1997 BMW 318i Temperature switch

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

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



r



_
FU
_
SE



FUSE



FUSE



FUSE



FUSE



-
FRONT
POWER
I



S
WITCH



l
Box
I



I



I
20



23



18



39



41
BOXOFF



START



L
--_-
--5A-__
1
.5
=_--_
3
-_J
I



II



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=
----



SA----~7
.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)

ELE-166
ELECTRICAL
WIRING
DIAGRAMS

"
-

N15
WH7/VA



I
COLIESSSVSTEM
20
WHT/VIO

DATALINK



WHT/GRN
CONNECTOR



WHT/YEL
1

WHT/VIO
REDIVEL
FF"
2
REDIVELREDIVEL

17
BRNIYEL

170
I
TAC-I~
RADIO
DRIVER'SSEAT
BELT
SWITCH

BLUI



I
_



I1
BRN
VIO/YEL
2



I
-
18

19
BRN/GFY/YEL
20
BLU/VIOIWHT
21
BRN/RED

YEL

8299
2

YEL

LEFTFRONT
BRAKEPAD
SENSOR

RIGHT
EAR
BRAKEPAD
SENSOR
HOTINRUNANDSTART



HOTINACCY,PUNANDSTART



HOTINACCY,RUNANDSTART

r
F23
E___



USE
__________-IFFUSE
USE
IDSOTRIBUTIONBOX

BLK/WHT

BRN



"BAN



,I
G312

BRNIVIO

ENGINECOOLANT
TEMPERATURESENSOR

InstrumentPanel

1992-97
Except
318ti
(2
of
2)

5A_____-TISA
____________
.T7
.5AJ
B



32



30Y
GRN/



viol
I



viol
BLU
I



YEL



WHT

WHT/VEL
WHT/VIO
BRNIRED

EXCEPT
1992
&
1993



OIL7EMPESENSOR

7
YEL



(CANADA61997)

.
BRNIGRVIYEL

e
GRNIBLU
9
BLKIWHT



DRIVERS
DOOR
0



JAMB
1994
SWITCH
1
BIN/ILK



(19926
1
993
BLK/RED



2
DOOR,
6

VIOI



WICCM



CONVERT
BR
WHTIGRN



YE'
I



3



N/GRY
~

(EX
1992
6
7993
200

V"'

0R
6
VIO/YEL



I
BRAKELIGHT
.
1990
CONVERTIBLE)
BRNIYEL



SWITCH
BRN/VIO



I



I



8RN/GRV
BLUIBRN/VEL



-
----+-j
W/CCM

.LU/



COMPUTER
REDI



BRN1
~



TEMPSENSOR

MMONE

-
.

INNER

BRNIYEL
I----



I



I--
-



-----
--
W/_I



I



I
CC
M

CHECK
CONTROLMODULE



ON-BOARD
DISPLAYICOMPUTER

BRN

G203

BRNIYEL

FUELTANKI
SENSOR"

FUELLEVEL
SENSORI

8RN/BLK
BRN/BLK
VEHICLE
SPEEDSENSOR

BF
RED
an
RED
YEL

GRN/BLU
9
I
WIT/

WHT/RED
11-I



I
BRNI
.P
Y12
I



I
BLK/WHT
13
I
VIO/WHT
10
I
BLU/VIO/WHT
75
I
GRV/RED
18`
I



I
BRN
17
~I
PEDIYEL
18
I



I

MULTI
FUNCTION
CLOCK

WHTwHTRG1
-
I
WHT/BLU
3
I



II



I
BLKIRED
2
{
I



I
REOIVE
L4
I



I

CHIMEMODULE

HK
ENGINE



W



STEM
IN.



