Lexus ES300 (2002 year). Manual — part 24

197

B

B

IO4

1

J

unc

ti

on

C

onn

ec

tor

J 5

6

L–

Y

L–

Y

L–

Y

IO5

9

GR

–

R

GR

–

R

7

BB

1

W–

B

Bu

c

kle

SW

R

H

B 8

SS2

SS1

Headlight Beam
Level Control ECU

H14

8

8

A/C

PRST

G

Data Link
Connector 3

D 2

10A
IG2

From Power Source System (See Page 56)

1C

7

2

40A
MAIN

1

5

2

3

1H

11

2G

8

2O

5

A

39

B

8

WNG

HDLP

11

10

1

IF8

11

R–

B

R

–

B

WB

–

O

LG

LG

H

eadl

ight

B

eam

L

e

v

e

l

HEAD
Relay

C

o

m

b

inat

ion Mete

r

C 7

(A

), C 8

(B

)

* 1 : w/ VSC
* 2 : w/o VSC
* 3 : w/ Electric Modulated Suspension System

A

A

A

5

2

6

4

O

ccu

p

a

n

t

De

te

c

ti

o

n

S

ens

or

GR–R

L–Y

G–Y

G–

Y

W–

B

G–

Y

G

–

Y

Y

B–

G

B–

R

L

B

J

unc

ti

on

C

onnec

to

r

J1

4

RBE+

14

Airbag Sensor
Assembly

A32

198

Headlight Beam Level Control

H14 Headlight Beam Level Control ECU

10–Ground : Always approx. 12 volts

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

: Parts Location

Code

See Page

Code

See Page

Code

See Page

A22

38

H2

36

J5

39

B8

42

H14

39

J10

39

C7

A

38

H16

40

S1

37

C8

B

38

J1

39

S7

39

D2

38

J2

39

H1

36

J4

39

: Junction Block and Wire Harness Connector

Code

See Page

Junction Block and Wire Harness (Connector Location)

1C

25

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

1H

25

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

2B

28

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

2G

28

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

2O

29

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)

IF2

IF4

46

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

IF8

g

( g

g

)

IO4

48

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

IO5

48

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

: Ground Points

Code

See Page

Ground Points Location

IB

46

Instrument Panel Brace LH

BB

50

Under the Front Passenger’s Seat

: Splice Points

Code

See Page

Wire Harness with Splice Points

Code

See Page

Wire Harness with Splice Points

I2

48

Engine Room Main Wire

Service Hints

200

Seat Belt Warning

10A
GAUGE1

2M

1

3A

87

3A

57

3B

3B

64

84

3B

3B

54

74

(*1)
(*2)

2N

5

2K

14

ID

W

W

G–

Y

(*1)
(*2)

* 1 : w/ VSC
* 2 : w/o VSC

5

21

Power

Micro Computer

Seat
Belt

Combination Meter

C 7

W

Buzzer

B

5

Airbag Sensor Assembly

A29(A), A30(B), A31(C)

10A
IG2

1C

7

10A
ECU–IG

From Power Source System (See Page 56)

2D

10

2G

8

2D

9

B

6

A

2

A

1

A

19

BA

C

14

BB

A

A

A

IA

B

27

B

28

2R

8

2D

3

Junction
Connector

J14

Bu

c

k

le

SW

L

H

B 7

Bu

c

k

le

SW

R

H

B 8

E1

E2

LSP+

LSP–

LBE+

RBE+

IG2

IG1

40

W

IA4

4

B

2

PBEW

G–

Y

W

1

1

2

5

4

4

5

W–

B

W–

B

W–

B

BR

G–

Y

G–

Y

G–

Y

BR

L–

B

GR

–

B

LG

–B

W–

B

B–

R

B–

O

B–

O

BR

10A
HTR

2M

7

W

3A

59

3A

29

L–

B

B

B

IO4

1

2

Junction
Connector

J 5

A

/C Co

n

tr

o

l

A

sse

m

b

ly

A1

4

(A

), A

1

5

(B

)

PBEW

IG

L–

Y

L–

Y

L–

Y

L–Y

B

12

A

16

BR

O

c

c

upa

nt

De

te

c

tio

n

S

ens

or

S

eat

P

o

s

it

ion

A

ir

bag S

ens

or

BB

–

G

L

Y

B–

R

L

Y

B

201

When the driver has not fastened the seat belt while the ignition SW is ON, the driver seat belt warning light blinks, and a
warning buzzer comes on.
Also, in the front passenger seat, a sensor recognizes passenger, and when the passenger has not fastened the seat belt,
the front passenger seat belt warning light blinks.

B7 Buckle SW LH

4–1 : Closed with driver’s seat belt in use

B8 Buckle SW RH

2–1 : Closed with front passenger’s seat belt in use

: Parts Location

Code

See Page

Code

See Page

Code

See Page

A14

A

38

A31

C

38

J5

39

A15

B

38

B7

42

J14

40

A29

A

38

B8

42

A30

B

38

C7

38

: Junction Block and Wire Harness Connector

Code

See Page

Junction Block and Wire Harness (Connector Location)

1C

25

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

2D

28

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

2G

28

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

2K

28

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

2M

2N

29

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

2R

(

)

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)

IA4

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)

: Ground Points

Code

See Page

Ground Points Location

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

System Outline

Service Hints