ignition LEXUS SC300 1991 Service Repair Manual

LEXUS SC300 1991 Service Repair Manual SC300 1991 LEXUS LEXUS https://www.carmanualsonline.info/img/36/57052/w960_57052-0.png LEXUS SC300 1991 Service Repair Manual

Page 3903 of 4087

LEXUS SC300 1991  Service Repair Manual 
68
ENGINE CONTROL
1 2
1
2
1
2
1
2
1
2
1
2 1J
6
1J
7
1B
4 1K
4
6 13
14
9
7
4 IE1
16
B±R
W
B±Y L±R B
Y
W
W±RW±L
W W±R
W± R
B±O
B±O
B±O
B±O
B±O B±O W
W±R
Y
B
L±R
B±Y W
B±R
B± W
W
B±O

Page 3905 of 4087

LEXUS SC300 1991  Service Repair Manual 
70
ENGINE CONTROL
I22E18
E17
A
2
SP1 A
33
BATT B
76
NSW A
32
+B1 A
31
+B
A
6 W
A
4 STP
B
77 STA
B
20 #10
B
18 #30
B
15 #60
B
19 #20
B
58 IGF
B
57 IGT
A
1
IGSW
B
3
A
10
A
1A 15 A13 A 14
54
12
IJ2
11
E

Page 3909 of 4087

LEXUS SC300 1991  Service Repair Manual 
74
ENGINE CONTROL
EFI MAIN RELAY2 ± 4: CLOSED WITH IGNITION SW AT  ON OR  ST POSITION
W 4  WATER TEMP. SENSOR
1 ± 2: APPROX.  16.2K  (±20 °C,  ±4°F)
: APPROX.  2.45K  (20 °C,  68°F)
: APPRO

Page 3915 of 4087

LEXUS SC300 1991  Service Repair Manual 
195
B 4  BUCKLE SW LH
1±2 : CLOSED WITH DRIVERS LAP BELT IN USE
B 5  BUCKLE SW RH
1±2 : CLOSED WITH PASSENGERS LAP BELT IN USE
T18, T19  TENSION REDUCER SOLENOID LH, RH
2±GROUND : APPROX.  12 VO

Page 3917 of 4087

LEXUS SC300 1991  Service Repair Manual 
METER, ANALOGCurrent flow activates a magnetic
coil which causes a needle to
move, thereby providing a relative
display against a background
calibration.
LED (LIGHT EMITTING DIODE)
Upon current flow,

Page 3918 of 4087

LEXUS SC300 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 SC300 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 SC300 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 3931 of 4087

LEXUS SC300 1991  Service Repair Manual 
Q
R
S
T
U
V
W
X
6
HOW TO USE THIS MANUAL
WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS TO TERMINAL 3 OF THE POWER\
 WINDOW MASTER SW, TERMINAL 2 OF THE POWER WINDOW CONTROL RELAY
AND TERMINAL 8 O

Page 3940 of 4087

LEXUS SC300 1991  Service Repair Manual 
95
B2I15
B2
B1 3A
6
3D
4
2 1 2
1 2
12
12
1
2 1
2
1
3
ON
DOOR
BX1
4
IP 1
17
Bc1
25
1
R
R
R
R
R
R±W
BR±W W±B
R±W
R±W
R±W
R
R
R
R
R
R
R
R
R
R
R
R R
R
R±W
R±W R±W R±W W±B W±B
BR±W
R±W R±W