Lexus SC300 2000, SC400 2000, SC430 2000 Owner Manual

SECTION 6 –

SERVICE PROCEDURES AND SPECIFICATIONS

Chassis

Specifications (SC400) 231. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications (SC300) 233. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking brake fluid 235. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking power steering fluid 236. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking tire pressure 237. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rotating tires 238. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking and replacing tires 239. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing snow tires and chains 241. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing wheels 242. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Aluminum wheel precautions 243. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Suspension and chassis 243. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

230

SPECIFICATIONS (SC400)

– AUTOMATIC TRANSMISSION

Fluid capacity

Drain and refill

Fluid type

– DIFFERENTIAL

CHASSIS

2.4 L (2.5 qt., 2.1 lmp.qt.)

Automatic transmission fluid Type T–IV*

Oil capacity Oil type Oil viscosity

*Change automatic transmission fluid only as necessary. Generally, it is necessary to change automatic transmission fluid only if your vehicle is driven under one of the Special Operating Conditions listed in your “Owner’s Manual Supplement / Maintenance Schedule”. When changing the automatic transmission fluid, use only Toyota Genuine ATF Type T–IV (ATF JWS3309 or NWS6500) to aid in assuring optimum transmission performance.

1.35 L (1.42 qt., 1.19 lmp.qt.) Hypoid gear oil API GL–5 Above –18C (0F): SAE90

Below –18C (0F): SAE80W or SAE80W–90

NOTICE

Using automatic transmission fluid other than Toyota Genuine ATF T ype T–IV may cause deterioration in shift quality, locking up of your transmission accompanied by vibration, and ultimately damage the automatic transmission of your vehicle.

231

CHASSIS

– BRAKES

Pedal clearance * Pedal free play Brake pad wear limit Parking brake lining wear limit * Parking brake adjustment Fluid type

*1: Minimum pedal clearance when depressed with the pressure of 490 N (50 kgf, 110 lbf.) with the engine running

: Parking brake adjustment when pulled with the force of 196 N (20 kgf, 44 lbf.)

– STEERING

89 mm (3.5 in.) Min. 1 – 6 mm (0.04 – 0.24 in.)

1.0 mm (0.04 in.)

1.0 mm (0.04 in.) 5 – 8 clicks SAE J1703 or FMVSS No. 116 DOT 3

Free play Power steering fluid

Less than 30 mm (1.2 in.) Automatic transmission fluid DEXRON



II or III

– TIRES AND WHEELS

Tire size Tire inflation pressure

Recommended cold tire inflation pressure

Wheel size Wheel nut torque

225/55R16 94V Front 220 kPa (2.2 kgf/cm

Rear 220 kPa (2.2 kgf/cm

2 2

16 x 7 JJ or 16 x 6 1/2 JJ 103 N·m (10.5 kgf·m, 76 ft·lbf.)

or bar, 32 psi)

NOTE: For complete information on tires (e.g. replacing tires or replacing wheels), see “Checking tire pressure” through “Aluminum wheel precautions” on page 237 through 243.

232

SPECIFICATIONS (SC300)

– AUTOMATIC TRANSMISSION

Fluid capacity

Drain and refill

Fluid type

– DIFFERENTIAL

CHASSIS

1.6 L (1.7 qt., 1.4 lmp.qt.)

Automatic transmission fluid Type T–IV*

Oil capacity Oil type Oil viscosity

1.35 L (1.42 qt., 1.19 lmp.qt.) Hypoid gear oil API GL–5 Above –18C (0F): SAE90

Below –18C (0F): SAE80W or SAE80W–90

NOTICE

233

CHASSIS

– BRAKES

Pedal clearance * Pedal free play Brake pad wear limit Parking brake lining wear limit * Parking brake adjustment Fluid type

*1: Minimum pedal clearance when depressed with the pressure of 490 N (50 kgf, 110 lbf.) with the engine running

: Parking brake adjustment when pulled with the force of 196 N (20 kgf, 44 lbf.)

– STEERING

89 mm (3.5 in.) Min. 1 – 6 mm (0.04 – 0.24 in.)

1.0 mm (0.04 in.)