2
GRV/RED
S(
)



INTERIOR
LIGHT
ICNDEC



S
SYSTEM
~3
-
BLU/BRN
EXTERIOR
LIGHTS
SYSTEM
A14
4
BLU/GRN
j~
EXTERIOR
LIGHTS
SYSTEM
5
GRVIBRN
~~
TRANSMISSION
SYSTEM
67

INSTRUMENT
CLUSTER

10462
8

ELECTRICAL
WIRING
DIAGRAMS
ELE-167

Instrument
Panel

1998
Except
318ti
(1
of2)

11
WHT/VEL
12
WHT/VIO
13
BRN/RED
14
BLUIBLK
I
SUPPLEMENTAL
1



RESTRAINTS
SYSTEM
ifi
GRV
17
BRN/GR
18
BRNIVIO
19
YEL

HOTAT



HOTINRUN
HOTINACC,
HOTINRUN
ALLTIMEE



ANDSTART



RUNAND
START



ANDSTART
IGNITION



r



FUSE



FUSE



FUSE
1
FRONTPOWER
SWITCH



I
DISTRIBUTION
BOX
I



I



I
~
F27



~F46



~
F23
I
LOCK



_START
I



L



SA
----



15A
---
EA
-
J
I
ACC
*
RUN
I
1



1
.'f



32Y



BY
L------IJ



GRNII



viol
I



GRNII
VEL
I



BILL
I

ENGINE
CONTROLS
SYSTEM

GRN

DATA
LINK
CONNECTOR15Y
20Y
7Y
j
G
I
QI

viol



GF
.1
VEL



BILL

1



VIO
GRNI



I



I
I



I



I

BLU/
BFN
BRN/
VID/VEL
I



I



I'D

ENGINE



DRIVER'S



BRAKE
FLUID
COOLANT
~~
I
SEAT
I



LEVELSWITCH
TEMPERATURE
I



]BELT
Ij
SJSWITCH
I

BLUR



BRNI
DR
.
BILL//



1
ORGI



SPIN

BRNIRED

BRN/GRN

YEL

RED/VEL

2

10
WHT/GRV
89-



l11



GRV



0
BODY
COMPUTER
SYSTEMSVSTEM
J



-
I
ANTI-LOCK
BRAKESSYSTEM
12



BLU/BPN



ANTI-
LOCK
BRAKESSYSTEM
13
GRNIREO
1~ENGINE
CONTROLS
SYSTEM
14
BLU/VIO/VEL
15
WHTIGRN



GRNIBLU
71
16
VIO/VEL
I
812



17
BRN/VEL
18
BRN/VIO
B73



19
BRN/GRN
20
B14



21
GRV/BLK/VELANTI-LOCK
22
BLD
i
IBLK
BRAKESSVSTEM
B16



23
BRN/GRV/VEL



BRNIGRY/VEL
B
24
BLU/VIO/WHT



BLUIVIOIWH7
9

ELE-168
ELECTRICAL
WIRING
DIAGRAMS

5
6
7
0
10

10462
9

GRN/BLU

BRN/YEL
BRN/BLK
BRN/RED
DRIVERS
DOOR
JAMB
SWITCHBAN
t
YEL
SAW
ELI
YEL

Instrument
Panel

1998
Except
318ti
(2
of
2)

OIL
TEMPERATUR
PARK
LEFTFRONTRIGHTREAR
SENSOR



BRAKE



BRAKEPAD



BRAKEPAD



CHECK
CONTROL
SWITCH
SENSOR
SENSOR



MODULE

I

SREDI
BFI
GRNI
NCAI
YELIYELI
YELI
BR
.:

1



I



3I3I
3GROUND
I



BANI



III



III



I



BLK/WHT

CONVERTIBLETOP
BRN/RED



CONTROLMODULE
I

T



BLK/WHT
1
I



I
BRN/GRN



II
I



HIPI
AMPLIFIER

L



I



;



BLK/WHT
5
i_--I

REDIYEL
q



WIPERIWASHERMODULE
II



-_
BLK/WHT
10I
I



I--I
CRUISE
CONTROLMODULE
I

BLKIWHT



SLK/WHT
10
I



I

PINS
USED
W/

BRN/GRN
11
BLU/RED
22
BLK/RED



WHT/SLU
33
WHT/GRN
44
WHT/GRY
55
BLU/BRN/YEL
667
STARTING/



BLK/GRN
BB
CHARGINGSYSTEM
GRN/BLU
9
WHT/BLU
10
WHTIRED
11
BRN/GRY
12
BLK/WHT
13
V
11
/WHT
1414
BLU/VIOIWHT
1515
EXTERIOR
LIGHTS



GRY/RED



1616

H

BRN/GRY/YEL
SYSTEM



RAN
1717
BLU/VIO/WHT



RED/YEL
1515

BLUIBRN/YEL
MULTI-FUNCTION
CLOCK

ON-BOARD
DISPLAY

EXTERIOR
LIGHTS
SYSTEM

BRN/
DAY
/
YEL

GVEL



BRN/GRY

BRN/
POWER
GRY/I
WINDOWS
YEL



SYSTEM



mI
3I
3
:1

R.
t

HOT
AT



HOT
IN
ACC,
ALLTIMES



RUNAND
START
FUSE



y
FUSE
FRONTPOWER
F45



I
DISTRIBUTION
11,

5=____~-5_J
30Y
REDII



V101
I
YELI
WHTI

vIOf
WHT

ON-BOARD
COMPUTERMODULE



TEMPERATURE

BRN

"



