brake light circuit BMW 325i 1994 E36 Workshop Manual

NOTE
-

Sometimes
the
color
of
en
installed
wire
may
be
differ-
ent
than
the
one
on
the
wiring
diagram
.
Don't
be
con-
cerned
.
Just
be
sure
lo
confirm
that
the
wire
connects
lo
the
proper
terminals
.

Wire
color
codes

"
BLU
.........
.
..
..
...
.
.................
Blue

"
BRN
....:....
.
..
..
...
..
...............
Brown

"
YEL
.........
.
..
..
...................
.Yellow

"
GRN
.........
.
..
..
...
.
................
creen

"
G
RY
.......
.
.
.
..
..
.....................
G
ray

"
ORG
.........
.
..
..
...
.
..............
.Orange

"
RED
......
...
.
.
..
.....................
.Red

"
BLK
.........
.
..
..
...
.
................
Black

"
VIO
..........
.
..
...
..
..
.......
.
.......
Violet

"
WHT
.........
.
.
....
.
...
:..............
White

Table
a
.
Terminal
and
Circuit
Numbers

Number



1
Circuít
description

1



j
Low
voltage
switched
terminal
of
coi¡

4



1
High
voltage
center
termina¡
of
coi¡

+x



Originates
atignition
switch
.
Supplies
powerwhen
the
ignition
switch
is
in
the
PARK,
RUN,
or
START
position

15



Originates
atignition
switch
.
Supplies
powerwhen
ignition
switch
is
in
RUN
or
START
position

30



Battery
positive
(+)
voltage
.
Supplies
power
whenever
battery
is
connected
.
(Not
dependent
on
ignition
switch
position,
unfused)

31



1
Ground,
battery
negative
(-)
terminal

50



Supplies
power
from
battery
to
starter
solenoid
when
ignition
switch
isin
START
position
only

+54



Originates
atignition
switch
.
Supplies
power
when
ignition
switch
isin
the
RUN
position
only

85



1
Ground
side
(-)
ofrelay
coil

86



1
Power-in
side
(+)
ofrelay
coil

87



1
Relay
actuatedcontact

D



Alternator
warning
light
and
field
energizing
circuit

ELECTRICAL
SYSTEM-GENERAL
600-
3

Additional
abbreviations
shown
in
the
wiring
diagrams
are

given
below
.

Abbreviations

"
ABS
........
.
...
.
...
.
..........
antilock
brakes

"
A/C
........
.
...
..
..
.
.........
.airconditioning

"
AST/ASC+T
.......
...
.
.
.......
al¡
season
traction

"
CONV
.......
.
.
...
.................
convertible

"
DME
........
.
.
...
.......
digital
motor
electronics

"
ECM



.......
.
...
..
..
.
..
electronic
control
module

"
EWS/EWS
II
......
...
.
.
coded
driveaway
protection

"
SRS
........
.
supplemental
restraint
system-airbag

"
TCM
........
.
..
....
.
transmission
control
module

"
ZKE
(94-98
models)
..
..
.
...
central
body
electronics

"
ZVM
(92-93
models)
...
.
.
..
.
.......
central
locking

ELECTRICAL
TROUBLESHOOTING

Most
terminals
are
identified
by
numbers
on
the
compo-

nents
and
harness
connectors
.
The
terminal
numbers
for
ma-



Four
things
are
required
for
current
toflow
in
any
electrical

jor
electrical
connections
are
shown
in
the
diagrams
.
Though



circuit
:
a
voltagesource,
wires
or
connections
to
transport
the

many
terminal
numbers
appear
only
once,
severa¡other
num-



voltage,
a
load
or
device
that
uses
the
electricity,
and
a
con-
bers
appear
in
numerous
places
throughout
the
electrical
sys-



nection
to
ground
.
Most
problemscanbefound
using
a
digital

tem
and
identify
certain
types
ofcircuits
.
Some
of
the
most



multimeter
(volt/ohm/amp
meter)to
check
for
voltage
supply,

common
circuit
numbers
are
listed
below
in
Table
a
.



for
breaks
in
the
wiring
(infinite
resistance/no
continuity),
orfor

a
path
to
ground
that
completesthe
circuit
.

Electric
current
is
logical
in
its
flow,
always
moving
from
the

voltage
sourcetoward
ground
.
Electricalfaults
can
usually
be

located
through
a
process
of
elimination
.
When
troubleshoot-

ing
a
complex
circuit,
separate
the
circuit
into
smaller
parts
.

The
general
testsoutlined
below
may
be
helpful
in
finding

electrical
problems
.
The
information
is
most
helpful
when

used
with
the
wiring
diagrams
.

Be
sure
to
analyze
the
problem
.
Use
the
wiring
diagrams
to

determine
the
most
likely
cause
.
Getan
understanding
of
how

the
circuit
works
by
following
the
circuit
from
groundback
to

the
power
source
.

When
making
test
connections
at
connectors
andcompo-

nents,
use
care
to
avoidspreading
or
damaging
the
connec-

tors
or
terminals
.
Some
tests
may
require
jumper
wires
to

bypass
components
or
connections
in
the
wiring
harness
.

When
connecting
jumper
wires,
use
bladeconnectors
at
the

wire
ends
that
match
the
size
of
the
terminal
being
tested
.
The

small
interna¡
contacts
are
easily
spread
apart,
and
this
can

cause
intermittent
or
faultyconnections
that
can
leadto
more

problems
.

