1991 LEXUS SC400 sensor

230
AUTOMATIC AIR CONDITIONER
MHOT COOL
I27 I27
I27
I27
E18
I28
EB1
7
IN1
4 II1 4
IQ1
5
II1
1
IR2
3 IR1
4IR1 10 IR1 9IR18IR1 13 IR112
2 1
2 1
2 1
B
8B 3B10 B 9B18 B 22 C 2C3B 20 B 25 C 9C8 BR
BR±W
BR
BR ±W BR
BR
BR±W
G±W
V
R±Y
BR
BR
BR
BR
BR
P± B
G±Y
P±B
P
L±Y
BR±W
G±W
V
R±Y
Y± R
Y±B
W BR±W
Y± R
BR BR±W
G± W
V
R±Y
Y±G Y±L
TAM LCKI TW TE S5 TP MH MC SG TPM MDEF MFACE 26 1 54
AIR MIX CONTROL
SERVO MOTOR
A/C CONTROL ASSEMBLY
A/C LOCK SENSOR A/C AMBIENT
TEMP. SEN SOR A/C SOLAR SENSOR
A1
A2
A20
A27
A12 , A 1 3 , A 1 4 CAB
BR± W
I27
I27
3 1
W4
WATER TEMP. SENSOR2 1 IR1
5
IR2
8IR1 7
I29IR1
11A/C EVAPORATOR
TEMP. SENSOR A16
BR±W
Y±GY±L W
BR
BR
Y±G
BR BR±W
BR BR BR
BR ±W
BR
BR BR
G± Y
LG±R G± Y
Y±R Y± B WW
BRBR
IQ1
6
BR BR
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231
IQ1
1IQ1 9
IQ1
15 IK1
8
M
1B
53A 5
3A
6
3B
3 1E
11 3G 51E
2
2
2615 4 1
4 398765 4
B
4B 12 B 13 B14 B 15 B16 C 1C 15 B1
BR
BR±W Y±GY±L W
TACH
BR
BR±W
Y±GY±L
W R
R
R
L±R L±R
B
B
B L±RR
B±Y
B±R Y
G±O
V±R
V±W
L±R
SAUT SET1 SET2 SET3 SET4 SET5 +B ACC IGN
A/C VENT MODE CONTROL
SERVO MOTOR
ROOM TEMP. CONTROL SW
A/C CONTROL ASSEMBLY IGNITER
10A
DOME
15A
CIG
FROM POW ER SOURCE
SYSTEM(
SEE PAGE 56 )
A12 ,A13
,A14
A15
I2
A28
A/C CONTROL SW AND RADIO SWDEF FACE
CAB
AUTO
2
B
7 2 1
IQ1
17 BR
BR
BR
BR
Y±L
Y±L
TR
A1 9
A/C ROOM TEMP.
SENSOR
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204
AUTO ANTENNA
Bc1
9Bc1 24 Bc1 23 Bc1 8 C
C
D
D
M
3614 11912134
2
1
4
5
8
6
3
78 10
5
2 7
+B IG ACC ANT+B AMP+B ANTB ANTA GND
UP DOWN S VCC SIG SGND
L±YY
R±G
BR
R±W L±B
L±GW±B
IC
SENSOR +
± P±G
P±L
Y±R
L±W
W±B
W±B
8
9
10 4
P±L
P±G
L±Y
B±R
GR
P±GP±L
Y±R
L±W
P±G
P±L
Y±R
L±W
RADIO AND TAPE RLAYER
AUTO ANTENNA MOTOR AND RELAY A3 2
B
G
R
L
B±Y
FROM POWER SOURCE SYSTEM
(
SEE PAGE 56 )
12 1 2
3
AUTO ANTENNA CONTROL RELAY
AUTO ANTENNA MOTOR
BM
2
7
1C
61E 10 C
3
A 3
A 8
A 1
B
10
B4
BV1
7
BV1
18
BV1
4
BV1
19
Bc1
10
Bc2
1 IE 1
2
IG2
3
IQ2
11
BV2
7 BV1 2IQ1
3
I31
L±Y
L±Y
L±Y
L±Y
L±Y
GR
GR
GR
GR
GR
GR R2 ,R4 ,R5
D
BAC
(
W/ CD PLAYER )
( W/O CD PLAYER )
8
A
B
A32
20A
RADIO
NO. 1 15A
ECU±IG
7. 5A
RADIO
NO. 2 GR
( W/O CD PLAYER )
( W/ CD PLAYER )
GR
( W/ CD PLAYER )
(W/O CD PLAYER )
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218COMBINATION METER
1E
81E 13
1E
12 1H 12
1J
1
3D
23A 3
3D
13D 11
1E
4
1G
9
1K
12
1E18 3D
13 3A
4
IG1
8BU1 4BU110 BU1 3
IG3
1 IK1
8
IK1
9IK2 24
IJ 1
5 1
IF BK
A
14 A 11 C 1
A
15 A 10 B 6A 8C8C 7C 9
C
21 C 22
132
L±R
FROM POWER SOURCE SYSTEM
(
SEE PAGE 56 )
4
Y
W±B W±B
B±O
W±R
YYY
Y±G Y±G Y±G Y±G B±Y
R
Y±B
B±W B±Y
B
Y±G
BR±B
BR
Y±G
B
B±Y
B±W Y±B
W±B B±Y
B±Y
W±B W±B
10A
GAUGE
15A
ECU±B
7. 5A
IGN
FUEL SENDER
IGNITER NO. 1 WATER TEMP.