1.0 mm (0.04 in.) 5 – 8 clicks SAE J1703 or FMVSS No. 116 DOT 3

Free play Power steering fluid

Less than 30 mm (1.2 in.) Automatic transmission fluid DEXRON



II or III

– TIRES AND WHEELS

Tire size Tire inflation pressure

Recommended cold tire inflation pressure

Wheel size Wheel nut torque

225/55 R16 94V Front 220 kPa (2.2 kgf/cm

Rear 220 kPa (2.2 kgf/cm

1/2 JJ

16 x 6

2 2

103 N·m (10.5 kgf·m, 76 ft·lbf.)

or bar, 32 psi)

NOTE: For complete information on tires (e.g. replacing tires or replacing wheels), see “Checking tire pressure” through “Aluminum wheel precautions” on page 237 through 243.

234

CHASSIS

CHECKING BRAKE FLUID

To check the fluid level, simply look at the see–through reservoir. The level should be between the ”MAX” and ”MIN” lines on the tank.

It is normal for the brake fluid level to go down slightly as the brake pads wear. So be sure to keep the reservoir filled.

If the reservoir needs frequent refilling, it may indicate a serious mechanical problem.

If the level is low, add FMVSS No.116 DOT 3 or SAE J1703 brake fluid to the brake reservoir.

Remove and replace the reservoir cap by hand. Add brake fluid up to the ”MAX” line.

Use only newly opened brake fluid. Once opened, brake fluid absorbs moisture from the air, and excess moisture can cause a dangerous loss of braking efficiency.

CAUTION

Take care when filling the reservoir because brake fluid can harm your hands or eyes and damage painted surfaces. If flu i d gets in your hands or eyes, flush them with clean water.

NOTICE



If you spill some of the fluid, be sure to wipe it off to prevent it from damaging the parts or paintwork.



For vehicles with traction control system only: Idle the engine while pouring brake fluid into the reservoir.

235

CHASSIS

CHECKING POWER STEERING

FLUID

Check the fluid level on the dipstick. If necessary, add automatic transmission fluid DEXRON



II or III.

If the vehicle has been driven around 80 km/h (50 mph) for 20 minutes (a little more in frigid temperatures), the fluid is hot (60C – 80C or 140F – 175F). You may also check the level when the fluid is cold (about room temperature, 10C – 30C or 50F – 85F) if the engine has not been run for about five hours.

1. Clean all dirt off the reservoir.

2. Remove the reservoir cap by turning it counterclockwise and wipe the dipstick clean.

3. Reinstall the reservoir cap.

4. Remove the reservoir cap again and look at the fluid level. If the fluid is cold, the level should be in the ”COLD” range on the dipstick. Similarly, if it is hot, the fluid level should be in the ”HOT” range. If the level is at the low side of either range, add automatic transmission fluid DEXRON level within the range.



II or III to bring the

236

CHASSIS

5. After replacing the reservoir cap, visually check the steering box case, vane pump and hose connections for leaks or damage.

CAUTION

The reservoir may be hot so be careful not to burn yourself.

NOTICE



Avoid overfilling, or the power steering could be damaged.



When adding the power steering fluid, avoid spilling it. The generator under the power steering reservoir could be damaged if fluid is spilled on it.

CHECKING TIRE PRESSURE

The recommended cold tire pressures, tire size and the vehicle capacity weight are given on the label.

You should check the tire pressures every two weeks, or at least once a month. And don’t forget the spare! The pressure for the spare tire should be same with that for the standard tire. (See page 232 or 234.) Incorrect tire pressure can reduce tire life and make your vehicle less safe to drive.

Low tire pressure results in excessive wear, poor handling, reduced fuel economy, and the possibility of blowouts from overheated tires. Also, low tire pressure can cause poor sealing of the tire bead. If the tire pressure is excessively low, there is the possibility of wheel deformation and/or tire separation. So keep your tire pressures at the proper level. If a tire needs frequent refilling, have it checked by your Lexus dealer.

237

CHASSIS

High tire pressure produces a harsh ride, handling problems, excessive wear at the center of the tire tread, and a greater possibility of tire damage from road hazards.

The following instructions for checking tire pressure should be observed:

 The pressure should be checked only when the tires are

cold. If your vehicle has been parked for at least 3 hours

and has not been driven for more than 1.5 km or 1 mile since, you will get an accurate cold tire pressure reading.

 Always use a tire pressure gauge. The appearance of the

tire can be misleading. Besides, tire pressures that are even just a few pounds off can degrade handling and ride.

