1991 LEXUS SC400 remote control

31
Position of Parts in Body
M 1 Mobilephone R 16 Remote Control Mirror LH
M 2 Moon Roof Control Relay R 17 Remote Control Mirror RH
M 3 Moon Roof Control SW R 18 Remote Control Mirror SW
M 4 Moon Roof Motor and Limit SWS 13 Stereo Power Amplifier
O 8 Oxygen Sensor Sub (for California) S 14 Stereo Power Amplifier
P 4 Power Window Control SW RH T 16 Telephone Transceiver and Speaker Relay
P 5 Power Window Master SW and Door Lock Control SW LH T 17 Telephone Transceiver and Speaker Relay
P 6 Power Window Motor LH T 18 Tension Reducer Solenoid LH
P 7 Power Window Motor RH T 19 Tension Reducer Solenoid RH
P 20 Personal Light V 5 Vanity Light LH
R 10 Rear Combination Light LH V 6 Vanity Light RH
R 11 Rear Combination Light RH
R 12 Rear Speaker LH W 8 Wireless Door Lock ECU
R 13 Rear Speaker RH W 9 Woofer Speaker
R 14 Rear Window Defogger (+) W 10 Woofer Speaker Amplifier
R 15 Rear Window Defogger (±)
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238
GROUND POINT
RADIO AND PLAYER
WOOFER SPEAKER
AMP LIFIER
STEREO POWER
AMP LIFIER
CHOKE COIL
HIGH MOUNT STOP
LIGHT
HIGH MOUNT STOP
LIGHT
FUEL LID OPENER
SOLENOID
WIRELESS DOOR LOCK
ECU
POWER SEAT CONTROL
SW(
FOR PASSENGER' S
SEAT )
POWER SEAT ECU
( FOR PASSENGER' S
SEAT )
SEAT HEATER RH
( FOR PASSENGER' S
SEAT BACK )
PPS ECU
REMOTE CONTROL
MIRROR ECU I31
II
BV2
8
IQ2
12
B23 : PIONEER
B24 : NAKAMICHI
BR
BR
BR BR
(
W/O CD PLAYER )
( W/ CD PLAYER ) BR
BR
A/C POWER
TRANSISTOR
BLOWER RESISTOR
(
FOR LOW SPEED )
ABS ECU
ABS AND
TRACTION
ECU
TRACTION ECU (
GND )
DOOR LOCK CONTROL
SW
MIRROR HEATER RH DOOR LOCK MOTOR,
D OOR UNL OC K
DETECTION SW AND
DOOR OPEN DETECTION
SW RH DOOR KEY LOCK AND
UNLOCK SW RH
HEADLIGHT LO LH
I25
I14 B33
B6
B7
HEADLIGHT LO RH
B20
B21
B29
E1
I11 I12 I13
IJ
BL
Bd1
2
Bb14
IJ113
IP1 20
IN1
1
IE2
12
IE1
19
BX1
10
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B W±B W±B W±B W±B W±B
W±B
W±B W±B W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B W±B
W±B
W±B
W±B W±B
W±B
(
W/ REAR SPOILER )
( W/O REAR SPOILER )
W±BW±B
W±B W±B
(
GN D2 )
( GN D3 )
( GN D2 )
( GN D3 )
(
GN D1 )
W±B
W±B
BR
I27
W±B
W±B
WOOFER SPEAKER
AMP LIFIER
BU28
(W/O CD PLAYER )
P±L BR
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1234
10 LEXUS SC300
4ACC
IG1
ST1
AM1 3
1J
7 1B
2
1J
8
1B
4 1H
8
1A
3A 5A 6A 2A 4A
7B 4B
9B 8B 10B 15B 13B 14B 12B 5B 6B 17 IF1 16 IF1
20 IF1
19 IF2 8 I F2 20 I F2 12823109
M
M
3IF1 4IF1 9IF2 1IF1 18IF1 2IF1 10IF1 3IP2 16IP1 1IP2 2IP2 9IP1
3126549 94562 16 B
2B
1B
3B
12 IP1
13 IP1
MM
13
W
W± L W± LW± L
W
W± L
W± LP± L
GR
P±B
Y±B
Y±R
LG±B LG
GR
P± B
Y± B
Y±R
LG±B L±R
W
BR± Y
BR±B
O
L±G
R± G
G±Y
B± W
B±W L±W
R± GG
LG±R
LG±B LG
BR±Y
BR±B
O
L±G
R±G G± Y
B±W
B±W L±W
R±G G
LG±R LG
LG±B
4
6 MVL MHL M+L VSRL VC HSRL E1 HSRR VSRR M+R MHR MVR
ACC +B SWB SWE SWLH SWLV SWRV SWRH SI