1



I
VEHICLE
FUELLEVEL
FUELTANK
I



"
I



1
BAN/
SPEEDSENSOR



SENSOR



SENSORII



BAN
I



SANI



BAN
I



GAS
I
1
1



1



1
G312



G202



G203



G203

I

AUTOMATIC
CLIMATE
CONTROL
MODULE

BLKLKIW



J
T



13



1



I

RADIO

BRN/ORG

ELE-170
ELECTRICAL
WIRING
DIAGRAMS

15~HT/YEL
20
Y
WHT/VIO

DATA
LINK
CONNECTOR

i6

S
YEL

7
GRN/BLU
S
BLK/WHT
S
BRNIBLK
10
ELK/RED

11
WHT/GRN
12
VIO/YEL
13
BRN/YEL
1C
BRN/VIO

1S
BRN/YEL

I



1110
BLK/WHT

YEL

63365

RED/YELRED/YEL
RED/YEL
WHT/YELWHT/VIO

I
TAC=I
CRUISECONTROL
MODULE
1997
ONLY
BRN/GRY/YEL
4
H

BRNIRED



INTERIORLIGHTS
SYSTEM

YEL

LEFTFRONT
BRAKEPAD
SENSOR

RIGHT
REAR
BRAKEPAD
SENSOR

BRN



"
BRN



,~
G312

BRN/VIO

ENGINE
OOLANT
TEMPERATURE
SENSOR

BRNIYEL

HOT
IN
RUNAND
START



HOTINACCY,RUNANDSTARTr



-
---
FRONTPOWER
FUSE



FUSE



DISTRIBUTIONBOX
)
F23



/F<6
6



32GRN(



VIO/~
Btu



YEL

DOMPUTER
DATA
I



YEL
LINES
SYSTEM

WHT/YEL

"



FUELTANK
SENSORII

InstrumentPanel

1995-97
318ti
(2
of
2)

BR
4

EXCEPT
1997

GRY/REDGRY/RED

ENGINECONTROLS
~IHTW
/BLK
SYSTEM
WHT/YEL
''
coMPUTERDATA
T/VIO
LINESSYSTEM~
WH-

BRN/
RED
COMBINATION
r
-
-
(SWITCH

BLK/WHT
WIPER/WASHERSYSTEM

BLK
K/=HT
ENGINE
CONTROLSSYSTEM

BOARDCOMPUTER

G203

BRNIYEL(ORGRYIYEL)

BRN/GRY/YEL

C
DRIVERS

S
W
ITCH

FUELLEVEL
SENSOR

BRN/RED

G312
.Ip
BRN
"



BRN

RED/YEL
3
,a
BLK/R
IV
BRN



.



BN



1
{
G202
CHIME
MODULE
(1997)

REDIYEL
5B,
VIO/YE
-
L
i4
BRNIOR
6
3~
GRY/RED
11
2,

BANIGFY

ON-BOARD
COMPUTER
TEMPSENSOR

BRNIORG

11
~u
DIGITAL
CLOCK

N
A
IDBS
H
FUEL
B12



CONSUMPTIONMETER

ASC
.T
IND

10458
0

SRS
IND

INSTRUMENT
CLUSTER

I



OF
.,1



WHT



GRN



VIO/
r
I
BLU
YEL
2
GRHEADLIGHTSSYSTEM
INTERIOR
LIGHTS
SYSTEM
SS
BLUIBRN
EXTERIORLIGHTSSYSTEM
~I
9



BLU/GRN



,
EXTERIORLIGHTS
SYSTEM

,SUPPLEMENTAL
15



RESTRAINTS
SYSTEM
16
GRV
~~
ENGINE
CONTROLS
SVSTEM
17
BRN/GRN
18
BRN/VIO
19
YEL
20
BILK
ENGINE
CONTROLS
SYSTEM
21
12
BLU/BRN
~--*
gNTI-LOCK
BRAKESSYSTEM
13
GRNIRED
ENGINECONTROLS
SYSTEM
10



BLU/VIO/V
EL
15~HT/GRN

17
1



B
RNI
El
}
~WEL
18~
BN/VIO
19
FNIGR
N2021



GRV/BLK/YEL
~
ANTI-LOCKBRAKES
22
BLU/BLK



SYSTEM

Instrument
Panel
1998
318ti
(1
of
2)

ELECTRICAL
WIRING
DIAGRAMS
ELE-171

HOTAT



HOTINRUN
HOTINRUN
HOTINACC,
ALLTIMES



ANDSTARTANDSTART
RUNANDSTART
r
---



,
IGNITION



r



FUSE



USE



USE
1
FRONTPOWER
SWITCH



F27



F23



F4B



DISTRIBUTION
BOX
~
I
LOCK/



START
I



L



=A
----



5=
----



15=
J
I
ACC
*
8U"



By



212Y
L------



j



ORN/



GFN/
I



VI01
I
1



VIO



BLU
I



YEL'
DATA
LINK
CONNECTOR
7
Y
"=W=
TIGR
_J

BV
O
/I



B
YEL
I



VIOBYEL
I



I



B
V10

I
`
s
jSWITCH
I
L
1
,

BRNI



GRNI

BRN



BRN

BRN/YEL
BRNIBLK
BRN/RED

ENGINE



DRIVER'S



BRAKEFLUID
COOLANT
1~
I
SEAT
I



LEVELSWITCH
TEMPERATURE
I



(BELT

78
10