Lexus ES300 (1997 year). Manual — part 619

I 5

I 6

I 6

I 6

EC1

4

EC1

2

EC1

1

EC1

3

ED

1

1

A

F

A

F

B

D

1

2

2

1

A

A

A

A

A

A

A

A

A

A

BR

BR

BR

BR

BR

BR

BR

BR

BR

BR

BR

BR

BR

BR

W

G–R

V–W

B–O

BR

BR

BR

BR

W

W

W

W

B–

O

B–

O

B–

O

B–

Y

LG

–

B

BR

BR

BR

BR

BR

BR

BR

BR

L

L

BR

BR

W

BR

B–

R

IGN

AC1

ACT

(SHIELDED)

(SHIELDED)

(SH

IE

L

D

E

D

)

(SH

IE

L

D

ED

)

(SH

IE

L

D

ED

)

(SH

IE

L

D

ED

)

(SH

IE

L

D

E

D

)

(SH

IE

L

D

ED

)

(SH

IE

L

D

E

D

)

(SH

IE

L

D

ED

)

JUNCTION
CONNECTOR

J24

CRANKSHAFT
POSITION SENSOR

CAMSHAFT POSITION
SENSOR

C 2

C 1

KN

O

C

K

SE

N

S

O

R

2

KN

O

C

K

SE

N

S

O

R

1

K 2

K 1

B

10

B

13

A

16

V

A/C CONTROL ASSEMBLY

B

A14

, A15

A

B

14

TW2

J

UNCT

IO

N

CO

NN

E

C

T

O

R

B

J28

, J

2

9

A

B–

W

(SHIELDED)

B

D

B–

O

T

O

ABSO

R

BER

CO

NT

RO

L

E

C

U

C

5

C

6

C

17

B

16

D

1

A

8

B

3

A

12

D

33

D

28

D

34

A

13

A

16

A

5

C

15

C

14

KNKL

KNKR

ACT

A/C

TACH

E01

E02

E03

SPD

W

SIL

ADJ2

E1

G22+

NE–

NE+

ENGINE CONTROL MODULE

B

E 7

, E 8

A

C

, E 9

D

, E10

A

9

THWO

72

ENGINE CONTROL

FROM POWER SOURCE SYSTEM (SEE PAGE 56)

I11

IJ1

6

IJ1

10

II

EE

A

13

D

5

D

13

D

4

C

9

A

A

A

C

B

A

B

B

D

3

C

10

IL1

7

IL1

2

IK2

2

IK3

6

IJ1

3

IK1

3

T

A

CHO

M

E

T

E

R

IJ

7

4

A

D

A

C

16

5

D

1

C

V–W

G–R

W

B–O

BR

BR

BR

V–W

V–W

R–L

R–

L

R–

L

R–

L

R–

L

B–

O

G–

R

L

P

P

L

G–

R

B–

O

G–

R

R–

L

BR

V–

W

R–

L

W–

B

W–

B

W–

B

BR

BR

B

R

B

CG

SIL

BAT

SG

(SHIELDED)

(SH

IE

L

D

E

D

)

M

A

L

F

UNCT

IO

N

IN

DI

CA

T

O

R

L

A

M

P

SP

EED

O

M

ET

ER

J

U

N

C

T

IO

N

CO

NN

E

C

T

O

R

B

J

8

, J

9

A

JUNCTION
CONNECTOR

B

J 8

, J 9

A

COMBINATION METER

C

C 7

, C 9

A

JUNCTION
CONNECTOR

JUNCTION
CONNECTOR

J 4

J25

J17
JUNCTION
CONNECTOR

DA

T

A

L

IN

K

C

O

NNE

CT

O

R

3

D 4

V 2

B

F

A

D

JUNCTION
CONNECTOR

B

J28

, J29

A

A

JUNCTION
CONNECTOR

J15

D

, C10

10A
GAUGE

1D

2

7. 5A
OBD

1J

10

1J

1

2

3

IG+

SE

SI

VEH

IC

L

E

SP

EED

SE

N

S

O

R

(C

O

M

B

IN

A

T

IO

N

M

E

T

E

R

)

