1994 BMW 325i ele-96

GENERAL

This
section
contains
wiring
diagrams
for
1992
through

1998
BMW
3
Series
models
.

WARNING
-

On
cars
equipped
with
airbags,
special
precautions
apply
to
any
electrical
testing
or
repair
.
The
airbag
unit
is
an
explosive
device
and
must
be
handled
with
exterme
care
.
Before
starting
any
work
onan
airbag
equipped
car,
refer
to
the
warnings
and
cau-
tions
in
720
Seatbelts
and
721
Airbag
Systems
(SRS)
.

NOTE-

The
"



gear
position/neutral
safetyswitch
is
also
some-
timesreferred
to
as
the
automatic
transmission
range
switch
.

"
The
EWS
11
system
is
also
sometimes
referred
to
as
the
Driveaway
Protection
System
or
the
electronic
im-
mobilization
system
.

ELECTRICAL
WIRING
DIAGRAMS



ELE-1

Electrical
Wiring
Diagrams

GENERAL
.
.
.
.
.
.
.
.
.
................
.
.
.
ELE-1



Horns



.....
.
.....
.
.
.
....
.
.
.
.
.
...
.
.
ELE-153

Instrument
Panel
.
.
.
.
.
.
..............
ELE-165

ELECTRICAL
WIRING
DIAGRAMS
...
.
.
.
ELE-2



Interior
Lights/Illumination
.............
ELE-211

ABS



..............
.
.
.
.....
.
.....
ELE-117



Lumbar
Control
.
....................
ELE-247

ABS/AST
.............
.
.
.
...
.
.
.
.....
ELE-120



On-Board
Computer
..................
ELE-173

Airbag
(Supplemental
Restraint
System)
..
ELE-140



Park
Ventilation
.
.
.
...........
.
...
.
..
ELE-139

Air
Conditioning
and
Heating
.
.
.
.
.
.
.....
ELE-129



Power
Distribution
......
.
...
.
.
.
.
.
.
.
...
.
ELE-2

Anti-Theft
(Alpine)
..........
.
.
.
...
.
...
ELE-144



Power
Door
Locks
.
.
......
.
.
.
.
.
.
.
.
.
..
ELE-226

Anti-Theft
(EWS
II)
.
........
.
.
.
...
.
...
ELE-150



Power
Mirrors
...
.
.
.
......
.
.
.
.
.
.
.
.
.
..
ELE-241

Body
Computer
Module
.....
.
.....
.
...
ELE-176



Power
Seats
......
.
......
.
.
.
...
.
.
.
..
ELE-243

Charging
System



.
.
................
.
.
.
ELE-67



Power
Sunroof
.
.
.
.
.
.
.
...............
ELE-248

Convertible
Top
.
.
.
.
................
.
.
ELE-253



Power
Windows
.
.
.
.
.
.
.....
.
.........
ELE-231

Cruise
Control
..
.
.
.
...........
.
....
.
.
ELE-112



Radio/Cassette/CD/Speakers
..........
ELE-255

Data
Link
Connector
................
.
.
.
ELE-86



Rear
Window
Defogger
...............
ELE-160

Engine
Cooling
.......
.
.......
.
....
.
.
.
ELE-94



Shift
Interlock
.
.
.
.
.
.
.
.
...............
ELE-110

Engine
Management
...
.
.......
.
....
.
.
.
ELE-70



Starting
....
.
.
.
.
.
...
.
................
ELE-63

Exterior
Lights
........
.
.
.
.
.
.
.
.
.
......
ELE-194



Transmission
Electronics
.
..............
ELE-96
Ground
Distribution
....
.
.
.
.
.
.
.
.
.
.......
ELE-35



Warning
System
:
Chimes
.............
ELE-178

Headlights/Foglights
...
.
.
.
.
.
.
.
.
.
......
ELE-180



Wiper/Washer
.
.....
.
...............
ELE-155

Heated
Seats
........
.
.
.
.
.
.
.
.
.
......
ELE-245

ELECTRICAL
COMPONENT
LOCATIONS

Relayand
fuse
positions,
ground
locations
...........
.
.
.
.
.
.
.
.
.
................
seeRepair
Group
610

CAUTION-

Always
switchthe
ignition
off
and
disconnect
the
negative
(-)
battery
cablebefore
removing
any
electrical
components
.