 Do not bleed or reduce tire pressure after driving. It is

normal for the tire pressure to be higher after driving.

 Never exceed the vehicle capacity weight. The

passengers and luggage weight should be located so that the vehicle is balanced.

 Be sure to reinstall the tire valve caps. Without the valve

caps, dirt or moisture could get into the valve core and cause air leakage. If the caps have been lost, have new ones put on as soon as possible.

ROTATING TIRES

To equalize tire wear and help extend tire life, Lexus recommends that you rotate your tires approximately every 12000 km (7500 miles). However, the most appropriate timing for tire rotation may vary according to your driving habits and road surface conditions.

The wheel assemblies must be rotated as illustrated above. When rotating tires, check for uneven wear and damage.

Abnormal wear is usually caused by incorrect tire pressure, improper wheel alignment, out–of balance wheels, or severe braking.

Before storing radial, snow or studded tires, mark the direction of rotation and be sure to install them in the same direction when using them again. Tires should be stored in a cool dry place.

238

CHASSIS

CHECKING AND REPLACING TIRES

When to replace your tires

Replace the tires when the tread wear indicators show. The location of the tread wear indicators is shown by the marks such as “TWI” or “ each tire.

The tires on your Lexus have built–in tread wear indicators to help you know when the tires need replacement. When the tread depth wears to 1.6 mm (0.06 in.) or less, the indicators will appear. If you can see the indicators in two or more adjacent grooves, the tire should be replaced.

The effectiveness of snow tires is lost if the tread wears down below 4 mm (0.16 in.).

If you have tire damage such as cuts, splits, cracks deep enough to expose the fabric, or bulges indicating internal damage, the tire should be replaced.

∆” molded on the sidewall of

If a tire often goes flat or cannot be properly repaired due to the size or location of a cut or other damage, it should be replaced. If you are not sure, consult with your Lexus dealer.

If an air loss occurs while driving, do not continue driving with a deflated tire. Driving even a short distance can damage a tire beyond repair.

Any tires which are over 6 years old must be checked by a qualified technician even if damage is not obvious.

Tires deteriorate with age even if they have never or seldom been used.

This also applies to the spare tire and tires stored for future use.

Uniform tire quality grading

This information has been prepared in accordance with regulations issued by the National Highway Traffic Safety Administration of the U.S. Department of Transportation. It provides the purchasers and/or prospective purchasers of Lexus vehicles with information on uniform tire quality grading.

Your Lexus dealer will help answer any questions you may have as you read this information.

DOT quality grades – All passenger vehicle tires must conform to Federal Safety Requirements in addition to these grades. Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: Treadwear 200 Traction AA Temperature A

239

CHASSIS

Tread wear – The treadwear grade is a comparative rating

based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and a half (1 – 1/2) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.

Traction AA, A, B, C – The traction grades, from highest to lowest, are AA, A, B and C, and they represent the tire’ s ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance.

Warning: The traction grade assigned to this tire is based on braking (straight ahead) traction tests and does not include cornering (turning) traction.

Temperature A, B, C – The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law.

Warning: The temperature grades for this tire are established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure.

Tire selection

When replacing a tire, use only the same size and construction as originally installed and with the same or greater load capacity.

Using any other size or type of tire may seriously affect handling, ride, speedometer/odometer calibration, ground clearance, and clearance between the body and tires or snow chains.

Do not mix radial, belted, or conventional tires on your vehicle.

Do not use tires or wheels other than the manufacturer’s recommended size.

It can cause dangerous handling characteristics, resulting in loss of control. If you need to change from conventional tires to radial tires or vice versa, replace them as a set.

240

CHASSIS

INSTALLING SNOW TIRES AND

CHAINS

When to use snow tires or chains

Snow tires or chains are recommended when driving on snow or ice.

On wet or dry road, conventional or radial tires provide better traction than snow or studded tires.

Snow tire selection

If you need snow tires, select the same size, construction and load capacity as the original tires on your Lexus.

Do not use tires other than stated above. Since your vehicle has radial tires as original equipment, make sure your snow tires also have radial construction. Do not install studded tires without first checking local regulations for possible restrictions.

Snow tire installation

Snow tires should be installed on all wheels.

Installing snow tires on the rear wheels only can lead to an excessive difference in road grip capability between the front and rear tires which could cause loss of vehicle control.

