1991 LEXUS SC400 sensor

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Page 3918 of 4087

LEXUS SC400 1991  Service Repair Manual 
17
1. NORMALLYOPENOpens and
closes circuits,
thereby
stopping (1) or
allowing (2)
current flow.
RESISTOR An electrical component with a
fixed resistance, placed in a circuit
to reduce voltage to a sp

Page 3919 of 4087

LEXUS SC400 1991  Service Repair Manual 
236
GROUND POINT
FRONT TURN SIGNAL
LIGHT LH
ENGINE HOOD
COURTESY SW
TRACTION PUMP AND
MOTOR
HEATER RELAY
ABS ACTUATOR RELAY
TELEPHONE
TRANSCEIVER
AND SPEAKER RELAY
ENGINE OIL LEVEL
WARNING SW
COMBINA

Page 3920 of 4087

LEXUS SC400 1991  Service Repair Manual 
237
GLOVE BOX LIGHT SW
CIGARETTE LIGHTER
LUGGAGE COMPARTMENT
DOOR OPENER SW
COMBINATION METER
(EP )
O/D MAIN SW
RHEOSTAT
DO OR LOCK MOTOR,
DOOR UNLOCK
DETECTION SW AND
DOOR OPEN DETECTION
SW LH
MIRRO

Page 3922 of 4087

LEXUS SC400 1991  Service Repair Manual 
239
*2 : W/O DRIVING POSITION MEMORY
* 1 : W/ DRIVING POSITION MEMORY
TILT AND POWER
TELESCOPIC
ECU
(
ECUE )
RECLINING POS ITIO N
SENSOR
[POWER SEAT MOTOR]
SLIDE P OSITION
SENSOR LH
POWER SEAT
CONTRO

Page 3956 of 4087

LEXUS SC400 1991  Service Repair Manual 
567 8
EB1
EC ED D DCCCCD
CCCC
C IJ2 IJ2
IG2
EB1
C D C DC C CCC
DDCDDDDDCCCCC
ED
1 2
1
2 23
1 23
14
4 234 51
25
1346
2
B±O
B±W B±OB±Y
B± R
B± R
W
R± LBR
B± R B±Y W
L±R
B±Y LG
GR±Y B Y B
G

Page 3957 of 4087

LEXUS SC400 1991  Service Repair Manual 
OVERALL ELECTRICAL WIRING DIAGRAM
1234
3 LEXUS SC300 (
Cont . ne xt pa ge )
4 ACC
IG1
ST1
IG2
AM1 2
6
11 AM2
1J
7 21J
3
2
2
1B
4
2221I
5
EB1 EB2 4 EB1 11 IJ2 3 IJ2
16 IE1
9BS2
B
S1
B
OD1
8BS3
80 BEO1

Page 3960 of 4087

LEXUS SC400 1991  Service Repair Manual 
567 8
4LEXUSSC300(
Cont  d )
1
2
1
2 1D
11 E 1I
10
3G
1
1B
2
3A
9
1C
10
1E
20
1H
1
9BU1
1Bd15IG7
11 Bc 1
Be1 2 1
1
2
3A
10
1 2
3 84
921117
3G
83A 2
3A
1
2
12
1
1
4
1
2 1
2
EA BM BL 2Bd14
1
3
8
2 10

Page 3962 of 4087

LEXUS SC400 1991  Service Repair Manual 
567 8
5LEXUSSC300(
Cont  d )
1
2
1
2 1D
11 E 1I
10
3G
1
1B
2
3A
9
1C
10
1E
20
1H
1
9BU1
1Bd15IG7
11 Bc 1
Bc1 2 1
1 2
3A
10
1 2
3 84
921117
3G
83A 2
3A
1
2
12
1
1
4
1
2 1
2
EA BM BL 2Bd14
1
3
8
2 3
3