Ecm BMW 318i 1995 E36 Repair Manual

0012531Fig
.
16
.
Engine
control
unit
(ECM)
compartment
cover
screws
(ar-
rows)
.

WIPERS
AND
WASHERS



611-
7

Fig
.
18
.
Wiper
assembly
electrical
plug
(arrow)
.

uu1zbs6

13
.
Cover
inside
edges
of
cowi
panelsheet
metal
with
thick
tape
to
prevent
damaging
it
during
wiper
assembly
re-
moval
.

14
.
Wrap
protective
tape
around
wiper
shaft
on
driver
side
to
prevent
damaging
sheet
metal
during
removal
.

15
.
Push
wiper
arm
shaft
down
into
cowiarea
and
maneu-
ver
wiper
assembly
outof
cowi
.

16
.
Installation
is
reverse
of
removal,
keeping
in
mind
:

"
Install
all
fasteners
finger
tight
first
.

"
Torque
topfasteners
in
sequence
indicated
in
Fig
.
17
.

Then
tighten
wiper
assembly
support
bolts
inside
air

plenum
.
"
Wire
tie
wiper
harness
lo
wiper
assembly
support
in-

side
plenum
.

"
Once
installed
;
wiper
motor
should
first
be
run
to
parked
position
and
switched
off
.

"
Next,
insta¡¡
wiper
arms
butnot
blades
.

"
Close
hood
and
fit
wiper
blades
:

"
Check
all
electrical
harness
fittings
and
sealing
grom-

mets
for
correct
reinstallation
.
Replace
al]
wire
ties
cut

during
removal
.

CAUTION-

The
gaskets
and
sealing
grommets
at
the
ECM
compartment
cover
(passenger
sideof
bulkhead)
must
be
installed
correctly
to
keep
moisture
out
of
critica¡
electrical
componente
.

Fig
.
17
.
Wiper
assembly
mounting
fasteners
(arrows)
.



Tightening
Torques

"
Wiper
shaft
nut
at
cowi
..
.
.
..
.......
12
Nm
(9
ft-Ib)

11
.
Remove
wiper
assembly
support
.
Refer
to
Fig
.
10
.



"
Wiper
support
to
wiper
assembly

or
to
body
.........
...
..........
10
Nm
(89
in-lb)

12
.
Separate
harness
at
bulkhead
connector
.
See
Fig
.
18
.



-
Wiper
arm
to
wiper
shaft
..........
25
Nm
(18
ft-Ib)

WINDSHIELD
WIPER
ASSEMBLY

GENERAL

E36
cars
are
equipped
with
integrated
automatic
heating

and
air
conditioning
systems
.
Many
of
the
procedures
given
in

this
repair
group
require
that
the
A/C
refrigerant
charge
be

evacuated
using
specialized
equipment
.
See
A/C
System
Warningsand
Cautions
later
in
this
repair
group
.

HEATER
AND
CONTROLS

Blower
motor,
removing
and
installing

NOTE-

On
6-cylinder
cars,
the
plastic
top
enginecover
and
fuel
rail
covermustbe
removed
.
The
fuel
injectorhamess
re-
taining
screws
must
be
removed
and
the
harness
set
aside
.
The
engine
control
module
(ECM)
cover
must
be
removed,
the
control
unit
connectors
unplugged
and
the
harness
pulled
out
of
the
way
.
See
130
Fuel
Injection
.

1
.
Disconnect
negative
(-)
cable
from
battery
.

2
.
Open
hood
.
Unclip
engine
bulkhead
plenum
grille
at

base
of
windshíeld
and
remove
grille
.
See
Fig
.
1
.

HEATING
AND
AIR
CONDITIONING



640-1

640
Heating
and
Air
Conditioning

GENERAL
.
...
.
....
.
.
.
.
.
.
.
.
.
.......
.
.
.
640-1



Heater
andA/C
air
distribution
motor,

replacing(rotary-knob)
.
.
...
.
.
.
.......
.
640-10

HEATER
AND
CONTROLS
.
.....
.
.
.
.
.
.
.640-1



Rear
Window
Defogger
.
.
.