"
Prior
to
disconnecting
the
battery,
read
the
bat-tery
disconnection
cautions
given
at
the
front
of
this
manual
on
page
viii
.

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

-Always
switch
a
test
meter
to
the
appropiate
func-
tion
and
range
before
making
test
connections
.

"
All-Season
Traction
(AST)
is
also
referred
to
as
ASC
or
ASC+T
.

GENERAL

ELE-96
ELECTRICAL
WIRING
DIAGRAMS

DATA
LINK
CONNECTOR

WHT/1110
COMPUTER
DATA
~~
LINES
SYSTEM



W
H
7VEL
~~
1

6



GRV/B
RN
EGS
WARNING
LP
I~
I_
_
__
HT
S
1K
FUELCONSUMPTION
21
W

INSTRUMENTCLUSTER
X16

BRN
-
1
VIO
SHIFT
LK
SOL
VEL/BLU



BRN
AUTOMODE
SIG



~,3

4
BR
1
N/GRV



G123
4-
IG
TIMING
IN
T
VALVE1
LIGHTS
BLU/RED



DR



ORG
5
NCA
I

SYSTEM
S-FROG
IND



7



YELIGRN



"
VEL/GRN



22



SOLENOID
VALVE2
GR
NOT
RNGSIGL3
9
BLU/WHT



-XK
USED)



GRN
6
I
NCA

TIM
EASSIG(FL)



WH7/BLK
I

B

-PROGIND



((NOT
10
YEL/BLU
A



"
VEL/BLU
23



I



PRESSURE
FL
PMPFLY
CTRL



11
ELK



%69
USED)



I



REGULATOR
M-PROGIND



12
YELIWHT



RED



9



NCAT%DDATA
LK



13
WHTIVIO



GRY



1



NCA
14
BLK
Do
TPUT
BPD
(-I



I



BAND
5BRNIGRV



BRNIGRY
KSWTESTSIG



"



I



I
SOLENOID

SW

1



I



BRN/I



110
2
NCA
)176
CLR



GRY'
OILTEMPSIG



8
BRAKE



I
I
TOROUE
S
PDSENSSHD



16
NCA



r



LIGHT
I
CONVERTER
~



(ITCH



I



C
LUTON
19
BR
N
GND



I
I



I



I



SOLENOID
OUTPUTSPD(+)
20V
EL



T



y1



I
-
ZJ



I



I



VALVE
P/COOMPON



1BLK/BLU~-



-



BLU



7



NCA
22
ELK



BR
`N



8



NOA
OILTPSIG(+)



BRN



I
3
BLUIBLK



I



OIL
GRRNGSIGLI



"



TEMPERATURE
4



I
BRNI
RxDDATALK
~6WHT/VEL



1



BLK



3I



NCA



S
ENSOR
6
BRN/BLK



G200
-



I



CLR



4



NCAGR
RNG
SIG
L2



1
,27



I
xIiS21
SPEED
1



I
~~
NCASENSOR
BATTERY
VOLT



B
RED



YE
L



1
FAULTINDBIG



9GRV/B
RN



-v



BLK
2



NLA
0
GRV/VEL
3
ICK-DO
W
N
SIG
1
VEL/WH7



"511



TRANSMISSION
WHT/
BLK

Transmission
Electronics

1992
3181,
318is,
3251
&
325is

HOTATALL
TIMES



r



_JFRONTPOWER



r_
__
__
_1
_,
B+



FUBE



FUSE



FUSE



DISTRIBUTION
BOX



'
JUNCTION
I
F26



F28



F48
I
L



L
161L
--
121l



16-J



RED/WHT



RED
"
RED/WHT
"
167q
3z



xi
.DOiB



{L
_CON7R
__
J
I
6
xiDD-tz



WHT



I
ENGINEOL
I
VIO/VEL



I



MODULERELAY
I
GRN/
OR
./
SYSTEM
RED
I



WHT
GRYI



"



ENGINE
I



I
"
~



CONTROLS
I



I
YSTEM

{5
___J
I

HOTINRUN



HOT
IN
SUN



HOT
IN
ACCV,RUN
&START
&51ART
&START

K
MAN
MODESIG



"



VALVE
UNIT
~
J
32
3BR
.IW
.T



BLK
74
GO
RNG
BIGL4f
ION-BOARD
FLPT



MPRLYCTRL
S-PROGBUTTON



4
VEL/GRN
5BRN/VID



WHT/BLK6'



ION-BOARD



B
W
RN/HT/
OB
R
L
G
K



1117IDKV



I
SHIFTLKGND



COMPUTER



FUELCONSUMPTION
GND
68RNIOMG



X1D
Zt
I
__J



"
--
BLKIBL
U
48
VOLTSUPPLV



OMPCTRL
I
37
RED/WHT



BRN/GRV



64
I

TCCSOLCTRL
6BLU



2



BR
IDRNVERANGEP/N
I
BRN/
SKPDLPOSIT
.
.



