turn signal BMW 318i 1997 E36 User Guide

130-
1
4



FUEL
INJECTION

NOTE-

Be
sure
to
retrieve
thrust
washer
behind
fuel
pressure
regulator
on
6-cylinder
engine
.

4
.
Installation
is
reverse
of
removal
.
Replace
O-rings
.

Fuel
pressure
regulator,
replacing

(under
car
mount)

WARNING
-

Fuel
will
be
discharged
.
Do
not
disconnect
any
wires
that
could
cause
electrical
sparks
.
Do
not
smoke
or
work
near
heaters
or
other
fire
hazards
.
Keep
an
approved
tire
extinguisher
handy
.

On
late
4-
and
6-cylinder
cars,
the
fuel
pressure
regulator
is

mounted
beneath
the
left
sideof
the
car,
under
a
protective

cover
.
See
Fig
.
20
.

0012726

Fig
.
20
.
Fuel
pressure
regulatorlocation
underneath
car
(arrow)
.
Vac-
uum
hose
to
regulator
is
shown
at
A
.
(Protective
cover
has
been
removed
.)

5
.
Installation
is
reverse
of
removal
.
Replace
O-rings
.

BOSCH
DME
Ml
.
7
COMPONENT
TESTS
AND
REPAIRS

BOSCH
DME
Ml
.7
COMPONENT

TESTS
AND
REPAIRS

CA
UTION-

Use
only
a
digital
multimeter
when
testing
compo-
nents
and
wiring
.
Use
of
an
analog
VOM
may
damage
the
engine
control
module
.

4-cylinder
cars
with
M42
engines(1992
to
1995)use
the

Bosch
DME
M1
.7
fuel
injection
system
.

Electrical
tests
of
the
main
and
fuel
pump
relays
and
the

DME
engine
control
module
(ECM)
are
covered
earlier
in
this

section
.
Fuel
pump
tests
arecovered
in
160
Fuel
Tank
and

Fuel
Pump
.

Air
flow
sensor,
testing
and
replacing

DME
M1
.7
fuel
injection
uses
a
volume
air
flow
type
sensor

with
integrated
intake
air
temperature
(IAT)
sensor
.
The
sen-

sor
provides
a
varyingvoltage
signal
to
the
ECM
based
on
the

position
of
the
air
vane
.
As
the
vane
doorswings
open
thepo-
tentiometer
increases
the
voltage
signal
to
the
ECM
.
The
IATsensor
adapts
theoutput
signal
to
the
ECM
based
on
intake

air
temperature
.

1
.
Check
ECM
reference
voltage
to
sensor
:

"
Peel
back
rubber
boot
from
air
flow
sensor
harness

connector
.

"
Turn
ignition
keyon
.
"
Check
for
5
volts
between
terminal
1
of
harness
con-
nector
and
ground
.
See
Fig
.
21
.

"
Turn
ignition
key
off
.

"
If
voltage
is
not
present
or
incorrect,
check
wring
from

ECM
and
check
air
flow
sensor
reference
voltage
out-

put
at
ECM
.
See
Table
h
.
1
.
Working
under
car
below
driver's
seat,
remove
protec-
tive
cover
from
below
fuel
pressure
regulator
.

"
Remove
intake
air
bootfrom
sensor
.
2
.
Remove
vacuum
hosefrom
fuel
pressure
regulator
.



"
Connect
a
digital
multimeter
(ohms)
across
terminais
1

and
2
.
Swing
air
flow
sensor
vane
through
its
travel
3
.
Remove
locking
clip
retaining
fuel
pressure
regulator
.



range
.
Resistance
should
change
steadily
without
in-

terruption
.
4
.
Wrap
a
shop
rag
around
regulator,
then
remove
regula-



"
If
any
faults
are
found,
the
air
flow
sensor
is
faulty
and
tor
from
213
way
valve
by
pullingstraight
out
.



should
be
replaced
.

2
.
Check
air
flow
sensor
potentiometer
:

3
.
Check
IAT
sensor
resistance
:

"
With
harness
connector
disconnected
at
air
flow
sen-
sor,
check
resistance
across
sensor
terminais
4
and
5

of
air
flow
sensor
.
Compare
tests
results
to
values
in
Table
d
given
later
.
If
any
faults
are
found,
the
air
flow
sensor
should
be
replaced
.