40A
IGSW
15A
ECU±B
7. 5A
RA DI O
No. 2
I15
IGNITION SW
120A ALT
100A AM1
F9
FUSE BL OCK SELECT
SW
RH
LH CONTROL
SW
UP
DOWN
RI GHT
LEFT
UP
DOWN
RI GHT
LEFT BEMLHMLVMRVMRH
R1 8
RE MOTE CONTROL MI RROR SW
To Tilt and Power
Telesc opic ECU
< 11±2>
R7 , R8
REMOTE CONT ROL MI RROR E CU
MV MH M+ VSRL VC HSRL E1 E1 HSRR VC VSRR M+ MH MV
BATTERY
R16
REMOTE CONTROL MIRROR LHR17
REMOTE CONTROL MIRROR RH
BA
P± L
Power
Source
Remot e Cont rol Mirr or
(
w/ Memor y )3
4
UP
DOWN
RIGHT
LEFT
UP
DOWN
RIGHT
LEFTB E MLH MLV MRV MRH
M
RH
LH
20 IF2 8 IF2 9 IF2
13IP1 12IP1 9IP1 MM MM Instrument
panel br ace
LH
IG
1D
10
1J
1 GND
11 B
LG±R
BR± B
R±Y LG±R LG±B
LG
LG
LG±B
LG±R
W± B W± B W±BW±B
89101123
132 213 1D
11 3
1H
L±G
LG±B
LG±R
LG±R GR
GR
W± R
R1 8
REMOTE CONTROL
MIRROR SW
R1 6
REMOTE CONTROL
MIRROR LH R1 7
RE MOTE CONTROL
MI RROR RH 2
134567
8 9 10 11 12 13 14 15 16 12
3456
BA
REMOTE CONTROL MIRROR ECU
R7 R8
Remote Control Mirror (
w/o Memory )
Left
kick
panelIF
3
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OVERALL ELECTRICAL WIRING DIAGRAM
1234
11 LEXUS SC300
4ACC
IG1
ST1
AM1 2
1J
51C 6
1I
82
1J
7
1B
51C 1
1H
10
1B
4 1K
13 2
18 BT1 6Ba1
12 BT1 BT1 13 BT1 13 I F2 IF1 IF1 I F1
7B
GN D2
10 AUNSW
5AE1
4A ASW
16 A MSW
17 B
VC
11 A MRY
12 A M2
3A M1
8A ECUE
9A SO
1A SI
2A +
1B
IG 6B
P 18 A
BATT
IF IH 6BU1 47
68
3214
11
19 13 12 1B
2
1H
15
1C
8
1K
7
4B +B 2B
TEM+ 11 B
TEM±
10 B TIM+
6ATES
3B TIM±
7A TI S
M
M
10 1 5 6 3 4 1
WB
BR±B
B±R
R
L±W L±W R
GR
B±R
L±W L±Y L±B
R 6
5
BR 5W± L
W±L W
W
GR GR GR B±R
RR R
L±W
L±W
W
R± B
W± B
Y
B
W
BR±B
BR±B
R±WR±Y
R P
V±Y
V± W
B
W
BR±B
BR±B
P
R
R±Y
BR
P± L
R±L
R±B
Y±R
R±W
BR
L±Y
L±B
BR
W±B
60A MAIN
120A ALT 100A AM1F9
FUSE BLOCK 40A
IGSW
B±Y
GR B±R
BR±B
BR15A
ECU± I G 10A
DOME
Fr om A/ T Indicat or SW
< 3±6>
TI L T AND POWER TELESCOPI C ECU30A
POWER
30A
DOOR
TEL ESCO
LONG TILT
UP
TEL ESCO
SHORT TILT
DOWN
MANUAL SW AUTO SW
T I LT POSI TI ON
SENSOR
TI L T CONTROL MOTOR
TELESCOPIC POSITION
SENSOR
TE LE SCOP I C CONT ROL MOTOR No . 1
No . 2
SET
D1 2
DRIVING POSITION
MEMORY AND RETURN
SW
(
SHI ELDED )(
SHI ELEDED)
BATTERY
BR±B
T7
TELESCOPIC
POSI TI ON SENSOR
Power
Source Power Tilt and Power Telescopic
I15
IGNITION SW
6 74
To Unlock Warning SW
[IGNITION SW]< 4±4> < 5±4>
To Door Lock Mot or,
Door Unloc k Detec tion SW and
Door Open Detec tion SW LH< 17±4>
From Remote Cont rol Mirr or ECU
< 10±4> W
T10 A , T11 B
C17
TI LT AND POWER TELESCOPIC UNIT
[COMB. SW]
(
Cont . ne xt pa ge )
5
4
3
2
1
6789101112
12 34 56 78
9 10 1112 13 14 1516 1718
AA
T11 T10
TIL T AND POWER
TELESCOPI C ECU
W±L
Left kick panel Under t he ashtray LH2
1
3
4 1
2
To Parking Brake SW
< 21±2>
GR
( M/T )
(
A/T )
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OVERALL ELECTRICAL WIRING DIAGRAM
1234
14 LEXUS SC300
1J
41J 7 1J
5
2
44
11
1B
4
441K
13 4 1A
52
22
3 1
4
2
3
2
4