.
.
.
.
.
.
.
...
.
.
.
640-10
Blower
motor,
removing
and
installing
.
.
.
.
.
.
640-1



Rear
Window
Blower
(convertible
models)
.
.640-10

Blowermotor
resistor
pack,
replacing



.
.
.
.
.
.
640-3



AIR
CONDITIONING
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
640-11
Heater
valve,
replacing
...........
.
.
.
.
.
.
.
640-3

Heater
box,
removing
and
installing
.
.
.
.
.
.
.
.
640-4



A/CSystem
Warnings
and
Cautions
.
.
.
.
.
.
:640-11

Heater
core,
replacing
.....
.
.
:
....
.
.
.
.
.
.
.
640-6



A/C
compressor,
replacing
.
.
::.
:
:
.
.
.
.
.
.
.
.640-12

Heater
core
temperature
sensor,
replacing
.
.
640-7



A/C
Compressor
Clutch
.
.
.
.
.
.
.
:
.
.
.
.
.
.
.
.
.
640-13

Heater
andA/C
Control
Head
.
.
....
.
.....
.
640-7



A/C
condenser,
replacing
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
640-14

Heater
andA/C
control
head,
removing



A/C
receiver/drier,
replacing
.
.
.
.
.
.
.
.
.
.
.
.
.
640-15
and
installing
(rotary-knob)
.
.
....
.
......
640-7



A/C
expansion
valve,

Heater
andA/C
control
head,
removing



removing
and
installing
...
.
.....
.
.
.
.
.
.
.
640-16
and
installing
(digital-display)
.
.....
.
.....
640-8



A/C
evaporator,
removing
and
installing
.
.
..
640-17

Heater
andA/C
control
module,removing



A/C
evaporator
temperature
sensor,

and
installing
(rotary-knob)
.
.
...
.
.
.
.
.
.
.
.
640-8



replacing
.
.
.
.
.
.
..............
.
.
.
.
.
..
640-17

Heater
andA/C
control
module,removing



A/C
microfilter,
replacing
......
.
....
.
.
.
..
640-18

and
installing
(digital-display)
.
...
.
.
.
.
.
...
640-8

Sensor
fan
for
interior
temperature,



TABLES

replacing
.
.
.
....
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
640-9



a
.
Blower
Motor
Test
Values
.........
...
.
.
......
640-3

Heater
andA/C
AirDistribution
Motors
.
.
.
.
.
.
640-9



b
.
Heater
Core
Temperature
Sensor
Test
Values
...
.640-7

c
.
Evaporative
Temperature
Sensor
Test
Values
...
640-17

d
.
A/C
System
Fluid
Capacities
(total)
..
..........
640-18

0012527

Fig
.
1
.
Detach
grille
retaining
clips
(arrows)
and
pull
grille
upward
and
out
of
rubbergasket
.

CAUTION-

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

HEATER
AND
CONTROLS

ELE-70
ELECTRICAL
WIRING
DIAGRAMS

I



02
SENS
SIB
I"7
7
I
02SENSGNDI)
I



GROUNDI
2



BR
,
'IB
BRN/BLU
I
IARCVALVEI
I
IsCVALVEI}
I



ECM
RELAY
I
EEVALVEI~
I
CVL4IGNCOILI
S7~LK
I



CVL3IGNCOILI
24L
BL1(

I



CVL2IGN
COILI'
B2
~
BLK
I
CVLIIGNCOILI
2
I



GROUNDI
B'=RN
I
GF
.uNDI
),
BRN
I



GROUNOI
3~
BR"
I
RUNIST
GRN
ARTI
S~
ENGINECONTROL
MODULE
(DME)

13B
START



1
GRN
I
DN

OFF
IGNITION
S
WITCH

8727
3

HOTATALLTIMES

UELINJECTION
VALVES

NCA"
=
It,
INCA
SPIN

BRN
GRN
~GRN
OF
N



/



GRN"
\
GRN

Engine
Management

19921
.8L
(1
of
2)