1J

7

1J

8

73

74

ENGINE CONTROL

CIR OPN RELAY

1 5 – 1 3 : CLOSED WITH THE STARTER RUNNING

EFI RELAY

5–3 : CLOSED WITH THE IGNITION SW AT ON OR ST POSITION

E 4

ENGINE COOLANT TEMP. SENSOR

1–2 : 10.0

–20.0 K

Ω

(–20

C,

–4

F)

4.0

–

0

7.0 K

Ω

(

00

0

C,

32

F)

2.0

–

0

3.0 K

Ω

(

0

20

C,

68

F)

0.9

–

0

1.3 K

Ω

(

–

40

C,

104

F)

0.4

–

0

0.7 K

Ω

(

–

60

C,

140

F)

0.2

–

0

0.4 K

Ω

(

–

80

C,

176

F)

E7 A , E 8 B , E 9 C , E10 D

ENGINE CONTROL MODULE

VOLTAGE AT ENGINE CONTROL MODULE WIRING CONNECTOR

BATT–E1 : ALWAYS 9.0–14.0 VOLTS

+B–E1 : 9.0–14.0 VOLTS (IGNITION SW TO ON POSITION)

VC–E2 : ALWAYS 4.5–5.5 VOLTS (IGNITION SW AT ON POSITION)

VTA1–E2 : 0.3–0.8 VOLTS (IGNITION SW ON AND THROTTLE VALVE FULLY CLOSED)

3.2–4.9 VOLTS (IGNITION SW ON AND THROTTLE VALVE FULLY OPEN)

VG–E2G : 1.1–1.5 VOLTS (ENGINE IDLING AND A/C SW OFF)

THA–E2 : 0.5–3.4 VOLTS (ENGINE IDLING AND INTAKE AIR TEMP. 20

C, 68

F)

THW–E2 : 0.2–1.0 VOLTS (ENGINE IDLING AND COOLANT TEMP. 80

C, 176

F)

IGF–E1 : 4.5–5.5 VOLTS (IGNITION SW AT ON POSITION)

PULSE GENERATION (ENGINE IDLING)

G22+–NE : PULSE GENERATION (ENGINE IDLING)

NE+–NE : PULSE GENERATION (ENGINE IDLING)

SIL–E1 : PULSE GENERATION (DURING TRANSMISSION)

TACH–E1 : PULSE GENERATION (ENGINE IDLING)

STA–E1 : 6.0 VOLTS OR MORE (ENGINE CRANKING)

THG–E2 : 4.5–5.5 VOLTS (IGNITION SW AT ON POSITION)

EGR–EO1: 9.0–14.0 VOLTS (IGNITION SW AT ON POSITION)

FC–E1 : 9.0–14.0 VOLTS (IGNITION SW AT ON POSITION)

0–3.0 VOLTS (ENGINE IDLING

)

SPD–E1 : PULSE GENERATION (IGNITION SW ON AND ROTATE DRIVING WHEEL SLOWLY)

W–E1 : BELOW 3.0 VOLTS (IGNITION SW AT ON POSITION)

A/C–E1 : BELOW 2.0 VOLTS (ENGINE IDLING AND A/C SW ON)

9.0–14.0 VOLTS (A/C SW OFF)

ACT–E1 : 9.0–14.0 VOLTS (ENGINE IDLING AND A/C SW ON)

BELOW 2.0 VOLTS (A/C SW OFF)

ACIS–EO1 : 9.0–14.0 VOLTS (IGNITION SW AT ON POSITION)

NSW–E1 : 9.0–14.0 VOLTS (IGNITION SW ON AND OTHER SHIFT POSITION IN P OR N POSITION)

0–3.0 VOLTS (IGNITION SW ON AND SHIFT POSITION IN P OR N POSITION)

EVP–E01 : 9.0–14.0 VOLTS (IGNITION SW AT ON POSITION)

TC–E1 : 9.0–14.0 VOLTS (IGNITION SW AT ON POSITION)

STP–E1 : 7.5–14.0 VOLTS (IGNITION SW ON AND BRAKE PEDAL DEPRESSED)

0–1.5 VOLTS (IGNITION SW ON AND BRAKE PEDAL DEPRESSED)

CF–E1 : 9.0–14.0 VOLTS (COOLING FAN IS OPERATING ON HIGH SPEED)