1
5 22
13 IE1
2Bb1
10 IG2
16 IG1
3232
4
ACC
IG1
ST1
AM1 3
2
2 1
IF BL Bk EB
4Bb1
3H
14
1E
18 3A
1 11
3232 1B
1
1J
8
3A
5
1D
11H 4
1C
7 1E
2
3F
5
4IP2
10 Bc 2
20 IP1 4
1
2 2
IJ
BL
B
B
W± B
W
W± LB
WB
B
B
B±R
B
B
W± B
W± B
W± B
W±B
W± B
G
L
R± Y R± Y B
R± Y
W± B
W±B W±B W±B W±B
W± B L
G
GL
R±L
L±R B
L±R
L±R B
W± B
W± B W± B
W± B
W±B
W± B
L±R P±L
L±R B B
P±L
B± Y
B±Y
120A ALT 100A AM1F9
FUSE BOX4
3
I15
IGNITION SW
40A
IGSW 15A
ECU±I G
15A
SEAT±HTR
SEAT HEATAER SW
S18
SEAT HEATER RH
( f or Driver' s Seat Cushion )
S16
SEAT HEATER LH
( f or Pas senger ' s Seat Cus hion )SEAT HEATER
RELAY
W Y
W Y
W± B
To A/C Con tro l
Assembly< 22±7>
BATTERY
S1 7
SEAT HEAT ER RH
( for Driver' s
Se at Bac k )
S1 5
SEAT HEAT ER LH
( for Passenger' s
Se at Bac k )
DEFOGGER
RELAY
10A
HT R
50A
DEFOGGER 10A
MI R± HT R
4 3
LH
RH
MIRROR HEATER
[ REMOTE CONTROL MIRROR]
C22
CHOKE COI L
RE AR WI NDOW
DE FOGGE R
C11
CIGARETTE
LIGHTER
15A
CI G
N2
NOI SE
FILTER
( for Def ogger Syst em )
Power
Source Seat Heater
Rear Window Defogger and
Mirror HeaterCigarette
Lighter
6 54
Lef t kick panel Under t he center pillar
RHUnd er t he
center pillar
LHFr ont s ide of
left fender
Under the
center
pillar RHRight k ic k panel
2
1
1
1J 10
1D 8
3F 2Ba2
Ba1
14
5Ba2 Ba1
12 *
1
* 2
* 1
* 2
3 BY1 2 BU1
5B 7A
10 A 3 A3B 4B
1
B
8
A (
A/ T )
( M/ T )
(
A/T )
( M/T )
*2: (
w/ o Memory Power Seat )
*
1:
(
w/ Me mo r y P ower S ea t )
L
G
W±B (
* 3
)
8E 8E
5F
(
* 4
)
5F 4F 7E
( * 4)
4F
(
* 3)
7E (
* 3)
( * 4)
( * 3
)
( * 4
)
*
3: (
w/ Me mor y )
* 4: (
w/ o Memo r y )
9876 4321 5 54 21
3
E
R16, R17 F
R1 6, R17
MI RROR HE A TER
[ R EMOT E C ON RT OL MI RR OR ] MIRROR HEATER
[REMOTE CONRTOL
MIRROR]
123456
12 34
5 6 10 11 789B
(
A/T )
S24
A
(
M/T )
T12
S2 4 B , T1 2 A
SEAT HEATAER SW
1C
1D
R14 C , R15 D
(* 3) (
* 4 )
L
B
1
1
C
R14 D
R15
REAR WI NDOW DEFOGGER
R17
R1 6 E F
EF
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567 8
17 LEXUS SC300(
Cont ' d )
1I
16 4 4
1D
8 44
16 IF2 18 IF2 18 IP1 6 IP1 15 IP1
7IF2 7IP1 20IP1
1D
10
1J
1
IF IJ
645 546 312 213
MM 16 BX1 9 BX1 8 BX1 2 BX1 11 BX1 15 BX1 3 BX1
7 BY13A
6
3E
7
245610931 7 2 3
BL
R
R±W P±BL±R
L±W
W±L R± B Y
G± Y
G±W P± B
W±L G±L
L±W L±W L±W
L±R L±R W±B
R±W
W± B
L±W
R±W
R±W
R±W P±B
L±W L±W L±W
W±B
L±R
L±R
L±R
W±B
W± B
W± B
R±WP±B L±W
L±R
R±W G±L W± L
L±W
G±W G± Y Y
G± L
W± L
P±BR±L
W± B
W± B R± L
P±B
W±L
G±L Y
G±Y
G± W L±W
RR
L±W
P±B22 11
DI ODE
DI ODE
D1 0
DOOR LOCK MOTOR,
DOOR UNLOCK DETECTION SW
AND DOOR OPEN DETECTI ON SW
LH
D11
DOOR L OCK MOTOR,
DOOR UNL OCK DE TE CTI ON SW
AND DOOR OPEN DET ECTI ON SW
RHL SWD UL L UL SW CTY LSW2 LSWP +B
GNDW7
WI RE LE SS DOOR L OCK
MAIN SW
W8
WI RE LE S S DOOR L OCK ECU
Theft Deterrent and Door Lock Control
From Integration
Relay< 4±3> < 6±3>
Fr om Integration Relay
<4±3><5±3> Fr om Integration Relay
<4±3><5±3>
G±L
From Door Courtesy