HOTAT
F4
X3X2
R1



ALLTIMES
I
XZ793
M
M
[]M[IM



AT
.
LINK
CONNECTOR
8B
3Dy
eB=85
.1
.1308
I

ii



w
>
3~

3

3
BRNIWH
INJCTRLI
32
BRNIYEL
T
INJCTRLI~
DLCI
je7



L



REO
I
RED
BATTERY
I
2S



RED



RED

FRONT_POWERDISTRIBUTIONBO%
_
_
___
_
_
_
____
_
_
I



ENGINE
CONTROL
MODULE
RELAY



FUEL
PUMP
RELAY

L

ECMFLY
CTRL
1)27



BFN
FP
FLY
CTRL
I
I'



SWORN
02SFLYCTRL
I
37



BRNIGRN



BRN
GRN
DLCI
80
GRNIBLU
RE
O
DLCI
,88



WHTIVIO

1
~1~

2oY
1
Y
I4Y
_
i
2Y
SY
BX
BY
4YBY

EVAPORATIVE



IDLESPEED



INTAKE
AIR
EMISSION
CONTROL
RESONANCE
VALVE



VALVE



CHANGEOVER
VALVE

ELE-72
ELECTRICAL
WIRING
DIAGRAMS

8727
5

I



~
)3
BRN/WHT
I



INJ1
INJ2I
5
I
BRNIRED
NJ
3
IJ4



BRNIYEL
I
I----
33
B
INJD
I~31



BR
-
RNINJ6I)l~
ECM
Fly
CTRL
I
FP
RLV
OTRL
I
02SRLV
CTRL
I~

SWITCHED
BATT
II

GROUND
1)34



BR
GROUND
])
S
SB
=
CYL61GNCOILI
51
B
KIVIO
CVL
S
IGN
OOIL
I
52LKIERN
CYL41GN
COILI
50LU
CVL3IGN
COILI~24



BLK/VEL
'I
I
C
YL2IGN
COIL23~1-KIRED
I
J
~25
BLK/WHT
I
CYLI!ONCO(L,
56
GRN
START/RUN
T
L______
ENGINECONTROL
MODULE
IOM
E)

HOTATALLTIMES
1
30
START
I
I
OFF
I
L_---_I
IGNITION
S
WITCH

1112
N3
N4
M5N6

Engine
Management

19922
.5L
(1
of
2)

FUEL
INJECTION
VALVES

117111
1121
1-

FI=-----r-_----1------k------f-----
:1
:NEI

IGNITION
COILS

FRONT
FO
W
ERDISTRIBUTION
BOX

871
851
87AAI
30y



86Z
~



1



30.L



85L
.
864,
B71

RED/WHT
////
_
RED
ENGINE
CONTROL
MODULE
RELAY

~2~
.2~
.



;
3121



31
;
.1
.21



2l
---
j
2_



2131
;1



2121
;1



ml



3131

-1
1
IT]
EVPPO
M
RA7IVE6719



CYLINDER
1



CYLINDER2



CYLINDER3



CYLINDER4



CYLINDERS



CYLINDERS



G703



IDLE
SPEED



EMISSION
CONTROLVALVE
VALVE

CYL
1-6
FUEL
PUMP
RELAY

.J

_BRNIVIO
_BR
N
BRN/GRN



I
GRN/VIO
BRN/GRN



BRN/GRN
RED/WHTREO/WHT
RED/WI-IT



RED/WHTRED/WHT

I



W/EGSRED
BATTERVI
j26
RED



.