ELECTRICAL
TROUBLESHOOTING

Continuity,
checking
Short
Circuits

from
Battery

CAUTION-

Use
only
a
high
quality
digital
ohmmeter
having
high
input
impedance
when
checking
electronic
componente
.
The
internal
power
source
used
in
most
analog
(swing-need1e)
meterscan
damage
solidstate
components
.

0013239

Fig
.
2
.



Digital
multimeter
being
used
to
check
for
voltage
drop
across
a
switch
.

The
continuity
test
can
beused
to
check
a
circuit
or
switch
.
Because
most
automotive
circuits
are
designed
to
have
little

or
no
resistance,
a
circuit
or
part
of
a
circuit
canbe
easily

checked
for
faults
using
an
ohmmeter
.
An
open
circuit
or
a
cir-

cuit
withhigh
resistance
will
not
allow
current
to
flow
.
A
círcuit
with
little
or
no
resistanceallows
current
to
flow
easily
.

When
checking
continuity,
the
ignition
should
be
off
.
On
cir-
cuits
that
are
powered
at
all
times,
the
battery
should
be
dis-
connected
.
Using
the
appropriate
wiring
diagram,
a
circuit
can
be
easily
tested
for
faulty
connections,
wires,
switches,
relays,
and
engine
sensorsby
checking
forcontinuity
.
For
a
continu-
ity
check
on
a
brake
light
switch,
see
Fig
.
3
..

A
short
circuit
is
exactly
what
the
narre
implies
.
The
circuit
takes
a
shorter
paththan
it
was
designed
to
take
.
The
most

common
short
that
causes
problems
is
a
short
to
ground

where
the
insulation
on
a
positive
(+)
wire
wears
away
and
the

metal
wire
is
exposed
.
When
the
wire
rubs
against
a
metal

partof
thecar
or
other
ground
source,
the
circuit
is
shorted
to
ground
.
If
the
exposed
wire
is
live
(positive
battery
voltage),
a

Puse
will
blow
and
the
circuit
may
possibly
be
damaged
.

ELECTRICAL
SYSTEM
-
GENERAL
600-
5

Brake
light
switch

Brake
pedal
in
rest
position

Q

Brake
pedal
depressed
Brake
light
switch

Fig
.
3
.



Brake
light
switchbeing
tested
for
continuity
.
With
brake
ped-
alin
rest
position
(switch
open)
there
is
no
continuity
(infinite
ohms)
.
With
pedal
depressed
(switch
closed)
there
is
continu-
ity
(zero
ohms)
.

Shorts
to
groundcanbe
located
with
a
digital
multimeter
.
Short
circuits
are
often
difficult
to
locate
and
may
vary
in
na-
ture
.
Short
circuits
can
befound
using
a
logical
approach
based
onthe
current
path
.

CAUTION
-

"
On
circuits
protected
with
high
rating
fuses
(25
amp
and
greater),
the
wires
or
circuit
compo-
nents
may
be
damaged
before
the
fuse
blows
.
Always
check
for
damage
before
replacing
fuses
of
this
rating
.

"
When
replacing
blown
fuses,
use
only
fuses
hav-
ingthe
correct
rating
.
Always
confirm
the
correct
fuse
rating
printed
on
the
fuselrelay
panelcover

DC

ELECTRICAL
TROUBLESHOOTING

Table
b
.
1992
E36
Fuse
Positions



Table
b
.
1992
E36
Fuse
Positions

Fuse



Rating



Protected
Circuit

32



30A



Glove
compartment
light/cassette
compartmenVashtray
light/charging
socket/cigar
lighter
(see
also
fuse
33,37,
44)

33



10A



Cellular
telephone
(seealsofuse
43)
Glove
compartment
light/cassette
compartment/ashtray
IighUcharging
sockeUcigar
lighter
(seealsofuse
32,
37,
44)
Interiorlights
(also
see
fuse
43)
License
plate/luggage
compartment
lights
(see
also
f
use
37)
Instrument
íllumination
(see
also
fuse
22,25,
37)
On-Board
Computer
(see
also
fuse
11,12,23,27,31,37,45,
46)
Park/taillights
(seealso
fuse
22,
37)

34



15A
~
Crash
control
module
(see
also
fuse
11,
12,
25,29)
Turn
signals/hazard
lights
(seealsofuse
23)

35
1



25A
j
Central
locking
(ZVM
II)
(see
alsofuse
7,
43)

36
1



30A
1
Wiper/washer
(seealsofuse
37,44,
45)

37



10A



Glove
compartment
IighUcassette
compartmenVashtray
light/charging
socket/cigar
lighter
(see
also
fuse
32,33,
44)
Heating
andA/C
(IHKR
E36)(see
alsofuse
16,
20,23,31,
39,41)
Instrument
illumination
(see
also
fuse
22,25,
33)
License
plate/luggage
compartment
lights
(see
also
fuse
33)
On-Board
Computer
(see
also
fuse
11,12,23,27,31,33,45,
46)
Park/taillights
(see
alsofuse
22,
33)
Wiper/washer
(see
also
fuse
36,
44,
45)

38
1



30A
1
ABS
(see
also
fuse
10,21,27,
46)

39



7
.5A



Heating
andA/C
(IHKR
E36)(see
also
fuse
16,20,
23,
31,37,
41)

