Power window, Electronic moon roof, Power
seat system
218
ELECTRICAL COMPONENTS
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.
If electrolyte gets on your skin, thoroughly wash the contacted 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.
219
ELECTRICAL COMPONENTS
Checking battery exterior
64E007
1
Terminals 2Hold–down clamp
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.
Checking battery fluid
There are 2 types of batteries: maintenance type and non–maintenance
type.
A non–maintenance battery has ”MAINTENANCE FREE BATTERY” on its
top. A maintenance type battery does not have such indication.
Maintenance type battery
Check the fluid condition by the fluid level lines on the side of the battery . Or
if the battery has a hydrometer on its top, you can also check the hydrometer.
Non–maintenance battery
Check the battery condition by the hydrometer on the top of the battery.
220
ELECTRICAL COMPONENTS
(a) Checking by the fluid level lines (Maintenance type battery only)
64E008
1
Upper line 2Lower line
The fluid (electrolyte) level must be between the upper and lower lines.
When checking the fluid level, look at all six cells, not just one or two.
If the level is lower than the lower line, add distilled water. (See ”Adding
distilled water” on page 222.)
(b) Checking by the hydrometer
64E009
Check the battery condition by the hydrometer color.
Maintenance type battery
1
RED – Add distilled water. (See ”Adding distilled water” on page 222.)
2
BLUE – Good condition.
3
WHITE – Charging necessary. Have the battery checked by your Lexus
dealer.
Non–maintenance type battery
1
RED – Have the battery checked by your Lexus dealer.
2
BLUE – Good condition.
3
WHITE – Charging necessary. Have the battery checked by your Lexus
dealer.
221
ELECTRICAL COMPONENTS
NOTICE
(For non–maintenance battery):
Do not refill the battery with water.
Adding distilled water
(Maintenance type battery only)
64L062
1
Low 2O.K.
1. Remove the vent plugs.
2. Add distilled water to cells needing fluid.
If the side of your battery is covered, check the water level by looking down
directly above the cell as illustrated above.
3. Retighten the vent plugs securely.
NOTICE
Do not overfill the cells. Excess electrolyte could squirt out of the
battery during heavy charging, causing corrosion or damage.
Use a cover on the battery for longer life.
222
ELECTRICAL COMPONENTS
BATTERY RECHARGING PRECAUTIONS
During recharging, the battery is producing hydrogen gas.
Therefore, before recharging:
1. Maintenance type batteries – Remove the vent plugs.
2. If recharging with the battery installed on the vehicle, be sure to disconnect
the ground cable.
3. 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.
Non–maintenance batteries: Only do a slow charge (5 A or
less). Charging at a quicker rate is dangerous. The battery
may explode causing personal injuries.
Maintenance type batteries: Be sure to remove the vent
plugs before recharging.
NOTICE
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.
223
ELECTRICAL COMPONENTS
CHECKING AND REPLACING THE
BLADE TYPE FUSES
64E027
64E029–2
64E013
Driver’s side instrument panel
1. Turn the ignition switch off and remove the auxiliary box.
Determine which fuse may be causing the problem. The auxiliary box shows
the name of the circuit for each fuse.
Engine compartment
224
1
Pull–out tool 2Spare fuses
64L013
2. Make sure the inoperative 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.
ELECTRICAL COMPONENTS
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 ”RAD
NO.1”, ”RAD NO.2” or ”PWR OUTLET” 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.
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.
64L014
GoodBlown
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.
225
ELECTRICAL COMPONENTS
CHECKING THE CARTRIDGE TYPE
FUSES
64E011–1
64E015–1
64E014
Driver’s side instrument panel
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.
Engine compartment
226
64E016
1
Type A 2Type B 3Good 4Blown
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.
ELECTRICAL COMPONENTS
ADDING WASHER FLUID
64E017–1
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.
NOTICE
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.
Do not use engine antifreeze or any other substitute because it may
damage your vehicle’s paint.
227
ELECTRICAL COMPONENTS
CHECKING THE HEADLIGHT AIM
64E018–1
1
Beam angle gauge (horizontal movement)
2
Beam angle gauge (vertical movement)
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 gets into the driver’s seat and puts the vehicle in a state readying
for a driving (with a full tank).
4. Bounce the vehicle several times.
64E019
1
Bubble 2Acceptable range
Vertical movement gauge: The bubble of the gauge should not deviate from
the center of the gauge by more than two marks to either side of the gauge.
228
64E020–1
1
Arrow head 2Acceptable range
Horizontal movement gauge: The arrow head should not deviate by more
than one mark to 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.
ELECTRICAL COMPONENTS
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.
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 T oyota 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,
W ashington. D . C . 20590. You can also obtain other information
about motor vehicle safety from the Hotline.