RED
EVAPCTRLI
36
BRN
ISCCTRLI
2



WHT/YEL
ISCCTRLI
29
WHTIGRN



I



W/EGSGROUND
1
)6



BRN



1

ELE-74
ELECTRICAL
WIRING
DIAGRAMS

8727
7

IGNITION
SWITCH

in
RED
BATTERY
ECM
1'27
BRN
RLYCgXL
DI87
'WHT/VEL



WHT/VEL

TXDI88
WHT/VIO



WHTIVIO



'~



/
GRN/VIO

FPRLYCTRL
I
/



BRNIGRN



GRNVIO
023HTRCTRLI
37



BRN/GRN



BRNGRN
COMPUTER
WHT/VEL



I
RED/WHT
I
gl



BLKIVIO



ANTI-



DATA
LINES



WHT/VIO



RED
WHT
DRIVE
AWAYSIG
I~~THEFT



SYSTEM
{



R
I



SYSTEM



W/EGS



ED
WHT
e6
VIO/GRV



A/C
BLK/BLU



BLK
A/CSWITCH
I



VEL



SYSTEM



VEL023SIGNAL
I



70
71
BLK



SILK
02S
SIG
GND
I



4z



-
A/C
COMP
CUT
148
BLK/BLU



SLKIBLU



WHTIBLK

DKVPOTSIGI
//
BRN/ORG
fia
t
BR/GRV
IGNTIMING
I



BRN/BLK
I
~66
DRIV
E
RANGE
CVL4IGNCOIL
I}
I
27
YEL(ORBLK)
CVLSIGNCOILIl62
R~
ED(~RBLKi
CYL2101COIL
I
25



WI
ILK)
LK)
CVLIIGNCOILI
66
B
IGNGROUNDI
6



B,
-
RN~
-GROUND
SC
BRN
GROUNDI~

FUEL
INJECTION
VALVES

Engine
Management
1993-951
.8L
(1
of
2)

FRONTPOWERD_IS_TRI_BU_TIO_NBOX



_
______
I



ENGINE
CO
NTROL
MODULE
RELAY



FUEL
PUMP
RELAY

-~
I



I
CVL1



DVL2



CVL3



CYL4



A/T
RANGE



TRANSMISSIONCONTROLMODULE
(EGS)
SWITCH

ELE-78
ELECTRICAL
WIRING
DIAGRAMS

I
ACTIVATEVALVE
I
I
ACTIVATEVALVE
I
31
BR~NIVEI
I
ACTIVATEVALVEI
32
BRN/WHT
I
ACTIVATEVALVEI
3
BRN/YEL
I
BATTERYVOLTI
2S
RED
I



57
RED/WHT



NORMAL
ACTIVATERELA
YI
SPEEDRELAY
I
B
ECMRLYCVO
LTRT
L



27
BRN/WHT
I



1)54
RED/WHT
AT7ER
V
I



I
63
BRNIGRN
I
ACTIVATERELAVI~--~-
88
YJ~
HT/VIO
TXDI
RXD
1
8~7~
W
L
H=~
K
/YEL
1
.
t~p
B~/VIO



ANTI-THEFT
DRIVEAWAYSIGI
808p
BLK
SYSTEM
CRANKSHFTRPMI
PROGRAM
VOLTI
60
WHT/GRN
ACTIVATEA/CI
1I
BLK/
BLU
TEMP
SIGNAL)
66
GRY/)---~~SYGITEM



BLK
89
VIO/GRY
SIGNALA/C
ON
I
36
BLK/



"



BLK/BLU
AICCOMPCUTI
86
YEL
CAN
HIGH
CANLOWI
e~-
179
BRNIRED
RR
SPEEDSIGI



B~U
CY14IGN
COIL
I
23~
CYL3IGNCOILI
5
2
oR
E
D
CYL2IGN
COIL
I



49



-
CYL
11GN
COIL
I
5=
IGNGROUNDI
INJGROUND
AL-'
RN
OROUNDI
IGNSWITCH
I)
5
=

ENGINECONTROL
MODULE(DME)
HOTATALLTIMES

STRT~~
l
GRN
_
BRN
I



RuN~_J
p



I



I
_---
--
.-----
_
1
G117

I



"
161
I



ACC
I
OFF

IGNITION
SW
ITCH

B,JUMPSTART
JUNCTION
POINT
(EXCEPT318U)

