
.
1
or
Fig
.
2
.

Fig
.
1
.



ATF
fill
plug
(A)
on
MS
270R/A4S310R
transmissions
.

4
.
With
ATF
at
specified
temperature,
add
(luid
until
it
spilis
from
fill
hole
.

WARNING
-

HotATFcan
scald
.
Weareye
protection
and
protec-
tive
clothing
and
gloves
duringthe
check
.
If
thetransmission
was
overfilled,
hot
ATF
will
spill
from
the
filler
hole
when
the
fill
plug
is
removed
.

5
.
Reinstall
fill
plug
using
new
sealing
ring
.

TRANSMISSION
SERVICE

011743

0011742

Fig
.
2
.



ATF
drain
plug
(A)
and
fill
plug
(B)
on
A5S
310Z
transmission
.

Tightening
Torques

"
ATF
fill
plug
to
ATF
sump

MS
270R/A4S
31
OR
.............
33
Nm
(24
ft-Ib)
MS
310Z
(M30
plug)
............
100
Nm
(74
ft-Ib)

The
procedure
given
here
includes
removal
and
installation

of
the
ATF
(luid
strainer
(filter)
.

1
.
Remove
drain
plug
and
drain
fluidinto
container
.
See
Fig
.
3
or
Fig
.
2
given
earlier
.

0~
0

/\1--Z
.IZ
~
~

A



~
"o



15/

Fig
.
3
.



ATF
drain
plug
(A)
on
A4S
270R/A4S
310R
.

WARNING
-

The
ATF
must
not
be
hot
when
draining
.
Do
not
drain
the
ATF
if
the
engineandlor
transmission
Is
hot
.
Hot
ATF
can
scald
.
Wear
eye
protection,
pro-
tective
clothing
and
gloves
.

0011595

340-2
BRAKES

When
troubleshooting,
keep
in
mind
that
tire
inflation,
wear

and
temperature
can
affect
braking
and
suspension
.
See310

Front
Suspension
for
more
information
on
front
suspension

parts
inspection
.

Table
a
lists
symptoms
of
brake
problems,
their
probable

causes,
and
suggested
corrective
actions
.

Table
a
.
Brake
System
Troubleshooting

Symptom



1



Probable
cause



1



Repairs

Brake
squeal



a
.
Incorrectly
installed
brake
pads
or



a
.
Check
component
installation
.
parking
brake
shoes
b
.
Brakepad
carriers
dirty
or
corroded



b
.
Remove
brake
pads
and
clean
calipers
.
c
.
Brake
pad
anti-rattle
springs
faulty
or



c
.
Install/replace
anti-rattle
springs
.
missing
d
.
Brakepads
heat-glazed
or
oil-soaked



d
.
Replace
brake
pads
.
Clean
rotors
.
Replace
leaking
calipers
as
required
.
e
.
Wheel
bearings
worn
(noise
most



e
.
Replace
worn
bearings
.
See310
Front
Suspension
pronounced
when
turning)



or
330
Rear
Suspension
.

Pedal
goes
to
f
loor
when
braking



a
.
Brake
fluid
leve¡
low
due
to
system



a
.
Check
fluidlevel
and
inspect
hydraulic
system
for
leaks



signs
of
leakage
.
Fill
and
bleed
system
.
b
.
Master
cylinder
faulty



I
b
.
Replacemaster
cylinder
.

Low
pedal
after
system
bleeding



1
a
.
Master
cylinder
faulty



1
a
.
Replace
master
cylinder
.

Pedal
spongy
or
brakes
work
only



a
.
Air
in
brake
fluid



a
.
Bleedsystem
.
when
pedal
is
pumped



b
.
Master
cylinder
faulty
(interna¡
return



b
.
Replacemaster
cylinder
.
spring
weak)
c
.
Leaking
line
or
hose
unions



c
.
Repair
or
replace
lines
and
hoses
.
Bleed
system
.

Excessive
braking
effort



a
.
Brake
pads
wet



a
.
Use
light
pedal
pressure
to
dry
pads
while
driving
.
b
.
Brake
pads
heat-glazed
oroil-soaked



b
.
Replace
brake
pads
.
Clean
rotors
.
Replace
leaking
calipers
.
c
.
Vacuum
booster
or
vacuum
hose
con-



c
.
Inspect
vacuum
lines
.
Test
vacuum
booster
and
re
nections
to
booster
faulty



place
as
required
.
Test
vacuum
non-return
valve
for
one-way
air
flow
.

