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]
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]
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)
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)