88547

UEL
INJECTION
VALVES

CYL4



CYL3



CYL2



I
CYLI
il
zlxl
W/21i/
il
2
W
3
_33

rcl
ml¢



a.
GRN

7997
1996
86
8
GRN
7996
4
BR
11
N
BRN



I
DR.GRN



/
GRN
851



G777



Z
GTN

31811
(RD

UNLOADERRELAY



EXCEPT
I
RED
TERMINAL15



31871
l~
(19970NLY)

Engine
Management

1996-971
.9L
:
(1
of
2)

HOTINACC,RUN
ANDS=ART
_
,FRONT
USE
POWER
I



F46



I
DISTRIBUTION
L
I
1
-=J
BDXX
10016

mlulm

W/ASC,
EXCEPT
1997,
199831871
W/ABS
ABSCONTROL
MODULE/
HYDRAULIC
UNIT

MODULE
(ABSIASC)

FRONT
POWER
DISTRIBUTION
BOX



_
rENGINECONTROLMODULERELAV
FUELPUMPRELAY

I

WIEGS
1

EXCEPT
1998
31811
mI
j

1,1,3A,2,1,



2,J,3,4
1,



2J,3,IJf,



2,1,3,1

L,



=,1=7,,
lS
J,



65,1,=8,1,
48,1,60,L,40,1,
87,E88},54},55A,28},
1
1GNI
C
OIL$
S

II
IIII
II
I______
I
I_______________
6119



CYL1



CYL2



CYL3



CYL4



SLIFCONTROL



TRANSMISSION
CONTROL
MODULE
(EGS)

f-W/EGS

ELE-82
ELECTRICAL
WIRING
DIAGRAMS

I
AC7IVATEVALVEII
BRNIWHT
I



ACTIVATE
VALVE
I'3



BRN/V
EL

10862
4

SIGNPLINPUTI
1T2



B
AN
ACTIVATE
VALVE
I--
GROUND
I
4B6~GRV/VIO
ENGINO1CATOR
I
~

10
BLK/VIO
DRIVE
AWAY
SIG
II
11
BLKIGRY

AC
TIVATEAIC
ACTIVATE
VALVEI
31



BRNIBLU
ACTIVATE
VALVE
I
32~BRTI/GRN
120
BLK
CRANKPOSIRPMI
Y-
CAMSHAFTPOSI
21

I

BATTERYVOLTI126
RED
ECM
RLV
CTRL
1
)21
8RN/WHT
18
BRNIRED
INTKAIRTEMPI
I

I
406
CVL3-4KSI
42
GRNIRED
FU
ELCONSUMPTI
THROTTLE
POST
44



B
RN/VIO

I

A/CCOMPCUT136
8LK/BLU



"
8LK/BLU

II

5VSUPPLVI
53
ISCVALVE
CTRLI
2



/GRN
30
BRN
02SENSH7NGI~-
19
VEL
02SENSORSIGI~
1
BRN
02
SENS
HTNG
I
SENSORGRNOI
4
23
BLU
CVL4IGNCOIL
CVL3
ON
co
ILI
2r-
INJGROUND
I
128
BRN
GROUND
GROUNDI)~pl

L_____!
ENG
ME
CONTROL
MODULE
(DME)

HOTPTALLTIMES
___
I



START
.1
1
GRN
I



RUN
~_I
I
18
I



~
ACC



I
OFF
IGNITION
SWITCH
BA7TERVVOLTI
54
RED/W~



H
IGNGROUNDI
50
READ
CYL21GN
COIL



ED
I
l
~~
CYL1IGNCOIL
49
WHT
I
IGNSWITCH
I
56
GR
"GRN
B7
REOIWHT
ACTIVATE
FAN
ACTIVATE
VALVE
I

8

tf

FUELINJECTIONVALVES



HALLEFFECT
HOTFILMAIR



CAMSHAFT



FRONT
POWER
DISTBIU710NBOX



______
.
___
CVL4CVL3
CVL2
CYLl
MASSMETERSENSOR
r



i

SYSTEM

NORMAL
SPEEDRELAY

Engine
Management

19981
.9L
(1
of
2)

IGNITION
JJ
U
COILS
II

GA
.