130-
1
6



FUEL
INJECTION

Throttie
position
sensor
(TPS),



Idie
speed
control
valve,
testing
and
replacing



testing
and
replacing

The
throttie
position
sensor
(TPS)
is
mounted
on
the
side
of



¡die
speed
is
maintained
by
the
ECM
via
the
¡die
speed
con-

the
throttie
housing
and
is
directly
connected
to
the
throttie



trol
valve
.
See
Fig
.
24
.
¡die
speed
is
adaptive
through
the
valve
shaft
.
The
ECM
sends
a
voltage
signal
to
the
potentiom-



ECM
and
no
¡die
speed
adjustments
can
be
made
.
Before
eter-type
sensor
and
monitors
the
voltage
that
comes
back
.



testing
the
valve,
confirm
that
the
throttie
position
sensor(TPS)
is
working
correctly
.

Check
TPS
function
by
disconnecting
the
harnessconnec-

tor
and
checking
reference
voltage
and
sensor
resistance
.

See
Table
e
and
Fig
.
23
.
If
voltage
is
not
present,
check
the

output
voltage
signal
from
the
ECM
and
check
the
wiring
be-
tween
the
sensor
and
the
ECM
.
If
the
sensor
resistance
is
in-
correct,
replace
the
throttie
position
sensor
.

NOTE
-

The
throttie
position
sensor
is
not
adjustable
.
If
test
re-
sults
are
íncorrect,
the
sensor
should
be
replaced
.

Table
e
.
Throttle
Position
Sensor
Tests

(DME
1
.7)

Testconditions



1
Terminais



1
Test
value

Harness
connec-



(
1
and
ground
in



15
VDC
(approx
.)
tor
disconnected,



harness
connector
ignition
on

0013235

Fig
.
23
.
Throttieposition
sensor
terminal
identification
on
M42
engine
.

Harnessconnec-



I
1
and
3
at
sensor



(
4k
ohms
(approx
.)
tor
disconnected,



terminais
ignition
off
Connector
dis-



1
and
2
at
sensor



Continuously
vari-
connected,
igni-



terminais



able
from
1-4
k
tion
off
.
Throttle



ohms
(approx
.)
with
rotated
from
¡die



out
interruption
to
fui]
position

BOSCH
DME
Ml
.
7
COMPONENT
TESTS
AND
REPAIRS

Fig
.
24
.
¡die
speed
control
valve
(arrow)
on
M42
engine
.

NOTE
-

"
The
tests
given
below
are
electrical
checks
only
.
They
do
not
check
the
mechanical
operation
of
the
valve
or
if
the
valve
is
sticking
or
worn
.
If
the
valve
is
suspect,
substituting
a
known
good
valve
is
the
best
way
to
check
for
amechanical
fault
.

1
.
Check
battery
(+)
voltage
to
valve
:

0013226

"
Disconnect
harness
connector
from
valve
.
"
Check
for
battery
voltage
at
terminal
2
(red/white
wire)
.
"
If
voltage
is
not
present
check
wiring
between
valve
and
main
relay
(terminal
87)
.

2
.
Check
that
ECM
signal
is
reaching
valve
:

"
With
engine
running,
check
that
¡die
speed
control
valve
is
audibly
buzzing
.
"
If
valve
is
not
working,
disconnect
wiring
harness
con-
nector
.

"
Connect
12V
probe
light
across
connector
terminais
.
"
Turn
ignition
key
on
;
probe
should
light
.
lf
probe
does
nof
light,
check
the
wiring
from
the
ECM
(pin
29)
to
the
valve
.
See
Table
h
.
lf
probe
does
light
but
¡die
quality
is
poor,
the
valve
is
most
likely
sticking
and
or
worn
and
should
be
replaced
.

Table
f
.
Engine
Coolant
TemperatureSensor
or

Intake
Air
TemperatureSensor
Test
Values

(DME
3
.113
.3
.1)

Test
temperatures



Resistance
(k
ohms)

14±
2°F
(-10
±
1'C)



7-11
.6

68±
2°F
(20
±
1'C)



2
.1
-2
.9

17612°F
(80
t
V
C)



0
.27-0
.40

NOTE

The
test
values
listed
represent
only
three
test
points
from
a
continuous
resistance
NTC
sensor
.
Check
the
full
linear
response
to
increasing
temperatures
as
the
engine
warms
up
.

3
.
If
ECT
sensor
fails
these
tests,
it
is
faulty
and
should
be

replaced
.
If
no
faults
are
found,
reconnect
electrical

harness
.

WARNING
-

Do
not
replace
the
ECT
sensor
unless
the
engine
is

cold
.
Hot
coolant
can
scald
.

