Lexus ES300 (1997 year). Manual - part 674

1

2

3

4

26 E

S

300

(C

o

n

t.

  ne

xt

 pa

ge

)

2

ACC

IG

1

AM

1

4

7A

10

A

5D

5B

4A

6D

4B

7D

8A

3B

10

D

3A

1A

13

A

13

D

12

D

11

D

4D

9C

2

1

1

EA

R

ig

h

t r

a

di

a

tor

s

id

e

 s

u

pp

or

t

EE

R

e

a

r s

ide of

s

u

rg

e t

ank

IJ

In

st

ru

m

ent

 pane

l 

br

ace

 R

H

12

7I

L

1

2I

L

1

3I

F

3

4

IF

3

1

IF

3

6I

J

1

3I

L

1

1

5I

L

1

1A

1F

2

F

1K
2

1B
1

1K
1

1D
2

1J

1

DA

FB

2I

K

2

F 6

A , F11

F

FUSIBLE LINK BLOCK

3D

1

0

C

2B

WASHER LEVEL

OIL

SEAT BELT

ABS

TRAC OFF

CRUISE

O/D OFF

MALFANCTION
INDICATOR LAMP

CHARGE

REAR LIGHT

SLIP

3I

J

1

C 

7

A

, 

C 8

B

, C

 9

C

D

, C

1

0

CO

MBI

N

ATI

O

N

 M

E

TE

R

J28

A , J29

B

JUNCTION
CONNECTOR

V–W

V–W

R–L

W

B–R

B–R

B–R

B–G

R–L

R–L

R–L

R–L

R–L

L

P

Y–R

G–W

B–O

BR

Y–G

BR

P–L

Y–G

Y–B

P–L

W–B

Y–B

R–

L

B–

Y

2

A

D

1

D

C

A

C

C

32

3

L

P

Y–R

G–W

BR

BR

1

9I

J

1

3I

M

2

P–L

WATER TEMP. 

TACHOMETER

FUEL

FUEL

ODO

CPU

SPEEDOMETER

B

A

TTE

RY

FL M

A

IN

3.

 0

W

V 2

V

E

HI

CL

E 

SPE

ED

 S

E

NSOR

( C

o

m

b

inat

ion M

e

te

r)

F1

9

FUE

L

 SEN

DER

J25
JUNCTION
CONNECTOR

J 4

JU

N

C

TI

O

N

CO

NNECTO

R

10A GAUGE

I1

3

IG

N

IT

IO

N

 S

W

J1

7

J

U

NCTI

O

N

CON

N

ECTO

R

Fr

om

 Engi

ne 

C

ont

ro

l 

M

o

d

u

le

<2

–

7

>

Fr

o

m

 A/

C 

Co

n

tr

o

l 

A

s

s

e

m

b

ly

<

27–

5

>

BR

W 3
WATER TEMP.  SENDER

W 1
WASHER LEVEL
WARNING SW

O 1
OIL PRESSURE SW

40A

AM

1

V–

W

V–

W

See Taillight System
< 6–4>

See Charging System
< 1–4>

See Engine Control System
< 2–2>

See Electronically Controlled Transmission
and A/T Indicator System< 3–3>

See Cruise Control System< 21–2>

See ABS and Traction Control
System< 19–1>

See ABS System< 20–2>
See ABS and Traction Control System
< 19–1>

See Unlock and Seat Belt Warning
System< 14–3>

See Charging System
< 1–4>

10

0A

AL

T

6I

L

1

V–

W

C

Fr

om

 C

rui

se C

ont

ro

l E

C

U

<

21–

4

>

IG

+

S

I

S

E

From Engine Control
Module< 2–11>

B–O

Po

w

e

r

S

our

c

e

C

o

mbi

nat

ion M

e

te

r

K OVERALL ELECTRICAL WIRING DIAGRAM

5

6

7

26 E

S

300

(Co

n

t’

d

)

1

16

B

2D

1D

7C

6C

5

C

9A

II

In

st

ru

m

ent

panel

 br

ace

 LH

2

1

3I

G

2

4I

K

1

4I

L

1

1J

8

1J

7

8C

D
83

C

B

11

1

3

B

B

12

1

4

B

C
1

2

C

1

0B

9B

7

B

8B

IG

Lef

t k

ic

k

 panel

9D

W–B

R–

W

(*2

)

