Lexus ES300 (2002 year). Manual - part 71

M  OVERALL ELECTRICAL WIRING DIAGRAM

1

2

34

25 

 ES 300

2

AC

C

IG

1

ST

1

AM

1

4

1

11

120A ALT

30A D. C. C

11

D

1A
2

7. 5A DOME

52

M

2F
7

B–G

B–G

R

B–G

B

a

tte

ry

2

1

3

5

15A SUN–SHADE

IG1 Relay

2A
82

L

1

2R
8

In

st

ru

m

ent

 P

anel

R

e

in

fo

rc

e

m

e

n

t L

H

IA

B–Y

W

W

W

Igni

tion

 S

W

I1

4

F

L

 M

A

IN

3.

 0W

1

2

R

ear

 S

uns

hade

Po

w

e

r So

u

rc

e

2

1

3

5

5A ECU–ACC

ACC Relay

2A
7

2M
8

L–R

3

L–

R

IB

In

st

ru

m

ent

P

anel

 B

rac

e LH

17

IA

4

5

1

A

1

4

A

AA

BC

F

ront

 S

ide of

R

ear

 Q

uar

te

r

Wheel

 H

ous

e L

H

W–B

W–B

W–B

V

V

R–L

IG

E

3A

60

3A

65

3A

69

3A

55

67

3B

47

3B

57

3B

37

3B

9I

H

1

10

IH

1

GR

R

W

W–B

W

W–B

GR

SB

SB

Cl

o

ck

C 6

Junc

tion

C

onn

ec

to

r

J1

2

Ju

n

ct

io

n

C

o

n

nec

to

r

J 4

Ju

n

ct

io

n

C

o

n

nec

to

r

J 1

Rear Sunshade
Control SW

R 7

13

42

Cl

o

c

k

Illumination System<6–4>

(*1

)

(*2

)

(*1

)

(*2

)

* 2

 :

 w

/o

 V

S

C

* 1

 :

 w

/ VSC

2H

13

5A AM1

2A
2

W

2E
2

B–G

7I

H

1

GR

R

RE

V

R–B

2

Back–Up
Light SW
<8–2>

R

ear

 S

uns

had

e

C

ont

ro

l R

e

la

y

R2

1

SW

3

R–L

B–

Y

W–B

W–B

W–B

E

EC

U

2002

M

1

2

3

4

26  ES 300

Battery

FL MAIN
3. 0W

120A
ALT

B–
G

2

ACC

IG1

ST1

AM1

4

2A

2

5A
 A

M

1

2

1

3

5

2E

2

2A

8

IG
1

 R

e

la

y

1

0

A G

A

U

G

E2

40
A

 D

E

F

2E

1

2R

8

2

1

No
is

e

F

ilt

e

r 1

2

1

No
is

e

F

ilt

e

r 2

2

5

1

3

2J

2

2M

8

DE
F

 Re

la

y

10A

 M
IR

 H
T

R

2K

18

2S

2

2G

16

2C

4

IA

Instrument Panel
Reinforcement LH

BA

Under the
Driver’ s Seat

3 IC1

3 IP2

B–
Y

B–
Y

B–
Y

B–
Y

B–
Y

11 IC1

11 IP2

W–B

W–B

W–B

W–B

21

5

RDEF

GND

A

/C Co

n

tro

l A

ss

e

m

b

ly

A1
5

1

Rear Window
Defogger

Choke Coil

C13

P o w e r  S o u rc e

R e a r  W in d o w   D e fo g g e r

M irro r  H e a te r

Ignition SW

I14

B–
G

B–
G

W

B–
G

B–
Y

B–
G

W

Y–
G

B

SB

W–
B

W–B

SB

E

ngi
ne C

ont
ro

l M
odul

e

<

4

–12

>

* 1 : w/ Driving Position Memory
* 2 : w/o Driving Position Memory

1

2

1

2

1

1

3A

24

3A

55

5 B (*2)

3 A (*1)

5 B (*2)

3 A (*1)

9 A (*1)

4 B (*2)

9 A (*1)

4 B (*2)

M

irr

o

r H

eat
er

 R

H

M 4

(A

), 

(B

)

M

irr

o

r H

eat
er

 L

H

M 3

(A

), 

(B

)

IF

Instrument Panel
Reinforcement RH

M  OVERALL ELECTRICAL WIRING DIAGRAM

1

2

34

27 

 ES 300

2

1

1

2

AC

C

IG

1

ST

1

AM

1

3

4

5A

TE

L

2

1

3

5

2

1

3

5

10A

EC

U

–

IG

5A

EC

U

–A

C

C

1D
5

2K

12

2H
6

2R
8

1A
2

2A
82

A

7

2A
22

E

2

IA

3B

SG

4I

D

1

4I

A

2

9I

A

2

8I

A

2

BE

M

A

CC

S

G

ND

M

IC+

MI

C

–

P

H

+

P

H

–

51

4

21

2

1

1

LEXUS Navigation System, 
Radio and Player System
<28–4><29–4>
Radio and Player System
<30–6><31–4><32–4>

C1

0

C

o

m

b

inat

ion S

W

T 5

T

e

lepho

ne M

ic

ro

phone

A/C Control Assembly
<35–5>

(*1)

B

W

G

G–W

L–R

G

G–W

L–R

W–B

B–R

GR

G–B

GR

B–R

W–B

G–B

B–G

B–G

W

W

B–G

B–Y

L–R

Po

w

e

r So

u

rc

e

C

e

ll

u

la

r M

obi

le

 T

e

lephone

B–G

B

a

tte

ry

F

L

 M

A

IN

3.