40
1



30A
1
Power
seats
(see
also
fuse
5)
41



30A
~
Heating
andA/C
(IHKR
E36)(see
alsofuse
16,20,23,
31,
37,
39)
Radiator
auxiliary
fan

42
I



7
.5A
I
Not
used

43



5A



Anti-theft
system
(Alpine)
(see
also
fuse
7)
Cellular
telephone
(seealsofuse
33)
Centrallocking
(ZVM
II)
(see
also
f
use
7,
35)
Interiorlights
(also
see
fuse
33)

44



15A



Glove
compartment
light/cassette
compartmenVashtray
light/charging
sockeUcigar
lighter
(see
also
fuse
32,
33,
37)
Sound
system
(see
also
fuse
9)
Wiper/washer
(see
also
fuse
36,37,
45)

45



7
.5A



Multi-function
clock
(see
also
fuse
23,
27,
31,
46)
On-Board
Computer
(see
also
fuse
11,12,
23,
27,31,33,
37,46)
Wiper/washer
(see
also
fuse
36,37,
44)

ELECTRICAL
COMPONENT
LOCATIONS



610-21

Fuse



Rating



Protected
Circuít

46



15A



ABS
(see
also
fuse
10,21,27,
38)
Brake
lights
Multi-function
clock
(seealso
fuse
23,27,31,
45)
Cruise
control
(see
also
fuse
28)
Electronic
transmission
control
(A4S
310R)
(see
also
f
use
26,
28)
Instrument
cluster
(seealsofuse
23,
27,31)
On-Board
Computer
(see
also
f
use
11,12,
23,
27,31,33,
37,45)

WARNING
-

Fuse
designations
and
locations
are
subject
to
change,
and
may
vary
from
car
tocar,
depending
on
options
.
If
questions
arise,
please
remember
that
an
authorized
BMW
dealer
is
the
best
source
for
the
most
accurate
and
up-to-date
information
.

FOSE
POSITION
TABLES

Table
c
.
1993
E36
Fuse
Positions



Table
c
.
1993
E36
Fuse
Positions

fuse



1
Rating



1
Protected
Circuit

33



10A



Cellular
telephone
(see
also
fuse
43)
Glove
compartment
IighUcassette
compartment/ashtray
light/charging
socket/cigar
lighter
(seealsofuse
32,37,
44)
Interior
lights
(also
see
fuse
43)
License
plate/luggage
compartment
lights
(seealsofuse
37)
Instrument
illumination
(see
also
fuse
22,
25,37)
On-BoardComputer
(seealso
f
use
11,
12,23,27,31,
37,
45,
46)
Park/taillights
(seealso
fuse
22,
37)
Powerwindows
(see
also
f
use
14)

34



15A



Crash
control
module
Turn
signals/hazard
lights
(seealsofuse
23)

35



1



25A
1



Central
locking
(ZVM
II)
(seealso
fuse
7,
43)

36
1



30A
1
Wiper/washer
(see
alsofuse
37,
44,
45)

37



10A



Glove
compartment
light/cassette
compartmenUashtray
IighUcharging
socket/cigar
lighter
(see
also
fuse
32,33,44)
Heating
and
A/C
(IHKR
E36)(see
alsofuse
16,20,23,
31,
39,
41)
Instrument
illumination
(seealso
fuse
22,25,33)
License
plate/luggage
compartment
lights
(seealsofuse
33)
On-BoardComputer
(seealsofuse
11,12,
23,
27,31,
33,
45,
46)
Park/taillights
(see
also
fuse
22,
33)
Wiper/washer
(seealsofuse
36,
44,
45)

38
1



30A
1
ABS
(seealso
f
use
10,21,27,
46)

39



7
.5A



Heating
and
A/C
(IHKR
E36)(see
alsofuse
16,20,23,
31,
37,
41)

40
1



30A
1
Power
seats
(see
also
fuse
5)
41



30A
~
Heating
and
A/C
(IHKR
E36)(see
alsofuse
16,20,23,
31,
37,
39)
Radiator
auxiliary
fan

42
1



7.5A
1
Airbag
(SRS)
(seealsofuse
43)

43



5A



Anti-theft
system
(Alpíne)
(seealsofuse
8)
Airbag
(SRS)
(seealsofuse
42)
Cellular
telephone
(see
also
fuse
33)
Central
locking
(ZVM
II)
(seealso
f
use
7,
35)
Interiorlights
(also
see
fuse
33)

44



15A



Glove
compartment
IighUcassette
compartment/ashtray
IighUcharging
sockeUcigar
lighter
(seealsofuse
32,33,
37)
Sound
system
(see
alsofuse9)
Wiper/washer
(see
also
fuse
36,
37,
45)

45



7
.5A



Multi-function
clock
(seealso
fuse
23,
27,
31,
46)
On-BoardComputer
(see
also
f
use
11,12,23,27,31,33,37,
46)
Wiper/washer
(see
also
fuse
36,37,
44)

ELECTRICAL
COMPONENT
LOCATIONS



610-23

fuse



Rating



Protected
Circuit

46



15A



ABS
(see
alsofuse
10,
21,27,38)
Brake
lights
Multi-function
clock
(seealso
fuse
23,
27,
31,
45)
Cruise
control
(see
also
fuse
28)
Electronic
transmission
control
(A4S
310R)
(see
also
fuse
26,
28)
Instrument
cluster
(see
alsofuse
23,27,
31)
On-BoardComputer
(see
also
f
use
11,
12,
23,
27,31,33,37,
45)

WARNING
-

Fuse
designations
and
locations
are
subject
to
change,
and
may
vary
from
car
tocar,
depending
on
options
.
Ifquestionsarise,
pleaserememberthatan
authorized
BMW
dealer
is
the
best
source
for
the
most
accurate
and
up-to-date
information
.