NOTE-

Use
"



a
new
copper
sealing
washer
when
installing
sensor
.
Replace
any
lost
coolant
.

Tightening
Torque

"
Engine
coolant
temperature
sensor

to
cylinder
head
.........
..
.
..
...
13
Nm
(10
ft-lb)

Intake
air
temperature
(IAT)
sensor,

testing
and
replacing

The
intake
air
temperature
(IAT)
sensor
signal
is
usedasa

correction
factor
for
fuel
injection
and
ignition
timing
.
Thissen-

sor
is
mounted
in
the
intake
manifold
behind
the
throttle
posi-

tion
switch
.
See
Fig
.
28
.

Check
TPS
function
by
disconnecting
theharnessconnec-
1
.
Check
that
ECM
reference
voltage
is
reaching
IAT
sen-



tor
and
testing
continuity
across
the
terminalswhile
changing
sor
:



the
throttle
position
.
Resistance
test
values
are
listed
below
.
If

"
Disconnect
IAT
sensor
harness
connector
.



the
resuits
are
incorrect,
replace
the
throttle
position
sensor
.

"
Turn
ignition
keyon
.



See
Fig
.
29
.

"
Check
for
5
volts
between
supply
voltage
wire
of
har-

ness
connector
and
ground
.
NOTE-
"
Turn
ignition
key
off
.
The
throttle
position
sensor
is
not
adjustable
.
If
test
re-
sults
are
incorrect,
the
sensor
should
be
replaced
.

IAT
Sensor
Supply
Voltage

"
M50/S50US
engines
.
........
grey
wire
and
ground

FUEL
INJECTION



130-19

Fig
.
28
.
Intake
air
temperature
sensor
location
on
M50/S50US
engine
(arrow)
.

If
voltage
is
not
present
or
incorrect,
check
wiring
from
ECM

and
check
reference
voltage
signal
at
ECM
(pin
77)
.
See
Ta-

ble
i
or
Table
j
.

2
.
Check
IAT
sensor
resistance
:

"
With
harness
connector
disconnected,
check
resis-

tance
acrosssensor
terminals
.
Compare
tests
resuits
to
values
in
Table
f
given
earlier
.

"
If
IAT
sensor
fafs
thistest
it
is
faulty
and
should
be
re-

placed
.

3
.
If
no
faults
are
found,
reconnect
electrical
harness
.

Throttle
position
sensor
(TPS),

testing
and
replacing

The
throttle
position
sensor
(TPS)
is
mounted
on
the
side
of

the
throttle
housing
and
is
directly
connected
to
the
throttle

valve
shaft
.
The
ECM
sends
a
voltage
signal
to
the
potentiom-

eter-type
sensor
and
monitors
the
voltage
that
comes
back
.

BOSCH
DME
M3
.
1
AND
M32
.1
COMPONENT
TESTS
AND
REPAIRS

130-20



FUEL
INJECTION

Fig
.
29
.
Throttleposition
sensor
terminal
identification
on
M50
engine
.

Tableg
.
Throttle
Position
Sensor
Tests

(DME3
.113
.3
.1)

Test
conditions



I
Terminals



I
Testvalue

Harness
connector



13
andground



15
VDC
(approx
.)
disconnected,
igni-



in
harness
tion
on



connector

Harness
connector



1
and3
at
sen-
14
k
ohms
(approx
.)
disconnected,
igni-



sor
terminals
tion
off

Throttle
plate
rotat-



1
and
2
at
sen-



Variable
from
1
-
4ked
from
¡dieto
full



sor
terminals



ohms
(approx
.)
with-
throttle
position



out
interruption



¡die
Speed
Control
Valve
Coil
Resistance
Values

"
M50/S50US
engine

NOTE-



Terminals
1
and
2
..
.
................
20
t
5
ohms

On
cars
with
tractioncontrol,
do
not
confuse
the
throttle



Terminals
2
and
3
...................
20
t5
ohms
position
sensor
on
the
main
throttle
body
with
the
throt-



Terminals
1
and
3
..
.
..
:
............
.40
t
5
ohms
tle
positionswitch
on
the
secondary
throttle
body,
where
applicable
.

¡die
speed
control
valve,
testing

¡die
speed
is
maintained
by
the
ECM
through
the
¡die
speed
control
valve
.
The
¡die
controlfunction
compensates
for
engine
load
and
engine
operating
conditions
.
¡die
speed
is
adaptive
through
the
ECM
and
no
¡die
speed
adjustments
can
be
made
.