R–W

R–W

15

B

R–

W

W–B

W–B

B–Y

B–Y

W–B

W–B

R–W

C 

7

A

, 

C 

8

B

, 

C 

9

C

, C

1

0

D

C

O

M

B

IN

A

T

IO

N

 M

E

T

E

R

(* 1)

B

B

B

B

R–

W

( *2

)

A

A

W–

B

A

2

1

A

W–B

6I

G

1

GR

GR

A

A

P 3
PARKING
BRAKE SW

From Daytime
Running Light
Relay(Main)
< 5–1>

J 2
JUNCTION
CONNECTOR

B 1
BRAKE FLUID LEVEL
WARNING SW

E 6
ENGINE OIL
LEVEL WARNING SW

J 8

J

U

NCTI

O

N

CO

NNE

CTOR

See Interior Light
System< 8–4>

See SRS System
< 23–3>

See Headlight System
< 4–3>< 5–3>

J1

6

J

UNCTI

O

N

CO

NNECT

OR

See Illumination System
< 7–2>

See Interior Light
System< 8–4>

See SRS System
< 23–3>

See Headlight System
< 4–3> <5–3>

See Headlight System
< 4–3>

See Electronically
Controlled
Transmission and A/T
Indicator System
< 3–3>< 3–4>

See Turn Signal and
Hazard Warning Light
System<9–2>< 9–3>

TAIL

HEAD

L

2

D

N

R

P

TURN RH

TURN LH

HIGH BEAM

SRS

DOOR

ENGINE
OIL

DE

L

A

Y

BLBE CHECK
RELAY

BRAKE

From Park/Neutral
Position SW<1–2>

J15

J

UNCTI

O

N

CONN

ECTOR

(* 1)

(*1)

(*2)

To Day

tim

e

R

u

n

n

ing L

ight

Re

la

y

(Ma

in

)<

5–2

>

OIL TEMP. 

OIL LEVEL

See Illumination System
<7–2>

(* 2)

C

o

mbi

nat

ion M

e

te

r

*1: USA

*2: Canada

K

1

2

3

4

27 E

S

300

(C

o

n

t.

  ne

xt

 pa

ge

)

2

ACC

IG

1

AM

1

4

1K
2

40

A

AM

1

1B
1

1V

10

1W
3

2J
7

2

1

3

5

4

1

1

1

1

1

10

A

EC

U–B

2A
1

1E

1F

2F

1A

1

C

1E

B

1

EC

L

e

ft

 r

a

di

at

o

r

si

de suppor

t

M

21

IH

1

5

IH

1

1

EB

2

2

2

1

2I

H

1

II

In

st

ru

m

ent

 pan

el

 b

ra

c

e 

LH

1K
1

2

1

3

5

11

11

10

A

HE

ATER

1R
3

1W
2

2K
5

2C
9

IM

2

7

B

A

1

A

3

B

4

B

C

D

E

G

H

I

J

F

2

L–

B

L–B

L–

R

B

–Y

L–

R

B

–

W

B

–

W

L

–

W

L–W

W–

B

W–

B

W–

B

W–

B

Y–

W

B–

W

W–

B

L–B

W–

B

W–

B

B–

W

L–Y

L–

W

L–B

L–

Y

W–

R

A

L–B

B–

Y

B

L–W

L–R

W–B

L–R

W–R

W–R

W–R

B–R

B–R

B–R

L–B

B–G

B–W

L–W

B–W

B–W

Y–W

W–B

W–B

W–B

L–B

L–B

L–B

L–B

W

W

I1

3

IG

N

IT

IO

N

 S

W

J 3

J

UNCT

IO

N

CON

N

ECTOR

SH

O

R

T

PI

N

HTR

REL

A

Y

FL

 M

A

IN

3.

