20

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

[Engine Compartment]

Engine Room R/B No.2Engine Room J/B No.2

Headlamp CleanerControl Relay

Engine Control Module

Skid Control ECUwith Actuator

Engine Room R/B No.3

Power Steering ECU

Injector Driver(EDU)

Engine Room R/B No.1Engine Room J/B No.1

[Instrument Panel]

JunctionConnector(CAN RH)

Airbag SensorAssembly Center

4WD ControlECU

DistanceControl ECU

SteeringLock ECU

Multi-MediaModule Navigation Assembly

Shift LockControl ECU

A/C Amplifier

Cowl SideJ/B RH

Gateway ECU

Body ECU(Cowl Side J/B RH)

Cowl SideJ/B LH

Body ECU(Cowl Side J/B LH)

Tilt and Telescopic ECU

HeadlampSwivel ECU

Junction Connector(CAN LH)

ID CodeBox

Power SourceControl ECU

Tire PressureWarning ECU

Skid ControlECU

Turn Signal Flasher

LEXUS IS 350 / 250 (EM0140U)

21

F

[Body]

Outer MirrorControl ECU(LH)

Door ControlReceiver

ClearanceWarning ECU

Mirror Heater Relay

Seat BeltControl ECU

Stereo ComponentAmplifier

CertificationECU

Rear SunshadeRelay

Outer MirrorControl ECU(RH)

Overhead J/BSliding RoofControl ECU

[Seat]

Position Control ECUand SW (Front RH Seat)

Position Control ECUand SW (Front LH Seat)

NOISE FILTER

DEFOG Relay

GLW RLY2 Relay

HEAD LP Relay

Unit A

* 2:80A EPS (for High Current)* 1:150A ALT (for High Current)

* 3:60A P/I-B (for High Current)* 4:30A LH J/B-B (for High Current)* 5:30A STARTER (for High Current)* 6:30A MAIN (for High Current)* 7:30A RH J/B-B (for High Current)* 8:50A ABS1 (for High Current)* 9:60A E/G-B (for High Current)* 10:80A LH J/B-AM (for High Current)* 11:60A E/G-AM (for High Current)* 12:50A GLW PLG2 (for High Current)* 13:50A HEATER (for High Current)* 14:40A FAN1 (for High Current)* 15:40A FAN2 (for High Current)* 16:50A DEFOG (for High Current)* 17:30A ABS2 (for High Current)* 18:80A RH J/B-AM (for High Current)* 19:50A GLW PLG1 (for High Current)

Fuse Block

GLW RLY1 Relay

STARTER Relay

*10*2

*3

*4

*5

*6

*7

*8

*9

*11

*13

*12

*14

*15

*16

*17

*18

*19

*1

30A

RA

D N

O.1

RA

D N

O.2

IG2

MA

IN

D/C

CU

T

TUR

N-H

AZ

20A

20A

30A

15A

12

3

5

5

3

2 1

5

3

2 1

5

4

3

2 1

35

1 2

12

10A

DO

ME

MP

X-B

10A

12

22

AB

S 3

25A

2 2

122

2

22

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

1 : Engine Room R/B No.1Near the Battery (See Page 20)

: Engine Room J/B No.1Near the Battery (See Page 20)

3 41 2

4321

4321

1 23 4

1 23 4

To FuseBlock

(from Engine Room Main Wire)

(from Engine Room Main Wire)

(from Engine Room Main Wire)

(from Engine Room Main Wire)Wire Color : B

(from Engine Room Main Wire)Wire Color : W-L

(from Engine Room Main Wire)Wire Color : L

(from Engine Room Main Wire)Wire Color : R

(from Engine Wire)Wire Color : B

1 23 4

1 1 1 1 1

1

1

1

Back View

Side View

Side View

Top View

Unit A

1G 1E 1D

11N

1H

1J

1B1C1I1K1L

1F

(from Engine Room Main Wire)Wire Color : B

(from EngineRoom MainWire)Wire Color :W-G

(from Engine Room Main Wire)Wire Color : B

(from Engine Room Main Wire)Wire Color : W

LEXUS IS 350 / 250 (EM0140U)

