Lexus ES300 (2002 year). Service manual — part 66

M OVERALL ELECTRICAL WIRING DIAGRAM

1

2

34

8

ES 300

B–G

B–G

B–G

FL

M

A

IN

3.

0W

B

a

tte

ry

2

AC

C

IG

1

ST

1

AM

1

4

22

A

5A AM1

2E
2

10A GAUGE2

IG1 Relay

2A
8

2R
82

B

6

2

1

3

5

IA

In

st

ru

m

ent

P

anel

R

e

in

fo

rc

e

m

e

n

t L

H

R–L

I1

4

Igni

tion

S

W

B–Y

B–G

W

3I

L

2

R–L

2

3

R–B

2I

L

2

2R
5

2K
3

R–B

R–B

3

1

Back–Up

W–B

W–B

BC

F

ront

S

ide of

R

ear

Q

uar

te

r W

hee

l H

o

u

se LH

R–B

Navigation ECU
<28–3><29–3>

R–B

3

1

Back–Up

W–B

R11

Rear Combination
Light LH

R13

Rear Combination
Light RH

A 4

Back–Up
Light SW

W–B

W–B

B–G

EC

Lef

t F

e

nder

2

1

W–B

G–R

F 1
Front Fog Light LH

EB

R

ight

F

ender

2

1

W–B

G–R

F 2
Front Fog Light RH

2

1

3

5

2G

12

2

R

4

R–Y

Combination SW
<1–8>

12

E

15

A

FO

G

2C

10

FO

G

Re

la

y

1

15A
HEAD LH LWR

1

1A
2

40A

MA

IN

1

2

1

2

5

3

1H

11

H

EAD

Re

la

y

Multiplex Communication
System<1–4>

R

B–G

B–G

R

G–R

1

2

R–B

Po

w

e

r So

u

rc

e

F

og Li

ght

B

a

c

k

–U

p L

ight

1

2

11

1

1

20A

AL

T

R

DB

FA

R

R

6I

F

5

Junction Connector

J 8(A), J 9(B)

31

F

41

F

( *1

)

(*2

)

A

Ju

nc

tion

C

o

nnec

to

r

J1

2

R–B

Rear Sunshade
Control Relay<25–3>

R–

B

2M
8

SB

3A

85

3A

55

SB

SB

SB

2O
7

Combination Meter

C 7

1

10

Front Fog

*

2 :

w

/o D

a

yt

im

e R

unni

ng Li

ght

*

1 :

w

/ D

a

yt

im

e

R

unni

ng Li

ght

2002

M

1

2

3

4

9 ES 300

120A ALT

1A

2

15
A

H

A

Z

1B

1

2

ACC

IG1

ST1

AM1

4

Ignition SW

I14

2A

2

5A
A

M

1

2

1

3

5

2E

2

2A

8

1 2M

1

0

A G

A

U

G

E1

IG
1

R

e

la

y

2R

8

2M

8

IA

Instrument Panel
Reinforcement LH

1

4

8 IF7

Turn Signal Flasher Relay

T 9

C B

A A

8

Junction
Connector

J 6(A), J 7(B)

4

1

2R

1

2N

1

2G

2

2K

20

2

1

R

ear
T

u

rn

S

ignal

Li

ght
L

H

R2
2

EC

Left Fender

2

1

F

ront
T

u

rn

S

ignal

Li

ght
L

H

F 5

2R

2

2N

2

4 2G

EB

2

1

F

ront
T

u

rn

S

ignal

Li

ght
R
H

F 6

2K

8

BE

W–B

1

2

R

ear
T

u

rn

S

ignal

Li

ght
R
H

R2
3

Lower Back
Panel Center

Right Fender

A

3

2

A

A

5

6

7

P o w e r S o u rce

T u rn S ig n a l a n d H a za rd W a rn in g L ig h t

Battery

FL MAIN
3. 0W

B–
G

B–
G

B

–

G

W

W

B–
Y

B–
G

W

W

W–
B

SB

W–B

R–
L

WW

LG
–B

LG
–

B

LG–B

IG

+B

EHW

LL

LR

EL

ER

GND

G–
Y

W–
B

G–
B

W–
B

W–
B

W

–

B

W–
B

W–B

G–
Y

G–
Y

SB

SB

Junction
Connector

J 1

W–B

W–B

W–B

G–
B

G–
B

G–
Y

G–
W

Combination
Meter

C 7

1

1

1

1

2

A A

Body ECU
<1–16>

LG
–B

1

30

13

Off

RH

2

1

3

Tu
rn

S

W

3A

55

3A

85

SB

A

2 IH1

5 IH1

W–
B

3A

57

3A

77

W

TL

TB

TR

A

A

IB

Instrument Panel
Brace LH

Junction
Connector

J 4

SB

W–
B

Tu
rn

R

H

Tu
rn

L

H

C

o

m

b

ina
tion S

W

C1
1

W–B

W–B

LH

Ha
za

rd

S

W

H1
3

M OVERALL ELECTRICAL WIRING DIAGRAM

1

2

34

10

ES 300

(C

o

nt

.

n

e

x

t pa

ge

)

2E
2

1E
7

2

1

3

5

3

5

2

1

22

22

22

22

2

2

1

4

A

B

10A ECU–IG

5A AM1

W

GR

–

R

GR

–

R

W

ABS SOL Relay

7. 5A ABS NO. 4

R

W–G

W–R

W

W–B

W–R

W–L

R+

LG

GR–R

W–B

B–G

FL

M

A

IN

3.