: 0–2.0 VOLTS (COOLING FAN IS OPERATING ON LOW SPEED OR OFF)

TPC–E1 : 9.0–14.0 VOLTS (IGNITION SW ON AND DISCONNECT THE VACUUM HOSE FROM THE VAPOR PRESSURE SENSOR)

PTNK–E1 : 3.0–3.6 VOLTS (IGNITION SW AT ON POSITION)

1.3–2.1 VOLTS (IGNITION SW ON AND APPLY VACUUM 2.0 KPA)

RSC,RSO–E1 : 9.0–14.0 VOLTS (IGNITION SW AT ON POSITION)
KNKL,KNKR–E1 : PULSE GENERATION (ENGINE IDLING)
HTS, HTL, HTR–E03 : 9.0–14.0 VOLTS (IGNITION SW AT ON POSITION)

0–3.0 VOLTS (ENGINE IDLING)

OXS, OXL1, OXR1–E1 : PULSE GENERATION (MAINTAIN ENGINE SPEED AT 2500 RPM FOR TWO MINUTES AFTER WARMING UP)
IGT1, IGT2, IGT3–E1:PULSE GENERATION (ENGINE IDLING)
#10, #20, #30, #40, #50, #60–EO1:9.0–14.0 VOLTS (IGNITION SW AT ON POSITION)

:PULSE GENERATION

(ENGINE IDLING)

I 6, I 7, I 8, I 9 , I10, I 11

INJECTOR

2–1 : APPROX. 13.8

Ω

T 2

THROTTLE POSITION SENSOR

2–1 : 3.75 K

Ω

SERVICE HINTS

75

: PARTS LOCATION

CODE

SEE PAGE

CODE

SEE PAGE

CODE

SEE PAGE

A14

A

28

H10

28

J23

29

A15

B

28

I 1

27

J24

29

C 1

26

I 2

27

J25

29

C 2

26

I 3

27

J26

29

C 7

A

28

I 4

27

J27

29

C 9

C

28

I 5

27

J28

A

29

C10

D

28

I 6

27

J29

B

29

D 1

26

I 7

27

J37

30

D 4

28

I 8

27

K 1

27

E 1

26

I 9

27

K 2

27

E 2

26

I10

27

M 1

27

E 4

26

I11

27

P 1

27

E 7

A

28

I13

28

P 2

27

E 8

B

28

J 4

29

S10

29

E 9

C

28

J 8

A

29

T 2

27

E10

D

28

J 9

B

29

V 1

27

F 6

A

26

J15

29

V 2

27

F 8

C

26

J17

29

V 4

27

F19

30

J18

A

29

V 5

27

H 5

26

J19

B

29

V 6

27

H 6

26

J22

29

V 7

27

: RELAY BLOCKS

CODE

SEE PAGE

RELAY BLOCKS (RELAY BLOCK LOCATION)

1

22

ENGINE ROOM R/B (ENGINE COMPARTMENT LEFT)

: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

CODE

SEE PAGE

JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)

1B

24

COWL WIRE AND INSTRUMENT PANEL J/B (LOWER FINISH PANEL)

1C

24

COWL WIRE AND INSTRUMENT PANEL J/B (LOWER FINISH PANEL)

1D

24

INSTRUMENT PANEL WIRE AND INSTRUMENT PANEL J/B (LOWER FINISH PANEL)

1J

1K

24

COWL WIRE AND INSTRUMENT PANEL J/B (LOWER FINISH PANEL)

1R

24

COWL WIRE AND INSTRUMENT PANEL J/B (LOWER FINISH PANEL)

1W

2A

2C

20

ENGINE ROOM MAIN WIRE AND ENGINE ROOM J/B (ENGINE COMPARTMENT LEFT)

2F

20

(

)

2J

2K

20

COWL WIRE AND ENGINE ROOM J/B (ENGINE COMPARTMENT LEFT)

2L

20

(

)

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

CODE

SEE PAGE

JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)

EB2

34

COWL WIRE AND ENGINE ROOM MAIN WIRE (UNDER THE ENGINE ROOM J/B)

EC1

34

ENGINE WIRE AND SENSOR WIRE (LEFT BANK OF THE CYLINDER HEAD)