Brakes
pulsate,
chatter
or
grab



a
.
Warped
brake
rotors



a
.
Resurface
or
replace
rotors
.
b
.
Brake
padsworn



b
.
Replace
brake
pads
.
c
.
Brake
pads
heat-glazed
or
oil-soaked



c
.
Replace
brake
pads
.
Clean
rotors
.
Replace
leaking
calipers
.

Uneven
braking,
car
pulís
to
one



a
.
Incorrect
tire
pressures
or
worn
tires



a
.
Inspect
tire
condition
.
Check
and
correct
tire
pres-
side,
rear
brakes
lock



sures
.
b
.
Brake
pads
on
one
side
of
car
heat-



b
.
Replace
brake
pads
.
Clean
rotors
.
Replace
leaking
glazed
or
oil-soaked



calipers
.
c
.
Caliper
or
brake
pads
binding



c
.
Clean
and
recondition
brakes
.
d
.
Worn
suspension
components



d
.
Inspect
for
worn
or
damaged
suspension
compo-
nents
.
See
310
Front
Suspension
or
330
Rear
Sus-
pension
.

Brakes
drag,
bind
or
overheat



a
.
Brake
caliper
or
brake
pads
binding



a
.
Clean
or
replace
caliper
.(
b
.
Master
cylinder
faulty



b
.
Replacemaster
cylinder
.

WARNING
-

On
cars
with
All
Season
Traction
(AST),
special
BMW
service
equipment
is
required
to
properly
bleed
the
ABS/AST
system
.
For
safety
reasons,
the
brake
system
on
carswith
ABS/AST
must
not
be
bled
using
the
procedures
described
inthis
repair
group
.

BLEEDING
BRAKES

Brake
bleeding
is
usually
done
for
one
of
two
reasons
:
Ei-
ther
to
replace
oíd
brake
fluid
as
part
of
routine
maintenance
or
to
expel
trapped
air
in
the
system
that
resulted
from
open-
ingthe
brake
hydraulic
system
during
repairs
.

BLEEDING
BRAKES

Alwaysuse
new
brake
fluid
from
an
unopened
container
.It

is
important
to
bleed
the
entire
system
when
any
part
of
the

hydraulic
system
has
been
opened
.
On
cars
not
equipped
with
traction
control
(AST),
brake
system
bleeding
should
be

done
with
a
pressure
bleeder
.
On
cars
with
AST,
brake
bleed-

ing
should
be
done
by
an
authorized
BMW
dealer
.

WARNING
-

On
cars
with
All
Season
Traction
(AST),
special
BMW
service
equipment
is
requíred
to
properly
bleed
the
ABS/AST
system
.
For
safetyreasons,
the
brake
system
on
carswith
ABS/AST
must
not
be
bled
using
the
procedures
described
inthís
repair
group
.

Ambient
temperaturelclock

MÍM
Aa
.Mi}rm
-Mil"
IMua~naa~u~itacar
"
za
.~

Central
Body
Electronics

0013028

Fig
.
4
.



Different
versionsof
Multi-information
Display(MID)
installed
in
E36
cars
.

The
E36
cars
are
equipped
with
a
sophisticated
centralized

body
electric/electronics
plan
.
The
system
is
self-diagnostic

and
incorporates
many
functions
into
a
single
control
module
.

The
consolidation
of
several
systems
into
a
single
control

module
minimizes
power
requirements
and
the
incorporation

of
the
diagnostic
link
results
in
more
efficient
and
accurate

troubleshooting
.

Self-diagnostic
codes
are
accessible
electronically
through

the
data-link
connector
in
the
engine
compartment
.
See610

Electrical
Component
Locations
.

BODY-GENERAL
400-
5

Two
versions
of
central
body
electronics
are
used
depend-

ing
on
model
year
.

1992
and
1993
models
are
equipped
with
a
central
locking

module
(ZVM)
which
incorporates
control
of
the
following
sys-

tems
:

"Interiorlighting
"
Central
locking
with
double
lock
feature

"
Output
relays
for
powerwindows
and
sunroof

"
Electronic
power
protection

E36
cars
since
the
1994
model
year
are
equipped
with
ZKE

IV
.
This
is
an
electronic
comfort
and
convenience
system
that

includes
the
following
additional
features
:

"
One
touch
up/down
power
window
operation

"
Power
window
and
sunroof
closure
from
driver
or
pas-

sengerdoor
lock

"
Vehicle
locking
or
unlocking
from
the
trunk
lock
.