9
BLU/RED



VIO



NCA



SHIFTLOCK
II



J
HVO
CTRL
(+)



ENGINE
CONTROL

F
M
MODULE(0E)HVD
CTRL(-)



INSTRUMENT
CLUSTER
SYSTEM

0
RED
41
GRY



I
,42



VIO
1I
NCA
SOLVAL2CTRL



43
GRN
'44/45
VIO

VID/
E
~~~
1I1
..
L

BRAKE
(
LIGHT
I
(SWITCH
!
_
ZJ
2
T

EO
BLU/R

BLK/BLU

BANDSOLCTRL
,



-
'46'vi78
DR.
SOLVAL
1
CTRL



14



_
g



GRY/RED



2
r



J
(OUTPUT
DINNER
t0



GRV/51



I



RED
INTERIORLIGHTS
12



SYSTEM
Y53
SOLGNDCTRL14
SRN
TPSSIGNAL
5BRNIORG

TRANSMISSION
CONTROL



"



BLU/BLK
MODULE
LEGS)

GRNIGRY
BRN/WHT
9
0

BLU/



E



14

BRNI

I



COMPRESSOR
I
CONTROLRELAV
I
FRONTPOWER
DISTRIBUTION
BOX

SOLENOID

BRN/6LKI



GRNIWHT
2
BRNIORG



"
BRN/ORG
J~G7-
3



"



OFFGRV/VE
'I
L

RE
.'



E%LEGHOS,'
BLU/VEL
"
BLU/YEL
BRN/



SYSTEM



CLOSEDIN
GRV/VEL~(EARLV
PROD)



BLK

R

REVERSE
SMISS



BLK
(LATEPROD)
TRAN
ON



BRN/



EGSA4S310R
POSITION
I



BRN/POSITION



GRY
ELK
1



I



L1
L2
L3
L4



AUTOMATIC
INDICATOR



25

I
r

LIGHT



KICK



P
11
0
1



TRANSMISSION
DOWN



8



II



1
X1070



R
10
00



RANGESWITCH
.ONI



1



SWITCH



I
e6
I



I



I



I



I1
"



BRN



I
I



I)



I



11
0
I
-
MAN
I



"



NCA



I)



CRUISE
CONTROL



II



D
00
D
1
-



_
BRN



B



3
0011
PROGRAM
SWITCH



RNI



STARTER
RELAY



MODULE



ON-BOARD



2



1



0



1



1
1



(TEMPOMA7)
COMPUTER
(M
-A
L
ULTI-FUNCTION



100
10
88905



G201



OLOOKI

WARNING

Your
common
sense,
good
judge-
ment,
and
general
alertness
are
cru-
cial
to
safe
and
successful
service
work
.
Befcre
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
workon

your
BMW
.
Please
also
read
any
warnings
and
cautions
that
accom-
pany
the
procedures
in
the
manual
.

Door
glass
See
Door
windows
Door
windows
general
information
512-1
front
door
window
(2-door
models)
adjusting
512-7
removing/installing
512-5
front
door
window
(4-door
models)
initíalizing
512-1
removing/installing
512-2
rear
door
window
(4-door
models)
removing/installing
512-4
fixed
glass,
removing/installing
512-
4
rear
vent
window
or
vent
latch,
replacing
(2-door
models)
512-11
window
regulator
and
motor,
removing/installing
512-12
window
regulator
service
512-12Doorcheck
See
DoorsDoor
handle
See
Centrallocking
and
anti-theft
Door
panel
See
Doors
Doors
general
information
411-1
door
adjustment
411-2door
check,
replacing
411-2
door
panels
411-3
doors411-1
front
orrear
door,removing/installing
411-1
front
door
panel,
removing/installing

411-3
rear
door
panel,
removing/installing
411-4
rearsidepanel,
removing/installing
(two-door
model)
411-4
Drive
axle
See
Rear
suspension
Driveability
troubleshooting

See
Engine-general
Driveshaft
general
information
260-1
center
bearing
assembly,
replacing
260-6
driveshaft,
aligning
260-3
driveshaft,
installing
260-4

Driveshaft
(cont
.)
driveshaft,
removing260-4
driveshaftservice
260-3
flex-disc,
replacing
260-5
front
centering
guide,
replacing
260-7
guibo
See
flex-disc
troubleshooting260-1

ECM
(engine
control
module)
pin
