Lexus SC300 / Lexus SC400. Manual - part 996
OVERALL ELECTRICAL WIRING DIAGRAM
1
2
34
21
LE
XU
S
S
C
300
(C
ont
.
ne
xt
pa
ge
)
4
AC
C
IG
1
ST
1
IG
2
AM
1
3
2
6
11
A
M
2
1J
7
1B
4
16
IE
1
20
IK
1
10
IK
2
1I
E
1
1J
31
J
51
J
82
1
B
2
1E
1E
18
1E
1H
1E
2
1
E
13
1B
IG
1
20
3D
3A
4
3D
2
3C
6
3A
2
3F
1
2
1
6
3F
5
3C
5
3A
IK
1
6
IK
1
7
10
IJ
1
IE1
10
IG
1
18
EB
19
IG
1
ED
E
A
13
IE
2
14
IG
3
W–
R
R
Y
B–
O
Y–
B
V–
R
V–
Y
R–
W
L–
R
W
R–
Y
B
V–
W
V
R
L–
R
P–
L
R
L–
R
L–
R
P–
L
P–
L
Y
B–
O
B–
Y
P–L
W–L
R–
W
B
W–
B
R–
W
B
W
W
W–L
W–L
W–L
W
W–R
Y–B
V–R
V–Y
R–W
V–Y
V–R
Y–B
W–R
W
W–R
B–O
R–W
R –W
B
B
R–W
R–W
R–W
V–Y
BR
W–B
R–W
Y
W–B
Y
R
47
1
3
21
1
1
4
12
8
7
9
2
1
2
3
40A
IG
SW
100A
AM
1
120A
ALT
60A
M A
IN
30A
IN
J
30A
AM
2
14
9
I1
5
IG
N
ITIO
N
SW
7.5
AI
G N
10A
G A
U G
E
15A
C IG
10A
DO
ME
15A
EC
U–B
Fro
mABS
EC U
<9–2
>
Fro
mABS
EC U
<8
–5>
(*1
)
(*2
)
6
BA
T
T
E
R
Y
F9
F
U
SE
BL
O
C
K
12
O2
O IL
PR
ES
SU
RE
SW
C5
C O
OLAN
TL
EU
EL
WAR
N IN
GS
W
E6
ENG
IN
EO
IL
LEV
EL
WAR
N IN
GS
W
P3
PA
R
K
IN
G
BR
AK
E
SW
D2
DIO
D E
(for
Par
king
Brake
)
B1
BR AK
EF
LU
ID
LEV
EL
SW
B
B
R–W
R –W
R–
W
R–
W
B
B
B
(C
anada
)
(C
anad
a)
(U
SA
)
(US
A)
(US
A
)
(U
SA
)
(C
a
nad
a
)
(C
ana
da
)
(C
anada
)
(*2
)
(*1
)
(US
A
)(
US
A
)
(US
A)
R–
W
R–
W
Fro
mD
ayt
im
e
R unn
ing
Lig
ht
R elay
<4–
4>
F
rom
C
rui
se
C
on
tr
o
l
E
C
U
<
16
–2
>
T1
5
TR
IP
S
W
A
N
D
TH
E
FT
D
E
TE
R
R
E
N
T
IN
DI
CA
T
O
R
L
IG
H
T
S3
SP
EED
SE
N
S
O
R
N
o
.
1
From
Trac
tion
EC
U
<8–7
>
2
W
12
1
2
2
54
11
13
*
1:
(w
/
T
rac
tio
n
C
ont
rol
)
*
2:
(w
/oT
ra
c
tio
nC
o
n
tr
o
l)
Po
w
e
r
S
our
c
e
C
o
m
b
inat
ion
M
et
er
R–
W
L–
R
R
4
3
SE
CU RI
TY
M
H
SE
T
R
ESE
T
A/
B
W1
W
A
SH
ER
LE
V
E
L
S
W
P–L
L–R
R
W–
R
Fro
mABS
EC U
<8–5
>
(*1
)
R
R
1
0
11
1
2
13
17
18
1
9
20
2
1
12
34
5
67
89
14
15
16
1
2
34
56
78
9
10
1
11
2
13
14
1
51
6
171
8
17
18
1
234
5
678
9
10
23
22
21
20
19
15
14
13
12
11
16
AB
C
C1
2
C1
3
C
1
4
C
O
M
B
IN
AT
IO
N
M
ET
ER
1
1
23
DE
F
U
EL
SE
N
D
ER
F1
7
F1
8
R
ear
si
de
of
c
yl
inde
r
he
ad
L
H
F
ront
si
de
o
f
ri
gh
t
fen
d
er
F
ront
s
ide
o
f
lef
t
fend
er
2
1
2
2
1
1
1
B
S
H
O
R
T
CO
N
NE
CT
O
R
1
2
12
F
S2
3
G
S2
2
7B
U
1
From
Tilt
and
Pow
erT
eles
copi
c
EC
U<
11–2
>
GR
B
(M/
T
)
3
G–
B
F
ro
m
T
h
ef
t
D
et
er
rent
and
D
o
or
Lo
ck
E
C
U
<
17
–2>