Other
features
of
the
system
are
discussed
in
515
Central

Locking
and
Anti-Theft
.

Electronic
Immobilization
System

Beginning
in
model
year
1994,
all
E36
vehicles
incorporate

adriveaway
protection
system
regardless
of
whether
the
vehi-

cle
is
equipped
with
a
BMW
Alarm
System
or
an
On-Board

computer
.
Two
types
of
factory
systems
were
installed,
de-
pending
on
vehicle
production
date
.

On
the
early
system
(model
year
1994
up
to
January
1995),

the
ignition
and
fuel
injection
functions
are
disabled
whenever

the
vehicle
is
locked
in
the
double
lock
mode
.
This
is
referred

lo
as
EWS
or
EWS
I
.

Beginning
in
January
1995,
the
driveaway
protection
sys-

tem
was
upgraded
to
a
more
sophisticated
system,
called

EWS
II
.
This
system
uses
a
wireless
communication
link
be-

tween
a
transponder
chip
in
the
ignition
keyand
the
ring
an-

tenna
surrounding
the
ignition
switch
.
The
EWS
II
control

module
blocksthe
starting
of
the
vehicle
unlessthe
correct

coded
ignition
key
is
used
.

For
further
information
about
drive
away
protection
sys-

tems,
see
515
Central
Locking
and
Anti-Theft
.

INTERIOR
EQUIPMENT

GENERAL
.
.
.
.
.
.
.
.
.
...
.
..
.
...
.
.........
510-1



Front
bumper
impact
absorber,
replacing
....
510-4

Rear
bumper,
removing
and
installing



.....
.510-4

OUTSIDE
REAR
VIEW
MIRRORS
.
...
.
.....
510-1



Rear
bumper
impact
absorber,
replacing
...
.
510-6
Outside
mirrorglass,
replacing



.
.
.........
510-1



Bumper
height,
adjusting



...
.
...
.
...
.
.
.
.
.
510-6
Outside
mirror
housing,
removing
and
installing
....
.
.....
.
.
.
.
.
.
510-1



EXTERIOR
TRIM



...
.
.
.
.
.
.
.
.
.
.
.
...
.
.
.
.
.
510-6
Outside
mirror,
removing
and
installing
.
.
.
.
.
510-2



BMW
embiem,
removing
and
installing
.
.
.
.
.
.
510-7

Body
side
molding,
replacing



.
.
.
.
.
.
.
.
.
.
.
.
.
510-7
BUMPERS



.
.
.
.
.
....
.
.....
.
.....
.
.
.
.
.
.
510-3



Radiator
grille,
removing
and
installing
.
.
.
.
.
.510-7
Front
bumper,
removing
and
installing
.
.
.
.
.
.
510-3



Front
panel,
removing
and
installing
...
.
.
.
.
.
510-7

GENERAL

510
Exterior
Trim,
Bumpers

This
repair
group
includes
repair
information
for
the
outside

rear
view
mirror,
front
and
rear
bumpers,
and
the
easily
re-

movable
exterior
trim
parts
.

OUTSIDE
REAR
VIEW
MIRRORS

The
remove
controlled
mirrors
come
in
two
styles
:
heated
and
unheated
.
Many
of
the
mirror
components
are
separately

available
from
an
authorized
BMW
dealer,
including
the
glass

and
outside
plastic
housing
.

Outside
mirror
glass,
replacing

CAUTION-

Mirror
shouldbe
ator
above
room
temperature
before
removal
.
Otherwise,
small
plastic
parts
or
glass
will
break
.

1
.
Insert
thin
pry
tool
(wooden
or
tape-wrapped
screwdriv-

er)
between
bottom
mirror
edge
and
mirror
housing
and

carefully
pry
out
mirror
glass
from
housing
.
See
Fig
.
1
.

2
.
Heated
mirror
:
remove
heating
element
harness
con-

nectors
from
back
of
mirror
glass
.

3
.
Install
new
glass
into
position
by
pressing
firmly
until
it

snaps
into
place
.

EXTERIOR
TRIM,
BUMPERS



510-1

00130
..

Fig
.1
.
Prying
mirror
glass
out
of
mirror
housing
.
Note
screwdriver
shaft
wrapped
with
tape
.

