Toyota Sequoia (2005). Manual - part 991

144

SEQUOIA (EM00Z0U)

Automatic Light Control

7. 5A
ECU–B

2C

8

10A
ECU–IG

1G

11

1J

3

1E

2

W–R

W–R

3A

1

3E

2

W–R

B

5

BECU

B–

R

B–

R

C

6

IG

1

5

2

3

1L

1

1G

2

LG

C

11

TRLY

TAILLIGHT
Relay

3

2

5

1

6 2C

1J

6

1G

9

LG–

R

C

8

HRLY

HEAD
Relay

40A M

A

IN

2D

1

2

LG–

R

LG

L

ight C

ontr

o

l S

W

IE

B

6

GND1

W–B

W–B

J 8

B

3

CLTE

BR

3

A27

B

4

CLTB

R–

G

1

B

12

CLTS

Y

4

OFF

Tail

Head

Auto

16

B

10

A

B

7

TAIL

B

9

HEAD

14

13

12

C 8

L–

R

G

G–

Y

1B

7

140A
ALT

F10

W

B

W

8

4

Battery

5

B

B

1

1F

9

A

W–B

W–B

D

D

J 9

B 6(B), B 7(C)

CLTE

CLTB

CLTS

EL

H

T

A

Automatic Light
Control Sensor

Body ECU

Combination SW

Fusible Link Block

Junction
Connector

Junction
Connector

(BAT)

(IG)

SEQUOIA (EM00Z0U)

145

Automatic light control is designed for turning taillights and headlights on/off automatically according to the surroundings
brightness when the light control SW is on AUTO position under the condition that the ignition SW is on.

Automatic Light Control Operation

When the surrounding darkens (Darker than the value set for taillight lighting), taillight is automatically turned on under the
condition that the ignition SW is on with the light control SW being on AUTO position. When further darkens (Darker than the
value set for headlight lighting), the headlight is automatically turned on.
In addition, if the brightness reaches the value set for turning the each light off, each light is turned off.

  :  Parts Location

Code

See Page

Code

See Page

Code

See Page

A27

42

C8

42

J9

44

B6

B

42

F10

22, 40

B7

C

42

J8

44

: Junction Block and Wire Harness Connector

Code

See Page

Junction Block and Wire Harness (Connector Location)

1B

33

Cowl Wire and Instrument Panel J/B (Lower Finish Panel)

1E

33

Cowl Wire and Instrument Panel J/B (Lower Finish Panel)

1F

33

Cowl Wire and Instrument Panel J/B (Lower Finish Panel)

1G

1J

33

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

1L

33

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

2C

29

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

2D

29

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

3A

36

Cowl Wire and Sub J/B No.3 (Upper the Accelerator Pedal)

3E

36

Cowl Wire and Sub J/B No.3 (Upper the Accelerator Pedal)

: Ground Points

Code

See Page

Ground Points Location

IE

51

Cowl Side Panel LH

System Outline

146

SEQUOIA (EM00Z0U)

Key Reminder and Seat Belt Warning

15A
GAUGE

1E

7

16 C

13 B

17 B

3A

15

23 B

R–

L

I19

R–

L

2

7. 5A
ECU–B

2C

8

11 1H

10A
IGN1

3 1J

1D

9

W–R

W–R

1E

2

15

PAON

PBEW

16

Buzzer

5 B

A

24

1 3A

3E

2

W–R

B–

O

W–R

BECU

MPX2

J2

9

(A

), J

3

0

(B

)

L–

Y

BR

13 A

6 B

C

12

GND1

KSW

DCTY

1

1

2

IG

U 1

D1

4

GR

–

R

GR

–

R

OY

–

G

W–B

IE

A

J 8

6 1D

1F

9

(

∗

1

)

W–B

BH

BI2

3

W–B

A

3

5 IM1

3 IM1

B

4 IM1

12 B

4 A

G–

Y

(

∗

1

)

G–

Y

G

–

Y

(

∗

1

)

