Lexus ES300 (2002 year). Service manual — part 74

M OVERALL ELECTRICAL WIRING DIAGRAM

1

2

34

33

ES 300

(C

o

nt

.

n

e

x

t pa

ge

)

B–G

B–G

FL

M

A

IN

3.

0W

B

a

tte

ry

1A
2

30A D. C. C

1D
11

E

2

30A AM2

R

2F
7

10A ECU–B

2M
6

W

W–R

B–G

3I

F

3

2

7

AC

C

IG

1

ST

1

IG

2

ST

2

AM

1

4

6

AM

2

I1

4

Igni

tion S

W

2E
2

5A AM1

2A
2

W

2A
8

2

1

5

3

2R
82

M

1

10A GAUGE1

IG1 Relay

B–Y

IA

In

s

tr

u

m

e

n

t P

anel

R

e

in

fo

rc

em

ent

LH

W–B

W

W–B

8I

F

6

B–R

B–Y

1C
8

10A IG2

1C
7

W

W

W

B–

O

B–

R

20

A

39

A

W

33

A

V–

W

V–

W

( *3

)

V–

W

( *3

)

V–

W

V–

W

R

adi

o and

P

la

yer

w

ith

D

is

p

lay

<

28–

5>

<

2

9

–5>

N

a

vi

gat

ion E

C

U

<

28

–3>

<

2

9

–2>

E

ngi

ne

C

ont

ro

l

M

o

dule

<

4

–12

>

A

/C

C

ont

ro

l

A

ss

e

m

b

ly

<

3

5

–5>

S

te

reo C

o

m

ponent

A

m

pli

fie

r<

2

8

–

8

>

<

30–

2>

40

A

32

A

C 7

(A

), C

8

(B

)

C

o

m

b

inat

ion M

e

te

r

W

8A

W

2O
2

2K
9

Y–R

2

22

A

W

2O
6

2K
2

BR–W

1

11

A

W

Engine Control
Module<4–14>

84

3B

64

3B

74

3B

54

3B

21

A

W

ID

In

st

ru

m

ent

P

a

nel

Br

a

ce

R

H

( *1

)

(*2

)

(*1

)

(*2

)

6A

1

7

B

VSC System<10–11>
ABS System<11–3>

BR

F1

5

F

uel

S

ender

Po

w

e

r So

u

rc

e

C

o

mbi

nat

ion M

e

te

r

*

1

:

w

/ V

S

C

* 2

:

w

/o

V

S

C

1

2

11

1

12

0A

AL

T

4B

23

A

Charging System
<3–2>

B

u

zze

r

Temp.

Fuel

Speedometer

Tachometer

Po

w

e

r

Charge

Door

W–R

3A

92

3A

42

3A

41

3A

82

3A

32

3

A

22

3A

86

3A

56

3A

87

3A

57

V–

W

B

ody

E

C

U

<

1–

14>

3A

72

Multiplex Communication
System<1–9>

24

A

R–L

R–L

W–B

ED

Lef

t F

e

n

der

B 1

Brake Fluid
Level Warning SW

(*2)

2N
3

2G
6

2

1

(*2)

1B

3B

1

9

B

ABS

Fuel

Seat
Belt

5A

Seat Belt Warning
System<15–3>

Rear
Lights

38

A

ST Fuse
<2–1>

3A

W

8I

L

1

2

1

EF

In

ta

ke

S

ide of

C

yli

nd

er

B

loc

k

B–Y

W–B

E 5

Engine Oil
Level Sensor

2O
5

82

G

Mu

lti

In

fo

rm

a

tio

n

Di

sp

la

y

OD

O,

T

R

IP

28

A

W

2O
4

2K
5

G–W

3

(*2)

E

EPR

O

M

12

B

IGN Fuse
<4–7>

12

A

SRS System
<12–6>

Multiplex
Communication
System<1–9>

B

15

31

A

Engine Control Module
<4–15>

Engine Control Module
<4–6>

B

21

Taillight and Stop
Light System<7–7>

B

16

Oil Level

(M

A

RK

L

E

V

INS

O

N

)

*

3

:

w

/ LE

X

U

S

N

a

vi

gat

ion S

y

st

em

B–R

L

W

W

18

A

Multiplex
Communication
System<1–9>

B–W

3A

83

3A

93

FV

FR

FE

Illumination System
<6–5>

2L
8

SB

2M
8

SB

B

A

SB

SB

M

ic

ro C

o

m

p

ut

er

2002

M

5

6

7

8

33 ES 300 (Cont’ d)

C o m b in a tio n M e te r

* 6 : Except USA

* 5 : w/o Daytime Running Light

Illu

m

inat
io

n

M

u

ltip

le

x

C

o

m

m

uni
ca

tion

Sy
s

te

m

<

1

–

9

>

T

a

illi

gh
t and S

to

p

Li

gh
t S

ys

te

m

<

7

–7
>

Illu

m

in

a

tio

n S

ys

te

m

<6
–

5

>

Electronically Controlled
Transmission and A/T Indicator
System<5–6><5–7><5–8>

B

11

A

19

A

37

A

34

A

36

B

22

A

15

A

35

A

2

SB

3A

85

SB

A

1

H

e

adli
ght
B

eam

L

e

ve

l

C

o

nt

ro

l S

ys

tem
<

14–

2>

B

8

C

rui

se

C

ont
ro

l

S

y

stem
<

4

–10

>

A

25

E

n

gi

ne C

ont
ro

l

S

y

stem
<

4

–10

>

B

2

Y–
B

O

il P
re

s

su

re

S

W

O 1

1

IL1

7

W

A

26

Combination Meter

C 7(A), C 8(B)

20 B

13 B

14 B

VSC

S

ys

te

m

<

10–

11>

<

10–

12
>

11 IF7

5 B

P–
L

P

–

L

2

1

W–
B

EB

W 1

W

a

s

her
Lev

el

S

ens

or

Right Fender

H

igh B

eam

O

il P
re

ss

u

re

Was

her
L

e

ve

l

Sl

ip

VS
C

TR
A

C

O
F

F

M

a

lfunc
tion I
ndi
ca

to

r Lam

p

CRUI

S

E

B

R

AKE

3

4

D

N

R

P

55 3A

24 B

Illu

m

in

a

tio

n

S

y

stem
<

6

–5>

A

16

Fr

o

n

t Fo
g

H

ead

(US

A

)

T

a

il

(*6
)

23 B

L

2

H

eadl

ight
B

e

a

m

Lev

e

l

Illu

m

inat
io

n

Tu
rn

L

H

Tu
rn

R

H

A

30

A

13

T

u

rn

S

igna

l and

Ha
za

rd

W
a

rn

in

g

Li

ght
S

y

stem

<

9–3

>

18 B

F

og Li

ght
S

ys

tem

<

8–3

>

A

10

M

u

ltip

le

x

C

o

m

m

uni
ca

tion

Sy
s

te

m

<

1

–

9

>

B

9

B

(USA)

7

(USA)

(C

ana

da
)

SR
S

B

10

Illu

m

inat
io

n

* 1 : w/ VSC
* 2 : w/o VSC

5 IK1

R

5

6

C

o

m

b

inat
ion
S

W

C1
0

SB

R

E

SET

MO

D

E

M

u

ltip

le

x C

o

m

m

uni
ca

tion

Sy
s

te

m

<

1

–

9

>

A

B

SB

* 4 : w/ Daytime Running Light

+DP

–DP

Micro Computer

W–B

20 3B

40 3B

50 3B

70 3B

(*1)

(*2)

R

M OVERALL ELECTRICAL WIRING DIAGRAM

1

2

34

34

ES 300

B–G

B–G

B–G

1

20A

AL

T

B

a

tte

ry

FL

M

A

IN

3.

0W

2

AC

C

IG

1

ST

1

AM

1

4

WB

–

Y

I1

4

Igni

tion

S

W

22

A

5A AM2

2E
22

A

8

2

1

3

5

2R
8

92

F

10A FAN RLY

IG1 Relay

1A
1

30

A

RD

I

1

2

30

A

CD

S

1G
2

1

2

2

1

3

5

1

1

11

G

FA

N

NO

. 3

Re

la

y

B–R

2

1

3

5

1H
3

1F
61

H

6

1E
8

FA

N

NO

. 1

Re

la

y

2

1

5

3

4

11

11

1

FA

N

NO

. 2

Re

la

y

1H
71

H

5

IA

In

st

ru

m

ent

P

anel

R

e

in

fo

rc

em

en

t LH

L

L

R–L

W–L

B–R

4

E

A

1

4

EA2

2E

A

1

B–R

L

R–L

1

2

M

1

2

M

1

2

2

3

W–B

W–B

W–B

R

W 3

Water Temp.
SW No. 1

R 1

Radiator
Fan Motor

A 2

A/C Condenser
Fan Motor

L

2

1

3

D 1
Diode (A/C)

3E

A

1

1E

A

1

3

E

A

2

ED

Lef

t F

e

nder

EB

R

ight

F

ender

W–B

W–B

EC

L

e

ft

F

ende

r

L

W–B

W–B

W–

L

R

B–

R

B–R

B–

G

L–W

Y–G

Engine Control
Module<4–12>

1H
9

1K
2

L

1

W 4

Water Temp.
SW No. 2

W–B

W–B

B–Y

B–G

W

B–

R

W–L

Po

w

e

r So

u

rc

e

R

adi

at

or

F

an

and C

ondens

er

F

a

n

1

2

11

1

1K
5

G–W

G–W

Engine Control
Module<4–10>

MG CLT Relay
<35–3>

L

W–B

W–B

R

Single

Pressure SW

P 4

Memo