Lexus ES300 (2002 year). Service manual - part 67

M  OVERALL ELECTRICAL WIRING DIAGRAM

9

10

11

1

2

10 

 ES 300 

(Co

n

t’

d

)

3B

J 4 Ju

nc

tion

C

onnec

to

r

A

27

3B

W

IB

In

st

ru

m

ent

 P

anel

B

rac

e LH

21

B

21

W

BR

FL

–

F

L

+

FR

–

F

R

+

Y

27

D

2

8

D

12

D

1

3

D

A

B

S

 S

peed S

e

ns

or

F

ront

 LH

A 6

ABS S

peed S

e

n

sor

F

ront

 R

H

A 7

Buzzer

2

1

29

3B

68

B–R

B–R

P–B

5C

7C

2

4

C

B–R

18

B

A

A

2

1

ES

S

IG

W–B

Ju

nc

tion

C

onnec

to

r

J 1

27

B

6

B

VSC Warning Buzzer

V11

39

A

Slip

VSC

TRAC OFF

ABS

BRAKE

6A

3

2

A

1

7B

2

1

A

1

4B

1

3

B

2

0B

BZ

IG

1

+

B

O

SS

1

+

S

S

1

–

T

R

IG

3B

B–R

28

10

TR

IG

Y–R

V

SS

1

–

11

P

SS

1

+

3

9

BA

T

P

IN

D

6

LG

C1

4

VS

C

W

C

R–L

4

L

C

WT

L

B

L

O

C

R–W

8

SP

1

C

L–O

2

WA

C

R–B

1

9B

P

G–W

A/T Indicator
Light SW<5–8>

S

teer

ing S

ens

or

S 9

W

87

3

A

57

3

A

W

40

A

3B

75

3B

85

86

3

B

96

3

B

W

W

W–B

W–B

A

B

C

W

W

W

W

R–W

L

R–L

LG

Po

w

e

r

Sk

id

 C

o

n

tr

o

l 

EC

U

S 5

(A

), S

 6

(B

), S

 7

(C

), S

 8

(D

)

C

o

m

b

inat

ion M

e

te

r

C 7

(A

), C

 8

(B

)

W

VSC

*

 2 :

 w

/ E

lec

tr

ic

 M

odul

at

ed

 S

u

spens

io

n S

ys

te

m

25

B

HA

R

D

GR

Absorber Control
ECU<13–3>

(*2)

