1992 Lexus ES300 battery

SECTION 6 – 4
189
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications190 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking battery condition and fluid level
194 . . . . . . . . . . . . . . . . . . .
Battery recharging precautions
196 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses
196 . . . . . . . . . . . . . . . .
Checking the cartridge type fuses198 . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the windshield wiper blades199 . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the headlight aim202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs203 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ELECTRICAL COMPONENTS
194
NO.FUSEAMPERECIRCUIT
23AM230Ignition system, electronic
fuel injection system
24ALT100Charging system
25ABS60Anti-lock brake system
26HEAD
(LWR-LH)15
Vehicles sold in Canada
Left-hand headlight
(low beam)
27HEAD
(LWR-RH)15
Vehicles sold in Canada
Right-hand headlight
(low beam)
28TEL15Telephone
29RADIO20
Radio, cassette tape player,
compact disc player, power
antenna
30DRL7.5Daytime running light system
31HTR40Environmental control
system
CHECKING BATTERY
CONDITION AND FLUID LEVEL
CAUTION:
BATTERY PRECAUTIONS
The battery produces an 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.

ELECTRICAL COMPONENTS
Terminals
Extended maintenance
interval batteryHold - down clamp
Red
White
Blue
Indicator
Vent plug
Electrolyte (clear fluid)
must be between
upper and lower lines
195
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.
1. Check the battery for corroded or loose connections,
cracks, or loose hold-down clamps.
a. 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.
b. If the connections are loose, tighten the clamp bolts−but do
not overtighten.
c. Tighten the hold-down clamp only enough to keep the
battery firmly in place. Overtightening may damage the battery
case.
NOTICE:

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

Remove the ground cable first and reinstall last.

Be careful not to cause a short circuit with tools.
2. Check the indicator as shown.
RED − Add distilled water
WHITE − Charging necessary.
BLUE − Good condition.
If the indicator is red, check the electrolyte level as shown.
a. When checking the electrolyte level, look at all six cells, not
just one or two.
b. Remove the vent plugs and replenish the battery with
distilled water.
c. After replenishing, be sure to securely retighten the vent
plugs.

ELECTRICAL COMPONENTS
Engine compartmentPull-out tool
Spare fuses
Passenger’s side kick panel
196
NOTICE:

Do not overfill the battery, or the electrolyte may
squirt out of the battery during periods of heavy
charging, causing corrosion or damage.

Use a cover on the battery for longer life.
BATTERY RECHARGING
PRECAUTIONS
During recharging, the battery is producing hydrogen
gas.
Therefore, before recharging:
1. Remove the vent plugs.
2. If recharging with the battery installed on the vehicle, be
sure to disconnect the ground cable.
3. Be 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 insufficient ventilation.
NOTICE:
Never recharge the battery while the engine is running.
Also, be sure all accessories are turned off.
CHECKING AND REPLACING
THE BLADE TYPE FUSES

Type A
Type B
Good
Good
Blown
Blown
ELECTRICAL COMPONENTS
Rest position
Restracted position
199 If there is an overload in the circuits from the battery, the fuses
are designed to melt 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.
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.
REPLACING THE WINDSHIELD
WIPER BLADES
When the wipers no longer clean adequately, the wiper
blades may be worn or cracked, requiring replacement.
Before replacement
Make sure whether the wiper blades are at the rest
position or at the retracted position.
If at the rest position---
Swing the wiper arm away from the windshield until it stands
up.