 0

W

B 2

BLO

W

ER

 M

O

TO

R

B 3
BLOWER RESISTOR

A1

3

A

/C BL

OW

ER M

O

TO

R

L

INEAR

 CON

T

RO

L

L

E

R

W–B

W–B

A

J1

5

J

UNCTI

O

N

CO

NN

E

C

T

O

R

BA

T

T

ERY

32

D 2

DI

ODE

(A/

C

)

Po

w

e

r So

u

rc

e

A

u

to

m

a

ti

c

 A

ir

 C

o

n

d

it

io

ni

ng

BA

BB

BB

J20

A

, J

2

1

B

J

UNCT

IO

N

CONNE

CTO

R

F 6

A , F 8

C

FUSIBLE LINK BLOCK

, F10

E , F11

F

100A ALT

50A HTR

1

2

MG CL

T

REL

A

Y

From FAN NO. 3
Relay< 18–3>

1

L

1

2

IH

1

6

K OVERALL ELECTRICAL WIRING DIAGRAM

5

6

7

8

27 E

S

300

(Co

n

t’

d

)

A

F

J

I

H

G

E

D

C

B

13

A

2

6

A

1

0A

2B

3

A

1

6

B

9

B

9I

M

2

4

1

12

IM

3

7B

6A

4

A

1

7

A

1

8A

1

9

A

2

0A

9

A

8

A

1

1

A

14

A

16

A

13

B

10

B

14

B

3

B

4B

6B

5B

1

A

8B

1

2

1

2

1

2

11

IM

3

8I

G

1

9I

G

1

1

0

IM

3

10

IM

2

M

M

1

2

2

5

6

2

1

1

456

78

214

3

5

GND

IG

N

AC

1

ACT

TW

2

TAM

T

R

T

E

S

G

TS

TP

S5

AM

C

AM

H

DEF

F/

D

FO

O

T

B/

L

FACE

TPI

AI

F

PS

W

BLW

LO

C

K

MG

C

R

HR

IG

+

B–

W

W–

B

L–

B

W–

B

W–

B

B–

W

L–

Y

L–

W

L–

B

W–

R

L–

B

W–

B

W–

B

W–

R

W–B

B–O

B–Y

LG–B

V

Y

Y

W–R

W–R

W–R

L

W

W

B–Y

L

P

G–R

B–Y

L

P

G–R

L–O

B–L

L–R

L

L–W

P–L

L–Y

L–B

B–W

W–L

L–B

L–W

L–Y

W–L

B–W

L–B

15

A

SP

D

W–R

V–W

B

4

VE

N

T

B/

L

F

O

O

T

F

/D

D

EF

A14

A

, A1

5

B

A/

C CO

NTRO

L A

SSEM

B

L

Y

A 3

A/

C

 M

A

GN

E

T

IC

CL

UTC

H

 A

N

D

L

O

CK

 SE

NS

O

R

A 4
A/C DUAL PRESSURE SW

A28

AI

R VE

NT MO

DE

C

O

NT

RO

L

 SE

RV

O

 MO

T

O

R

A2

6

AI

R 

IN

L

E

T C

O

NTROL

SE

RVO M

O

TOR

To Speedometer
[Comb.   Meter]< 26–2>

IG

GND

B

A

CONT

ROL

CI

RC

UI

T

A 1
A/C AMBIENT TEMP.  SENSOR

A16
A/C ROOM TEMP.  SENSOR

A18
A/C THERMISTOR

A17
A/C SOLAR SENSOR

A27
AIR MIX CONTROL
SERVO MOTOR

A

u

to

mat

ic

 A

ir

 C

ondi

ti

oni

n

g

From Engine Control
Module< 2–7>

7A

7

AI

R

R

3

D

B

DB

DB

EA

E

A

EA

CA

C

A

AB

A

B

G–Y

L–W

W–R

W–R

W–R

W–R

W–R

B–Y

L

L

W–

R

L

L

L

L

W–

R

1

W–R

W–R

W–

R

W–

R

W–

R

J20

A , J21

B

JUNCTION
CONNECTOR

J18

A , J19

B

JUNCTION CONNECTOR

L–O

B–L

L–R

L

L–W

23

A

2

5

A

24

A

L–

R

B–

R

Y–

G

Fr

om

 D

e

fogger

 R

e

la

y

<

18–

2

>

Fr

om

 R

heos

ta

t

<7

–

2

>

Fr

om

 Tel

epho

n

e

 Tr

anscei

v

er

and S

p

eak

er

 R

e

la

y<

24–

3

>

5A

R–

Y

Fr

om

 Thef

t D

e

te

rr

ent

 EC

U

<1

2

–

4

>

From Engine Control
Module< 2–11>

M

RDFG

T

C

TEL

I

SE

C

U

WARM

COOL

To Engine Control
Module< 2–7>

K