LEXUS SC300 1999 Owners Manual

CHASSIS
373
SUSPENSION AND CHASSIS
CAUTION
Do not modify the suspension/chassis with lift kits, spacers,
springs, etc. It can cause dangerous handling characteristics,
resulting in loss of control.

SECTION 6 ± 4
374
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
.
374
Checking battery condition. . . . . . . . . . . . . . . . . . . . . . . . . . .
380
Battery recharging precautions . . . . . . . . . . . . . . . . . . . . . . . .
386
Checking and replacing the blade type fuses . . . . . . . . . . . . .
388
Checking the cartridge type fuses . . . . . . . . . . . . . . . . . . . . . .
393
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
396
Checking the headlight aim . . . . . . . . . . . . . . . . . . . . . . . . . .
396
Replacing light bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
399
SPECIFICATIONS
±LOCATION OF FUSES

ELECTRICAL COMPONENTS
375

ELECTRICAL COMPONENTS
376± FUSES
Driver's side kick panel

Engine compartment
ELECTRICAL COMPONENTS
377
No.FUSEAMPERECIRCUIT
1ENGINE7.5Charging system
2HTR10Air conditioning system, rear
window defogger
3WIPER20Windshield wipers and washer
4ST7.5
Starting system, cruise control
system, multiport fuel injection
system/sequential multiport fuel
injection system, instrument panel
lights
5IGN7.5
Discharge warning light, multiport
fuel injection system/sequential
multiport fuel injection system,
SRS airbag system
6PANEL7.5Instrument panel lights, glovebox
light
7MIR±HTR10Outside rear view mirror defogger
8TURN7.5Turn signal lights
9STOP15Stop lights, cruise control system
cancel device
10CIG15
Cigarette lighter, theft deterrent
system, shift lock system, SRS
airbag system, instrument panel
lights

ELECTRICAL COMPONENTS
378
No.FUSEAMPERECIRCUIT
11RADIONO.27.5Radio, cassette tape player,
compact disc player, power
antenna, power rear view mirrors
12TAIL7.5Tail lights, parking lights, side
marker lights, license plate lights
13ECU±IG15
Cruise control system, power
steering control system, shift lock
system, anti±lock brake system,
SRS airbag system, power door
lock system, preset steering system,
traction control system,
electronically controlled
hydraulic±driven cooling system,
passenger 's seat control system
14GAUGE10
Gauges and meters, service
reminder indicators and warning
buzzers (except discharge and open
door warning lights), back±up
lights, electronically controlled
automatic transmission system,
automatic transmission overdrive
system, headlight
15ECU±B15SRS airbag system, power rear
view mirrors
16OBD7.5On±board diagnosis system
17FOG15Fog lights
18SEAT±HT R15Seat heater

ELECTRICAL COMPONENTS
379
No.FUSEAMPERECIRCUIT
19PWR30Preset steering, electronic
moon roof, power windows,
theft deterrent system
20IG SW40Starting system
21DOOR30
Theft deterrent system, seat
control system, fuel opener
control system, power door
lock system
22DOME10
Interior light, personal lights,
door courtesy lights, ignition
switch light, open door
warning light, trunk light,
electronic moon roof system,
preset steering system, seat
belt reminder system, cruise
control system, air
conditioning system, inside
rear view mirror, door lock
and theft deterrent system,
foot light, power rear view
mirror, locking with wireless
remote control system,
passenger 's seat control
system.
23EFI30Multiport fuel injection
system/sequential multiport
fuel injection system
24HAZ±HORN15Emergency flashers, horns
No.FUSEAMPERECIRCUIT
25RADIONO.120Radio, cassette tape player,
compact disc player, power
antenna
26TEL15Telephone
27ALT
SENCING7.5Charging system
28ETCS15Traction control system
29HEAD(RH±LWR)*115Right±hand headlight (low
beam)
30HEAD(LH±LWR)*215Left±hand headlight (low
beam)
30DRL7.5Daytime Running Light
System
29HEAD(RH±LPR)15Right±hand headlight (high
beam)
30HEAD(LH±LPR)15Left±hand headlight (high
beam)
31INJ30SC300
Starting system
*1 SC300: HEAD (RH)
*2 SC300: HEAD (LH)

ELECTRICAL COMPONENTS
380
CHECKING BATTERYCONDITION
Precautions
CAUTION
BATTERY PRECAUTIONS
The battery produces flammable and explosive hydrogen gas.

Do not cause a spark by contacting the battery terminals
with tools.

Do not smoke or light a match near the battery.
The electrolyte contains poisonous and corrosive sulfuric acid.

Avoid contact with eyes, skin or clothes.

Never inhale or swallow electrolyte.

Wear protective safety glasses when working near the
battery.

Keep children away from the battery.
EMERGENCY MEASURES

If electrolyte gets in your eyes, flush your eyes with clean
water for at least 15 minutes and get immediate medical
attention. If possible, continue to apply water with a sponge
or cloth while traveling to the medical office.

ELECTRICAL COMPONENTS
381

If electrolyte gets on your skin, thoroughly wash the
contact area. If you feel a pain or burn, get medical
attention immediately.

If electrolyte gets on your clothes, there is a
possibility of its soaking through to your skin, so
immediately take off the exposed clothing and follow
the procedure above, if necessary.

If you happen to swallow electrolyte, drink a large
quantity of water or milk. Follow with milk of
magnesia, beaten raw egg or vegetable oil. Then go
immediately for emergency help.Checking battery exterior

ELECTRICAL COMPONENTS
382
Check the battery for corroded or loose connections,
cracks, or loose hold±down clamps.
1. If the battery is corroded, wash it off with a solution of
warm water and baking soda. Coat the terminals with grease
to prevent further corrosion.
2. If the connections are loose, tighten the clamp bolts ±but
do not overtighten.
3. Tighten the hold±down clamp only enough to keep the
battery firmly in place. Overtightening may damage the
battery case.NOTICE

Make sure the engine and all accessories are turned
off before performing maintenance.

When checking the battery, remove the ground cable
first and reinstall it last.

Be careful not to cause a short circuit with tools.

Take care no solution gets into the battery when
washing it.