CAUTION

 Snow tires should be inflated as described below, but

never above the maximum cold tire pressure shown on the tire sidewall.

225/55R16 ... 220 kPa (2.2 kgf/cm

 Never drive over 120 km/h (75 mph) with any type of

snow tires.

or bar, 32 psi)

Tire chain selection

Regulations regarding the use of tire chains vary according to location or type of road. Always check the local regulations before installing chains.

Use SAE Class ”S” type radial tire chains, with the exception of radial cable chains or V–bar type chains.

Chain installation

Install the chains on the rear tires as tightly as possible. Do not use tire chains on the front tires. Retighten chains after driving 0.5 – 1.0 km (1/4 – 1/2 mile).

When installing chains on your tires, carefully follow the instructions of the chain manufacturer.

241

CHASSIS

CAUTION

 Do not exceed 50 km/h (30 mph) or the chain

manufacturer’s recommended speed limit, whichever is lower.

 Drive carefully avoiding bumps, holes, and sharp

turns, which may cause the vehicle to bounce.

 Avoid sharp turns or locked–wheel braking, as use of

chains may adversely affect vehicle handling.

REPLACING WHEELS

When to replace your wheels

If you have wheel damage such as bending, cracks or heavy corrosion, the wheel should be replaced.

If you fail to replace damaged wheels, the tire may slip off the wheel or cause loss of handling control.

Replacement with used wheels is not recommended as they may have been subjected to rough treatment or high mileage and could fail without warning. Also, bent wheels which have been straightened may have hidden structural damage and therefore should not be used. Never use an inner tube in a leaking wheel which is designed for a tubeless tire.

Wheel selection

When replacing wheels, care should be taken to ensure that they are equivalent to those removed in load capacity, diameter, rim width, and offset.

Correct replacement wheels are available at your Lexus dealer.

A wheel of a different size or type may adversely affect handling, wheel and bearing life, brake cooling, speedometer/odometer calibration, stopping ability, headlight aim, bumper height, vehicle ground clearance, and tire or snow chain clearance to the body and chassis.

242

ALUMINUM WHEEL PRECAUTIONS

 After driving your vehicle the first 1600 km (1000 miles),

check that the wheel nuts are tight.

 If you have rotated, repaired, or changed your tires, check

that the wheel nuts are still tight after driving 1600 km (1000 miles).

 When using tire chains, be careful not to damage the

aluminum wheels.

 Use only the Lexus wheel nuts and wrench designed for

your aluminum wheels.

 When balancing your wheels, use only Lexus balance

weights or equivalent and a plastic or rubber hammer.

 As with any wheel, periodically check your aluminum

wheels for damage. If damaged, replace immediately.

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.

CHASSIS

243

SECTION 7

REPORTING SAFETY DEFECTS FOR U.S. OWNERS

Reporting safety defects for U.S. owners 268. . . . . . . . . . . . . . . . . . . .

267

REPORTING SAFETY DEFECTS

FOR U.S. OWNERS

If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying Toyota Motor Sales, U.S.A., Inc. (Toll–free: 1–800–25–LEXUS).

If NHTSA receives similar complaints, it may open an investigation, and if it finds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign. However, NHTSA cannot become involved in individual problems between you, your dealer, or Toyota Motor Sales, U.S.A., Inc.

To contact NHTSA, you may either call the Auto Safety Hotline toll–free at 1–800–424–9393 (or 366–0123 in Washington.D.C. area) or write to: NHTSA, U.S. Department of Transportation, Washington. D.C. 20590. You can also obtain other information about motor vehicle safety from the Hotline.

268

SECTION 6 –

SERVICE PROCEDURES AND SPECIFICATIONS

Electrical components

Specifications 245. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking battery condition 248. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Battery recharging precautions 251. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking and replacing the blade type fuses 251. . . . . . . . . . . . . . . .

Checking the cartridge type fuses 253. . . . . . . . . . . . . . . . . . . . . . . . . .

Adding washer fluid 254. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking the headlight aim 255. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing light bulbs 256. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

244

ELECTRICAL COMPONENTS

SPECIFICATIONS

–LOCATION OF FUSES

– FUSES

Driver’s side kick panel

245

ELECTRICAL COMPONENTS

Engine compartment

No.

