1997 BMW 318i BLOWER

ELE-134
ELECTRICAL
WIRING
DIAGRAMS

HOTATALLTIMES
r



,IGNITION
I



ISWITCH
I
OFF/
START
I
ACC
RUN
I
LJ
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VENTILATION
ERRELAY



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11
B12
GRN/BBN

Ian
BLUIRED
BRN

FINALSTAGEUNIT

AUTOMATIC
CLIMATE
CONTROLMODULE

7Y
O
2
GRNI



FED/
II



GRNI

6
GRN/BRN(ORFEDIGRN)

M
NCA
1
BRN/=EL

BLOWERMOTOR

I
~
FUSE20
FUSE31
SE=35E1
BOX
IE40
I
3OAA
730A



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L`Y
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T
I
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FLU
2
DRY
3
VEL/RED
6
VEL/BLU
5



BLK/WHT



BLK/GRN
B6BILK



BLK/BRN

HIGH

7
GRY/RED



INTERIOR
(ORBLK/GRY)
58
BLK/WHT/YEL



LIGHTSSYSTFM
CVL
,
4-CYL
9



BLK/GRN



STARTING



GRNIVIO
4
-
6

I

-
10
VIO/GRY



CHARGINGSVSTEM



¢I
BLU/BLK
BRN/VEL



DEFOGGERl
POWERANTENNA
VEL/BRN



SYSTEMS
14
WHT
15
BLU
16
GRY
17
YEL
18
VEL/VIO

N
i

19
BLU/RED
20
GRN/BRN
21
BRN
22
BRN/ORG
23
BRN
24
GRN/VEL
II
25
RED/VEL
26
WHT/VIO

1
RED
2BRN3
YEL

IF
~Y
J
EQUIPPED
PARKVENTILATION
VEL



CIRCUIT

Air
Conditioning
&
Heating

1998
Except
318ti

HOTATALLHOTATALL
HOTINRUNHOTATALLHOTINRUN
HOTATALL



HOTATALL
=M~S
TIMES
-=Tf~R-
TES
6S=ART
TyMES



TIMES
gUXILIARVFUSE
BOX
(DISTRIBUTION

RECIRCULATION



REARRECIRCULATION



REGULATION
FLAP



DEFROSTER
FLAP
FLAPMOTOR
FLA
'MOTOR
MOTOR



MOTOR
101446

AIR
CONDITIONING
COMPRESSOR

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R
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M
BL}

COMPRESSORCONTROLRELAY
AUXILIARY



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FANMOTOR



I
LU



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I
I6-CVL
14-CVL
(6-CVL)
BLK/BLU



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N/VIO



8
-
G10~
RN
~



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4
4-CVL

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BLK/



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6



I
GRN/RED
5
BLU
2
~~

m
~~m

AUXILIARYFAN
MOTOR
(4-CYL)

mIU

GRN/VIO
4

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6



I

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2
6-CYL

BEEN

u
uuu
LEFT
HEAT



SIGH
T
HEAT



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EVAPORATOREXCHANGEREXCHANGERTEMPSENSORTEMPSENSOR
TEMPSENSOR
TEMPSENSOR

LIVIDit
NCA
~III
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)
~LEFT
I



lII
VALVE

FIGHT
IjIIVALVE
CA
WATER
VALVE
EL
BR

ASSEMBLY

BLK/BLU

(NOT
USED)
9(

BLKIBLU
2
IJ
NORMALSPGED
RELAY
BLU/
BLK

(6
CYL)
SPEEDRELAY

4-CVL

BLK



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~
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{
I



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BLK/BLU
36
74
I



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69
19,
I
BLKIBRN(OR
BLK/GRY)
11
16`
i



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REDIWHT
57
i
l



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-
-
-
--
-
-------
-
--
-
-
1FRONTPOWER
I
T
-
-
~

GRVIVIO
68
4
II
TRANSMIS
FRESH
AIR
FLAP
MOTOR



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SYSTEM
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I



