1993 BMW M3 Workshop Manual

ELE-134
ELECTRICAL
WIRING
DIAGRAMS

HOTATALLTIMES
r



,IGNITION
I



ISWITCH
I
OFF/
START
I
ACC
RUN
I
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VENTILATION
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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



140A
L`Y
.---
----
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---
-
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GRN/SRN
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(OR
RED
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1
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



B
FANMOTOR



I
LU



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



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N/VIO



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-
G10~
RN
~



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4
4-CVL

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BLK/



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6



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GRN/RED
5
BLU
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~~

m
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AUXILIARYFAN
MOTOR
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mIU

GRN/VIO
4

RED/GRY
6



I

BLK/RED/VEL
2
6-CYL

BEEN

u
uuu
LEFT
HEAT



SIGH
T
HEAT



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EVAPORATOREXCHANGEREXCHANGERTEMPSENSORTEMPSENSOR
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TEMPSENSOR

LIVIDit
NCA
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I



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VALVE

FIGHT
IjIIVALVE
CA
WATER
VALVE
EL
BR

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BLK/BLU

(NOT
USED)
9(

BLKIBLU
2
IJ
NORMALSPGED
RELAY
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BLK

(6
CYL)
SPEEDRELAY

4-CVL

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BLK/BLU
36
74
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VIO/GRY
69
19,
I
BLKIBRN(OR
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11
16`
i



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REDIWHT
57
i
l



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-
-
-
--
-
-------
-
--
-
-
1FRONTPOWER
I
T
-
-
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GRVIVIO
68
4
II
TRANSMIS
FRESH
AIR
FLAP
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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
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r



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'I
IGNITION
r



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I
USE


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7



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START
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.
5A



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9A



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6A



-



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I



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GRNIBRN



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a
I
G201

Air
Conditioning
&
Heating

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



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FU
_
SE



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FRONT
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I



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I



I
20



23



18



39



41
BOXOFF



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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



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FUS~
FRONT
POWER



r
PUSS
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I



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I



DISTRIBUTION



FUSEBOX
20



23



16



39
(
BOX



I
48
I
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~



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i



=0=
--
8=
----



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~0=
-
J

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ACC
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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



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L_
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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



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AUTOMATIC
CLIMATE
CONTROLMODULE

HOTATALL_TI_ME_S



HOTATALLT_IM_ES
r-
-



-(
IGNITION



I
-



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POWER
(
SWITCH



I



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DISTRIBUTION
BOX
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I
30A
I
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ACCRUN
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B

2



G
}
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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

ELE-140
ELECTRICAL
WIRING
DIAGRAMS
Airbag
(Supplemental
Restraint
System)

88996

_HO_T
_AT
ALL
TIMES
IGNITION
SWITCH
!START
START
OFF
NCA



1Ru1~T
-
ACC
_(

7
WHT1110
AI,



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WHT1VI0
20,



22
T%D
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LINK
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WHT
EL
1
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i
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~~
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I
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-
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J
BLU/GRV
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XZ83



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CONTACT
RINGS

WHTIVIO

GKF
12
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3

SUPPLEMENTAL
RESTRAINTSVSTEM
CONTROLMODULE

DRIVER'SSEAT
8900D



BELTSWITCH

NC
20
DATALINK
CONNECTOR
BLU/BL

BLUIG
X782

BLU/VIO/VEL

18RN
BRN
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-#
G203

HOTATALLTIMES
(IGNITION
START



OFFSWITCH
I
I



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I
RUN
ACC
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POWER

V15
IOJ
DISTRIBUTION
XLB
INSTRUMENT
CLUSTER

C

RIGHT
FRONT
IMPACT
SENSOR

DRIVER'S
AIRBAG
GASGENERATOR

PASSENGER'S
AIRBAG
GASGENERATOR

14
~SEATBELT
WARNING
LAMP
XIZICONTROL
INSTRUMENTCLUSTER

LEFT
FRONT
IMPACT
SENSOR
11992-93

Early
Production

1993

Late
Production

ELECTRICAL
WIRING
DIAGRAMS
ELE-141

Airbag
(Supplemental
Restraint
System)

_
HO
_
TA
_
TALL
_
TIMES
I



IGNITION
VIO



VIO



I
START



OFF
!SWITCH
23
__
25
___



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I



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F43
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SYSTEMCONTROL



7.5A



7
5q



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(
MODULE



-----
24Y
26Y



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155
VIO/GRN



INSTRUMENT
R



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gIRBAG
CLUSTER
I
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31E



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=
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;
3



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141
~
BLU/GRYORS
LU/BRN
ABBF-
,

ABF-
1
J
VEL/SRN

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WHT/VIO

PASSENGER'S
SEATBELTSWITCH

NCABRN
NCABLU

CONTACT-GS

G203
(2-DOOR)



SOCCEATPANCY
1
N"
BRN
1



"U
G303
(4-DOOR)



3



2



DETECTOR
G404
(318TI)

WHTIFED
m00
(7

G404
~
G203
(
X
318T1)
(31871)8TI)



1
1994-96
PASSENGER'S
AI
RSAG
GAS
GENERATOR

WHT/VIO
20
DATALINK
CONNECTOR
BLU/VIO/YEL
ORBLU/REO/



BLU/VIO/VEL



-----
I
12
WHT



3



2
ORBLUIPEO/W
HT



14
ISEATBELT



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GKF



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(
WARNINGLAMP
X17
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BRNSRN



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J
INSTRUMENT
G201
G404



CLUSTER
(1994)
(1995-1996)

CA
~~
m01

DRIVER'S
SEATBELTSWITCH
24
BRNIBLK



BRN/BLK
7I



-,CODELECTRONICS
CS



_
-ICONTROLMOOULE
1
995
LATE
PRODUCTIONAND1996