NOTE-
Before
testing
the
valve,
confirm
that
the
throttle
position



The
idle
speed
controlvalve
receives
positive
(+)
bat-
sensor
is
working
correctly
.



tery
voltage
from
the
main
relay
.

BOSCH
DME
M3
.
1
AND
M3
.3
.1
COMPONENT
TESTS
AND
REPAIRS

NOTE-

"
The
tests
given
below
are
electrical
checks
only
.
They

do
not
check
the
mechanical
operation
of
the
valve
.
If
the
valve
is
suspected
of
causing
poor
idie,
substitut-
ing
a
known
good
valve
is
the
best
way
to
check
for
a
mechanical
fault
.

1
.
With
engine
running,
check
that
¡die
speed
control

valve
is
buzzing
.

2
.
Turn
on
A/C
or
shift
car
finto
drive
.
¡die
should
remain
steady
orincrease
slightly
.

3
.
If
valve
is
not
buzzing,or
if
¡die
decreases
in
step
2,

stop
engine
and
disconnect
harness
connector
from
valve
.
Check
resistance
of
valve
across
its
terminals
.

See
Fig
.
30
.
Test
values
are
listed
below
.

NOTE
-

If
you
suspect
an
intermittent
fault,
lightly
tapthe
valve
while
testing
resistance
.

11250

Fig
.
30
.
¡die
speed
control
valve
terminal
identification
.

4
.
With
valve
harnessconnector
disconnected,
check
for
battery
voltage
at
red/white
wire
in
connector
with
igni-

tion
tumed
on
.

"
If
there
is
no
voltage,
check
wiring
between
connec-
tor
and
main
relayterminal
87
.
See
Electrical
Wiring
Diagrams
.

5
.
If
voltage
is
presentas
described
above,
check
wiring
between
ECM
and
valve
.
If
no
wiring
faults
are
found,
check
ECM
signal
to
valve
.

NOTE-



NOTE-
"
The
Ole
speed
control
valve
signal
can
be
checked



The
intake
manifold
is
held
in
place
with
7
nuts
from
using
a
duty
cycle
meter
(or
dwellmeter)
.
Connect
the



above
and
2
support
bracket
bolts
from
undemeath
.
On
meter
to
the
valve
following
the
manufacturer's
in-



DME
3
.1
cars,
carefully
disconnect
the
idleair
hose
from
structions
.
Turn
on
the
WC
or
create
a
larga
air
leak



theintake
manifold
when
lifting
the
manifold
off
.
For
more
and
check
that
the
meter
reading
reacts
while
the
idle



information,
sea
113
Cylinder
HeadRemovaland
In-
speed
remainssteady
.



stallation
.

"
There
are
some
additional
inputs
to
the
control
mod-
ule
that
affect
idle
speed
(Le
.
throttle
position,
AIC-on



5
.
Disconnect
al¡
necessary
hoses
andremove
idle
speed
signals,
andAIT
Drive
position)
.
Check
these
signals



control
valve
.
if
idle
problems
persist
.
See
Tabla
i
orTable
j
.

Idle
speed
control
valva,
replacing

The
idle
speed
control
valve
is
mounted
beneath
the
intake
manifold
.
Accessing
the
valva
is
best
accomplishedby
first
re-
moving
the
intake
manifold
.

NOTE-

¡tis
recommended
that
the
intake
manifold
gaskets
be
replaced
whenever
the
intake
manifold
is
removed
.

1
.
Remove
top
enginecovers
from
engine
.
See
Fig
.
31
.

FUEL
INJECTION



130-21

6
.
Installation
is
reverse
of
Removal
.
Use
new
gaskets
when
installing
intake
manifold
.

NOTE-

Poor
driveability
may
be
noticed
afterinstalling
a
re-
placement
idle
speed
control
valve
.
After
about
10
min-
utes
of
driving,
the
system
will
adapt
the
base
setting
of
the
valva
and
the
idle
speed
should
retum
to
normal
.

Tightening
Torque

"
Intakemanifold
to

cylinder
head
(M7)
........
..
.
15±2
Nm
(11
ti
ft-Ib)

BOSCH
DME
M5
.2

COMPONENT
REPLACEMENT

On-Board
Diagnostics
11
(OBD
II)
is
incorporated
into
the

Bosch
DME
M5
.2
engine
management
systems
used
on
the

M44
engine
.
OBD
II
is
capable
of
detecting
a
full
range
of

faults
.
When
faults
are
detected,
a
Diagnostic
Trouble
Code
(DTC)
is
stored
in
the
system
ECM
.
The
Check
Engine
warn-
ing
light
will
also
come
on
if
an
emissions-relatad
fault
is
de-
tected
.