Outside
mirror
housing,

removing
and
installing

1
.
Remove
mirror
glass
as
described
above
.

2
.
Remove
housing
retaining
screws
and
lift
off
rear
hous-
ing
.
See
Fig
.
2
.

3
.
Tilt
mirror
housing
forward
and
compress
plastic
retain-

ers
and
lift
off
front
housing
.
See
Fig
.
3
.

4
.
Installation
is
reverse
of
removal
.
Check
mirror
function

before
installing
covering
parts
.

OUTSIDE
REAR
VIEW
MIRRORS

510-4



EXTERIOR
TRIM,
BUMPERS

Fig
.
8
.



Bumper
cover
retaining
screws
(arrows)
in
left
wheel
weil
.

7
.
Disconnect
harnessconnectors
at
outside
temperature



0013052

sensor
at
rear
of
left
side
of
bumperand
temperatura



Fig
.
9
.



Front
bumper
impact
absorber
mounting
nuts
(A)
and

switch
at
rear
of
right
side
of
bumper
(if
applicable)
.



bumper
bracket
hardware
(B)
.

8
.
Slide
bumper
straight
off
sida
brackets
.

9
.
Installation
is
reverse
of
removal,
notingthe
following
:



When
removing
and
installing
therear
bumper
or
its
compo-

"
Slide
side
brackets
on
bumper
and
body
carefully
to-



nents,
referto
Fig
.
10
.

gether
.

"
Make
sure
tabs
on
trim
strip
engage
slots
in
bumper



1
.
Raise
and
properly
support
vehicle
.

correctly
.

Tightening
Torque

"
Bumper
to
bumper

bracket
(M8
nut)
............
...
.
.
22
Nm
(16
ft-Ib)

2
.
Working
under
bumper,
remove
screws
or
expansion

Front
bumper
impact
absorber,replacing



rivetsat
corners
and
middle
of
lower
bumper
panel
.
Pull

panel
backward,
uncoupling
it
from
bumper
cover
.
See

Thebumper
mounting
bracket
and
impact
absorber
mount-



Fig
.
11
.

ing
hardware
are
accessible
with
the
Font
bumper
removed,
as
described
above
.
See
Fig
.
9
.



3
.
Remove
bumper
cover
expansion
rivets
and
screws
in-

side
left
and
right
rear
wheel
wells
.

NOTE
-

Install
the
bumper
bracket
boltwith
thread
locking
com-
pound
suchas
Loctite
8
270
or
equivalent
.

Tightening
Torques

"
Bumper
bracket
to
impact
absorber

(M10
nut)
.
..
.
...
.............:.
55
Nm
(41
ft-Ib)
"
Impact
absorber
to
chassis
(M6
nut)
...
9
Nm
(7
ft-Ib)

BUMPERS

Rear
bumper,
removing
and
installing

WARNING
-

Make
sure
that
the
car
is
firmly
supported
on
jack

stands
designad
for
the
purpose
.
Place
the
jack

stands
beneath
a
structural
chassis
point
.
Do
not

place
jack
stands
under
suspension
parts
.

4
.
Remove
left
and
right
bumper
bracket
mounting
bolts

and
remove
bumper
.
See
Fig
.
12
.

5
.
Installation
is
reverse
of
removal
.

NOTE-

Install
the
bumper
bracket
bolt
with
thread
locking
com-
pound
suchas
Loctite®270
or
equivalent
.

600-2



ELECTRICAL
SYSTEM-GENERAL

CAUTION
-

"
Always
turn
off
the
engine
and
disconnect
the

negative
()
cable
from
the
batterybefore
remov-

ing
any
electrical
components
.
Disconnecting
the

battery
may
erase
fault
code(s)
stored
in
control

module
memory
.
Check
for
fault
codes
using
spe-
cial
BMW
diagnostic
equipment
.

"
Prior
to
disconnecting
the
battery,
read
the
bat-

tery
disconnection
cautions
given
at
the
front
of

this
manual
onpage
viii
.

"
Connect
and
disconnect
ignition
system
wires,
multiple
connectors,
and
ignition
test
equipment
leads
only
while
the
ignition
is
off
.

"
Do
not
disconnect
the
battery
with
engine
run-

ning
.

"
Do
not
quick-charge
the
battery
(for
boost
start-
ing)
for
longer
than
one
minute,
and
do
not
ex-
ceed
16
.5
volts
at
the
battery
with
the
boosting
cables
attached
.
Wait
at
feast
one
minute
before
boosting
the
battery
a
second
time
.