SENDER
A
1A 2A 3
B
1 COMBINATION METER
TO CENTE R AIRB AG
SENSOR ASSEMBLY
TA CH
C12 , C1 3 , C 14
F1 7 ,
F18
I2 W3
ABC
B A SPEED SENSOR NO. 1
CHARGE
AIRBAG
HIGH BEAM
FUEL
FUEL
WATER. TEMP TACHO
S3
VCC OUT GND
2
B
7
R±W
15A
HEAD (
RH )
( FOR USA )
HEAD
( RH±LWR )
( FOR
CA NADA )
3B
2
B±Y
B±Y
TO CHECK CONNECTOR
( E/G )
3E
10
B±Y
TO CHECK CONNECTOR
( RM )
IK1
23
R
(
CANADA )
(USA )
TO DIMMER SW
[COMB. SW] R±W
IG1
9
IG1+ R
L±R
IK1
7
2 L
ALTERNAOR BR
IE1
12
R±W
IJ1
10
A1 0
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220
COMBINATION METER*1 : W/ TRACTION CONTROL
* 2 : W/O TRACTION CONTROL
2
1
3D
4 3A
6 1E
11
1B5
IK1
12 IK1 11 IK1 13 IK114
IK2
10
OPEN DOOR
RE AR LIGHT
BRAKE
ECT POWER P
R
N
D
C
11 A
17
C
12 A 1A2A 3A4
A
12 B 8
1 2
2 1
EA
10A
DOME
G±O
W±B
W±B
RR
R
G±O
B
GR
R±B
L
G±W
G±W L
R±B
GR
V±R
R±W
V±R
R±W
B
W±B R±W FROM
NEUTRAL START SW
(
A/T )
CLUTCH S TART SW (
M/T )
FROM A/T INDICATOR SW
FROM POWER SOURCE SYSTEM
(
SEE PAGE 56 )
DIODE
(
FOR PARKING
BRAKE )
PARKING
BRAKE SW
COMBINATION METER
P3 D2
C12
,C13 , C1 4
ABC
2
B
4
G±O
FROM ECT PATTERN
SELECT SW
COOLANT LEVEL
TO INTEGRATION
RELAY
BU1
9 B
11
TO LIGHT FAILURE
SENSOR V±G V±G
V±R IE1
1
IG1 20
A
13
R±WI7
I4
2 1
B
DIODE
(
FOR B RAK E
FLUID LEVEL SW )
D1
IG1
19
3E
2
3C
2
R±W
1BRAKE FLUID
LEVEL SW B1 (*2 ) B
IK2
23
R±W R±W
R±W R±W
( CANADA )
(
USA )
R±W
R±W
( USA )
B
(CA NADA )
( *1 )
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26
ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
A 1 A/C Ambient Temp. Sensor E 1 ECT Solenoid
A 2 A/C Lock Sensor and A/C Magnetic Clutch E 2 EFI Water Temp. Sensor
A 3 A/C High Pressure SW E 3 EGR Gas Temp. Sensor (for USA Spec.)
