1991 LEXUS SC300 CD changer

30
ELECTRICAL WIRING ROUTING
Position of Parts in Body
A 30 ABS Speed Sensor Rear LH D 10 Door Lock Motor, Door Unlock Detection SW and
A 31 ABS Speed Sensor Rear RH Door Open Detection SW LH
A 32 Auto Antenna Motor and Relay D 11 Door Lock Motor, Door Unlock Detection SW andDoor Open Detection SW RH
C 20 CD Automatic Changer D 12 Driving Position Memory and Return SW
C 21 CD Automatic Changer
C 22 Choke Coil F 11 Front Door Speaker LH F 12 Front Door Speaker RH
D 4 DAY/NIGHT Shift SW F 14 Fuel Lid Opener Solenoid
D 5 Door Courtesy Light LH F 15 Fuel Pump
D 6 Door Courtesy Light RH F 16 Fuel Pump ECU
D 7 Door Key Lock and Unlock SW LH F 17 Fuel Sender
D 8 Door Key Lock and Unlock SW RH F 18 Fuel Sender
D 9 Door Lock Control SW RH H 8 High Mount Stop Light (w/o Rear Spoiler)
H 9 High Mount Stop Light (w/ Rear Spoiler)
L 2 Licence Plate Light
L 3 Light Failure Sensor
L 4 Luggage Compartment Door Opener Motor
L 5 Luggage Compartment Key Unlock SW
L 6 Luggage Compartment Light SW
L 7 Luggage Compartment Light
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OVERALL ELECTRICAL WIRING DIAGRAM
1234
20 LEXUS SC300 (
Cont . ne xt pa ge )
4 ACC
IG1
ST1
AM1 3
2
1J
7
1B
4
5
BV3 4
BV3 15
BV3 14
BV3 13
BV3 12
BV3 1
BV3 8
BV3 11
BV3 10
BV3 3
BV3 2
BV3 16
BV3 10
BV1 11
IQ2 2
IE1
3
IG2 2
2
74 3F 8F 9F 10F 1F 6F 11F 2F 7F 4F 5F 12F 3E 2C 6C 1C 3C 4D
6 1G 3G 2G 6G 1H 5H 8H 2H 6H 9H 4H 3H
3
IQ1 7
BV2
2
BV1 1
BV1 19
BV1 7
BV1 18
BV1
1J
8
1E
10
7D 6D 15D 14D 5D 13D 12D 11D 1E 5E 1D 2E 8D 4E 10E
3D
13
BV1
12
BV1
16
BV1
15
BV1
11
BV1
14
BV1
8
BV1
17
BV1
6
BV1
5
BV1
4
BV1
9
BV1
3
BV1
7H
B± Y
GR
L±Y
L±W B±RL±G
Y±R
R±B L±B
P± L W
BR B
G Y
W
BR L
R
L±YW
P±L
B± Y
W
W± L
W
G±WG± OY±R Y± L
B
W
BR
L
R
Y±B
V±W G±B
V
L±Y L±Y W
P±L
L±Y
L±Y
GR
L±Y
L±Y
P± G
L±W
Y±R GR
GR
L±Y
L±W B± R
L±G
Y± R
G±Y
R±W R± L
G± R V
G± B
V±W Y± B R
L
BR W
B
Y± L
Y±R
G± O
G±W
R L
BR
WY
G
BR±B BR
B
W
P±L
R± B
P±L
W
B
BR G
Y
W
BR
L
R
L±B R± B
GR
To Luggage Compar tment
light SW< 6±3>
From Telephon Tr ans ceiv er
and Speaker Relay< 18±1>
To A/C Control SW and Radio SW
< 22±4>
From A/C Control SW and Radio SW
< 22±4>
40A
IGSW I15
IGNITION SW
R± W
TXM+ TXM± TXS+ TXS± CDR+ CDR± SGND CDL+ CDL± GND +B ACC SW
TXM+ TXM± TXS+ TXS± CDR+ CDR± SGND CDL+ CDL± GND +B
BATTERY
60A MAIN 100A AM1
120A ALTF9
FUSE BLOCK F¥
RF¥ LR¥RR¥ L MUTE B E EP GND S GND RU+ RU± A MP MUTE
ACC TLMT PWR VOL+ VOLC SGN1 B ACC ANT ANTA ANTB
P±L
7 . 5A RA DI O No. 220A RADIO No. 1
CD PL AYER
CD A UTOMAT I C CHA NGE R
RA DI O A ND P LA YE R
Power
SourceRadio and Player
(
w/ CD Player )
(
SHI ELDED )
(
SHIELDED )
( SHIELDED )(
SHI ELDED)
( SHI EL DED )
( SHI EL DED )
(
PIONEER )
( PIONEER )
7 8
(
SHI EL DED )
C9 R2 , R3 , R4
F DCE
12
3456
12 34
5678910
GH
CD AUTOMATIC CHANGER
C2 0 C2 1
C20 , C21 GH
123 45
6789101112 F
CD PLAYER
C9 123 45
6 7 8 9 10 11 12
12
3456D
E
RADIO AND PLAYER
R2
R4 R3 C(
PI ONEER )
3
4
1234 567
8 9 10 11 12 13 14 15
BR BR
BR
BR
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212
RADIO AND PLAYER (w/ CD PLAYER)
BV3
5BV3 4BV315 BV3 11 BV314 BV3 13 BV3 1BV38BV3 12 BV310 BV3 3BV32BV316 Bc1 25
I31 I31
I31
B16 B16
B25
D
3D 8D9D10 D 1D6D 11 D2D7D 4D5D12
A
1A 3A2A 6B1B 5B 8B2B6B 9B4B 3B7
C
2C 6C1C3
1
G±RR±L
R±W
G±Y
R±W G±W
G±O
Y±RY±L
B
W
BR
L
R
Y±B
V±W G±B
R±W
G±W
G±O
Y±RY±L
B
W
BR L
R
Y±B
V±W G±B
12 13 14 11
TXM+ TXM± TXS+ TXS± CDR+ CDR±
TXM+ TXM± TXS+ TXS± CDR+ CDR±
SGND CDL+ CDL±
SGND CDL+ CDL±GND +B ACC SW
GND +B ACC
PWR
VOL+
VOLC
SGND
PWR VOL+ VOLC SGND
A/C CONTROL SW
AND RADIO SW A1 5 LUGGAGE
COMPARTMENT
LIGHT SW
L6
CD AUTOMATIC CHANGER
C20 ,
C21
A
B
R2 , R3 ,
R 4
A B C RADIO AND PLAYER C9
DCD PLAYER
BR BR
BR±W
BR±W
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