(

∗

2

)

G–

Y

32 A

24 B

23 B

17

∗

 2 : w/o Power Seat

∗

 1 : w/ Power Seat

Front Passenger
Seat Belt
Warning Light

13

B

B

W–B

W–B

(

∗

1

)

J2

4

(

∗

1

)

W–B

(

∗

2

)

A

2

B

3

(

∗

1)

(

∗

2)

(

∗

1)

(

∗

2)

13

BI2

B 5(A), B 6(B), B 7(C)

3E

5

C 5

(A

), C 6

(B

)

1

IN1

B16(A), (B)

A

G

B

N

Dri

ve

r'

s

S

eat

Be

lt

A

A

J4

3

O

P–AB

IG+

C

24

BL1

3

BL1

5

9

PAON

P–AB

PBEW

FSR+

FSR–

FSR+

FSR–

BSW

BGND

R

L

W

B

W

B

L

V

WW

L

V

3

MPX+

13

MPX–

L–

Y

LG–B

A2

0

(B

), A

2

1

(C

)

O 6

B1

7

(A

), 

(B

)

5

8

4

A

ir

bag S

ensor

A

ssem

b

ly

Body ECU

Buckle SW LH

Bu

ck

le

 SW

 RH

C

o

m

b

inati

on M

e

ter

D

oor

 C

our

tesy S

W

 Fr

ont L

H

Integr

ati

on C

ontr

o

l and P

anel

Juncti

on

C

onnector

Juncti

on

C

onnector

Juncti

on

C

onnector

Juncti

on

C

onnector

Unl

o

ck W

a

rni

ng S

W

O

ccupant C

lassi

ficati

on E

C

U

(IG)

(BAT)

(IG)

B

2

(

∗

2)

B

1

A

2

(

∗

1)

A

1

SEQUOIA (EM00Z0U)

147

1. Seat Belt Warning

In case the driver has not fastened the seat belt when the ignition SW is turned ON, a warning light flashes, and the warning
buzzer goes on.

2. Key Reminder

In case the driver’s door is opened with the key in the key cylinder and the ignition SW at ACC or OFF position, a warning
buzzer goes on.

  :  Parts Location

Code

See Page

Code

See Page

Code

See Page

A20

B

42

B17

A

48 (*1)

J24

48 (*1)

A21

C

42

B17

B

49 (*2)

J29

A

44

B5

A

42

C5

A

42

J30

B

44

B6

B

42

C6

B

42

J43

44

B7

C

42

D14

46

O6

48 (*1)

B16

A

48 (*1)

I19

43

O6

49 (*2)

B16

B

46

J8

44

U1

45

: Junction Block and Wire Harness Connector

Code

See Page

Junction Block and Wire Harness (Connector Location)

1D

33

Cowl Wire and Instrument Panel J/B (Lower Finish Panel)

1E

33

Cowl Wire and Instrument Panel J/B (Lower Finish Panel)

1F

33

Cowl Wire and Instrument Panel J/B (Lower Finish Panel)

1H

1J

33

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

2C

29

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

3A

36

Cowl Wire and Sub J/B No.3 (Upper the Accelerator Pedal)

3E

36

Cowl Wire and Sub J/B No.3 (Upper the Accelerator Pedal)

: Connector Joining Wire Harness and Wire Harness

Code

See Page

Joining Wire Harness and Wire Harness (Connector Location)

IM1

51

Cowl Wire and Cowl Wire (Instrument Panel Brace LH)

IN1

51

Floor No.2 Wire and Cowl Wire (Rear Console)

BI2

54 (*1)

Floor No.2 Wire and Seat No.2 Wire (Under the Driver’s Seat)

BL1

54 (*1)

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

BL1

55 (*2)

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

: Ground Points

Code

See Page

Ground Points Location

IE

51

Cowl Side Panel LH

IG

51

Cowl Side Panel RH

BH

52

Center Pillar LH

* 1 : w/ Power Seat

* 2 : w/o Power Seat

System Outline