engine oil LEXUS SC400 1991 Service Repair Manual

45
Light Control
SW
ABS and
Traction ECU
Diode
Theft Deterrent
and Door Lock ECU
Integration
Relay Noise Filter
(for Ignition
System
Injector No. 3
Injector No. 4 Igniter
7.5 ST 15A SEAT±HTR Ignition Coil
Injector No. 1
Injector No. 2
Injector No. 5
Injector No. 6
ABS
Actuator
7.5A ENGINE
15A ECU±IG
10A GAUGE 20A WIPER 20A TURN 10A HEATER 7.5A RADIO No.2
15A CIG
(4): R/B No. 6 (See page )(5): Fuse Block (F9 See page 19 )
24 19
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47
216182
216
178
216
129 104 144 10260
90
216 62
68
11 2
148
104
111 200 148 148 190
D1
C16 C24
C15 C19 C23 C22
C12
C13
C14C14
C13
C12
Airbag W arning Light
Charge Warning Light
Dimmer SW [Comb. SW]Cruise Control Indicator Light
[Comb. Meter]A/T Indicator Light
[Comb. Meter]
Combination Meter
Rear Lights Warning Light Turn Signal Indicator Light
[Comb. Meter] High Beam Indicator Light
[Comb. Meter]
Check Engine Warning Light
Open Door Warning Light
Traction Indicator Light
ABS Warning Light
[Comb. Meter] Seat Belt Warning LightABS Warning Light and T raction
Off Indicator Light [Comb. Meter]
Coolant Level Warning LightCruise Control ECU Turn Signal SW
[Comb. SW]
Wiper and Washer SW
[Comb. SW]
Choke Coil
Crutch Start SW
Cruise Control Clutch SW
Diode (for Brake Fluid Level)Light Control SW
[Comb. SW] Horn SW [Comb. SW]Combination MeterCornering Light SW
[Comb. SW]
C12 80
82
216
216 216 98
86
216134
216
216 216 184
216
80
90
102 80
90
102
68
94
134
148
216
(4)
: R/B No. 5 (See page ) 22
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POWER SOURCE (Current Flow Chart)*1: USA
*2: CANADA
D2 D3F14
D5
D4 D6 E6 D10 E1 E11 F8 F10 F4 F6
E12
E10 F7 F3
94 126
68
126
90
126
11 2
216 68 68
126
136
226
104
86
107
D11 F5 E9
E8
Engine Oil Level W arning SW
Diode
(for Parking Brake)
Diode
(for Tension Reducer)
Door Courtesy Light LHDoor Lock Motor, Door Unlock Detection
SW and Door Open Detection SW LHDay/Night Shift SWECT SolenoidECT Pattern Select SW
Engine and ECT ECU
Front Turn Signal Light RH
Fuel Lid Opener SW
Fuel Lid Opener Solenoid
*Page Nos. of
Related Systems
Parts
Code or
Location
CB or Fuse
50A DEFOG
30A DOOR
30A POWER
15A STOP
15A ECU±B
10A MIR±HTR
10A HEATER
20A TURN
20A WIPER
10A GAUGE
15A ECU±IG
7.5A ENGINE
7.5A IGN
15A CIG
7.5A RADIO No.2
15A TAIL
7.5A PANEL
7.5A ST
15A TEL
10A DOME
20A RADIO No.1
25A HAZ±HORN
30A EFI
7.5A ALT SENCING
15A HEAD LH*1
15A HEAD RH*1
15A HEAD LH±LWR*2
15A HEAD RH±LWR*2
15A HEAD LH±UPR
15A HEAD RH±UPR
60A HEATER
7.5A TRAC
15A SEAT±HTR
Location
Door Courtesy Light RH
Door Lock Motor, Door Unlock Detection
SW and Door Open Detection SW RHEngine ECU
Front Turn Signal Light LH Front Side Marker Light RH Front Side Marker Light LH Front Clearance Light RH Front Clearance Light LH
192
216


* These are the page numbers of the first page on which the related system\
is shown.
The part indicated is located somewhere in the system, not necessarily o\
n the page indicated here.
[LOCATION](1): J/B No. 1 (See page 20)(2): R/B No. 2 (See page 19)(3): R/B No. 4 (See page 23)
20
19 22
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50
POWER SOURCE (Current Flow Chart)*1: USA
*2: CANADA
P18
P11
N2 N4 O2 P2 O8 P4 P6 R5 R4 P20
P14
226
154
192
154
190 68 154 90
202
202
P8
P7
184 94
O5 P5 P3
Parking Brake SW
Power Window Motor RH Power Window Motor LHOil Pressure SW
Power Seat Control SW
(for Driver's Seat)
Power Seat Control SW
(for Passenger's Seat)Power Seat ECU (Passenger's)Oxygen Sensor Sub
(for California)Power Seat Motor (for Driver's
Lumbar Support Control)O/D Main SW
Radio and Player Personal LightRadio and Player (w/ CD Player)Noise Filter
(for A/C System)Power Seat Motor (for Passenger's
Reclining Control)PPS ECU
Power Window Control SW RH
Power Window Master SW and
Door Lock Control SW LH
*Page Nos. of
Related Systems Parts
Code or
Location
CB or Fuse
50A DEFOG
30A DOOR
30A POWER
15A STOP
15A ECU±B
10A MIR±HTR
10A HEATER
20A TURN
20A WIPER
10A GAUGE
15A ECU±IG
7.5A ENGINE
7.5A IGN
15A CIG
7.5A RADIO No.2
15A TAIL
7.5A PANEL
7.5A ST
15A TEL
10A DOME
20A RADIO No.1
25A HAZ±HORN
30A EFI
7.5A ALT SENCING
15A HEAD LH*1
15A HEAD RH*1
15A HEAD LH±LWR*2
15A HEAD RH±LWR*2
15A HEAD LH±UPR
15A HEAD RH±UPR
60A HEATER
7.5A TRAC
15A SEAT±HTR
LocationP9 P12 P10 R2
Power Seat ECU (Driver's)Noise Filter
(for Defogger System)
216 126 216 208
122


* These are the page numbers of the first page on which the related system\
is shown.
The part indicated is located somewhere in the system, not necessarily o\
n the page indicated here.
[LOCATION](1): J/B No. 1 (See page 20)(2): R/B No. 2 (See page 19)(3): R/B No. 4 (See page 23)
20
19 22
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63
E18E14
E20
2 1
ED
W± L
B
B±O
B
W± B B±OB±O
B±O
BB
B± O
TO COMBINATION
METER
(
TACHO )12
DISTRIBTOR
IGNITION COIL
I4
D13
IG± TAC +B
IGF IGT C±
IGNITER
CHECK
CONNECTOR
C3 I2
435
19
12
STA IGF IGT
77 58 57
ENGINE AND ECT ECU (
A/T )
E10
NOISE FILTER
(
FOR IGNITION SYSTEM )
N31234
27 26 25 7 NE G1 G2 G± NE G1 G2 G±
L
R Y
B
W±Y
R±Y
ENGINE ECU
(
M/T )
E12
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