23

F

Unit A

Fuse Block

150A ALT 80A LH J/B-AM

60A E/G-AM

50A GLW PLG2

50A HEATER

40A FAN1

50A DEFOG

80A RH J/B-AM

50A GLW PLG1

30A ABS2

80A EPS

60A P/I-B

30A LH J/B-B

30A STARTER

30A MAIN

30A RH J/B-B

50A ABS1

60A E/G-B

30A RAD NO.1

2 1 1 2

2 1

2 1

2 1

15A TURN-HAZ

1 2

25A ABS 3

30A RAD NO.2

20A IG2 MAIN

20A D/C CUT

1 1L 1 1J

1 1H

1 1G

2 1G

1 1F

40A FAN22 1F

1 1E

2 1E

1 1D

1 1N

1

1

1

1 1K

1 1I

3 1G

4 1G

3 1F

3 1E

4 1E

1 1C

1 1B

1

1

1

1

24

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

[Engine Room R/B No.1 and Engine Room J/B No.1 Inner Circuit]

LEXUS IS 350 / 250 (EM0140U)

25

Memo

3

3

5

5

1

14

2

2

3 5142

2

4

1

3

3 51

2

3 51

2

3 51

2

IG2

A/C COMP

10A2 1

2

2

1

1

2

1

1

2

2

2

1 2

1 2

1 21

2 1

7.5A

25AFR CTRL-B

Unit C

Unit AUnit B

A/C COMP Relay

FAN NO.1 Relay

A/F Relay

F/PMP Relay

15AA/F

10A

*2

ETCS

FR CTRL-AM

*1

F/PMP

EFI

INJ

FAN NO.3 Relay

35

1 2

ST CUT Relay

35

1 2

IG 2 Relay

10A HORN

20A WASHER

10A FR TAIL

15A FR FOG

* 1:15A H-LP UPR (w/ Daytime Running Light) or20A H-LP UPR (w/o Daytime Running Light)

* 2:7.5A ALT-S (w/ Daytime Running Light) or10A TEL (w/o Daytime Running Light)

30A 1 2STR LOCK

25A

25A

25A

20A

EFI NO.2

H-LP R LWR

H-LP L LWR

10A

15A

15A

BRK-LP Relay

FAN NO.2 Relay

30A H-LP CLN(for High Current)

26

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

2 : Engine Room R/B No.2Engine Compartment Left (See Page 20)

: Engine Room J/B No.2Engine Compartment Left (See Page 20)

1

Unit C

(from Engine RoomMain Wire)

(from Engine RoomMain Wire)

(from Engine RoomMain Wire)

(from Engine RoomMain Wire)

(from Engine RoomMain Wire)

(from Engine RoomMain Wire)

(from Engine RoomNo.2 Wire)

Unit A Unit B

Black

Black

Black

2

1234

5678

1234

5678

1

43

215

67891011

4

1

2

3

123

45

6789

10111213

1234

5678

123

4

567

8

1

12

12

34

567891011

1 3

2 4

123

45

678910111213

2D

2G

2E

2F

2C

2B

2A

LEXUS IS 350 / 250 (EM0140U)

27

F

Unit A

20A INJ

INJ Relay

EFI MAIN Relay

EFI NO.2 Relay

C/OPN Relay

25A EFI

25A F/PMP

1 2C

1 2A

4 2A

3 2A

2 2A

5 2A

8 2A

7 2A

6 2A

1 2B

4 2B

3 2B

2 2B

5 2B

8 2B

7 2B

6 2B

28

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

[Engine Room R/B No.2 and Engine Room J/B No.2 Inner Circuit]

Unit B

15A H-LP UPR (*1)20A H-LP UPR (*2)

(*2) (*2)

(*1)

(*1)

(*2) (*2)

(*3)

(*1)

7

6

22

1

2

3

28

27

12

5

29

30

11

14

4

13

23

24

25

26

21

16

15

9

10

18

17

20

(*1)