Light LH< 6±3> R±W
From I ntegrat ion Relay
<4±3><5±3>
L±W
Wireless Door Lock Remote Control
P± B
T HEFT DET ERRENT AND DOOR L OCK ECU6
4
3
2
1
789101112 14 5
13 13
245 6789
10 11 12 13 14 15 16 17 18 19 20
T8 B T9 A
OR A NGE OR AN GE
Left k ick panel Right k ick panel Under the center
pillar RH
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244
Rear Window Defogger
and Mirror Heater
Remote Control Mirror
Seat Heater
Shift Lock
SRS AIRBAG
Starting
Taillight and
Stop Light
Theft Deterrent and
Door Lock Control
Turn Signal and Hazard
Warning Light
Wiper and Washer
Wireless Door Lock
Remote Control
Horn
Ignition
Illumination
Interior Light
Liquid Crystal Inner
Rear View Mirror
Moon Roof
Power Seat
(Driver's)
Power Source
Power Window
PPS (Progressive
Power Steering
Radio and Player
ABS and
Traction Control
Automatic
Air Conditioner
Auto Antenna
Back±Up Light
Cellular Mobile
Telephone
Charging
Cigarette Lighter
Combination Meter
Cruise Control
Headlight and Light Auto
Turn Off (for USA)
Headlight
(for Canada) ECT and
A/T Indicator
4±2 16±2 7±2
3±2 21±2 3±8
14±4
18±2 19±4 (w/o CD Player)
20±8 (w/ CD Player)9±2 8±2
4±7 (for USA)
5±7 (for Canada)11±2
12±311±5 (w/ Driving
Position Memory)11±7 12±1 1±5 13±2
6±2 15±2 14±2
13±2
17±7 7±3 17±2 15±3
1±315±2
Power Tilt and
Power Telescopic12±2
Power Seat (Passengerºs
and Electric Tension Header
5±2 2±2
Cornering Light ABS (Anti±Lock
Brake System)
22±2
Engine Control Unlock and Seat
Belt Warning
1±2
23±2 (w/o Driving
Position Memory)
1 23±119±2 (w/o CD Player
20±2 (w/ CD Player
14±310±2 (w/ Memory)
5±7 (w/o Memory)
4±3 (for USA)
5±3 (for Canada) 4±5 (for USA)
5±5 (for Canada)
OVERALL ELECTRICAL WIRING DIAGRAM
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51
R5 R7S11
R11
R9 R17 R16 R18
R10 S3 S10 S13 S12
168
90
202
212
208
68
184
216
186 188
S14 T1 T6 S24
216
101 98 104 173
190
173 188
90
216 94 112
Radio and Player
(w/o CD Player)
Rheostat
S18
S17 S23
S15 S16
TDCLRear Turn Signal Light RH
[Rear Comb. Light RH] Back±Up Light LH
[Rear Comb. Light LH]
Stop Light LH
[Rear Comb. Light LH] Rear Turn Signal Light LH
[Rear Comb. Light LH]
Taillight LH
[Rear Comb. Light LH]
Back±Up Light RH
[Rear Comb. Light RH]
Stop Light RH
[Rear Comb. Light RH]
Taillight RH
[Rear Comb. Light RH]
Stop LightSeat Heater
(for Driver's Seat Back)Short Connector
Seat Heater SW (M/T) Remote Control Mirror LH Remote Control Mirror ECU
Speed Sensor No. 1
Shift Lock ECU
Stereo Power Amplifier
Theft Deterrent Horn Remote Control Mirror RH
Remote Control Mirror SW
Stop Light SWSeat Heater
(for Driver's Seat Cushion)
Seat Heater
(for Passenger's Seat Back)
Seat Heater
(for Passenger's Seat Cushion)
86 101 98 86 104 148
154
186
68
98
134
144 134
144
148
178
(4)
: R/B No. 5 (See page ) 22
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