A 4 ABS Actuator E 5 Engine Hood Courtesy SW
A 5 ABS Actuator (w/ Traction Control) E 6 Engine Oil Level Warning SW
A 6 ABS Actuator (w/ Traction Control)
A 7 ABS Speed Sensor Front LH F 1 Front Airbag Sensor LH
A 8 ABS Speed Sensor Front RH F 2 Front Airbag Sensor RH
A 9 Air Flow Meter F 3 Front Clearance Light LH
A 10 Alternator F 4 Front Clearance Light RH
A 11 Alternator F 5Front Side Marker Light LH
A 33 ABS Actuator (w/o Traction Control) F 6 Front Side Marker Light RH F 7 Front Turn Signal Light LH
B 1 Brake Fluid Level SW F 8 Front Turn Signal Light RH
B 6 Back±Up Light SW (for M/T) F 9 Fuse Block
C 3 Check Connector H 1 Headlight Hi LH
C 6 Cornering Light LH H 2 Headlight Hi RH
C 7 Cornering Light RH H 3 Headlight Lo LH
C 8 Cruise Control Actuator H 4 Headlight Lo RH H 5 Horn LH
D 13 Distributor H 6 Horn RH
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27
Position of Parts in Engine Compartment
I 1 ISC Valve S 3Speed Sensor No. 1
I 2 Igniter S 4 Speed Sensor No. 2 (for ECT)
I 4 Ignition Coil S 6 Starter
I 6 Injector No. 1 S 7 Starter
I 7 Injector No. 2 S 8 Sub Throttle Actuator
I 8 Injector No. 3 S 9 Sub Throttle Position Sensor
I 9 Injector No. 4
I 10 Injector No. 5 T 1 Theft Deterrent Horn
I 11 Injector No. 6 T 2 Throttle Position Sensor T 3 Traction Brake Actuator
K 1 Knock Sensor No. 1 (on Front Side) T 4 Traction Brake Actuator
K 2 Knock Sensor No. 2 (on Rear Side) T 5 Traction pump and Motor
N 1 Neutral Start SW, Back±Up Light SW and A/T Indicator SW V 1 VSV (for EGR) (Exc. USA Spec) (for A/T) V 2 VSV (for EVAP)
N 2 Noise Filter (for Defogger System) V 4 VSV (for Water Valve)
N 3 Noise Filter (for Ignition System) V 7 VSV (for Intake Control Valve)
O 2 Oil Pressure SW W 1 Washer Level SW
O 3 Oxygen Sensor Main No. 1 (on Front Side) W 2 Washer Motor
O 4 Oxygen Sensor Main No. 2 (on Rear Side) W 3 Water Temp. Sender W 5 Wiper Motor
P 1 PPS Solenoid
P 20 Power Steering Pressure SW
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28
ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
A 12 A/C Control Assembly C 9 CD Player
A 13 A/C Control Assembly C 10 Center Airbag Sensor Assembly
A 14 A/C Control Assembly C 11 Cigarette Lighter
A 15 A/C Control SW and Radio SW C 12 Combination Meter
A 16 A/C Evaporator Temp. Sensor C 13 Combination Meter
A 17 A/C Power Transistor C 14Combination Meter
A 18 A/C Power Transistor C 15 Combination SW
A 19 A/C Room Temp. Sensor C 16 Combination SW
A 20 A/C Solar Sensor C 17 Combination SW
A 21 A/T Indicator Light (for Shift Lever) C 19 Cruise Control ECU
A 22 ABS ECU (for M/T, w/o Traction Control) C 23 Clutch Start SW
A 23 ABS ECU (for M/T, w/o Traction Control) C 24 Cruise Control Clutch SW
A 24 ABS and Traction ECU
A 25 ABS and Traction ECU D 1 Diode (for Brake Fluid Level)
A 26 ABS and Traction ECU D 2 Diode (for Parking Brake)
A 27 Air Mix Control Servo Motor D 3 Diode (for Tension Reduser)
A 28 Air Vent Mode Control Servo Motor
A 29 Airbag Squib E 8 ECT Pattern Select SW
A 33 Air Inlet Control Servo Motor E 9 Engine and ECT ECU (for A/T) E 10 Engine and ECT ECU (for A/T)
B 2 Blower Motor E 11 Engine ECU (for M/T)
B 3 Blower Resistor (for Low Speed) E 12 Engine ECU (for M/T)
F 10 Fuel Lid Opener SW
G 1 Glove Box Light
G 2 Glove Box Light SW
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