(*1)(*1)

(*1)(*1)

(*1)

(*1)

(*1)

(*3)

(*3)(*3)

(*1)

(*2)

(*2)

HEAD HI Relay

HORN Relay

10A HORN

10A FR TAIL

FR TAIL Relay

15A FR FOG

FR FOG Relay

20A WASHER

WASH Relay

Front Controller

* 1:w/ Daytime Running Light* 2:w/o Daytime Running Light* 3:w/ HID

4 2E

3 2E

2 2E

12 2G

13 2G

1 2E

8 2G

9 2G

10 2G

11 2G

6 2G

7 2G

5 2F

6 2F

7 2F

3 2G

1 2G

2 2G

2 2F

9 2F

10 2F

4 2G

5 2G

1 2F

4 2F

8 2F

3 2F

LEXUS IS 350 / 250 (EM0140U)

29

F

30A H-LP CLN

2 1

1 2

1 2

1 2

1 2

1 2

1 2

1 2

1 2

2 1

2 1

25A FR CTRL-B

15A A/F

10A ETCS

7.5A ALT-S (*1)10A TEL (*2)

* 1:w/ Day time Running Light* 2:w/o Day time Running Light

7.5A A/C COMP

30A FR CTRL-AM

10A IG2

10A EFI NO.2

15A H-LP R LWR

15A H-LP L LWR

Unit C

2

2

2

2

2

1 2

25A STR LOCK

2

2

2

2

2

2 2

2 2

2

2 2D 1 2D

30

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

[Engine Room R/B No.2 and Engine Room J/B No.2 Inner Circuit]

LEXUS IS 350 / 250 (EM0140U)

31

Memo

3 51

2

3 51

2

ABS MOTOR1 Relay

ABS SOL Relay

ABS MOTOR2 Relay

5

3

2 1

32

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

3 : Engine Room R/B No.3 Engine Compartment Left (See Page 20)

LEXUS IS 350 / 250 (EM0140U)

33

Memo

Body ECU (Cowl Side J/B LH)

View A View B

View C

1 2 3 4 5 6 7 8 91011121314151617181920212223242526

34

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

: Cowl Side J/B LH Cowl Side Left (See Page 20)

View A

987

121314

2728

1110

1

432

56

987

121314

(from Instrument Panel Wire)

(from Instrument Panel Wire)

1110

1

432

56

15

181716

1920

212223

242526

2728

15

181716

1920

212223

242526

910

111213141516

272829303132

87

6

1

5432

910

111213141516

87

6

1

5432

22

17

212019

26252423

18

272829303132

22

17

212019

26252423

18

LA

LD

LEXUS IS 350 / 250 (EM0140U)

35

F

910

111213

262728

1415

Gray

Gray

Gray

(from Floor No.2 Wire)

(from Engine Room Main Wire)

(from Engine Room Main Wire)

(from Engine Room Main Wire)

(from Engine Room Main Wire)

2930

16171819

2021

87

2425

2322

2627282930

16171819

2021

2425

2322

1

432

56

910

1112131415

87

1

432

56

54321

910

10

876

54 93 82 71 6

1 1

12345

6789

10

109876

54321

1

1

View B

LJ

LK

LL

LM

LN

36

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

: Cowl Side J/B LH Cowl Side Left (See Page 20)

View C

25A

S/R

OO

F

30A

PS

BFR

S/H

TR L

H

EC

U-IG

LH

PA

NE

L

LH-IG

H-L

P L

VL

SE

CU

RIT

Y

FR D

OO

R L

H

RR

DO

OR

LH

FUE

L O

PN

TV N

O.1

MIR

HTR

FR P

/SE

AT

LH

15A

10A

7.5A

10A

7.5A

7.5A

20A

20A

10A

TAIL

10A

10A

30A

A/C

7.5A

15A

FR W

IP

30A

LEXUS IS 350 / 250 (EM0140U)

