1994 Lexus ES300 battery

SECTION 6 – 4
197
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications198 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking battery condition
202 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions
204 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses
204 . . . . . . . . . . . . . . . .
Checking the cartridge type fuses206 . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the windshield wiper blades207 . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the headlight aim210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs211 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ELECTRICAL COMPONENTS
202
NO.FUSEAMPERECIRCUIT
25HEAD
(LH) HI15
Vehicles sold in the U.S.A.
Left-hand headlight
Vehicles sold in Canada
Left-hand headlight
(high beam)
26HEAD
(RH) HI15
Vehicles sold in the U.S.A.
Right-hard headlight
Vehicles sold in Canada
Right-hand headlight
(high beam)
27ALT100Charging system
28ABS60Anti-lock brake system
29HEAD(LWR-LH)15
Vehicles sold in Canada
Left-hand headlight
(low beam)
30HEAD(LWR-RH)15
Vehicles sold in Canada
Right-hand headlight
(low beam)
31FOG15Fog lights
32RADIO20
Radio, cassette tape player,
compact disc player, power
antenna
33DRL7.5Vehicles sold in Canada
Daytime Running Light System
34HTR40Environmental control system
*SPASpare fuse
CHECKING BATTERY CONDITION
CAUTION:
BATTERY PRECAUTIONS
The battery produces a 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
Hold-down clamp
Blue
White
Red
203
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.

Take care no solution gets into the battery when
washing it.
2. Check the hydrometer as shown.
BLUE − Good condition.
WHITE − Charging necessary. Have the battery checked by
your Lexus dealer.
RED − Have the battery checked by your Lexus dealer.

ELECTRICAL COMPONENTS
Pull-out toolEngine compartment
Spare fuses
Passenger’s side kick panel
204
NOTICE:

Your Lexus has a maintenance free battery. Do not
refill the battery with water.

Use a cover on the battery for longer life.
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. 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 not sufficient ventilation.

Only do a slow charge (5A or less). Charging at a
quicker rate is dangerous.
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
GoodBlown
GoodBlown
ELECTRICAL COMPONENTS
Rest position
Retracted position
207 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, and require 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 windshield until it stands up.