ID

In

s

tr

u

m

e

nt

 P

anel

B

rac

e R

H

BR

3B

84

3B

74

BR

M

ic

ro C

o

m

put

er

2002

M

1

2

3

4

11  ES 300

2

ACC

IG1

AM1

4

2A

2

I14
Ignition SW

5A
AM1

2M

1

10A
GAUGE1

2G

21

10A
ECU–IG

2A

8

2

1

5

3

2E

2

2R

8

B–
G

FL MAIN
3. 0W

Battery

IA

Instrument Panel
Reinforcement LH

W–
B

W

–

B

B–
G

B–Y

W

W

IG1
Relay

25

1

23

W

W

13

R–
B

10 IF4

R–
B

W

26

L–
O

IF4

22

L–
O

W

32

R–
Y

IF7

13

6 A

32 A

17 B

R–
Y

40 A

33

P

8 IF4

PP

14 IO5

1

2

A37

ABS Speed Sensor
Rear RH

34

L

9 IF4

LL

15 IO5

11

R

13 ID1

R

12

G

3 ID1

G

1

2

A36

ABS Speed Sensor
Rear LH

30

31

2

1

A 7

ABS Speed Sensor
Front RH

B

W

8

9

2

1

A 6

ABS Speed Sensor
Front LH

Y

BR

EB

Right Fender

EA

Right
Fender

2

24

W–
B

W–
B

L

L

Y–
R

Y–R

14

W

IF4

21

W

D

a

ta

 Li
nk

C

onnec

to

r 3

<

4

–15

>

15

LG
–

B

D

a

ta

 Li
nk

C

onnec

to

r 3

<

4

–16

>

18

R–
W

Pa
rk

in

g

 Br
a

ke

 SW

<

1

–

16>

10

G–
W

S

top 
Li

ght
 S

W

<

7

–8>

S 1
Skid Control ECU with Actuator

C 7(A), C 8(B)
Combination Meter

P o w e r  S o u rce

A B S

2

1

120A ALT

1

1

1

ST1

1A

1

1E

7

2

1

4

0

A ABS

 N

O

. 3

1G

5

2

1

4

0

A ABS

 N

O

. 2

B–
G

57 3A

87 3A

3B

65

3B

55

* 1 : w/ Headlight Beam Level Control System

16

P–
B

D

a

ta

 Li
nk

C

onnec

to

r 3

<

4

–15

>

W–
B

W–
B

W–B

H

e

a

d

light
 B

eam

Lev

el C

ont
ro

l

E

C

U

<

14–

4>

GR
–

R

20

(*1
)

3B

66

3B

76

5

L–
W

12 IF7

C

o

m

b

inat
io

n

M

e

te

r<

5–
8>

L–
W

W

3B

64

3B

54

21 A

B–G

BR

Micro Computer

Power

BR
AK
E

AB
S

LG
–B

(*1
)

GR
–

R

IF8

3

IF7

7

ID[

Instrument Panel
Brace RH

BR

RL+

RL–

RR+

RR–

PN

FR–

FR+

FL–

FL+

GND1

GND2

IG1

WA

SP1

BRL

+BS

+BM

FRO

D/G

TS

TC

PKB

STP

M  OVERALL ELECTRICAL WIRING DIAGRAM

1

2

34

12 

 ES 300

(C

o

nt

.  

n

e

x

t pa

ge

)

2

7

AC

C

IG

1

ST

1

IG

2

ST

2

AM

1

4

6

AM

2

I1

4

Igni

tion

 S

W

WB

–

Y

1E
2

30A AM2

1A
2

W–R

3I

F

3

B–G

B–G

120A ALT

B–G

FL

 M

A

IN

3.

 0W

Ba

tte

ry

22

A

5A AM1

2E
21

0

2

D

10A ECU–IG

IG1 Relay

2

1

3

5

2A
8

2R
82

D

3

W–B

W–B

27

B

6

B

E1

IG

1

B–R

5B

IG

2

B–O

2D
9

2G
8

B–O

1C
7

81

C

10

A

IG

2

4B

GS

W

L

Body ECU
<1–16>

12

B

SI

L

W

19

B

TC

P–B

Data Link
Connector 3
<4–15>

13

B

D–

2

14

B

D+

1

16

B

D2

+

4

17

B

D2

–

3

Y

Y–B

Y–V

Y–O

10

B

P+

1

11

B

P–

2

Y–R

Y–G

8B

P2

+

1

7B

P2

–

2

Y–GR

Y–P

15

B

+S

L

2

26

B

–S

L

1

W–R

BR

1

IF1

3

IF1

W–R

BR

9B

+S

R

2

20

B

–S

R

1

B–W

BR–W

2I

F

1

4I

F

1

B–W

BR–W

PL

+

1

PL

–

2

Y–B

Y

8A

7A

PR

+

1

PR

–

2

Y–B

Y

9C

1

0

C

2

8

B

E2

ID

In

st

ru

m

e

n

t P

anel

B

rac

e R

H

BR

IA

In

st

ru

m

e

n

t P

anel

R

e

in

fo

rc

e

m

e

n

t L

H

W–B

A3

0

(A

), A

3

1

(B

), A

3

2

(C

)

A

ir

bag S

ens

or

 A

ss

e

m

b

ly

A3

5

A

ir

bag S

qui

b

(S

teer

ing Wheel

 P

a

d

)

A3

3

A

ir

b

ag S

qui

b

(F

ron

t P

a

ss

e

nger

 Ai

rb

a

g

 As

se

m

b

ly

 No

. 1

)

A3

4

Ai

rb

a

g

 Sq

u

ib

(F

ront

 P

a

ss

eng

er

 A

ir

bag

 A

ss

e

m

b

ly

 No

. 2

)