37

F

20A FR DOOR LH

20A RR DOOR LH

7.5A SECURITY

25A S/ROOF

7.5A A/C

15A MIR HTR

10A TV NO.1

10A FUEL OPN

10A TAIL

7.5A PANEL

10A ECU-IG LH

15A FR S/HTR LHLH-IG2 Relay

TAIL Relay

30A FR P/SEAT LH

30A PSB

(Cont. Next Page)

1 LN 5 LJ

2 LJ

6 LD

22 LD

22 LJ

16 LJ

27 LD

27 LA

28 LJ

28 LD

23 LD

28 LA

24 LJ

22 LA

5 LA

20 LD

21 LD

26 LJ

25 LJ

4 LA

25 LD

29 LD

1 LK

3 LL

2 LL

30 LJ

1 LM

1 LD

2 LD

12 LA

13 LA

7 LK

3 LA

8 LA

25 LA

26 LD

4 LL

7 LD

3 LJ

4 LJ

4 LD

5 LD

8 LK

14 LD

7 LJ

6 LJ

9 LA

10 LA

1 LA

6 LA

7 LA

8 LD

9 LD

12 LD

38

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

[Cowl Side J/B LH Inner Circuit]

7.5A H-LP LVL

LH-IG1 Relay

10A LH-IG

30A FR WIP

MPXB

WIG IG

GND

ILE1

TL

TR

BKUP

SGND

Body ECU (Cowl Side J/B LH )

6 12 15582

14

1

24

25

26

22

9

(Cont'd)

13 LD10 LK

14 LA

11 LA

11 LJ

12 LJ

10 LJ

1 LJ

6 LK

6 LL

10 LD

11 LD

10 LL

21 LA

17 LD

24 LA

5 LK

17 LA

18 LA

17 LJ

4 LK

3 LD

19 LA

16 LA

15 LA

24 LD

23 LJ

23 LA

15 LJ

13 LJ

14 LJ

9 LL

9 LK

20 LA

26 LA

21 LJ

2 LK

3 LK

2 LA

15 LD

8 LJ

9 LJ

7 LL

8 LL

30 LD

5 LL

18 LD

19 LD

27 LJ

29 LJ

18 LJ

19 LJ

20 LJ

1 LL

LEXUS IS 350 / 250 (EM0140U)

39

F

1

Body ECU (Cowl Side J/B RH)

2 3 4 5 6 7 8 91011121314151617181920212223242526

View A View B

View C

40

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

: Cowl Side J/B RH Cowl Side Right (See Page 20)

View A

987

121314

2728

1110

1

432

56

987

1213

(from Instrument Panel Wire)

(from Instrument Panel Wire)

14

1110

1

432

56

15

181716

1920

212223

242526

2728

15

181716

1920

212223

242526

910

111213141516

272829303132

87

6

1

5432

910

111213141516

87

6

1

5432

22

17

212019

26252423

18

272829303132

22

17

212019

26252423

18

RA

RD

LEXUS IS 350 / 250 (EM0140U)

41

F

910

111213

262728

1415

2930

Gray

(from Floor No.1 Wire)

(from Engine Room Main Wire)

(from Engine Room Main Wire)

(from Engine Room Main Wire)

(from Engine Room Main Wire)

Gray

Gray

16171819

2021

87

2425

2322

2627282930

16171819

2021

2425

2322

1

432

56

910

1112131415

87

1

432

56

54321

910

10

876

54 93 82 71 6

1 1

12345

6789

10

109876

54321

1

1

View B

RJ

RK

RL

RM

RN

42

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

: Cowl Side J/B RH Cowl Side Right (See Page 20)

View C

CIG

AC

C

IGN

GA

UG

E

EC

U-IG

RH

FR S

/HTR

RH

RH

-IG

AM

2

FR D

OO

R R

H

RR

DO

OR

RHP

WR

OU

TLE

T

RA

D N

O.3

TI&

TE

STO

P S

W

OB

D

FR P

/SE

AT

RH

15A

15A

7.5A

10A

7.5A

10A

15A

7.5A

15A

20A

20A

10A

20A

7.5A

7.5A

30A

LEXUS IS 350 / 250 (EM0140U)