0W

Ba

tte

ry

12

0A

AL

T

Po

w

e

r So

u

rce

VS

C

40A ABS NO. 3

40A ABS NO. 2

W–L

2

1

2

1

2

1

1A
1

62

L

2

1

3

5

2A
2

2R
8

R

1D

30A D. C. C

1A

2P

10A ECU–B

2F

6

1

2

7

W

B–G

B–G

W–B

ABS MTR Relay

In

st

ru

m

ent

P

anel

R

e

in

fo

rc

em

en

t LH

IA

W–B

IG1 Relay

GR

W–R

GR–L

1D

6A

1

0

D

2

4

D

7B

GR–L

GR

GR–R

R

W–B

CS

W

MR

F

SR

AS

T

23

12

2

4

W

10A GAUGE1

12

M

W–R

W

C

TRAC Off SW

T 7

AB

S &

BA &

T

R

AC

&

V

S

C

Ac

tu

a

to

r

A 5

S

kid

C

o

n

tr

o

l E

C

U

S 5

(A

), S

6

(B

), S

7

(C

), S

8

(D

)

Igni

tion

S

W

I1

4

B–G

11

11

1

2

W–

B

E

EB

R

ight

F

ende

r

W–

B

W–B

2

7

AC

C

IG

1

ST

1

IG

2

ST

2

AM

1

4

6

AM

2

2A
8

B–Y

2

W–R

1E

30A AM2

B–R

10A IG2

81

C

1G
5

W–L

1C
7

B–O

W

D

B–

G

8I

F

6

B–R

3I

F

3

W–

R

B–

Y

B–

R

52

O

82

G

W

W

B–G

2L
8

SB

3B

70

3B

30

W–B

MR

MT

34

14

A

2

3

D

R–W

W–B

M

2

SM

1

–

A

Y–G

19

3

SM

1

+

A

L–R

9

SM

1

–

SM

1

+

MR

MT

AST

BS

GN

D

+B

M

Re

la

y

2002

M

5

6

7

8

10 ES 300 (Cont’ d)

V S C

A

B

6

5

1

2

8

4

+BI

YD

GYAW

YAW

GL2

VYS

GL1

YD

GYAW

YAW2

GL2

VYS

GL1

G

B

W

L

R

Y

W–R

W–R

W–R

W

1

2

1

2

RL+

RL–

RR+

RR–

R

G

R

P

L

3 IA3

8 IA3

P

L

G

22 D

16 B

20 B

10 B

22 B

1 B

21 B

22 C

23 C

16 C

15 C

C

W

SM2–

B–
L

A

4

SFLH

L–
B

D

6

SFLR

W–
L

D

7

SFRH

R–
B

A

16

SFRR

W–R

A

8

SRLH

G–
Y

A

7

SRLR

LG
–

B

A

1

SRRH

W–R

D

8

SRRR

R–
G

D

9

SRC1

B–
R

D

31

SRC2

B–
Y

D

5

SRM1

Y–
R

D

4

SRM2

Y–
B

D

21

YSS

3 B

(S

h

ie

lded

)

GND1

W–
B

2 D

GND2

D

3

W–
B

W–
B

15 A

GND3 GND4

A

22

W–
B

ED

Left Fender

EA

Right Fender

Yaw Rate Sensor

Y 1

ABS Speed Sensor
Rear LH

A36

ABS Speed Sensor
Rear RH

A37

20

32

29

17

33

8

31

18

30

28

27

34

26

21 IF4

ABS & BA & TRAC & VSC Actuator

A 5

Skid Control ECU

S 5(A), S 6(B), S 7(C), S 8(D)

TS

LG
–

B

C

10

28 B

W

D/G

19 C

P–
B

TC

D

a

ta

Li
nk

C

onnec

to

r 3

<

4–1

5>
<

4–1

6>

14 IO5

15 IO5

E

W–B

W

B

R

(S

h

ie

ld

e

d

)

PMC2

VCM2

ENG+

E3

NEO

ENG–

IF4

GSS

7

IF4

22

A

12

A

21

A

18

TRC–

20 C

C

14

15

5

11 A

26 B

9 C

18 C

11

TRC+

8 IF4

9 IF4

10 IF4

G

Engine Control Module
<4–13>

L

B

W

BR
–

W

G

L

B

W

BR
–

W

5

SM2+

A

B–
W

10

LBL–

25 D

R–
W

B

rak
e

F

lui

d

Le
ve

l

W

a

rn

ing S

W

B 1

Left Fender

ED

W–B

W–B

2

1

PKB

21 C

S

top Li

ght
S

W

<7
–

8

>

R–
W

STP

3 C

G–
W

P

a

rk

ing B

rak

e S
W

<

1

–

16>

A

B

C

D

W

W

W

W

(Cont. next page)

13 C

GR
–

R

FRO

(*1
)

H

eadl

ight
B

eam

Lev

el C

o

nt

ro

l E

C

U

<

14–

4>

D

D

Junction
Connector

J 3

W–
R

* 1 : w/ Headlight Beam Level Control System

B

W

(S

h

ie

ld

e

d

)

PMC

VCM

E2

FSS

A

13

A

19

A

20

A

10

R

6

16

7

SM2+

SM2–

PMC

VCM

E2

PMC2

VCM2

E3

SFLR

SFRH

SFRR

SRLH

SRLR

SRRH

SRRR

SRC1

SRC2

SRM1

SRM2

SFLH

Pressure Sensor 1

Pressure Sensor 2