The
most
efficient
way
to
diagnose
the
Bosch
OBD
II
sys-

tem
is
by
using
a
specialized
scan
tool
.
The
OBD
II
system
is

capable
of
storing
hundreds
of
faults,
making
diagnostics
with

a
scan
tool
the
only
viable
method
.
Therefore,
system
diag-
nostics
is
not
covered
here
.

Fi



31
.
Remove
to
en
ine
covers
b



in
out
caPs
and
removin



NOTE-

nuts
(A)
9
.



P



g



y
Pry
g



g



"
The
OBD
11
fault
memory
(including
an
iiluminated
Note

14


L-te
at
cover
edge
(arrows)
.
Check
Engine
light)
can
only
be
reset
using
the
spe-
cial
scan
tool
.
Removing
the
connector
from
the
ECM
2
.
Remove
two
hold
down
nuts
from
fuel
injector
wiring



or
disconnecting
the
battery
will
not
arase
the
fault
duct
.
Pry
back
injector
connector
retainers
and
lift
off



memory
.

wiring
duct
.



"
The
16-pin
OBD
Il
diagnostic
connector
is
located
on
the
lower
left
dash
panel
.
Refer
to
Fig
.
1
.
3
.
Disconnect
intake
air
bootfrom
throttle
housing
.
Where

applicable
disconnect
accelerator
cable
and
cruise



"
BMW
special
scan
tool
ora
`generic"OBD
II
scan
tool

control
cable
from
their
brackets
.



must
be
used
to
access
DTCs
.

4
.
Unbolt
intake
manifold
and
move
it
out
of
way
enough

to
access
idle
speed
control
valva
.

"
Tablak
lists
engine
control
module
(ECM)
pinouts
for
the
DMEM5
.2
system

BOSCH
DME
M5
.
2
COMPONENT
REPLACEMENT

GENERAL

This
repair
group
covers
replacement
of
the
front
fenders

and
removal
and
installation
of
the
engine
hood
.

NOTE-

The
body
is
painted
at
the
factoryafter
assembly
.
Re-
alignment
of
body
panels
may
expose
unpainted
metal
.

Paint
all
exposed
metal
once
the
work
fs
complete
.

FRONT
FENDERS

Front
fender,
removing
and
installing

1
.
Raise
hood
.
Raise
and
safely
support
front
of
vehicle
.

WARNING
-

"
When
raising
thecar
using
a
floor
jack
or
a
hy-

draulic
lift,
carefully
position
the
jack
pad
to
pre-

vent
damaging
thecar
body
.
A
suitable
liner
(wood,
rubber,
etc
.)
should
be
placed
between
the
jack
and
the
car
to
prevent
body
damage
.

"
Watch
the
jack
closely
.
Make
sure
it
stays
stable
and
does
not
shift
or
tilt
.
As
the
car
is
raised,
the

car
may
roll
slightly
and
the
jack
may
shift
.

2
.
Remove
front
wheel
.
Remove
inner
plastic
liner
from

wheel
well
.

3
.
Remove
front
bumper
.
See510
Exterior
Trim,

Bumpers
.

4
.
Working
atfront
corner
of
fender,
remove
front
grille

panel
bolts
(2
bolts
at
left
and
right)
.
See
Fig
.
1
.

FENDERS,
ENGINE
HOOD



410-1

410
Fenders,
Engine
Hood

GENERAL
...............
.
.
.
.
.
.
.
.
.
.
.
..
410-1



ENGINE
HOOD
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
...
.
.410-3

Hood,
raising
to
service
position
.
.
.
.
.
.
.
.
...
410-3
FRONTFENDERS
........
.
.
.
.
.
.
.
.
.
.
.
.
.410-1



Hood,
removin



and
installin



410-3

Front
Pender,
removing
and
installing
.
.
.
....
410-1



Hood,
aligning
...
.
.
.
.
.
.
.
.....
.
.
.
.
.
.
.
...
410-4

Hood
release
cable
and
latches,
adjusting
...
410-4

001
.145

Fig
.
1
.



Front
grille
panel
to
front
fender
retaining
bolts
(arrows)
.
Front

bumpershown
removed
.

5
.
Remove
front
turn
signalliens
assembly
from
applica-

ble
front
corner
.
Carefully
pryout
side
directional
from

fender
(later
cars
only)
.
See
630
Exterior
Lighting
.