43

F

20A FR DOOR RH

20A RR DOOR RH

15A AM2

7.5A OBD

7.5A STOP SW

10A RAD NO.3

20A TI&TE

15A CIG

7.5A ACC

ACC Relay

PWR POINTRelay

15A PWR OUTLET

30A FR P/SEAT RH

(Cont. Next Page)

1 RN

1 RM

8 RL

8 RA

14 RA

21 RA

29 RD

22 RA

27 RJ

7 RK

13 RA

14 RJ

9 RD

1 RL

1 RK

23 RD

2 RD

6 RK

3 RJ

4 RJ

15 RD

4 RA

5 RA

9 RA

10 RA

7 RD

11 RD

10 RK

6 RL

5 RJ

2 RJ

4 RD

28 RD

29 RJ

19 RD

21 RD

4 RK

20 RD

22 RD

15 RA

28 RA

25 RJ

26 RD

27 RD

22 RJ

23 RJ

24 RJ

5 RL

30 RD

17 RA

16 RJ

16 RA

30 RJ

44

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

[Cowl Side J/B RH Inner Circuit]

15A FR S/HTR RH

7.5A RH-IG

RH-IG1 Relay

10A ECU-IG RH

7.5A GAUGE 10A IGN

Body ECU (Cowl Side J/B RH)

6 2224

BECU

PKB

ACT+

ACT-

IG GND2 BATBALTB

ACC

GND1

TRLY

GSW

LSWL

L1

UL1

HRLY

LCTY

MPX1

PWS

15

3

1

19

26

5

7

16

25

21

20

10

12

17

14

18

9

8

(Cont'd)

6 RD

12 RD

5 RD

9 RK

1 RA

14 RD

15 RJ

18 RD

3 RK

25 RA

25 RD

24 RD

17 RJ

3 RL

10 RD

9 RJ

6 RJ

3 RD

12 RA

9 RL

10 RL

24 RA

18 RA

28 RJ

18 RJ

19 RJ

20 RJ

5 RK

1 RJ

13 RD

12 RJ

13 RJ

23 RA

27 RA

26 RJ

2 RK

2 RL

4 RL

17 RD

1 RD

7 RA

19 RA

3 RA

2 RA

7 RJ

8 RJ

10 RJ

7 RL

11 RA

26 RA

20 RA

21 RJ

6 RA

11 RJ

LEXUS IS 350 / 250 (EM0140U)

45

F

1

JunctionConnector

J4

JunctionConnector

J8JunctionConnector

J7JunctionConnector

J6JunctionConnector

J5

JunctionConnector

J3JunctionConnector

J2JunctionConnector

J1

2 2

1 1

2 2

1

2

1

2

1

2

1

2

1

2

1

1

2

1

2

1

2

1

2

1

2

1

2

1

2

1

2

JunctionConnector

J9

1

2

46

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

Junction Connector Left Kick Panel (See Page 20)(CAN LH)

2

2

2

2

2

1

1

1

1

1

B

2A

C

D

E

F

2G

2H

2I

B

1A

C

D

E

F

1G

1H

1I

Junction Connector

J1(A), J2(B), J3(C), J4(D), J5(E),J6(F), J7(G), J8(H), J9(I)

LEXUS IS 350 / 250 (EM0140U)

47

F

[Junction Connector Inner Circuit](CAN LH)

1

2

1

2 2

1

2

1

2

1

1

2

1

2

1

2

1

2

1

2

JunctionConnector

J83

JunctionConnector

J86JunctionConnector

J84

JunctionConnector

J82JunctionConnector

J81

48

LEXUS IS 350 / 250 (EM0140U)

F RELAY LOCATIONS

Junction Connector Right Kick Panel (See Page 20)(CAN RH)

2

2

2

2

1

1

1

1

Junction Connector

J81(A), J82(B), J83(C), J84(D), J86(F)

B

C

D

F

2A

B

C

D

F

1A

LEXUS IS 350 / 250 (EM0140U)

49

F

[Junction Connector Inner Circuit](CAN RH)