"
Do
not
usea
test
famp
that
has
a
normal
incan-

descent
bulb
to
test
circuits
contafning
electronic
components
.
The
high
electrical
consumptionof
these
test
lamps
may
damage
the
components
.

"
Do
not
use
an
analog
meter
.
Use
onfy
a
digital
multimeter
.

"
Many
of
the
solid-state
modules
are
static
sensi-
tive
.
Static
discharge
will
permanently
damage
them
.
Always
handle
the
modules
using
proper
static
prevention
equipment
and
techniques
.

"
To
avoid
damaging
harness
connectors
or
relay
panel
sockets,
use
jumper
wires
with
flat-blade
connectors
that
are
the
same
size
as
the
connec-
tor
or
relay
terminals
.

"
Always
switch
a
digital
multimeter
to
the
appropri-
ate
function
and
range
before
making
test
con-
nections
.

"
Do
not
tryto
start
the
engine
of
a
carwhich
has
been
heated
above176°F
(80°C),
(for
example,
in
a
paint
dryingbooth)
.
Allow
it
to
cool
to
normal
temperature
.

"
Disconnect
the
battery
before
dolng
any
electric
welding
on
the
car
.

"
Do
not
wash
the
engine
while
it
is
runnfng,
or
any-
time
the
ignition
is
switched
on
.

WIRING
DIAGRAMS

Electrical
Test
Equipment

Many
of
the
electrical
tests
described
in
this
manual
call
for

measuring
voltage,
currentorresistanceusing
a
digital
multi-

meter
(DMM)
.
Digital
meters
are
preferred
for
precise
mea-

surements
and
for
electronics
work
because
they
are
generally
more
accuratethan
analog
meters
.
The
numerical

display
is
alsoless
likely
to
be
misread,
since
there
is
no
nee-

dle
position
to
be
misinterpreted
by
reading
at
an
angle
.

An
LED
test
light
is
a
safe,
inexpensive
tool
that
can
be
used

to
perform
many
simple
electrical
tests
that
would
otherwise

require
a
digital
multimeter
.
The
LED
indicates
when
voltage

is
present
between
anytwo
test-points
in
a
circuit
.

CA
UTION-

"
Choose
test
equipment
carefully
.
Use
a
digital

multimeter
with
at
leadt
10
megaohm
input
im-

pedance,or
an
LED
test
light
.
An
analog
meter
(swing-need1e)
ora
test
light
with
a
normal
incan-
descent
bulb
may
draw
enough
current
to
dam-
age
sensitive
electronic
components
.

"
An
ohmmeter
must
not
beused
to
measure
resis-
tance
on
solidstate
components
suchas
controlunits
or
time
delay
relays
.

"
Always
disconnect
the
battery
before
making
re-

sístance
(ohm)
measurements
on
the
circuit
.

WIRING
DIAGRAMS

The
wiring
diagrams
shown
in
Electrical
Wiring
Diagrams

have
been
specially
designed
to
enable
quick
and
efficientdi-

agnosis
and
troubleshooting
of
electrical
malfunctions
.

Wiring
Codes
and
Abbreviations

A
lot
of
information
is
included
in
each
wiring
diagram
if
you
know
how
to
read
them
.
Wire
colors
in
the
diagrams
are
ab-

breviated
.
Combined
color
codes
indicate
a
multi-colored
wire
.
For
example
the
code
BLU/RED
indicates
a
Blue
wire

with
a
Red
stripe
.

Many
electrical
components,
connectors,
fuses,
and

ground
locations
are
identified
using
a
unique
number
.
Each

of
there
numbers
corresponds
to
a
particular
part
in
the
circuit
commonly
found
in
Electrical
Wiring
Diagrams
.

1
.
Heater
valves
2
.
ABS
pedal
travel
sensor3
.
ABS
pump

Fig
.
10
.
Left
rear
of
engine
compartment
.

4
.
Main
engineharness
con-
nector
5
.
Power
distribution
box

ELECTRICAL
COMPONENT
LOCATIONS
610-5

0013202
0013226

Fig
.
11
.
M42
engine
idie
speed
control
valve
(arrow)
beneath
intake
manifold

0012421

Fig
.
12
.
M44
engine
intake
air
temperature
(¡Al)
sensor
in
air
filter
housing

Fig
.
13
.
M50/S50U
S
engine
intake
air
temperature
(IAT)
sensor
(1)
and
throttle
position
sensor
(2)
.