6
.
Remove
fender
attaching
bolts
atfront
underside
of

fender
.
See
Fig
.
2
.

7
.
Remove
bolts
along
top
edge
of
fender
:
See
Fig
.
3
.

8
.
Open
front
door
and
remove
fender
mounting
bolts
in

door
jamb
.
See
Fig
.
4
.

9
.
Carefully
remove
fender
from
body
.

FRONTFENDERS

Dashboard,
removing
and
installing

1
.
Disconnect
negative
(-)
cable
from
battery
and
cover
terminal
with
insulating
material
.

CAUTION-

Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautionsgiven
at
the
front
of
this
manual
onpage
vi¡¡
.

2
.
Remove
center
console
as
described
earlier
.

3
.
Remove
glove
compartment
as
described
earlier
.

4
.
Remove
lower
left
dash
trim
piece
as
described
above
.
Remove
lower
right
dash
trim
panel
.
See
Fig
.
4
.

Fig
.
4
.



Lower
right
dash
trim
piece
retaining
screw
(arrow)
.

WARNING
-

Store
the
removed
airbags
in
a
safe
place
.
Position
the
airbags
facing
up
.

8
.
Remove
instrument
cluster
.
See
620
Instruments
.

5
.
Remove
driver
and
passenger
airbags
.
See
721
Air-

bag
System
(SRS)
.

6
.
Remove
steering
wheel
.
See
320
Steering
and
Wheel
Alignment
.

INTERIOR
TRIM



513-
3

Fig
.
5
.



Driver
side
knee
bolster
mounting
bolts
(arrows)
.

9
.
Remove
headlight
switch
.
Remove
turn
signal
and
windshield
wiper/washer
stalk
switches
.
See612
Switches
and
Electrical
Accessories
.

10
.
Remove
A/C
control
head
and
module
.
See
640
Heat-ing
and
Air
Conditioning
.

11
.
Remove
radio
.
See650
Radio
.

12
.
Remove
A-pillar
(windshield
pillar)
trim
on
left
and
right
sides
.
See
Fig
.
6
.

UU13156
Fig
.
6
.



A-pillar
(windshield
pillar)
trim
removal
.
Right
side
shown,
left
7
.
Remove
driver
side
knee
bolster
.
See
Fig
.
5
.



is
similar
.

DASHBOARD

002262



In
this
system,
three
microswitches
are
operated
via
the
door
lock
cylinder
at
each
front
door
.
Turning
the
key
approximately
Fig
.
17
.
Pufl
off
luggage
compartment
lock
actuating
rod
in
the
direc-



45°
(position
1)
operates
the
door
locking
microswitch
.
Tuming
tionof
arrow
.



the
key
approximately
90°
(position2)
actuates
the
double
locking
microswitch
.
Tuming
the
key
approximately
45°
in
the
opposite
di-
rection
through
position
0
actuates
the
unlocking
microswitch
and
deactivates
the
alarm
system
(position3)
.
See
Fig
.
19
.

Fig
.
18
.
Luggage
compartment
actuatorwire
connectors
and
attach-
ing
screws
(arrows)
.

LOCKING
SYSTEM
AND

ELECTRONIC
IMMOBILIZATION

The
central
locking
system
uses
electrical
lock
actuators
at

each
door
and
at
the
trunk
lid
.
The
locking
system
can
be
ac-

tuated
by
either
front
door
lock
or
by
the
luggage
compartment

lock
.
Onsome
1994
and
later
cars,
an
additional
remote
con-

trol
keypadcan
also
be
used
to
activate
the
lock
and
anti-theft

systems
.

When
the
key
is
tuned
to
the
lock
position,
a
micro-switch

signals
a
central
control
module
to
lock
all
doors,
luggage

compartment,
gas
tank
flap
and,
in
later
convertibles,
the

glove
box
lid
.
Where
applicable,
this
also
arms
the
anti-theft

system
.

CENTRAL
LOCKING
AND
ANTI-THEFT



515-7

NOTE-

The
central
locking
system
responds
to
accidents
vía
animpact
(inertia)
switch
.
When
this
function
ís
activat-
ed,
the
doors
are
automatically
unlocked
and
the
haz-
ard
warning
lights
and
interiorlights
are
turned
on
.
The
impact
switches
are
mounted
in
the
left
and
right
foot-
wells
behind
the
speaker
grilles
.

