Lexus SC300 / Lexus SC400. Manual — part 1015

62

STARTING AND IGNITION

AM1

AM2

11

4

1

6

ST1

IG2

A

1

B

1

1J

6

1J

7

2

2

2

1B

4

1K

4

6

9

4

14

13

7

M

IE1

16

EB2

1

IE1

15

E19

L–O

L–O

B

B

B

WW

–

R

W–

R

W

W–

L

W–

R

W–

L

W

W

B–O

B–W

B

B

B

B

W–

R

BATTERY

STARTER

3

1

5

2

IGNITION SW

40A
IGSW

STARTER
RELAY

7. 5A
ST

FUSE BLOCK

TO

TH

E

FT

D

E

TE

R

R

E

N

T

A

N

D

D

OOR

L

OC

K

E

C

U

30A

A

M

2

120

A

A

LT

100

A

A

M1

30A

IN

J

60A

MA

IN

I15

S 6

, S 7

F 9

B

A

3

4

2

1

2

3

IJ1

6

EB1

3

IJ2

8

IJ1

7

B–O

B

B

B

BB

–

W

B–

W

B–

W

(A/

T

)

(M/

T

)

NEUTRAL
START SW

CLUTCH
START SW

N 1

C23

(A/T)

(M/T)

2

63

E18

E14

E20

2

1

ED

W–L

B

B–O

B

W–

B

B–

O

B–

O

B–

O

BB

B–O

TO

C

O

M

B

IN

A

TI

O

N

ME

T

E

R

(T

A

CHO

)

1

2

DISTRIBTOR

IG

NIT

IO

N

CO

IL

I4

D13

IG–

TAC

+B

IGF

IGT

C–

IGNITER

CHECK
CONNECTOR

C 3

I 2

4

3

5

19

1

2

STA

IGF

IGT

77

58

57

ENGINE AND ECT ECU (A/T)

E10

NO

IS

E

F

ILT

E

R

(F

O

R

IG

N

IT

IO

N

S

Y

S

T

E

M

)

N3

1

2

3

4

27

26

25

7

NE

G1

G2

G–

NE

G1

G2

G–

L

R

Y

B

W–

Y

R–

Y

ENGINE ECU (M/T)

E12

64

STARTING AND IGNITION

C 4

COLD START INJECTOR

2–1 : APPROX. 12 VOLTS WHILE START INJECTOR TIME SW IS CLOSED AND STARTER CRANKING

I15

IGNITION SW

4–1 : CLOSED WITH IGNITION SW AT ST POSITION
11–6: CLOSED WITH IGNITION SW AT ON OR ST POSITION

N 1

NEUTRAL START SW

3–2 : CLOSED WITH A/T SHIFT LEVER IN P OR N POSITION

S 6(B), S 7(A)

STARTER

POINTS CLOSED WITH NEUTRAL START SW ON AND IGNITION SW AT ST POSITION

: PARTS LOCATION

CODE

SEE PAGE

CODE

SEE PAGE

CODE

SEE PAGE

C 3

26

F 9

26

N 3

27

C23

28

I 2

27

S 6

B

27

D13

26

I 4

27

S 7

A

27

E10

28

I15

29

E12

28

N 1

27

: RELAY BLOCKS

CODE

SEE PAGE

RELAY BLOCKS (RELAY BLOCK LOCATION)

2

19

ENGINE COMPARTMENT LEFT

: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

CODE

SEE PAGE

JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)

1B

20

ENGINE ROOM MAIN WIRE

1J

20

COWL WIRE

1K

20

COWL WIRE

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

CODE

SEE PAGE

JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)

EB1

34

ENGINE WIRE AND ENGINE ROOM MAIN WIRE (FRONT SIDE OF R/B NO 2)

EB2

34

ENGINE WIRE AND ENGINE ROOM MAIN WIRE (FRONT SIDE OF R/B NO. 2)

IE1

36

ENGINE ROOM MAIN WIRE AND COWL WIRE (R/B NO. 4)

IJ1

36

ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)

IJ2

36

ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)

: GROUND POINTS

CODE

SEE PAGE

GROUND POINTS LOCATION

ED

34

REAR SIDE OF INTAKE MANIFOLD

: SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

E14

34

ENGINE WIRE

E19

34

ENGINE WIRE

E18

34

ENGINE WIRE

E20

34

ENGINE WIRE

SERVICE HINTS

65