1991 LEXUS SC300 radiator

(c) Pull the cable from front wheel housing to remove it.
INSTALLATION OF HOOD LOCK
CONTROL
(See page BO±24)
1. BEFORE INSTALLING PARTS, COAT LOCK WITH MP GREASE
Apply MP grease to the sliding surface of the lock.
2. INSTALL HOOD LOCK CONTROL CABLE (a) Push the rear side cable through the grommet.
(b) Using the screwdriver, push the cable stopper into thegrommet.
HINT: Do not damage the grommet with the screwdriver.
(c) Clamp the cable to the junction block.
(d) Pass the front side cable through the upper radiator
support.
3. INSTALL HOOD RELEASE LEVER
4. INSTALL HOOD LOCK TEMPORARILY
5. CHECK HOOD LOCK CONTROL FOR PROPER OPERATION
After checking for proper operation, tighten the nut and two
bolts to install the lock.
6. INSTALL FOLLOWING PARTS: (a) Hood release lever
(b) Fender splash shield
(c) LH fender liner
(d) LH front fender wheel opening moulding
(e) Front bumper
BO±26
±
BODY Hood (Hood Lock Control)
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( Coolant Level Warning Switch)
REMOVAL AND INSTALLATION OF COOLANT
LEVEL WARNING SWITCH
1. REMOVE COOLANT LEVEL WARNING SWITCH(a) Disconnect the connector.
(b) Remove the boot.
(c) Using the notches in the head of switch, turn the switchcounterclockwise and remove it.
NOTICE: Do not remove when engine is hot.
2. INSTALL COOLANT LEVEL WARNING SWITCH For installation, follow the removal procedure in reverse.
INSPECTION OF COOLANT LEVEL WARNING
SWITCH
1. INSPECT COOLANT LEVEL WARNING SWITCH(Continuity)
(a) Remove the radiator cap and open the radiator drainclock.
NOTICE: Do not remove when engine is hot.
(b) Drain the coolant about 1 liter. (1.1 US qts, 0.9 lmp. qts)
(c) Check that there is continuity between terminals (float down).
(d) Close radiator drain cock and fill the cooling system with
coolant.
(e) Check that there is no continuity between terminals (float up).
If continuity is not as specified, replace the switch.
2. INSPECT COOLANT LEVEL WARNING LIGHT (a) Disconnect the connector from the coolant level warning
switch and ground terminal 1 on the wire harness side
connector.
(b) Start the engine, check that the warning light lights up.
If the warning light does not light up, inspect the bulb or wire
harness.
±
BODY ELECTRICAL SYSTEM Combination MeterBE±117
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Description
The power source supplies power to each of the vehicle's electrical devices. It is composed of the battery, fuses
and relays, which are located centrally at relay block No. 2 and relay block No. 6 i\
n the engine compartment
and junction block No. 1 relay block No. 4 and relay block No. 5 in the \
cabin near the driver's feet.
Related systems for each Fuse
No.Part NameRelated Systems or Parts
1IGN
Charging System
AIR±BAG System1IGN
Engine
2ST
Starter
3WIPER
Wiper and Washer System
4HTR
Defogger System
A/C System
5ENGINE
Charging System
6RADIO NO. 2
Audio System
Power Mirror System

Cigarette Lighter
A/C System
7CIG
Combination Meter System
AIR±BAG System7CIG
Shift Lock System
Theft Deterrent System

TEL System
8STOP
Stop Light System
Cruise Control System
9TURN
Turn Signal and Hazard
Warning Light System
Cornnering Light System
10MIR HTR
Mirror Heater System
11PANEL
Illumination Light System
12ECU±B
Combination Meter System
AIR±BAG System

Combination Meter System
ECT System
13GAUGE
Back±Up Light
Transmission Indicator

Light Failare Sensor
ABS and TRAC

Power Seat System
Door Lock Control System

TEL System
Shift Lock System
14ECU±IG
Radiator Fan
Auto Antenna

Electric Tension Reducer System
Power Steering

Auto±Tilt away Steering
Cruise Control System
15TAIL
Taillight System
Side Marker15TAIL
Clearance Light
16DOOR
Power Seat System
Luggage Door Opener16DOOR
Door Lock Control System
Fuel Lid Opener System
17IG SWUpstream of ECU±IG, ENGINE, WIP, HTR, TURN, GAUGE, and ST Fuse
18PWR
Power Window System
Sliding Roof System
19ABS NO. 1
ABS and TRAC
20AM1Upstream of MIR HTR, TAIL, PANEL, STOP, ECUA±B, DOOR and PWR Fuse
21ALTUpstream of DEF, HTR, AM1, and ABS No. 1 Fuse
BE±18±
BODY ELECTRICAL SYSTEM Power Source
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Parts NameFunction
Coolant Level
Warning SwitchThis switch is installed in the radiator reservoir tank. It lights up a \
warning light when the
coolant level becomes low.
Engine Oil Level
Warning SwitchThis switch is mounted in the engine oil pan. It lights a warning light \
when the engine oil
level is low.
Brake Fluid Level
Warning SwitchThis switch is mounted in the brake master cylinder reservoir tank. It l\
ights up a warning
light when the brake fluid level is low.
Parking Brake SwitchThis switch is on the parking brake lever bracket. Continuity in this sw\
itch is established
when the lever is released, causing a warning light to light up.
Door Courtesy SwitchContinuity is established in this switch when a door is opened, causing \
a warning light to
light up.
Warning LightsWhen an abnormality is detected in the vehicle, current is sent to these\
lights, or they are
grounded, causing them to light up.
Indicator LightsCurrent is sent to these lights, or they are grounded, causing them to l\
ight up and indicate
the vehicle's condition to the driver.
Window Washer Level
Warning SwitchThis switch is mounted in the window washer tank. It lights a warning li\
ght when the
window washer level becomes low.
±
BODY ELECTRICAL SYSTEM Cominbation MeterBE±97
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Front Door Trim Upper Panel (ABS/PVC)
Battery Insulator (PE) Roof Side Inner Garnish (ABS/PVC)
Front Pillar Garnish (ABS/PVC)
Speed Control Actuator Cover (PP)
Radiator Reserver Tank (PP)
Radiator Cover Plate (PP) Cool Air Intake
Duct (PP)
Spare Wheel Cover (PP)
Washer Jar (PP)
Junction Block Cover (PP)
Front Fender Liner (PE)
Front Fender Splash Shield (PE)
Engine Under Cover (PE) Engine Under Cover (PE)
Engine Under Cover (PP/PE)
HINT:
wResin material differs with model.
/ Made up of 2 or more kinds of materials.
PLASTIC BODY PARTSPP-5
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RADIATOR UPPER SUPPORT (ASSY)
REMOVAL
BODY PANEL REPLACEMENTRE-2
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FRONT FENDER FRONT APRON (ASSY)
REMOVAL (With the radiator upper support removed.)
Apron Fender Side Extension
1. Replace the apron fender side extension at thesame time.
BODY PANEL REPLACEMENTRE-6
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FRONT FENDER APRON (ASSY)
REMOVAL (With the radiator upper support removed.)
BODY PANEL REPLACEMENTRE-10
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