Central
Locking
System
(ZVM)

Different
versions
of
the
central
locking
control
havebeen
used
in
the
E36
cars
.
In
early
production
cars
(model
years
1992
and
1993),
the
locking
system
is
controlled
through
the
central
locking
module
.
This
system
is
referred
to
as
ZVM
.

Fig
.
19
.
ZVM
door
lock
cylinderpositíons
.

CAUTION-

Do
not
engage
double
locking
position
with
pas-
sengers
in
the
car
unless
the
master
key
isavail-
able
.
The
door
cannotbe
opened
from
outside
orinside
without
the
master
key
.

NOTE-

In
case
of
a
discharged
battery,
the
car
can
still
be
locked
orunlocked
using
the
key
.

0011762

LOCKING
SYSTEM
AND
ELECTRONIC
IMMOBILIZATION

610-12



ELECTRICAL
COMPONENT
LOCATIONS

Table
a
.
E36
Component
Locations

Component



Model
Year



Location



Refer
to

Combination
(Stalk)
Switch



1993-1998



Left
sidesteering
column
(turn
signals/high-low
bean
switch)

Convertible
Top
ActuatingSwitch



1994-1998



Center
console

Convertible
Top
Control
Module



1994-1998



In
lower
left
C-pillar
behind
trim
panel

Convertible
TopEnd
Position
Switch



1994-1998



In
convertible
top
linkage

Convertible
Top
Motor



1994-1998



In
left
sideof
trunk
behind
trim
panel

Convertible
Top
Position



1994-1998



In
convertible
top
linkage
Microswitch
Convertible
Top
Storage
Lid
Lock



1994-1998



In
convertible
top
compartment
left
side
Motor

Convertible
Top
Storage
Lid



1994-1998



Inright
side
convertible
top
storage
lid
latch
Microswitch

Convertible
Top
Storage
Lid
Motor



1994-1998



In
left
side
of
trunk
behind
trim
panel

Coolant
Leve¡
Sensor
(if
applicable)



1992-1998



Bolted
on
radiator,
left
side

Coolant
Temperature
Sensor



1992-1998



Left
front
of
engine/cylinder
head



Fig
.
19
.
Fig
.
20
.

Cooling
Fan
Dual
Switch



1992-1998



Right
side
radiator



Fig
.
18
.

Cooling
Fan
Motor



1992-1998



Behind
front
grill

Crankshaft
Position/RPM
Sensor



1992-1995



At
front
crankshaft
pulley

Crankshaft
Position/RPM
Sensor



1996-1998



Left
rearof
crankcase

Crash
Sensor,
Airbag



1992-1993



On
right/left
frontstrut
tower

Crash
Control
Module



1992



Auxiliary
relay
panel

Crash
Control
Module



1993-1998



Driver's
side
footwell

Crash
Sensor,
Right/Left
Side



1997-1998



Right/left
door
sill
behind
front
seat
Impact
Airbag

Cruise
Control
Actuator



1992-1998



Left
front
of
engine
compartment



Fig
.
7
.

Cruise
Control
Module



1992-1998



Behind
glove
compartment



Fig
.
8
.
Fig
.
9
.

Data
Link
Connector



1992-1998



Right
sideof
engine



Fig
.
7
.

Digital
Motor
Electronics
(DME)



1992-1998



Right
rear
engine
compartment,
behind
bulkhead
panel



Fig
.
7
.
Control
Module

DoorLock
Heater



1993-1994



Left
front
doorhandle
DoorHandle
Switch



1994-1998



left
front
door

Drive-away
Protection
(EWS
II)



1/1995
-
1998



Behind
glove
compartment



Fig
.
8
.
Module



Fig
.
9
.

Dual
Coolant
Temperature
Sensor



1997-1998



Below
intake
manifold



Fig
.
19
.

COMPONENT
LOCATIONS

Fig
.
20
.

Electronic
Immobilizer
Control



(
1/1995-1998
~
Behind
glove
compartment



Fig
.
8
.
Module
(EWS
II)



Fig
.
9
.