FOSE
POSITION
TABLES

ELECTRICAL
COMPONENT
LOCATIONS
610-25

Table
d
.
1994
E36
Fuse
Positions



Table
d
.
1994
E36
Fuse
Positions

fuse



1
Rating
1
Protected
Circuit

33



10A



Central
body
electronics
(ZKE
IV)
(seealso
Puse
7,
43)
Charging
socket
Interiorlights
(also
see
fuse
43)
License
platelluggage
compartment
lights
(seealsofuse
37)
On-BoardComputer
(seealso
fuse
11,12,
23,27,
31,37,
45,
46)
Park/taillights
(seealso
fuse
22,
37)
Telephone
(see
also
fuse
43)

34



15A



Crash
control
module
Turn
signals/hazard
lights
(seealsofuse
23)

35



25A
~
Central
locking
(seealso
fuse
7,
43)
Convertible
roof
(see
also
fuse
7,
43)
Roll-over
protection
(see
alsofuse
7,
42,
43)

36
j



30A
1
Wiper/washer
(see
alsofuse
37,
44,
45)

37



10A



Cassette
compartment
light
Engine
compartment
light
Heating
andA/C
(IHKR
E36)(see
alsofuse
16,20,23,
31,
39,
41)
Instrument
illumínation
(see
also
fuse
22,
25)
License
plate/luggage
compartment
lights
(seealso
f
use
33)
On-BoardComputer
(seealso
fuse
11,
12,23,27,
31,33,
45,
46)
Park/taillights
(seealso
fuse
22,
33)
Wiper/washer
(see
alsofuse
36,
44,45)

38



30A



ABS
(see
also
fuse
10,21,
46)
AST
(see
also
fuse
10,
21)

39



7
.5A



Heating
andA/C
(IHKR
E36)(see
also
fuse
16,20,23,
31,
37,
41)

40
1



30A
1
Power
seats
(seealsofuse
5)

41



30A
~
Heating
andA/C
(IHKRE36)(see
also
fuse
16,20,
23,31,
37,
39)
Radiator
auxiliary
fan

42



7.5A



Airbag
(SRS)
(seealsofuse
43)
Roll-over
protection
(see
also
f
use
7,
35,
43)

43



5A



Anti-theft
system
(Alpine)
Airbag
(SRS)
(see
also
fuse
42)
Central
body
electronics
(ZKE
IV)
(see
also
fuse
7,
33)
Central
locking
(seealsofuse
7,
35)
Convertible
roof
(see
alsofuse
7,
35)
Interior
lights
(also
see
fuse
33)
Rol¡-over
protection
(seealsofuse
7,
35,
42)
Telephone
(seealsofuse
33)

44



15A
~
Glove
compartment
light
Sound
system
(see
also
f
use
9)
Wiper/washer
(see
also
fuse
36,
37,
45)

45



7
.5A
~
On-Board
Computer
(see
also
fuse
11,12,23,
27,
31,33,37,
46)
Wiper/washer
(see
also
fuse
36,37,
44)

fuse



1
Rating



1
Protected
Circuit

46



15A



ABS
(see
also
fuse
10,21,
38)
Brake
lights
Multi-function
clock
(see
also
fuse
23,
27,
31,45)Cruise
control
(seealsofuse
28)
Electronic
transmission
control
(A4S
310R)
(seealsofuse
26,
28)
Instrument
cluster
(see
also
fuse
23,
27,31)
On-Board
Computer
(see
also
fuse
11,12,23,27,31,33,37,
45)

WARNING
-

Fuse
designations
and
locations
are
subject
to
change
and
may
varyfrom
car
tocar,
depending
on
options
.
If
questions
arise,
please
remember
that
an
authorized
BMW
dealer
is
the
best
source
for
the
most
accurate
and
up-to-date
information
.

FOSE
POSITION
TABLES

Tablee
.
1995
E36
Fuse
Positions



Table
e
.
1995
E36
Fuse
Positions

fuse



I
Rating



1
Protected
Circuit

28



5A



Central
locking
(see
alsofuse
7,
26,
35)Cruise
control
(see
also
fuse
46)Engine
control
module
(see
also
f
use
16,
39)
Electronic
transmission
control
(A4S
310R/Z)
(see
also
f
use
26,
46)
Starting
system
(seealsofuse
26)

29



7.5A



Headlights/foglights
(seealsofuse
11,
12,
15,17,23,
25,30)

30



7
.5A



Headlights/foglights
(seealsofuse
11,
12,
15,17,23,
25,29)

31



5A



Central
body
electronics
(ZKE
IV)
(see
also
fuse
7,
14,33,35,43)
Heating
and
A/C
(IHKR
E36)(see
also
fuse
16,20,23,
37,
39,
41)
Instrument
cluster
(see
also
fuse
23,27,
46)
Multi-function
clock
(see
also
fuse
23,26,27,
45,46)
On-Board
Computer
(seealso
f
use
11,
12,23,26,27,
33,
37,45,
46)
On-Board
Display
(seealso
f
use
23,27,45,
46)