assignment
See
Fuel
injection
Electrical
circuit
See
Electrical
system-general
Electrical
component
locations
general
information
610-1
auxíliary
relay
panel
610-2
component
location
table
610-9
component
locations
610-3
fuse
position
tables
610-19
fuse
positions
610-1
relay
positions
610-2
splice
panel,
left
610-2
splice
panel,
right
610-3
Electrical
system-general
general
information
600-1
continuity,
checking
600-5
electrical
test
equipment
600-2
safety
precautions
600-1

short
circuits
600-5
short
circuit,
testing
with
ohmmeter
600-6
short
circuit,
testing
with
voltmeter
600-6
troubleshooting
600-3
voltage,
measuring600-4
voltage
and
polarity
600-1
voltage
and
voltage
drops
600-4
voltage
drop,
testing
600-4
wiring
codes
and
abbreviations
600-2
wiring
diagrams
600-2
wiring,
fuses
and
relays
600-1
Electrical
wiring
diagrams
general
information
ELE-1
wiring
diagrams
ELE-2
ABS
ELE-117

ABS/AST
ELE-120
airbag
(supplemental
restraint
system)
ELE-140
air
conditioning
and
heating
ELE-
129
anti-theft
(Alpine)
system
ELE-144
anti-theft
(EWS
II)
ELE-150
body
computer
module
ELE-176
charging
system
ELE-67
convertible
top
ELE-253
cruise
control
ELE-112
data
link
connector
ELE-86
engine
cooling
ELE-94
engine
management
ELE-70
exterior
lights
ELE-194
ground
distribution
ELE-35

headlights/foglights
ELE-180

INDEX
3

Electrical
wiring
diagrams
(cont
.)

heated
seats
ELE-245

horns
ELE-153
instrument
panel
ELE-165
interior
lights/illumination
ELE-211
lumbar
control
ELE-247
on-board
computer
ELE-173
park
ventilation
ELE-139
power
distribution
ELE-2
power
door
locks
ELE-226
power
mirrors
ELE-241
power
seats
ELE-243

power
sunroof
ELE-248

power
windows
ELE-231
radio/cassette/CD/speakers
ELE-
255
rear
window
defogger
ELE-160
shift
interlock
ELE-110
starting
ELE-63
transmission
electronics
ELE-96
warning
systems`
.
chimes
ELE-178
wiper/washer
ELE-154
Emergencies
See
Fundamentals
for
the
do-it-
yourself
owner
Engine-general
general
information
100-1
air
flow
measurement
and
vacuum
leaks
100-12
basic
engine
settings
100-11
basic
requirements
100-11
battery
voltage
100-12connecting
rods
and
pistons
100-1
cooling
system
100-5
cylinder
block
and
crankshaft100-1
cylinder
compression,
checking
100-6
cylinder
head
and
valvetrain
100-2
DISA
(dual
resonance
intake
system)
100-3,130-3
driveability
troubleshooting
100-8
engine
management
system
100-3
fuel
delivery
100-5
fuel
supply
100-14ground
connections
100-13
ignition
100-5
lubrication
system100-5
mechanical
troubleshooting
100-5
on-board
diagnostics
(OBD)
100-8
oxygen
sensors
100-11
preventive
maintenance
100-11
VANOS
(variable
valve
timing)
100-2warningsand
cautions
100-5
wiring
andharness
connections100-
13Engine
control
module
(ECM)
See
Fuel
injection
Engine
removal
and
installation
general
information
110-1
engine,
removing/installing(4-cylinder
engines)
110-1
engine,
removing/installing
(6-cylinder
engines)
110-4
Engine
coolant
temperature
(ECT)
sensor
See
Fuel
injection
Engine
hood
See
Fenders,
enginehood