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II



II

BLOWER
RELAY

77720

b
GFN/=RN
6
GF
OFF



N/RED
1



,~7
BL~K
2
11
GEN
3



2
BLU
4



3
G~RN/BRN

BLOWERBWITCH

OFF

CLIMATE
OFF

HOTAT



HOTINRUN



HOTINRUN



HOTAT



HOT
AT
HOTATALLTIMEB--



ALLTIMES



OR
START



ORSTART



ALL
TIMES



ALLTIMES

.1
19
VIOIGRY

GRN/YEL

8
RED/YEL

Air
Conditioning
&
Heating

1995
318ti

GRYIRED
INTERIOR
LIGHTS
SYSTEM

ELECTRICAL
WIRING
DIAGRAMS
ELE-135
AIRCONDITIONING
COMPRESSOR

REDIGRN
B
BLU
2
REDIGRN
B

GRNIBLU

BLKIGRY



j
(NOTUBE
D)
D)
HIGH
SPEEO
RELAY

NORMAL
SPEED
RELAY

1)ABOVE99
DEGC



AUXILIARY
2)ABOVE
91



FAN
MOTORDEGC



I
BLK

2
BEN
1

BLK/GRN
2

TEMPERATURE
SWITCH

ELE-136
ELECTRICAL
WIRING
DIAGRAMS

BLOWER
RELAY

BLOWERMOTOR

87839

BLOWER
RESISTORS

8
GRN

)I



FN



"
BRNN
al'G202

BB
GL
N/SRN

2
GR
./BEN

HOTAT
HOTINRUNHOTINRUNHOTATHOTATH-
-
OTATALLTIMES__



ALL-TIES



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_



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7
START
_



ALLTIMES__
AL_LTIMES
_
r



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'I
IGNITION
r



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I
USE


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7



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START
I



1



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.
5A



---



9A



--



19
6A



-



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I
G201

Air
Conditioning
&
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1996
318ti

l

AIR
CONDITIONING
COMPRESSOR

I
BLK
/C
RED/WHT
57
\I



I
BLK/
GRY68
I
BLK/GRY
85
I



I
VIO/GRY
89
iI



I
"
BLK/6LU
36



I
II
I
ENGINE
CONTROL
MODULE

87847

BLOWER
RELAY

6
GRN/BRN

.1
)2
GRNIBRN

B
CONTROL
SWITCH
GRY/RED

4
BRN



"BRN
+G202

RECIRC

RRDEFOG

INTEGRATEDHEATINGANDCLIMATECONTROL
MODULE

HOTAT



HOTINRUN



HOT
IN
RUN



HOTAT



HOT
AT
HOTATALLTIMES_



ALLTIMES



OR
START
_
__



_



ORSTART



ALLTIMES



ALLTIMES
r



71GNIT'ON



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_
FU
_
SE



FUSE



FUSE



FUSE



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-
FRONT
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I



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WITCH



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Box
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I



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20



23



18



39



41
BOXOFF



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--_-
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1
.5
=_--_
3
-_J
I



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ACC
"