FUSE

ENGINE 7.5 Charging system

HTR 10

WIPER 20 Windshield wipers and washer

ST 7.5

IGN 7.5

PANEL 7.5

MIR–HTR 10

TURN 7.5 Turn signal lights

AMPERE

CIRCUIT

Air conditioning system, rear window defogger

Starting system, cruise control system, multiport fuel injection system/sequential multiport fuel injection system, instrument panel lights

Discharge warning light, multiport fuel injection system/sequential multiport fuel injection system, SRS airbag system

Instrument panel lights, glove box light

Outside rear view mirror defogger

No.

RADIO

ECU–IG 15

STOP 15

CIG 15

FUSE

NO.2

AMPERE

7.5

TAIL 7.5

Stop lights, cruise control system cancel device

Cigarette lighter, theft deterrent system, shift lock system, SRS airbag system, instrument panel lights

CIRCUIT

Radio, cassette tape player, compact disc player, power antenna, power rear view mirrors

Tail lights, parking lights, side marker lights, license plate lights

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

246

ELECTRICAL COMPONENTS

GAUGE 10

ECU–B 15

16 17 18

No.

OBD 7.5 On–board diagnosis system FOG 15 Fog lights

SEAT–HTR 15 Seat heater

FUSE

AMPERE

PWR 30

IG SW 40 Starting system

DOOR 30

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

SRS airbag system, power rear view mirrors

CIRCUIT

Preset steering, electronic moon roof, power windows, theft deterrent system

Theft deterrent system, seat control system, fuel opener control system, power door lock system

DOME 10

24 HAZ–HORN

EFI 30

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.

Multiport fuel injection system/sequential multiport fuel injection system

15 Emergency flashers, horns

247

ELECTRICAL COMPONENTS

No.

FUSE

RADIO

*1 SC300: HEAD (RH)

SC300: HEAD (LH)

NO.1

TEL 15 Telephone ALT

SENCING

ETCS 15 Traction control system HEAD

(RH–LWR)*

HEAD

(LH–LWR)*

DRL 7.5 Daytime Running Light System

HEAD

(RH–LPR)

HEAD

(LH–LPR)

INJ 30

AMPERE

CIRCUIT

Radio, cassette tape player, compact disc player, power

antenna

Charging system

7.5

Right–hand headlight (low beam)

Left–hand headlight (low beam)

Right–hand headlight (high beam)

Left–hand headlight (high beam)

SC300

Starting system

CHECKING BATTERY CONDITION

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.

248

ELECTRICAL COMPONENTS

 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 accidentally 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

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.

249

ELECTRICAL COMPONENTS

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.

Checking battery fluid

Check the battery condition by the hydrometer color.

BLUE – Good condition. WHITE – Charging necessary. Have the battery checked by

your Lexus dealer. RED – Have the battery checked by your Lexus dealer.

NOTICE

Do not refill the battery with water.

250

ELECTRICAL COMPONENTS

BATTERY RECHARGING

PRECAUTIONS

During recharging, the battery is producing hydrogen gas.

Therefore, before recharging:

1. If recharging with the battery installed on the vehicle, be sure to disconnect the ground cable.

2. Make sure the power switch on the recharger is off when connecting the charger cables to the battery and when disconnecting them.

CAUTION

 Always charge the battery in an unconfined area. Do

not charge the battery in a garage or closed room where there is not sufficient ventilation.

 Only do a slow charge (5 A or less). Charging at a

quicker rate is dangerous. The battery may explode causing personal injuries.

NOTICE

Never recharge the battery while the engine is running. Also, make sure all accessories are turned off.

CHECKING AND REPLACING THE

BLADE TYPE FUSES

1. Turn the ignition switch off and open the fuse box lid.

Determine which fuse may be causing the problem. The lid of the fuse box shows the name of the circuit for each fuse.

251

ELECTRICAL COMPONENTS

2. Make sure t h e i noperative component is turned off. Pull the suspected fuse straight out with the pull–out tool and check it. If it has blown, push a new fuse into the clips.

252

a. Look carefully at the fuse. If the thin wire is broken, the fuse has blown. If you are not sure or if it is too dark to see, try replacing the suspected fuse with one of the same value that you know is good.

b. Only install a fuse with the amperage rating designated on the fuse box lid.