A1

2

A

ir

bag S

ens

or

F

ront

 L

H

A1

3

A

ir

bag S

ens

or

F

ront

 R

H

P1

1

P

ret

ens

ioner

LH

P1

2

P

ret

ens

ion

e

r

RH

W

B–G

B–Y

B–

R

W–

R

W

Po

w

e

r S

o

u

rc

e

SR

S

1

2

11

1

A

IF

6

8

72

M

10A HTR

B–

R

B

–

R

W

B

W

18

C

CS

R

+

P–G

3

CS

R

+

12

C

CS

R–

GR–R

2

CS

R–

19

C

V

UCR

LG–B

4

V

UCR

20

C

ESC

R

GR–L

1

ESC

R

8C

IC

R

+

V

1

7C

IC

R

–

O

2

C1

5

C

u

rt

ai

n S

h

ie

ld

A

ir

bag S

ens

or

 R

H

C1

7

C

u

rt

ai

n S

h

ie

ld

 A

ir

bag

S

qui

b R

H

12

M

10A GAUGE1

W

D–

D+

D2

+

D

2

–

P

–

P+

P

2

–

P2

+

2002

M

5

6

7

8

12  ES 300 (Cont’ d)

A30(A), A31(B), A32(C)
Airbag Sensor Assembly

15 A

CSL+

3

5 A

CLS–

2

14 A

VUCL

4

13 A

ESCL

1

L–R

P

BR

G–
W

C14

Curtain Shield
Airbag Sensor LH

9 A

ICL+

1

10 A

ICL–

2

V

O

C16

Curtain Shield
Airbag Squib
LH

CSL+

CSL–

VUCL

ESCL

16 A

VUPL

2

18 A

ESL

1

P–
L

GR
–

L

S16

Side Airbag
Sensor LH

12 A

SFL+

1

11 A

SFL–

2

Y–
R

Y–
G

S22

Side Airbag
Squib LH

VUPL

ESL

17 C

VUPR

P

2

VUPR

15 C

ESR

GR

1

ESR

5 C

SFR+

Y–
R

1

6 C

SFR–

Y–
G

2

S17

Side Airbag
Sensor RH

S23

Side Airbag
Squib RH

RBE+

14 C

A

A

G–
Y

G

–

Y

A

J1
4

Junc
tio

n

C

onne

ctor

5

4

1

G–
Y

G–
Y

BB

W–B

G–
Y

B 8
Buckle SW RH

S R S

2 B

PBEW

G–
Y

4 IA4

G–
Y

A

19

A

2

A

1

LSP–

LSP+

LBE+

5

2

4

GR
–

B

L–
B

LG
–B

1

BA

Under the
Driver’ s Seat

W–B

B 7
Buckle SW LH

2

B

B

L–
Y

L

–

Y

B

J 5

Ju

nc

tion

C

o

nnec

to

r

1 IO4

L–
Y

L–Y

Headlight Beam Level
Control ECU<14–3>

A

/C Co

n

tro

l

A

sse
m

b

ly

A1
4

(A

), A1

5

(B

)

PBEW

16 A

3 B

LA

2D

1

2O

3

W

87

3A

57

3A

Combination Meter

C 7

B–
Y

W

W

A

B

W

W

3B

84

3B

64

3B

54

3B

74

ID

BR

(*1)
(*2)

(*1)
(*2)

W

BR

SRS

Power

Micro Computer

C

o

m

b

inat
io

n

M

e

te

r <

1

5

–3>

(*3)

* 1 : w/ VSC
* 2 : w/o VSC
* 3 : w/ Headlight Beam Level Control System

12 B

3A

59

3A

29

L–B

W

IG

40

12

21

Under the Front
Passenger’ s Seat

Instrument Panel
Brace RH

L

B–
R

B

Y

O

cc

upa

nt

De
te

c

tio

n

S

ens

or

S

eat
 B

e

lt

A

irb

a

g

 S

ens

or

L

Y

B–
G

B