Lexus ES300 (2002 year). Manual — part 51
78
Engine Immobiliser System
20A
EFI
1B
9
10A
IG2
From Power Source System (See Page 56)
1C
7
IF5
7
B
2
A
9
2
3
1
5
1C
4
1C
5
2G
5
2G
17
A
2
ED
1B
3
A
8
C
1
C
7
E
7
E
6
C
4
D
7
D
6
EF
EE
I 6
W–
B
BR
W–
B
W–
B
W–
B
W–
B
W–
B
W
–
B
W–
B
W–
B
W–
B
W–
B
W–
B
BR
B–
W
W–
B
B–
W
B–
R
B–
Y
B–
R
B–
Y
B–
O
B
–
O
Engine Control Module
E 6(A), E 7(B), E 8(C), E 9(D), E10(E)
E1
E03
E01
E02
ME01
E04
E05
MREL
+B1
BATT
IGSW
A
A
EF
I R
e
la
y
I 2
A
1
B–
R
+B
B–
R
2G
8
2G
20
J
unc
ti
on
C
onn
ec
tor
J1
1
2Q
3
B–
R
C
C
J
unc
ti
on
C
onn
ec
tor
J 6
B
26
L–
Y
TXCT
R–
L
27 B
RXCK
CODE
B
15
G–
W
1
5
3
4
+B
TXCT
RXCK
CODE
B–
R
IB
W–
B
A
J
unc
ti
on
C
onn
ec
to
r
J 4
GND
7
W–
B
ANT1
ANT2
Transponder
Key Coil
Transponder Key
Amplifier
I13
(* 1)
(* 2)
3B
3B
16
36
3B
3B
26
46
2
1
L
3A
75
55 3A
8 2M
SB
W–
B
(* 1)
(* 2)
IA
W–
B
U
n
lo
ck W
a
rn
in
g
S
W
U 1
2R
8
B
16
IMLD
A1
4
A
/C Co
n
tr
o
l
A
sse
m
b
ly
(*1)
(*1)
(*2)
3B
3B
14
34
V
3B
3B
24
44
V
(*2)
LP
10
IK1
4
V
J 1
J
unc
ti
on
C
onn
ec
tor
A
A
W–
B
(* 2)
118
98
3B
3B
98
78
3B
3B (* 2)
(* 1)
(* 1)
* 1 : w/ VSC
* 2 : w/o VSC
A
15
BR
EOM
IL1
16
A
BR
BR
L
34 B
KSW
W
IF4
4
79
E6 (A), E7 (B) Engine Control Module
BATT–Ground : Always approx. 12 volts
IGSW–Ground : Approx. 12 volts with ignition SW at ON or ST position
EOM–Ground : Always continuity
KSW–Ground : Continuity with the key in cylinder
: Parts Location
Code
See Page
Code
See Page
Code
See Page
A14
E9
D
J4
E6
A
E10
E
J6
E7
B
I13
J11
E8
C
J1
U1
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1C
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2G
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
2M
2Q
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2R
(
)
3A
3A
Instrument Panel Wire and Passenger Side J/B (Instrument Panel Brace RH)
3B
Instrument Panel Wire and Passenger Side J/B (Instrument Panel Brace RH)
3B
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IF4
Engine Room Main Wire and Instrument Panel Wire (Right Side of Steering Column Tube)
IF5
Engine Room Main Wire and Instrument Panel Wire (Right Side of Steering Column Tube)
IK1
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Reinforcement RH)
IL1