4
3~2
1

a



mIm
a

OXVGENSENSOROXVGENSENSOR
IDLESPEED
EVAPORATIVE
INTAKEAIR
CONTROL
EMISSION
RESONANCE
VALVEVALVE
CHANGEOVER
VALVE

I
-

"HIRED
2

HOTAT



HOTAT



HOTAT



HOT
IN
RUN



HOTAT



HOTINACCY



HOTAT
I



12



BLK/WHT



-
BLK/WHT



ALLTIMES



ALL
TIMES



ALLTIMEB



ORSTART



ALL
TIMES



RUNOR
START



ALL
TIMES

INSTRUMENT
CLUSTER

--~
BS~ELK/GRY

I



I)
BS



VIO/GRN
I



I
)9B
BLK/BLU
I



1
7e
BLK
6
I---1
BLK/BLU
ENGINECONTROL
MODULE
(DME)

r----------,
1
BRN/RED
I



FUNCTION
LIGHT-RECIRCI
)2
I



FUNCTION
-16"
FEAR
DEF06
1



FUNCTION
LIGHT-A/CI



3



BRN/YEL
1



IEAROEFOG61I
5
WHT/GRN
I



PIRCIRCULATIONSWI
6
WHT/RED
I



Al
CSWITCHI



Z



WHT/BLU
B
-
1
~
BEN
G203

TRANSMISSION
CONTROLS
SYSTEM

3
IGNITION[)
GRN/YEL



GRt
NIBLU
LEFTWATERVALVE(
5~YEL/VIOO

INTEGRATED
CLIMATE
REGULATION
CONTROL
MODULE

8848
1

A
STARTERSIGNAL
I
STARTINGSYS
GENERATORSIGNALI
2
CHARGINGSYS

BATTERY
;15
FEWYEL
GROUNOI
16BFNN
GROUND(
17
BRECM(
18V
L
O/GRY

I)1)20
NOMINALTEMPVALVE-RIGHT(
21
YEL/WHTNOMINAL
TEMP
VALVE-LEFTI
22
YEL/BLU
NoMINALAIRFLOW
VALVE



23
YEWBLK
INTERIORTEMPSENSORI
24
YEL
1)25
4~
I



GROUND(
2B
BRN
l----------Ja

Air
Conditioning
&
Heating

1992
(1
of
2)

CONTROLPANEL

I
VE=1=LESPEED
I
~
--
------
-_
r
fiFUBE
FUSEFUSEFUSE
19



31



23



39



15
BA



BA



7
.6A



BA



7
30A
-----------
.~------_
--
22
¢r
nn

ELECTRICAL
WIRING
DIAGRAMS
ELE-129

WATER
VALVE
BE
IFRONT
ROWER



,
I
VIII



JII
(ASSEMBLY
DISTRIBUTION
(
BOX

-
.

MIX
ACTUATOR
Wi
SPNIRED
EVAP
TEMPI
)22
GRY

HEATER
TEMP-LEFT~
24
YELIRED
HEATER
TEMP
R
lG
HT'



26
YEL/SLU

.

MINEmmmmml

"
1)



RED/GRN
19I)6
VENTSOXI
9



GRN}
/BRN
-
~



GRN



GRN
20
1
)10
I
)
11
RIGHTWATERVALVEI
12
YEL/SRN
I
BATTERY

G202
T

INTERIORLIGHTS
SYSTEM

HOTAT
HOTAT
HOTINRUN
HOTATHOTINACCY
HOT-
HOTAT
ALLTIMES



ALL
TIMES



ORSTART



_
ALLTIMES



RUNOR
START



ALLTIMES



ALLTIMES
AUXI
FTFUSE



FUSE



USE



FUSE



USE



FUSE
,r
FUSE
,LIARY
31PUSE
20



23



39



16



41



,



,



46



,BOX
L
3
-"---



="---



--



-_
'
.SA
---



S--_



3-
-
_
j
L



4
-J
FRONT
20



1Bx
12y"