RUN



I

RED/YEL

EVAPORATOR
TEMPERATURE
SENSOR

Air
Conditioning
&
Heating

1997
318ti

BR=
'I
G201

,10
GRY/YEL

1
BRN

2
BRN
CLIMATE
CONTROL
S
WITCH
ILLUMINATION

ELECTRICAL
WIRING
DIAGRAMS
ELE-137

GRY/RED

DEFOGGER
SYSTEM

SOLID
S7A7E

WATER
FRESHAIR
TEMPERATURE
VALVE
COMPRESSORCONTROL
RECIRCULATIONMOTOR
WHEELSWITCH



RELAY



COMPRESSOR

BLU/BLK

BLKIGR

AIRCONDITIONING

BLKIBLU

_BLU
BRN

NORMALSPEEDRELAY

HIGH
SPEEDRELAY

1IABOVE88
DEGC



AUXILIARY
2)ABOVE80



FAN
MOTOR
DEG
C
BLK/GRN
3

+
.=N

1
L
----
'
+100



ABOVE
BLK
-
GRY


24



18BAR

BELOW
21
BAR

TEMPERATURE
SWITC

BELOW
15
BAR
ABOVE
2
.6
BAR
BELOW
ABOVE
1
.5
30BAR
BAR
PRESSURE
S
W
ITCH

BLK/
REDI
II
BB-K/
-
GRN
GRY
1



I
BlK/G
RV



85



I



I
VIO/G
RV



69



I



I
"
-LK/BLU
36,
I



I
L__I
ENGINE
CONTROL
MODULE

TRANSMISSION
CONTROL
MODULE

ELE-138
ELECTRICAL
WIRING
DIAGRAMS

BLOWER
RELAY

O

4
BI=
"-P-
"
-
+
G202

6G
.W
.R
.I
22
GRNIBR~

4
Gr
RNIBRN
B



G
RNIRED
1



7
BL
~
11
DR
.8
22
BLU
2

1
S
G
}
RNIGRV

BLOWERSWITCH

101298

N

BLO
WER
RESISTORS

1
NCA
ii
GRN/GRV

INTEGRATED
HEATING
&CLIMATE
CONTROLMODULE

HOTAT
HOTINRUNHOTINRUNHOTAT



HOTAT
HOTATALLTIMES
ALLTIMES
&START
__
____



_&START
ALLTIMES



ALLTIMES
r



_
_
_
---



,
IGNITION
I
FUSE



FUSE



FUSE



FUS~
FRONT
POWER



r
PUSS
-(AUXILIARY
I



(SWITCH
I



DISTRIBUTION



FUSEBOX
20



23



16



39
(
BOX



I
48
I
OFf
~



START
i



=0=
--
8=
----



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.6A-I



L
~0=
-
J

I
ACC
"
RUN
I
m
I

RROElGG
1
BRN

INKS
CONTROL
SWITCH
1
GRV/RED

2
BRN
CLIMATE
CONTROL
SWITCH
ILLUMINATION
I



BRN
,
1
GRN/RED
I
2



B2



RN
3
VIO/GRN

,5
BLU/BLK
DRY

Air
Conditioning
&
Heating

1998
318ti

t7
>I



ml
¢>

EVAPORATOR
TEMPERATURE
SENSOR



FRESHAIR
RECIRCULATIONMOTOR
TEMPERATUREWHEELSWITCH

mI

G10D

WATER
VALVE
.CA]
COMPRESSRCONTROL
RELAY



j

BLK/GRY

BLKIBLU
211
NCA

NORMAL
SPEEDRELAY

HIGH
SPEEDRELAV

1)ABOVE88
AUXILIARY
DEGC
FAN
MOTOR
2)
ABOVE
6o
DEGC
BLKIGRN
3

RN
2
BLK/GRV
1~

DOUBLE
TEMPERATURE
SWITCH

I
BLKIG
RED/I
-
WNT
57
I



I
BLKI
GR~V~~I
I
BLK/



BLKIIGR=11
~I



I
VIO/GRV
fig
I



I
"



BLKIBLU
GB
I
I



I
L_
_I
ENGINECONTROL
No
DULE(DME)

OOm¢m
I
BLKIBLU
IS
%
l
.
6
~S
6
/S
2
.h



~
CONDITIONING
COMPRESSOR--
TRANSMISSION
.



CONTROLMODULE
(EGS)

UNCOUPLING
DIODE

18
BLK/WHT/YEL

I



119
BLU/RED

I



~



120
GRNJBRN

121
BRN

I



123BRN

I



I}

AUTOMATIC
CLIMATE
CONTROLMODULE

HOTATALL_TI_ME_S



HOTATALLT_IM_ES
r-
-



-(
IGNITION



I
-



FRONT
POWER
(
SWITCH



I



~



DISTRIBUTION
BOX
'+FUSE20
I
30A
I
(OFF
START(

I
ACCRUN
I
L---
-_J

GRN1

7

GRNT

1
B

2



G
}
RNIBRN

®



33
BL

GRN/YEL

BRN

I
-IL
G201

ELECTRICAL
WIRING
DIAGRAMS
ELE-139

Park
Ventilation

1998

RED/GRN
(OR
I
GRN/BRN)

---I
20Y
X10016

I

BRN

1

BRN
I



BLOWER
RELAY

-9-
G202

RED/GRN
2

GRN
6

BRN
I



II



RED/GRN
8
,

FINALSTAGE
UNIT

1



"



BLK/WHT/YEL
4

BRN(

1



PARKVENTILATION
-



RELAY
GRN/
G201
NCA
,1
YEL

101447

BLK/WHT/YEL
14
r
BRN/



(VENT
I
NCA



1
YEL



L--
-
J
ON-BOARD
COMPUTER
BLOWER
MOTOR

Rear
Window
Defogger

I
BLK
-
~E
NCA
-
~
E
NCA

"CA
,I
WHT

12
WHT
L
-1
HIFI
AMPLIFIER
(W/
TEN
SPEAKER
SYSTEM
ONLY)
64018

AUTOMATIC
CLIMATE
CONTROLMODULE
12
BLUIBL
I-_-I

I,
4



BRN/WHT
I
THERMOSTAT

ANTENNA
AMPLIFIER

NCA
I
i
N~-
I
N
CA
I
I



-
I



N~



CA
DIVERSITY
(W/3
ANTENNA
DIVERSITY)