32
1



30A
1
Cigar
lighter/ashtray
lights

33



10A



Central
body
electronics
(ZKE
IV)
(see
also
fuse
7,
14,31,35,
43)
Charging
socket
Door
lock
heating
Instrument
illumination
(see
also
fuse
22,25,
37)
Interiorlights
(also
see
fuse
7,
43)
License
plate/luggage
compartment
lights
(see
alsofuse
37)
On-Board
Computer
(seealsofuse
11,
12,23,26,27,
31,
37,45,
46)
Park/taillights
(see
also
f
use
22,
37)
Sound
system
(see
also
fuse
9,
44)
Telephone
(see
alsofuse
43)

34



15A



Crash
control
module
Turn
signals/hazard
lights
(see
also
fuse
23)

35



25A



Central
body
electronics
(ZKE
IV)
(see
also
f
use
7,
14,31,
33,43)
Central
locking
(seealso
f
use
7,
26,
28)
Convertible
roof
(see
alsofuse
7,
27,42,
43)
Rol¡-over
protection
(see
alsofuse
7,
42,
43)

36
1



30A
1
Wiper/washer
(see
alsofuse
37,
44,
45)

37



10A



Cassette
compartment
light
Engine
compartment
light
Heating
and
A/C
(IHKR
E36)(see
alsofuse
16,20,23,
31,
39,
41)
Instrument
illumination
(seealsofuse
22,25,
33)
License
plate/luggage
compartment
lights
(see
also
fuse
33)
On-Board
Computer
(see
alsofuse
11,
12,23,26,
27,
31,33,45,
46)
Park/taillights
(see
alsofuse
22,
33)
Wiper/washer
(Canada
only)
(see
also
f
use
36,
44,45)

38



30A



ABS
(see
also
fuse
10,21,23,
27,
46,
47)
AST
(see
alsofuse
10,
21,
26,27,
46)

ELECTRICAL
COMPONENT
LOCATIONS



610-27

fuse



Rating



Protected
Circuit

39



7.5A
~
Engine
control
module
(see
alsofuse
16,28)
Heating
and
A/C(IHKR
E36)(see
also
fuse
16,20,23,
31,
37,
41)

40
1



30A
1



Power
seats
(see
alsofuse5)
41



30A
~
Heating
and
A/C(IHKRE36)(see
also
fuse
16,20,
23,31,
37,
39)
Radiator
auxiliary
fan

42



7
.5A
~
Airbag
(SRS)
(see
also
fuse
43)
Convertible
roof
(see
alsofuse
7,
27,
35,
43)
Rol¡-over
protection
(see
also
fuse
7,
35,
43)

43



5A



Anti-theft
system
(Alpine)
(seealsofuse
47)
Airbag
(SRS)
(see
also
fuse
42)
Central
body
electronics
(ZKE
IV)
(seealsofuse
7,
14,31,33,35)
Central
locking
(seealsofuse
7,
35)
Convertible
roof
(see
alsofuse
7,
27,
35,
42)
Interior
lights
(also
see
fuse
7,
33)
Roll-over
protection
(see
alsofuse
7,
35,42)
Telephone
(seealsofuse
33)

44



15A
~
Glove
compartment
light
Sound
system
(see
also
f
use
9,
33)
Wiper/washer
(see
alsofuse
36,37,
45)

45



7
.5A



Multi-function
clock
(see
also
fuse
23,
26,27,
31,46)
On-Board
Computer
(see
also
f
use
11,12,23,26,
27,31,
33,37,
46)
On-Board
Display
(seealso
fuse
23,27,31,
46)
Wiper/washer
(Canada
only)
(seealsofuse
36,37,
44)

46



15A



ABS
(seealsofuse
10,21,23,27,
38,47)
AST
(seealso
fuse
10,
21,
26,
27,
38)
Brake
lights
Cruise
control
(see
also
fuse
28)
Electronic
transmission
control
(A4S
310R)
(seealsofuse
26,
28)
Instrument
cluster
(see
also
fuse
23,
27,
31)
Multi-function
clock
(see
also
fuse
23,
26,27,
31,45)
On-BoardComputer
(seealsofuse
11,
12,
23,26,
27,31,
33,37,
45)
On-Board
Display
(see
also
fuse
23,27,31,
45)

47



15A



ABS
(see
also
fuse
10,21,23,27,38,
46)
Anti-theft
system
(Alpine)
(see
alsofuse
43)

48



40A



Notused

WARNING
-

"
Fuse
designations
and
locations
are
subject
to
change,
and
may
varyfrom
car
tocar,
depending
on
options
.
lf
questions
arise,
please
remember
that
an
authorized
BMW
dealer
is
the
best
source
for
the
most
accurate
and
up-to-date
information
.

"
To
locate
fuses
47-48,
refer
to
Fuse
and
Relay
Positions
inthis
repair
group
.