Y
I
---
I
++



1
x



2



2x(1995)



22
POWER
DISTRI-

¢I



rtBUTTONO
BOX

=ERICLESPEE=I
1
2
IL
j
K/WHT



BLK/WHT
1

INSTRUMENT
CLUSTER
316325

I



1
85



6~



5



LK/GRY
I



I
)68
64
VIO/GRN
I



I
)48
48
BLK/BLU
,



17447BBLK
-
"
I
-__I
ENGINECONTROL
MODULE
(DINE)
BLK/8LU

TRANSMISSION
CONTROLSSYSTEM

r----------
B
I



FUNCTION
LIGHT-RECIRC
,
I)1



RN/RED
\2
'
FUNCTION
LIGH-REAR
DEFOG
IG



B
FUNCTION
LIGHT
-A/C,
4
BFNIYELL
REARDEFOGSW,
5W
T
~~
E
.
~
I



AIR
CIRCULATION
SWI
B
W~
I



A/CSWITCHI
77
WHTIBLU
II



GROUND,
9
BFN
I



GROUND,
10
G~
RYIBLK
I



GROUND,
11
BRN/ORG
I
-F



1
12
BR
A
N/BLU
OUN
D



j
I



VOLTAGE
FORM
IXACTI
13
YEL/GRN
.
I



10LTAGEFORFUNCLIGHTSI
14
G~
II
ILLUMIIAAT10N111-25-12
LK



-
INTERIOR
16



LIGHTS
)

7449
3

CKP/RPMSIGNALI
j18
ELK
VEHICLESPEED,
j19
BLK/WHT
INDEPENDENT
VENTILATION,



20
BLKEL
MIXACTUATORI
21
BRN/RED
EVAPTEMPI
j22
GRY
OUTSIDETEMPI
23
BL
HEATERTEMP-LEFTI
j?4
YEL/RED
HEATER
TEMP-RIGHTI
j25
YEL/8LU
I
)
26A

G203

SYSTEM

l



BL
K/G
~RN
STARTER
SIGNAL
I
~---



STARTING
SYSTEM
GENERATORS]
GNALI
2



BL
.



b



HARG(NG
SYSTEM

I'
4
GRNIYELGRN/BLU
IGN
ITION,



~
LEFTWATERVALVE,
5
YEL/VIO

I)
6

7
I
,B
PARK/HEAT
VENT
SIG,
99
GRSRNAn
W0
I,11
RIGHTWATERVALVEI
12
YEL/BRN
I)13
BATTERY
I



14Y



RED/YEL
BATTERY
REDJYEL
GROUND,
1~
6=RN
17B
GROUND,
ECM!
VIOIGRY
~19

I)
2
NOMINALTEMPVALVE-RIGHT,
21
Yj



EL/WHT
NO
MINALTEMPVALVE-LEFT,
22
YEL/BLU
NOMINAL
AIR
FLOW
VALVEI
23~
YEL/=LLK
INTERIOR
TEMP
SENSORI
T24
YEL
~
I



,
)
25



I
I



GROUND,
26
BAN
L----------
Ja
INTEGRATED
CLIMATE
REGULATION
CONTROL
MODULE

IN

a

Air
Conditioning
&
Heating

1993-95
Except
318ti
(1
of
2)

CONTROLPANEL

ELECTRICAL
WIRING
DIAGRAMS
ELE-131

EXCEPT
119953181
19953181
BLKI
Nil



I
WHTIYEL

WATER
VALVE
ASSEMBLY

ELK/
I
RED
15,I



I
,
VARIABLE
CAMSHAFT
CONTROLMODULE

G203INTERIORLIGHTS
SYSTEM

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