If you do not have a spare fuse, in an emergency you can pull out the ”CIG”, ”RADIO NO.1”, ”DOME” or ”HTR” fuse, which may be dispensable for normal driving, and use it if its amperage rating is the same.

If you cannot use one of the same amperage, use one lower than, but as close as possible to, the amperage. If the amperage is lower than that specified, the fuse might blow out again but this does not indicate anything wrong. Be sure to get the correct fuse as soon as possible and return the substitute to its original clips.

ELECTRICAL COMPONENTS

It is a good idea to purchase a set of spare fuses and keep them in your vehicle for emergencies.

If the new fuse immediately blows out, there is a problem with the electrical system. Have your Lexus dealer correct it as soon as possible.

CAUTION

Never use a fuse with a higher amperage rating, or any other object, in place of a fuse. This may cause extensive damage and possibly a fire.

CHECKING THE CARTRIDGE TYPE

FUSES

If the headlights or other electrical components do not work and the blade type fuses are O.K., check the cartridge type fuses. If any of the cartridge type fuses are blown, they must be replaced.

253

ELECTRICAL COMPONENTS

If there is an overload in the circuits from the battery, the fuses are designed to blow before the entire wiring harness is damaged.

NOTICE

Before replacing the fuses, have the cause of electrical overload determined and repaired by your Lexus dealer .

ADDING WASHER FLUID

If the washer tank becomes nearly empty, add washer fluid.

You may use plain water as washer fluid. However, in cold areas where temperatures range below the freezing point, use washer fluid containing antifreeze. This product is available at your Lexus dealer and most auto parts stores. Follow the manufacturer’s directions for how much to mix with water.

CAUTION

Always use a genuine Lexus fuse or equivalent for replacement. Never install an ordinary wire – even for a temporary fix. This may cause extensive damage and possibly a fire.

254

NOTICE

Do not use engine antifreeze or any other substitute because it may damage your vehicle’s paint.

CHECKING THE HEADLIGHT AIM

(For low beam only)

Before checking the headlight aim:

1. Be sure that the body around the headlight is not deformed.

2. Park the vehicle on a level spot.

3. The driver should stay in the driver’s seat so that the vehicle has its normal load (with the tank full).

4. Bounce the vehicle several times.

ELECTRICAL COMPONENTS

To check the headlight aim, check the vertical and horizontal gauges.

1. Look at the beam angle gauge (vertical movement). The bubble of the gauge should not deviate from the center of the gauge by more than two marks on either side of the gauge.

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ELECTRICAL COMPONENTS

2. Look at the beam angle gauge (horizontal movement). The blue mark should not deviate by more than one mark on either side of the gauge.

If the error is over the value specified above, take the vehicle to your Lexus dealer to adjust the headlight aim.

REPLACING LIGHT BULBS

The illustration on the following pages show the locations of light bulbs. If it is necessary to replace a bulb, take your vehicle to your Lexus dealer as soon as possible. Use bulbs with the bulb numbers and wattage ratings given in the table.

CAUTION

Halogen bulbs have pressurized gas inside and require special handling. They can burst or shatter if scratched or dropped. Hold a bulb only by its plastic or metal case. Do not touch the glass part of a bulb with bare hands.

NOTICE

Only use a bulb of the listed type.

Light Bulbs Bulb No. W Type Headlights (low beam) 9006 55 A Headlights (high beam) 9005 65 B Fog lights –––– 55 C Parking lights –––– 5 E Front side marker lights 194 3.8 E Front turn signal lights 1157 NA 27/8 D Rear turn signal lights 1156 27 D

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ELECTRICAL COMPONENTS

Light Bulbs Stop lights 1156 27 D Tail lights –––– 5 E Back–up lights 1156 27 D High mounted stoplight 921 18 E License plate lights –––– 5 E Interior light –––– 10 F Personal lights –––– 8 D Glove box light –––– 1.2 E Door courtesy lights –––– 5 E Footlights –––– 1.2 E V anity lights –––– 3 F Trunk light 194 3.8 E

A: HB4 halogen bulbs B: HB3 halogen bulbs C: H3 halogen bulbs D: Single end bulbs E: Wedge base bulbs F: Double end bulbs

Bulb No. W Type

LIGHT LOCATION

257

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Lexus SC300 2000, SC400 2000, SC430 2000 Owner Manual

Specifications and Main Features

Frequently Asked Questions

User Manual