88620

ELECTRICAL
WIRING
DIAGRAMS
ELE-161

HOTINRUNANDSTART
HOTATALLTIMES
~c



FRONT
POWER
r'
F23
E



F6
SE
DISTRIBUTION
BOX
L15A____---
20A
1
6'(



I
N
GRNIBLU
l



RED/BR
4~



6
REAR
DEFOGGER
RELAY

2Y
BLKI



BLK
26
I



20



BLU/BLK



8L



~



--
I
_
-
I



REAR
WINDOW
BODYELECTRONICS
INTEGRATED
CILMATE



BLOW
ER
RELAY



CCNTROLMODULE
REGULATION
CONTROLMODU
LE



(ZKE
IV)

REAR
WINDOW
BLOWER
MICRO
SWITCH
BRN

BRN
SRN
SPIN
G314

RED/BLK



NCA

REAR
N
A
WINDOW
BLOWER

INCA

NC
NCANCANCANCA
G314
+
BRN
"
.
NCA



REARDEFOGGER/
(2
DOOR)



ANTENNA
G313
ANTENNA
AMPLIFIER



I



I



NCA



I
(4DOOR)



INCA
il
NCA



INCA
~I



I
NCA



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.I



_
16



WH
O
T
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DIVERSITY
RADIO

HOT
IN
RUNAND
START



HOTATALLTIMES
r



FUSE



FUSE
FRONTPOWER
F23



F6



I
DISTRIBUTION
BOX
LlL______-
2
OA
J
6T
12T
GRN/BLU-
REDIBRN~
4,~
6
REAR
DEFOGGER
RELAY
INTERGRATED
8



2CLI
MATE
REGULATION



ILK
BLUIBLK
"
BL



I
HEATING



_
CONTROL



BODY
ELECTRONICS
CONTOLMODULE

7
BLK



1
NCA



(W/3
ANTENNA
DIVERSITY)



NCA
N
CA



NCANCA



NCANCA



NCA
I
WHT



NCANCA



NCA

1
~
NCA



SIRNI
I
NCA



SUPPRESSION
I,
16
WHT



G314



FILTER

RADIO



(2
DOOR)
F
-
12
I
WHIT



G313

I
--I'
HIFI
AMPLIFIER
(4
DOOR)

NCA
BRN
I

SUPPRESSION
FILTER

(W/3ANTENNA
DIVERSITY)

REAR
DEFOGGER/
ANTENNA

1994-96

Convertible

1997

Except
318ti

ELE-164
ELECTRICAL
WIRING
-DIAGRAMS

RADIO

104784

NCA
_
NCA
_NCA
NOA

DIVERSITY
(W/
3
ANTENNA
DIVERSITY)

I
-
I
NCA
I
I~
ucA
I



I
~
NCA
I



I
,s
wHT

I



I
~
2



VI
O/YEL
x]31266
HIFIAMPLIFIER

.
.TIN
.UN



HOTAT



HOTINRUN
.
ANDSTART
ALLTIMES



ACCYANOSTART
FUSE



FUSE



FUSE



,FRONT
POWER
I



F23



F6



F43



I
DISTRIBUTION
BOX

L
'=______-
_D-____________
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e
x>--
-z



12
x366)-a



2s
xi6niB
GRN/~



RED/



GRN/1
BLU



BRN



WT

GRN/
I



GRN/
BLU



WHT
4

_



REARDEFOGGER
RELAY

Rear
Window
Defogger

1998
Convertible

RED/
BLK

BRN
ELKI



GRN/I
WHY
BRN

1
6312

r

REARDEFOGGERI
ANTENNA
REARWINDOW



SPATIAL
LOWER
RELAY



SoU
NO
RELAY

R
B-I
BYELI



YIELI
Jf
ED[



ANI



BREL

3121
NDOW



f~



lI



/



IREARWINDOW
BLOWER



BLOWER
MICROSWITCH

BRNI



BRN
BRNI

GRNIBLK
8

NCANCA

SUPPRESSION
FILTER

.
.N/I
GRN/I



CONVERTIBLE
YEL
BILK



TOPCONTROL
MODULE