301180

0012724

Fig
.
14
.
M52/S52U
S
engine
intake
air
temperature
(IAT)
sensor
in
bot-
tom
of
intake
manifold
(throttle
housing
shown
removed)
.

COMPONENT
LOCATIONS

Fig
.
19
.
M44
engine
coolant
temperature
(ECT)
sensor
(arrow)
.



Fig
.
22
.
Headlight
ground
at
left
frontof
engine
compartment
(arrow)
.

0012704

Fig
.
20
.
M52
engine
coolant
temperature
(ECT)
sensor
(A)
is
located
beneath
top
enginecover
(B)
and
crankcase
vent
hose
(C)
.

uu12700

Fig
.
21
.
M52
throttle
position
sensor
(A),
idle
speed
control
valve
(B),
and
secondary
air
pump
(C)
.

ELECTRICAL
COMPONENT
LOCATIONS



610-7

00119s4



0013131

uvijijo
Fig
.
23
.
Mainground
at
right
strut
tower
(A)
.
B
is
negative
jumper
con-
nection
.

COMPONENT
LOCA
TIONS

610-10



ELECTRICAL
COMPONENT
LOCATIONS

Component



Model
Year



Location



Refer
to

ABS
Hydraulic
Control
Unit



1992-1998



Left
rear
engine
compartment
undermaster
cylinder



Fig
.
7
.
Fig
.
10
.

ABS
Hydraulic
Control
Unit
Relay



1992-1998



Power
distribution
box



Fig
.
2
.

ABS
Pedal
Travel
Sensor



1992-1998



On
brake
booster
beside
master
cylinder



Fig
.
10
.

ABS
Relay



1992-1998



Power
distribution
box



Fig
.
2
.

ABS/AS
T
(Traction)
Control
Module



1992-1998



Behind
glove
compartment



Fig
.
8
.
Fig
.
9
.

ABS
Speed
Sensor,
Left
Front



1992-1998



Left
front
steering
arm



Fig
.
31
.
Wheel

ABS
Speed
Sensor,
Left
Rear



1992-1998



Left
rear
trailing
arm
Wheel

ABS
Speed
Sensor,
RightFront



11992-1998



Right
front
steering
arm
Wheel

ABS
Speed
Sensor,
Right
Rear



1992-1998



I
Left
rear
trailing
arm
Wheel
1

A/C
Compressor



1
1992-1998



(
Rightlower
frontof
engine

A/C
Compressor
Control
Relay



1
1992-1998
1992-1998
1992-1998

A/C
Control
Module

A/C
Evaporator
Temperature
Sensor
A/C
Pressure
Switch



1992-1998



Right
frontof
engine
compartment

A/C
Program
Switch



1992-1998



Center
of
dash
below
radio

A/CRecharging
Ports



1992-1998



Right
rear
engine
compartment



Fig
.
16
.

Air
Flow
Sensor



1992-1998



Between
throttle
housing
&
filter
housing



Fig
.
7
.

Airbag
Contact
Slip
Ring



1992-1998



Rear
ofsteering
wheel

Airbag,
Driver



1992-1998



In
center
of
steering
wheel



Fig
.
25
.

Airbag,
Passenger



1994-1998



Right
front
of
dash
above
glove
compartment



Fig
.
26
.

Airbag,
Side-Impact



1997-1998



Behind
right/left
front
door
panel
Airbag
Control
Module
(Basic)



1992-1993



Behind
glove
compartment



Fig
.
8
.
Fig
.
9
.

Airbag
Control
Module
(ZAE)



1994-1998



On
center
tunnel
under
rear
seat
cushion

Airbag
Crash
Sensor,
Airbag



1992-1993



On
righUleft
front
strut
tower
Airbag
Crash
Sensor,
Right/Left



1997-1998



Right/left
door
si¡¡
behind
front
seatSide
Impact

Alternator
(Generator)



1992-1998



Left
lowerfront
of
engine

Amplifier
Hi-fi



1992-1998



Left
front
side
of
luggage
compartment

Antenna
Amplifier
AM/FM



1992-1998



In
upper
left
side
C-pillar



Fig
.
27
.

COMPONENT
LOCA
TIONS

Table
a
.
E36
Component
Locations

Power
distribution
box



Fig
.
2
.

Behind
center
console

Left
sideof
heater
box

Continued