4 IS 300 / 200 (RHD) (Cont' d) (Cont.

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4 IS 300 / 200 (RHD) (Cont. next page) 4 IS 300 / 200 (RHD) (Cont' d)
160

H OVERALL ELECTRICAL WIRING DIAGRAM

162

H OVERALL ELECTRICAL WIRING DIAGRAM

E n g in e C o n tro l a n d E n g in e Im m o b ilis e r S y s te m (1 G – F E )
∗ 1 : Shielded
P o w e r S o u rc e E n g in e C o n tro l a n d E n g in e Im m o b ilis e r S y s te m (1 G – F E ) E n g in e C o n tro l a n d E n g in e Im m o b ilis e r S y s te m (1 G – F E )
∗ 1 : Shielded
5 6 7 8
1 2 3 4 A
L–W 9 10 11 12
L–W BR BR BR BR
A B–O
B
B–O
B B–Y T1
C T2 A9

BR

BR

BR

BR

BR

BR
B–Y Throttle Control Motor
Throttle Position Accel Position

System< 12–4>
Multiplex Communication
C B–O C2 1 1
D V1 Sensor Sensor

Sensor
Intake Air Temp.
Camshaft Timing Oil

I13

Water Temp. Sensor

W2
B–O 7 Vacuum

Neutral Start SW< 1–1>

STARTER Fuse< 1–1>
D B–W B–R B–R B–R B–R B–R B–R Control Valve E2 E2

< 20–5>
Skid Control ECU
E EA1 1 1 1 Sensor

< 12–10>
Unlock Warning SW
1 2

< 32–2>
Combination Meter

< 32–2>
Combination Meter
B–W

< 34–2>
A/C COMP Relay
E B–R E2

< 6–4> < 7–4>

Stop Light SW
B–R

B–R

B–R

B–R

B–R

B–R
B–W 3 4 2 1

B–R

B–R
ACC VC PIM
L–B Ignition Coil and Igniters
F 2 1 1 1 1 1 1 1 2 2 3 2 < 2–2> < 2–3> < 2–4>
W 2 AM1 IG1 4 L–R L–R L–B L–B

VSV (ACIS)
V2

VSV (EVAP)
V3

Injector No. 1
I7

Injector No. 2
I8

Injector No. 3
I9

Injector No. 4
I10

Injector No. 5
I11

Injector No. 6
I12
F VC VTA1 VTA2 VC VPA1 VPA2

LEXUS IS 300 / 200 (EWD452E)

W–R
B–W

Y–B
(∗1)
B–R
V–R

L
4 3 2 4 3 2
LEXUS IS 300 / 200 (EWD452E)

LEXUS IS 300 / 200 (EWD452E)

5 B 11 A
S18(A), S19(B)

LG–B
W–R

L–W
G–R

R–B
L–Y

L–Y

L–Y
4 2D 4 2G 2 1D Short Connector
3 2E 1 1D 1 2 2 2 2 2 2 2

R–W

B–W
L–W

Y–G
B–O

B–O
B–Y

L–R
L–B
7 AM2 IG2 6

GR
W–R B–R L–Y L–Y

(M/T)
G–W

W–G
L–W

W–L
B–R

Y–R

R–Y

B–Y
G

L–R
R

L–Y

L–B
L
5 B 11 B

Assembly< 21–3>
Center Airbag Sensor

BR

W
G

G
R
Y

B
L–Y
< 20–6>
Skid Control ECU
2 ST2 E 2(A), E 3(B), E 5(D), E 6(E)
20 B 9 A 1 A 10 A 7 A 5 E 7 D 5 D 6 D 1 E 2 E 3 E 4 E 20 E 19 E 8 E 7 E 30 E 18 E 17 E
L–B Engine and ECT ECU (A/T)
7. 5A 10A IMLD IGSW BATT MREL +BM ACIS PRG # 10 # 20 # 30 # 40 # 50 # 60 CL+ CL– M+ M– GE01 OCV+ OCV– 18 D 22 D 14 D 2 D 9 D 23 D 24 D Engine ECU (M/T) 15 D 16 D 11 E 12 E 13 E 14 E 15 E 16 E 25 E 6 B 2 B 13 B 28 B 13 A 20 A 14 A 21 A 15 A 12 A 21 B 18 A 24 B

ECU< 13–2>
Theft Deterrent
7. 5A 40A IGN GAUGE

< 32–2>
Combination Meter
< 20–6>
Skid Control ECU
I15 E2 THA THW VC PIM VTA VTA2 VPA VPA2 IGT1 IGT2 IGT3 IGT4 IGT5 IGT6 IGF STP STA ACMG SPD TRC+ TRC– ENG+ ENG– NEO TACH MPX1 MPX2 KSW