FOSE
POSITION
TABLES

Table
f
.
1996
E36
Fuse
Positions



Table
f
.
1996
E36
Fuse
Positions

fuse



Rating



Protected
Circuit

28



5A



Central
locking
(see
also
fuse
7,
26,
35)Cruise
control
(see
also
fuse
46)Engine
control
module
(seealsofuse
16,
39)
Electronic
transmission
control
(A4S
310R/Z)
(seealso
f
use
26,46)
Driveaway
protection
(EWS
II)
(see
alsofuse
31,46)
Starting
system
(seealso
f
use
26)

29



7.5A



Headlights/foglights
(seealsofuse
11,
12,15,17,
23,
25,
30)

30



7
.5A



Headlights/foglights
(see
alsofuse
11,
12,15,17,
23,
25,
29)

31



5A



Driveaway
protection
(EWS
II)
(see
also
fuse
28,46)
Heating
and
A/C
(IHKR
E36)(see
also
fuse
16,
20,23,
37,39,
41,48)
Instrument
cluster
(seealso
f
use
23,27,
46)
Multi-function
clock
(seealsofuse
23,26,27,
45,46)
On-Board
Computer
(seealso
f
use
11,12,
23,26,
27,33,37,
45,46)
On-Board
Display
(see
also
fuse
23,27,45,
46)
,

32
1



30A
1
Cigar
lighter/ashtray
lights

33



10A



Central
body
electronics
(ZKE
IV)
(see
also
f
use
7,
14,35,
43)
Charging
socket
Engine
compartment
light
(also
see
fuse
37)
Instrumenf
illumination
(see
also
fuse
22,
25,37)
Interior
lights
(also
see
fuse
7,
43)
License
plate/luggage
compartment
lights
(see
alsofuse
37)
On-Board
Computer
(see
also
fuse
11,12,
23,
26,27,31,37,
45,46)
Park/taillights
(see
also
fuse
37)
Telephone
(see
also
fuse
43)

34



15A



Crash
control
module
Turn
signals/hazard
lights
(see
also
fuse
23)

35



25A



Central
body
electronics
(ZKE
IV)
(see
also
fuse
7,
14,33,
43)
Central
locking
(seealsofuse
7,
26,
28)
Convertible
roof
(see
also
fuse
7,
27,42,
43)
Roll-over
protection
(see
alsofuse
7,
42,
43)

36
1



30A
1
Wiper/washer
(seealso
fuse
44,45)

37



10A



Cassette
compartment
light
Engine
compartment
light
(also
see
fuse
33)
Heating
andA/C
(IHKR
E36)(see
also
fuse
16,20,
23,
31,39,41,
48)
Instrument
illumination
(seealso
fuse
22,
25,
33)
License
plate/luggage
compartment
lights
(see
also
fuse
33)
On-BoardComputer
(seealsofuse
11,12,
23,26,
27,31,33,
45,
46)
Park/taillights
(seealsofuse
33)

38



30A



ABS
(see
alsofuse
10,
21,23,
27,46,
47)
AST
(see
also
f
use
10,21,
26,27,
46)

ELECTRICAL
COMPONENT
LOCATIONS



610-29

fuse



1
Rating



1
Protected
Circuit

39



7
.5A
~
Engine
control
module
(see
alsofuse
16,28)
Heating
and
A/C(IHKRE36)
(see
alsofuse
16,20,
23,31,
37,41,
48)

40
1



30A
1
Power
seats
(seealsofuse
5)
41



30A
~
Heating
and
A/C(IHKRE36)(see
also
fuse
16,
20,
23,
31,37,39,
48)
Radiator
auxiliary
fan

42



7
.5A
~
Airbag
(SRS)
(see
also
fuse
26,
43)
Convertible
roof
(see
also
fuse
7,
27,35,
43)
Rol¡-over
protection
(seealso
f
use
7,
35,
43)

43



5A



Anti-theft
system
(Alpine)
(seealsofuse
47)Airbag
(SRS)
(seealso
fuse
26,
42)
Central
body
electronics
(ZKE
IV)
(see
also
fuse
7,
14,
33,35)
Central
locking
(see
also
fuse
7,
35)
Convertible
roof
(see
also
f
use
7,
27,35,
42)
Interiorlights
(also
see
fuse
7,
33)
Rol¡-over
protection
(see
also
f
use
7,
35,
42)
Telephone
(see
also
fuse
33)

44



15A
~
Glove
compartment
light
Sound
system
(seealsofuse
9)
Wiper/washer
(see
also
fuse
36,37,
45)

45



7
.5A



Multi-function
clock
(see
alsofuse
23,26,27,
31,46)
On-Board
Computer
(see
also
f
use
11,12,
23,
26,27,31,
33,
37,
46)
On-Board
Display
(see
also
fuse
23,27,
31,
46)
Wiper/washer
(see
also
f
use
36,
44)

46



15A



ABS
(see
also
fuse
10,
21,
23,27,38,
47)
AST
(seealso
fuse
10,21,26,
27,
38)
Brake
lights
Cruise
control
(seealsofuse
28)
Driveaway
protection
(EWS
II)
(seealsofuse
28,31)
Electronic
transmission
control
(A4S
310R)
(see
also
fuse
26,
28)
Instrument
cluster
(see
also
fuse
23,
27,
31)
Multi-function
clock
(see
alsofuse
23,26,
27,
31,45)
On-Board
Computer
(seealsofuse
11,
12,
23,26,
27,31,
33,37,
45)
On-Board
Display
(seealso
fuse
23,27,31,
45)

47



15A



ABS
(see
also
fuse
10,21,23,
27,38,46)
Anti-theft
(Alpine)
(see
alsofuse
43)

48



40A



Heating
and
A/C
(IHKR
E36)(see
also
fuse
16,
20,23,
31,37,39,
41)

WARNING
-

"
Fuse
desfgnations
and
locations
are
subject
to
changeand
may
varyfrom
car
to
cal
depending
on
options
.
If
questions
arise,
please
remember

that
an
authorized
BMW
dealer
is
the
bestsource

for
the
mostaccurate
and
up-to-date
information
.

