Lexus ES300 (2002 year). Manual — part 33

237

10A
ECU–IG

B

1

10A
ECU–B

2R

8

W–

B

12

GND

2B

11

BR

24

SGND

ID

BR

BZR

GR

B

6

3

2

IF5

1

B

u

zze

r

EB

L

L

W–

B

2

1

K 4

K

e

yl

e

ss B

u

zze

r

On

/O

ff

S

W

K

e

yle

ss B

u

zz

e

r

K 1

11 B

GR

–

B

MPX1

IB1

13

7

9

10

IC1

11

BA

2

3

4

14

D

oor

K

e

y

Loc

k

and

U

n

lo

c

k

S

W

F

ront

LH

D1

2

7

GND

KL

KUL

KEYE

MPX1

GR

–

B

W–

B

L–

Y

L

W–

B

W–

B

Driver Door ECU

D17

7. 5A
DOME

2M

5

3A

40

3A

60

IO5

4

IO5

5

B

8

B

9

1

2

3

5

RDA

PRG

W

R

R

G–

R

L–

W

L

–W

G–

R

W–

B

IO5

R

SIG

9

RDA

PRG

+B

E

BD

BB

A

A

W–B

Junction
Connector

J13

Door Lock
Control Receiver

D13

W–B

From Power Source System (See Page 56)

IA2

5

R–

W

R–

W

1

D1

0

D

oor

C

our

te

s

y

S

W

R

ear

L

H

RLCY

A

12

IO5

7

R–

Y

R–

Y

1

D1

1

D

oor

C

our

te

s

y

S

W

R

ear

R

H

RRCY

A

14

Body ECU

B 4(A), B 5(B), B 6(C)

V1

V2

238

Moon Roof

M5 Moon Roof Control ECU and Motor

5–Ground : Always approx. 12 volts
7–Ground : Always continuity

: Parts Location

Code

See Page

Code

See Page

Code

See Page

B4

A

38

D11

40

K1

37

B5

B

38

D12

40

K4

39

B6

C

38

D13

40

M5

41

D8

40

D17

40

O2

41

D9

40

J10

39

D10

40

J13

40

: Junction Block and Wire Harness Connector

Code

See Page

Junction Block and Wire Harness (Connector Location)

2B

28

2M

29

Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)

2R

29

(

)

3A

34 (w/ VSC)

Instrument Panel Wire and Passenger Side J/B (Instrument Panel Brace RH)

3A

35 (w/o VSC)

Instrument Panel Wire and Passenger Side J/B (Instrument Panel Brace RH)

: Connector Joining Wire Harness and Wire Harness

Code

See Page

Joining Wire Harness and Wire Harness (Connector Location)

IA2

46

Instrument Panel Wire and Floor No.1 Wire (Left Kick Panel)

IB1

46

Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)

IC1

46

Front Door LH Wire and Floor No.1 Wire (Left Kick Panel)

IE1

46

Instrument Panel Wire and Roof Wire (Lower Part of Front Pillar LH)

IF5

46

Engine Room Main Wire and Instrument Panel Wire (Right Side of Steering Column Tube)

IO5

48

Instrument Panel Wire and Floor No.2 Wire (Right Kick Panel)

: Ground Points

Code

See Page

Ground Points Location

EB

44

Right Fender

IA

46

Instrument Panel Reinforcement LH

ID

46

Instrument Panel Brace RH

BA

50

Under the Driver’s Seat

BB

50

Under the Front Passenger’s Seat

BD

50

Front Side of Rear Quarter Wheel House RH

: Splice Points

Code

See Page

Wire Harness with Splice Points

Code

See Page

Wire Harness with Splice Points

B3

50

Roof Wire

Service Hints

240

Seat Heater

From Power Source System (See Page 56)

BA

20A
SEAT HTR

2B

2

L

IA3

2

BD1

11

R–

B

7

3

2

1

LG

–B

12 BD1

12

IA3

B–

L

13 BD1

2

1

IA3

7

2 IO4

8

BE1

3

R–

Y

B

4 BE1

4

IO4

7

12 IO4

5

BE1

5

LG

4

E

SGND

B

TH

BD1

10

W–

B

W–

B

S

e

a

t H

eat

er

LH

S2

0

BB

2

1

3

4

E

SGND

B

TH

BE1

6

W–

B

W–

B

S

e

a

t H

eat

er

R

H

S2

1

L

1 2B

6

3

SHD–

SHDE

SHDT

SHP–

SHPE

SHPT

SHD+

SHP+

A/C Control Assembly

A16

LG

–B

R–

Y

LG

R–

B

B–

L

B

B–

L

R–

B

LG

R–

Y

LG

–B

B

241

A16 A/C Control Assembly

3, 6–Ground : Approx. 12 volts with ignition SW at ON or ST position

: Parts Location

Code

See Page

Code

See Page

Code

See Page

A16

38

S20

42

S21

42

: Junction Block and Wire Harness Connector

Code

See Page

Junction Block and Wire Harness (Connector Location)

2B

28

Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)

: Connector Joining Wire Harness and Wire Harness

Code

See Page

Joining Wire Harness and Wire Harness (Connector Location)

IA3

46

Instrument Panel Wire and Floor No.1 Wire (Left Kick Panel)

IO4

48

Instrument Panel Wire and Floor No.2 Wire (Right Kick Panel)

BD1

52

Floor No.1 Wire and Front Seat LH Wire (Under the Driver’s Seat)

BE1

52

Floor No.2 Wire and Front Seat RH Wire (Under the Front Passenger’s Seat)

: Ground Points

Code

See Page

Ground Points Location

BA

50

Under the Driver’s Seat

BB

50

Under the Front Passenger’s Seat

Service Hints