Continued

610-20



ELECTRICAL
COMPONENT
LOCATIONS

Fuses
31-46

o_

~oomoo
ommmo~

8
I



15A
I
Horn
Fuses21-30

Fuses
1-20

Fuse
positions
1-46
in
front
power
distribution
box

Table
b
.
1992
E36
Fuse
Positions

Fuse



1
Rating



1
Protected
Circuit

1



1



30A
1
Power
sunroof
(see
also
fuse
13)

2
I



I
Not
used

3
1



30A
1
Headlight
washer

(a
El
1
:1
El

4
1



15A
1
Heated
seats
(see
also
fuse
23)

5
1



30A
1
Power
seats
(see
also
fuse
40)

6
1



20A
1
Rear
window
defogger
(see
also
fuse
23)

7



5A
~
Anti-theft
system
(Alpine)
(see
also
fuse
43)
Central
locking
(ZVM
II)
(see
also
f
use
35,43)

9
(



20A
1
Sound
system
(see
also
fuse
44)

10
1



30A
1
ABS
(see
also
f
use
21,
27,
38,
46)

11



7
.5A



Crash
control
module
(seealso
fuse
12,25,
29,34)
Headlights/foglights
(see
also
fuse
12,15,22,23,
25,29,
30)
On-BoardComputer
(seealsofuse
12,
23,27,31,
33,37,
45,
46)

12



7
.5A



Crash
control
module
(see
also
f
use
11,
25,
29,34)
Headlights/foglights
(seealsofuse
11,15,
22,
23,25,
29,
30)
On-BoardComputer
(see
also
fuse
11,
23,27,
31,33,
37,45,
46)

13



5A



Power
sunroof
(see
also
fuse
1)
Power
windows
(see
also
f
use
14)

14
j



30A
1
Power
windows
(see
also
fuse
13)

15



5A



Headlights/foglights
(see
also
fuse
11,
12,22,
23,
25,29,
30)

16



5A
~
Engine
control
module
(seealsofuse
28)
Heating
andA/C
(IHKR
E36)(see
alsofuse
20,
23,
31,37,
39,
41)

17
I



I
Notused

FUSE
POSITION
TABLES

0013034

Table
b
.
1992
E36
Fuse
Positions

Fuse



Rating



Protected
Circult

18
1



15A
1
Fuel
pump

19
j



15A
1
Park
ventilation
(see
also
fuse
20)

20



30A
~
Heating
andA/C
(IHKR
E36)(see
alsofuse

16,23,31,37,39,
41)
Park
ventilation
(see
also
f
use
19)

21



1



5A
{
ABS
(see
also
fuse
10,27,
38,46)

22



5A



Headlights/foglights
(see
also
f
use
11,12,15,
23,
25,29,
30)
Instrument
illumination
(see
also
fuse
25,33,
37)
Park/taillights
(seealsofuse
33,
37)

23



5A



Multi-function
clock
(see
also
fuse
27,
31,
45,
46)
Headlights/foglights
(see
also
fuse
11,12,15,22,25,
29,30)
Heated
seats
(seealsofuse
4)
Heating
andA/C
(IHKR
E36)(see
alsofuse
16,20,31,37,39,
41)
Instrument
cluster
(see
also
fuse
27,31,
46)
On-Board
Computer
(seealso
fuse
11,
12,
27,31,
33,
37,45,
46)
Rear
window
defogger
(see
alsofuse
6)
Turn
signals/hazard
lights
(seealsofuse
34)

24
I



10A
I



Power
mirrors

25



5A



Crash
control
module
(see
also
f
use
11,12,
29,34)
Headlights/foglights
(see
also
fuse
11,12,15,22,23,29,
30)
Instrument
illumination
(see
also
fuse
22,
33,
37)

26



15A
~
Back-up
lights
Electronic
transmission
control
(A4S
310R)
(seealsofuse
28,46)

27



5A



ABS
(see
also
fuse
10,21,38,
46)
Multi-function
clock
(see
also
fuse
23,
31,
45,46)
Instrument
cluster
(see
also
fuse
23,
31,46)
On-BoardComputer
(see
also
fuse
11,12,23,
31,
33,37,45,
46)

28



5A



Cruise
control
(see
alsofuse
46)
Engine
control
module
(see
alsofuse
16)
Starting
system
Electronic
transmission
control
(A4S
310R)
(see
also
f
use
26,
46)

29



7
.5A



Crash
control
module
(see
also
fuse
11,12,
25,34)
Headlights/foglights
(see
also
fuse
11,12,15,22,23,
25,
30)

30



7
.5A



Headlights/foglights
(see
also
fuse
11,
12,
15,22,23,
25)

31



5A



Multi-function
clock
(see
alsofuse
23,27,
45,46)
Heating
andA/C
(IHKR
E36)(see
also
fuse
16,20,
23,
37,39,
41)
Instrument
cluster
(seealso
fuse
23,
27,46)
On-Board
Computer
(see
also
f
use
11,12,23,27,
33,
37,45,
46)