Lexus ES300 (2002 year). Manual — part 56

98

Multiplex Communication System

L–R

L–

B

L–R

L–

B

L–R

L–

B

L–

Y

L–R

L–

B

L–

Y

1

6

9

23

ACT–

19

LSR

W–

B

L–

Y

L–R

L–

B

L–

Y

L–R

L–

B

6

4

9

W–

B

L–

R

L–

R

L–

R

L–

B

L–

Y

L–

Y

W–

B

W–

B

L–

B

W–B

W–B

ACT+

11

A

A

A

A

GR

GR

GR

GR

W–B

W–

B

W–

B

W–B

GR

L–B

L–R

W–

B

L–

Y

B

F

B

E

A

D

A

E

B

F

B

E

2H

11

2C

5

2H

12

2C

6

2S

4

2K

16

2H

10

Junction
Connector

J 8(A), J 9(B)

BB1

9

BB1

8

BB1

3

BA1

3

BA1

9

BA1

8

IO4

6

IO4

4

IO4

5

BB1

10

BA1

10

B 7

B11

D

oor

Loc

k

Motor

R

ear

R

H

D

oor

U

n

lo

c

k

D

e

tec

ti

on

S

W

R

ear

R

H

D1

6

D

oor

Loc

k

Motor

R

ear

LH

D

oor

U

n

lo

c

k

D

e

tec

ti

on

S

W

R

ear

LH

D1

5

Junction
Connector

J12

Junction
Connector

J13

BD

BB

BC

A

B

A

B

B

B

B

B

J

unc

ti

on C

onnec

to

r

J 8

(A

), J

9

(B

)

Body ECU

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

L–R

GR

W–B

GR

GR

1

4

99

24

SGND

BR

BR

GR

–

G

MPX4

R

D

4

MDN

1

LG

–B

8

LG

–R

MPX1

GR

GR

G

U

B–

O

PLS

3

PLS

4

W–

B

E

1

SGND

5

3

LMT

6

LMT

7

GND

W–

B

11

5

LG

–

R

GR

MUP

6

11

MPX5

LG

–R

10

6

MUP

GR

GR

–

G

5

W–

B

GND

7

LMT

2

LMT

3

5

SGND

3

E

W–

B

4

PLS

6

PLS

B–

O

U

G

GR

MPX1

GR

–

G

8

LG

–B

1

MDN

4

D

R

PCT

PCT

E

W–

B

GR

B 7

IO4

10

IA3

10

BB1

6

BA1

6

2B

11

C

5

B

1

Power Window Motor
Rear LH

P 9

Power Window Motor
Rear RH

P10

Rear Door RH ECU

R16

Rear Door LH ECU

R15

ID

BB1

7

BA1

7

IO4

11

IA3

5

2 BB1

9 IO4

L–

W

BDR

L–

W

12

12

L–

Y

BDR

L–

Y

BA1

2

2B

5

20

A

PWR

N

O

.

3

2H

2

20

A

PWR

N

O

.

4

L–

W

From Power Source System

(See Page 56)

Body ECU

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

W–B

W–B

GR

GR

100

Multiplex Communication System

Body ECU

9–Ground : Approx. 12 volts with ignition SW at ON or ST position

12, 24–Ground : Always continuity
1, 2, 3–Ground : Always approx. 12 volts

10–Ground : Approx. 12 volts with ignition SW at ACC or ON position

: Parts Location

Code

See Page

Code

See Page

Code

See Page

A4

36

D17

40

J13

40

A14

A

38

D19

36

K1

37

A15

B

38

E4

36

K4

39

A18

38

F8

39

L1

39

A31

38

F9

39

L5

40

B4

A

38

F10

39

L6

40

B5

B

38

F13

40

M5

41

B6

C

38

G2

36

N4

41

C7

A

38

H3

36

O2

41

C8

B

38

H4

36

P5

39

C11

38

H5

36

P7

41

D2

38

H6

36

P8

41

D3

40

H7

36

P9

41

D4

40

H8

36

P10

41

D5

40

H11

36

R15

41

D6

40

H12

36

R16

41

D7

40

I13

39

T1

37

D8

40

I16

40

T6

39

D9

40

J1

39

T9

39

D10

40

J3

39

U1

39

D11

40

J4

39

V12

41

D12

40

J5

39

V13

41

D13

40

J6

39

V15

41

D14

40

J8

A

39

V16

41

D15

40

J9

B

39

D16

40

J12

40

: Relay Blocks

Code

See Page

Relay Blocks (Relay Block Location)

1

22

Engine Room R/B (Engine Compartment Left)

Service Hints

101

: Junction Block and Wire Harness Connector

Code

See Page

Junction Block and Wire Harness (Connector Location)

1B

1C

1D

1E

25

Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

1F

g

g

(

g

)

1G

1H

2A

2B

28

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

2C

28

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

2D

2E

2F

28

Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)

2G

g

(

)

2H

28

Floor No 1 Wire and Driver Side J/B (Lower Finish Panel)

2K

28

Floor No.1 Wire and Driver Side J/B (Lower Finish Panel)

2L

2M

2N

2P

29

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

2Q

(

)

2R

2S

3A

34 (w/ VSC)

3A

35 (w/o VSC)

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

3B

34 (w/ VSC)

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

3B

35 (w/o VSC)

: Connector Joining Wire Harness and Wire Harness

Code

See Page

Joining Wire Harness and Wire Harness (Connector Location)

EA2

44

Engine Room Main Wire and Engine Room No.2 Wire (Behind the Headlight LH)

IA2

IA3

46

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

IA4

(

)

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)

IF4

IF5

46

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

IF7

g

( g

g

)

IK1

48

Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Reinforcement RH)

IL1

48

Engine Wire and Instrument Panel Wire (Behind the Glove Box)

IL2

48

Engine Wire and Instrument Panel Wire (Behind the Glove Box)

IO2

IO4

48

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

IO5

( g

)

IP1

48

Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)

IP2

48

Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)

BA1

50

Rear Door No.2 Wire and Floor No.1 Wire (Left Center Pillar)

BB1

50

Rear Door No.1 Wire and Floor No.2 Wire (Right Center Pillar)