"
To
locate
fuses
47-48,
refer
to
Fuse
Positions
inthis
repair
group
.

FOSE
POSITION
TABLES

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

WARNING

Your
common
sense,
good
judge-

ment,
and
general
alertness
are
cru-

cial
to
safe
and
successful
service

work
.
Before
attempting
any
work
on

your
BMW,
read
the
warnings
and

cautions
on
page
vi¡
and
the
copyright
page
at
the
front
of
the
manual
.
Review
these
warnings
and
cautions
each
time
youprepare
to
work
on
your
BMW
.
Please
also
read
any
warnings
and
cautions
that
accom-

pany
the
procedures
in
the
manual
.

A

ABS
(anti-lock
brakes)

See
Brakes
Accelerator
and
throttle
linkage
See
Maintenance
program
Air
conditioning
general
information
640-1
air
distribution
motor,
replacing
(rotary

knob)
640-10
air
distribution
motors
640-9

blower
motor,
removing/installing

640-1blower
motor
resistor
pack,
replacing
640-3
compressor,
replacing
640-12
compressor
clutch
640-13
condenser,
replacing
640-14
control
head
640-7
removing/installing
(digital
-display)

640-8
removing/installing
(rotary
knob)

640-7
control
module
removing/installing
(digital-display)
640-8
removing/installing
(rotary
knob)
640-8
evaporator,
removinglinstalling

640-17
evaporator
temperature
sensor,

replacing
640-17

expansion
valve,
removing/installing

640-16
microfilter,
replacing
640-18
receiverldrier,
replacing
640-15
sensor
fan
forinterior
temperature,

replacing
640-9
warnings
and
cautions
640-11

Air
distribution
(flap)
motor

See
Air
conditioning
See
also
Heating
Air
filter
See
Maintenanceprogram

Airbag
system
(SRS)
general
information
721-1

contact
ring,
replacing
721-3

driver
side
airbag,removing/installing

721-5
front
crash
sensor,
replacing
721-4

front
side-impact
airbag,
removing/
installing
721-7

front
side-impact
airbag
crash
sensor,

removing/installing
721-5

passenger
side
airbag,
removing/

installing
721-6
sensors
and
electronics
721-1

SRS
warning
light
and
fault
display

721-2
systems
721-1
ZAE
control
module,
replacing
721-5

Alarm
system
See
Central
locking
and
anti-theft

Alternator
See
Battery,
starter,
alternator

Anti-freeze
(Engine
coolant)

See
Maintenance
program

Anti-theft
See
Central
lockíng
and
anti-theft

AST
(Al¡
season
traction)
300-4

ATF
(Automatic
transmission
fluid)

See
Automatic
transmission

Automatic
transmission

See
alsoTransmission-general
general
information
240-1

ATF,draining
and
filling
240-2

ATF
leve¡,
checking
240-1
transmission
removaland
ínstallation

240-4
transmission,
removinglinstalling
240-4
transmission
service
240-1

Auxiliary
fan
See
Cooling
system
Axle
joint
See
Maintenance
program

B

Back-up
light
switch
See
Manual
transmission
Balljoint
See
Front
suspension
Battery
See
Battery,
starter,
alternator

Battery,
starter,
alternator
See
also
Maintenance
program
general
information
121-1

alternator,
removing/installing
(4-
cylinder
engine)
121-5
alternator,
removinglinstalling
(6-
cylinder
engine)
121-6
alternator
brushes,
inspecting/
replacing
121-7
alternator
service
121-4
batterycharging
121-4
battery
load
voltage
test
121-4

batteryopen-circuit
voltage
test
121-4

battery
service
121-3

INDEX
1

Battery,
starter,
alternator
(cont
.)
battery
testing
121-3
charging
system
quick
check121-2
charging
system
troubleshooting
121-
2
hydrometer
testing
121-3
solenoid
switch,
removinglinstalling
121-10
starter
service
121-7
starter
troubleshooting
121-7
starter,
removing/installing(4-cylinder
engine)
121-8
starter,
removing/installing(6-cylinder

engine
with
automatic
transmission)

121-9
starter,
removing/installing
(6-cylinder
engine
with
manual
transmission)
121-8
static
current
draw,
checking
121-2
voltage
regulator,
removing/installing
121-6
Bearing,
wheel
See
Front
suspension
or
Rear

suspension
Blowermotor
See
Air
conditioning
See
also
Heatíng
BMW
emblem
See
Exterior
trim,
bumpers
Body-general
general
information
400-1

body
assembly
400-1
central
body
electronics
400-4
convertible
models
400-2
coupe
models
400-2
electronic
immobilizatíon
system
400-
4
exterior
and
aerodynamics
400-2

heating
afhdair
conditioning
400-5

instruments
and
controls
400-4
interior
equipment
400-3
seats
and
seatbelts
400-3
Body
side
molding
See
Exterior
trim,
bumpers