< 21–3>
Sensor Assembly
Center Airbag
OBD AM1
6 2D Ignition SW
B–O

B–O
B–Y

B–Y

L–B
SIL W FC B B2 OX1B HT1B OX2A HT2A OX1A HT1A
1 23 B 6 A 17 A 16 A 8 A E 2(A), E 3(B), E 5(C), E 6(E) 8 B 9 B 12 D 3 D 13 D 4 D
6 2K 6 1E TC TXCT RXCK CODE KNK1 KNK2 NE NE– G2 E1 E03 F/PS MOL EC KD EOM MOPS PSW ME01 E01 E02
Engine and ECT ECU (A/T)
Engine ECU (M/T) BR 5 B 19 B 18 B 14 B 28 E 27 E 23 E 22 E 10 E 17 D 29 E 3 B 6 E 22 A 3 A 5 A 1 D 8 D 9 E 21 E 31 E
B–O

B–R

B–R
1 2O 1 1C 10 2K 20 IA4
(∗1)

R–W
G–Y
R–L

(∗1)
W

W
B–R A

G
P

V
(∗1) (∗1) A A (∗1)
R–L

G–B
L–B

L–B

(∗1)
(∗1) A

B
B

Junction Connector
J 2(A), J 3(B)
2 2 1 1 E A E A

B–R

B–R
5 2A 3 2J 8 2G (∗1) (∗1) A A (∗1)

B–W

W–B

W–B

W–B

W–B

W–B

W–B
W–L
V–R

B–Y

Y–B
L–B

L–Y
(∗1)

GR
BR

BR
LG
18 IA4 4 IA3 2 IA3 3 IA3 BR

W
B

G
B

L
9 IA3 C

Junction Connector
J 2(A), J 3(B)

BR–W
1 5 5 1 16 6 14 9 BR BR A A (∗1)
W–R
L–W

R–W
B–Y

L–B

C A
W

W
8 2N C
Relay
OPENING
CIRCUIT

EFI BAT A/B TS TAC D4 A (∗1)

BR–Y
R–W

W
Y–G
Relay DLC3 6 2F 5 2E D B 20 IB1 17 IB1 18 IB1
17 A 8 B
B–R

< 21–2>
Sensor Assembly
Center Airbag
Combination Meter
C10(A), C11(B)

L
SG CG TC SIL 15 IA3 14 IA3 13 IA3

B
A B (∗1) (∗1)
SECURITY

1 1 1 1 1 2 3 3 2 5 4 13 7 1 2G 7 2L 12 2I 11 1H 4 2H 9 2G

R–W
R–L

(∗1)
BR

(Bank 1 Sensor 2)
Heated Oxygen Sensor

(Bank 2 Sensor 1)
Heated Oxygen Sensor

(Bank 1 Sensor 1)
Heated Oxygen Sensor
W

H15

H10

H9
Engine
Check

19 IB1

G
P

V
B–R

B–R

B–R

B–R
2 2 1 1

R–W
W–B
BR

3 1 3 1 3 1

Knock Sensor 1
K1

Knock Sensor 2
K2
1 1 2 1 T7 1 1
G–Y
L–R

Body ECU OX HT OX HT OX HT

BR
J9 1 1J 3 1L 4 2E Transponder Key
B

Position Sensor
Crankshaft

Position Sensor
Camshaft
C4

C1

Engine Oil Level Sensor

E8
Junction < 12–20> 4 3 2 Amplifier 2 1

Connector
Junction
J15
7 A 18 A

Pressure SW
Power Steering Oil
Engine Oil Pressure SW
E9

P1
25A 15A 120A 20A A Connector

R–W

R–W

R–W
EFI ETCS ALT AM2 12 2K E1 +B +B E1 +B E1 TXCT RXCK CODE
W–B A A 1
W 1 1
G B 4 2 2 4 2 4
W BR +B GND ANT1 ANT2

Oil Temp.
R–L

Oil Level
2 2 1 2 A G
W–B

W–B

< 21–3>
Sensor Assembly
Center Airbag

< 28–4>
Multi–Display
R–L B–R 1 5 1 2

B–R

B–R
BR

BR

BR
5 2I H
R–L
W–B

W–B
B–R

B–R
H G–Y B–R B–R 1 2
I
L–R

1 G–Y
I B–R 2
4 Transponder
A BR

W–B
2 IA4 7 1E Key Coil
F15
B–L

M Fuel Pump
R–W R–W
W–B

J D 10 EA1
5 R–W R–W
W–B

9 1B J B–R BR D
K E 4 4
B–R B–R BR BR A

W–B

W–B
K BR E J4 A B
F Junction

W–B
BR BR A

W–B

W–B

W–B
BR
Battery B–R F Connector 1 1
G W–B
A A W–B B–R A B
W–B

W–B

W–B
J5 J17 L W–B G A
W–B

W–B
H S18(A), S19(B)

BR
Junction Junction L
Connector Connector W–B Short Connector
H

161
Cowl Side ID Left Quarter BK Left Fender Apron EC IF Cowl Side EA Front Side of Rear Side of EB Left Fender EC Front Side of EA
Panel LH Panel LH Panel RH Cylinder Head Cylinder Head Apron Cylinder Head