Engine Wire and Instrument Panel Wire (Behind the Glove Box)
: Ground Points
Code
See Page
Ground Points Location
ED
Left Fender
EE
Left Side of Cylinder Head
EF
Intake Side of Cylinder Block
IA
Instrument Panel Reinforcement LH
IB
Instrument Panel Brace LH
: Splice Points
Code
See Page
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
I2
Engine Room Main Wire
I6
Engine Wire
Service Hints
80
Electronically Controlled Transmission and A/T Indicator
1
120A
ALT
1
2E
2
5A
AM1
2A
2
2
1
AM1
ACC
IG1
ST1
IF6
5
1J
7
1L
9
1K
8
P
N
6
9
20A
EFI
1B
9
10A
IG2
From Power Source System (See Page 56)
1C
7
IF5
7
3A
51
3A
91
D
9
D
8
B
2
A
9
2
3
1
5
1C
4
1C
5
2G
5
2G
17
A
2
ED
1B
3
A
8
C
1
C
7
E
7
E
6
C
4
D
7
D
6
EF
EE
I 6
B
19
IK1
7
I 6
E
19
E
18
E
31
E
21
2
3
1
BR
W–
B
BR
W–
B
W–
B
W–
B
W–
B
W–
B
W
–
B
W–
B
W–
B
W–
B
W–
B
W–
B
BR
B–
Y
B–
Y
B–
W
W–
B
B–
W
B–
R
B–
Y
B–
R
B–
Y
B–
O
G–
Y
B–
O
G–
W
G
–
W
BR
BR
LG
B–
R
Y
G–
B
SB
Engine Control Module
E 6(A), E 7(B), E 8(C), E 9(D), E10(E)
T
h
ro
tt
le
P
o
s
iti
on
S
e
n
so
r
T 3
E
ngi
ne
C
o
o
lan
t
T
e
m
p
.
S
ens
o
r
E 3
P
a
rk
/N
e
u
tra
l
Po
s
it
io
n
SW
A 4
Battery
E1
E03
E01
E02
ME01
E04
E05
VTA1
VTA2
VC
THW
NSW
STA
MREL
+B1
BATT
IGSW
STP
B–
G
2
1
B–
G
W
W
G–Y
Ignition SW
I14
G–
Y
4
A
A
FL MAIN
3. 0W
EF
I R
e
la
y
1
2
I 6
1K
7
B–
Y
G–
Y
G–
Y
I 2
A
1
B–
R
+B
B–
R
2G
8
2G
20
J
unc
ti
on
C
onn
ec
tor
J1
1
VC
E2
VTA
VTA2
81
2M
4
2G
7
15A
STOP
From Power Source System (See Page 56)
2G
13
E
28
E
30
E
17
E
16
D
17
D
16
D
19
D
18
D
12
I 6
B
17
B
8
B
10
B
20
B
23
B
11
L–B
Y
W–L
L–W
Y–B
R–B
BR
W
BR
BR
–
W
G
Y–
R
Y–
B
L–
Y
L–R
R–
B
B–
W
GR
SB
G–W
2
1
2
1
D
27
D
26
D
35
D
34
L
LG
R
G
R–
B
Y–
B
L–
W
W–
L
Engine Control Module
Electronically Controlled Transmission Solenoid
E 1(A), E 2(B)
S
top
L
ight S
W
S1
3
T
u
rb
ine S
peed
S
ens
or
T 4
C
ount
er
G
ear
S
peed S
ens
or
C 1
E2
THO
SLT+
SLT–
SL2+
SL2–
SL1+
SL1–
SR
NT+
NT–
NC+
NC–
R
4
3
D
L
SPD
E2
OT
SLT+
SLT–
SL2+
SL2–
SL1+
SL1–
SR
1
2
D
13
L
S4
S4
D
15
D
14
G–
B
G–
R
SL3–
SL3+
SL3–
SL3+
A
4
A
1
B
1
B
5
B
4
B
8
B
3
B
7
B
2
B
6
A
3
A
6
IK1
6
IK1
2
L–
B
V–
W
V–W
9 B
2
Y
E 6(A), E 7(B), E 8(C), E 9(D), E10(E)
BR
O
O
G
GR
W
B
W–
L
BR
R
L
Y
W–
B
D
11
Y
DSL
DSL
A
2
W–
B
R
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