 0

W

5A

AM

1

I1

4

Ig

ni

tion

 S

W

IG1 Relay

ACC Relay

L–Y

G–B

11

1

20A

AL

T

W–B

11

B

B

4

C
5

1

2B

5B

6B

1

4

B

7B

B
41

C

4

C

D

4

D

1

TE

L

I

S

P

O

U

T–

SP

O

U

T

+

SP

IN

–

SP

IN

+

MU

T

E

G

N

D

M

IC

G

N

D

M

IC

IN

MA

C

C

S

W

–

TL

S

W

B

3

4

A

3

A

G–B

R

G

O

L

Y

G–W

R

G

R–W

B

G

M

U

T

E

SPI

+

SPI

–

S

P+

S

P

–

TE

L

I

MI

C

IN

MA

C

C

S

W

–

TL

S

W

(*1)

GN

D

1

M

IG

N

D

+

B

13

19

24

31

6

56

1

8

1

1

4

G–

B

G–

B

L–

Y

G–

B

L–

Y

21

5

4

T

e

lepho

ne C

o

m

p

u

ter

S

hor

t C

onnec

to

r

6C

IG

R–B

IG

12

26

AC

C

3C

+B

L–Y

W–B

AC

C

C
2

G

(C

o

nt

.  

n

e

x

t pa

ge

)

T

e

leph

one C

o

m

p

ut

er

T1

0

(A

), T

1

1

(B

), T

1

2

(C

), T

1

3

(D

), T

1

4

(E

), T

1

5

(F

)

*

 1 

: 

S

h

ie

ld

e

d

G

In

st

ru

m

e

n

t P

anel

R

e

in

fo

rc

e

m

e

n

t L

H

Lo

w

e

r B

a

ck

P

anel

 C

ent

er

2002

M

5

6

7

8

27  ES 300 (Cont’ d)

14 A

13 A

5 A

4 A

17 A

6 A

15 A

2 A

7 A

8 A

11 A

1 A

10 A

12 A

3 A

C+B

HLED

DNDT

UPDT

DT–

PWR

CHAG

GND

HSW

NOSR

OPT

T–A+

T–A–

R–A+

R–A–

C 4
Cellular Phone (Hand Set)

B–
R

GR

R

G

(*1
)

B

R–
W

BR

R

O

Y

W

O

(*1
)

(*1
)

3

12

10

1

11

8

7

2

15

6

17

4

5

13

14

C e llu la r  M o b ile   T e le p h o n e

Telephone Computer

S+

S–

GND

PCM
_RA

PCM
_TA

VCHG

VBATT

ID VAL

GND

PCM
CLK

PCM
SYNC

CALL

GND

ASYNC
RXD

ASYNC
TXD

16 F

VG1

15 F

SYNC1

8 F

VR1

7 F

B1

6 F

G1

5 F

R1

9 F

TX1–

1 F

TX1+

6 E

VG

3 E

B

7 E

G

1 E

VR

2 E

R

8 E

SYNC

10 E

TX–

5 E

TX+

7

TX+

L–O

20

TX–

B

8

SYNC

W

9

R

R

10

VR

Y

22

G

BR

23

B

L

21

VG

GR
–

L

(*1
)

3

ASYNC
_TXD

R

4

ASYNC
_RXD

G

14

GND

GR
–

L

5

CALL

G

6

PCM_
SYNC

G

1

PCM_
CLK

R

12

GND

L–O

20

ID_
VAL

B

10

VBAT

O

11

VCHG

Y

18

PCM
_TA

G

2

PCM
_RA

R

13

GND

B–
Y

19

S–

L

(*1
)

22

S+

W

(*1
)

(*1
)

L

EXU

S

 N

a

vig

a

tio

n

S

ys

tem
, R

adi
o and

P

lay
er

 S

ys

tem

<2
8

–

3

><2

9

–

3

>

Telephone Computer

Telephone Computer

LEXUS Navigation System, Radio
and Player System
<28–3><28–4><29–3><29–4>

LEXUS Navigation System, 
Radio and Player
System<28–4><29–4>

Telephone Computer

T10(A), T11(B), T12(C), T13(D), T14(E), T15(F)

* 1 : Shielded