Brake
fluid
See
Maintenance
program

Brakes
general
information
340-1
antilock
brake
system
(ABS)
340-11
inspection
340-12
wheelspeed
sensors,
replacing

340-12
bleeding
brakes
340-3
brake
booster,
removinglinstalling
340-8
brake
caliper,
removing/installing

340-6
brake
pads,
calipers,
and
rotors
340-3

brake
pads,
replacing
340-4
brake
rotor,
removing/installing
340-7
master
cylinder,
removing/installing

340-7
parking
brake
340-10
adjusting
340-10
.
cable,
replacing
340-11
shoes,
removinglinstalling
340-11

WARNING

Your
common
sense,
good
judge-
ment,
and
general
alertness
are
cru-
cial
tosafe
and
successful
service
work
.
Before
attempting
any
work
on
your
BMW,
read
the
warnings
and
cautions
on
page
vi¡
and
the
copyright

page
at
the
frontof
the
manual
.
Review
these
warnings
and
cautions
each
time
you
prepare
to
work
on
your
BMW
.
Please
also
read
any
warnings
and
cautions
that
accom-
pany
the
procedures
in
the
manual
.

Fuel
pressure
regulator
See
Fuel
injection
Fue]
pump
general
information
160-1
electrical
tests
160-7
power
consumption,
testing
160-7
delivery
tests160-8
delivery
volume,
testing
g
160-9
electrical
circuit,
checking
160-7
fuse
and
relay
160-6
level
sender
See
pump/fuel
leve¡
sender
operating
fuel
pump
for
tests
160-6
pump/fuel
level
sender
(left
side),
removing/installing
160-6
pump/fuel
leve¡
sender
(right
side),
removing/installing
160-5
relieving
fuel
pressure
and
connecting
fue¡
pressure
gauge
160-8
Fueltank
and
lines
general
information
160-1
draining
160-2
evaporative
control
system
160-4
leve¡
senders,
testing
160-5
removing/installing
160-3
Fundamentals
for
the
do-it-yourself
owner
general
information
010-1
advice
for
the
beginner
010-4
cleanliness
010-4
electrical
testing
010-6
gaskets
and
seals
010-5
non-reusable
fasteners
010-5
planning
ahead
010-4
tightening
fasteners
010-5
wire
repairs
010-6
buying
parts
010-6
genuine
BMW
parts
010-6
information
you
need
to
know
010-7
non-returnable
parts
010-7
emergencies
010-11brake
fluid
leve¡
010-13
car
will
not
start
010-11
changinga
tire
010-11
check
enginewarning
light
010-13
dim
Iights
010-13
jump
starting
car
010-12
low
o]I
pressure
010-13
overheating
010-12

Emergencies
(cont
.)
spare
parts
kit
010-14
towing
010-13
gettingstarted
010-2
lifting
thecar
010-3
raising
car
safely
010-3
safety
010-2
working
under
car
safely
010-4
how
to
use
this
manual
010-2
warnings,
cautions
and
notes
010-2
service
010-7
tools
010-7
basic
tool
requirements010-8
BMW
specialtools
010-11
feeler
gauges
010-10
jack
stands
010-9
oil
change
equipment
010-9
torque
wrench
010-10
volt-ohm
meter
(VOM)
or
Multi-
meter010-10
Fuses
See
Electrical
component
locations

G

Gaskets
See
Fundamentals
for
the
do-it-
yourself
owner
Gearshift
See
Gearshift
linkage
Gearshift
linkagegeneral
information
250-1
automatic
shiftlock,
checking
function
250-5
automatic
transmission
gearshift
250-
3
gear
position/neutral
safety
switch,
replacing
(automatic
transmission)
250-4
gearshift
lever,
installing
(manual
transmission)
250-2
gearshift
lever,
removing
(manual
transmission)
250-1
gearshift
mechanism,
adjusting
(automatictransmission)
250-3
manual
transmission
gearshift
250-1
shift
interlock,
checking
function
(automatic
transmission)
250-6Glass
See
Door
windows
Glove
compartment
See
Interior
trim
Grille
See
Exterior
trim,
bumpers
Guibo
(flex
disc)
See
Driveshaft

Handle,
door
See
Doors
Hardtop
See
Body-general
Headlight
See
Exterior
lighting
Headlight
switch
See
Switches
and
electrical
accessoriesHeater
box
See
Heating
Heater
core

See
Heating
Heater
valve
See
Heating
Heating
general
information
640-1
air
distribution
motors
640-9
air
distribution
motor,
replacing
(rotary
knob)
640-10
blower
motor,
removing/installing
640-1blower
motor
resistor
pack,
replacing
640-3
control
head
640-7
removing/installing
(digital-display)
640-8
removing/installing
(rotary
knob)
640-7
control
module
removing/installing
(digital-display)
640-8
removing/installing
(rotary
knob)
640-8
heater
box,
removing640-4
heater
core,
replacing
640-6
heater
core
temperature
sensor,
replacing
640-7
heater
valve,
replacing
640-3
rear
window
blower
(convertible
models)
640-10
reas
window
defogger
640-10sensor
fan
forinterior
temperature,
replacing
640-9warnings
and
cautions
640-11
Hood
See
Fenders,
engine
hood

Idle
speed
See
Maintenance
program
Idle
speed
control
valve
See
Fuel
injection
Ignition
switch
See
Switches
and
electrical
accessories

INDEX
5