Page 9 of 34
ELECTRICAL COMPONENTS
448
37 TEL15No circuit
38 TURN±HAZ10Turn signal lights
No.FUSEAMPERECIRCUIT
39 EFI25
Multiport fuel injection
system/sequential multiport fuel
injection system, Emission
control system
40 ALT±S5Charging system
41 RADIO
NO.120Audio
42 DRL NO.230Vehicles with daytime
running light system:
Daytime running light system
43 H±LP L
UPR10
Vehicles without daytime
running light system:
Left±hand headlight (high
beam)
44
H±LP R
UPR10
Vehicles without daytime
running light system:
Right±hand headlight (high
beam)
44
DRL NO.130Vehicles with daytime
running light system:
Daytime running light system
45 H±LP L
LW R15Left±hand headlight (low beam)
46 H±LP R
LW R15Right±hand headlight (low
beam)
Page 10 of 34
ELECTRICAL COMPONENTS
449
47 H±LP R
UPR15
Vehicles with daytime
running light system:
Right±hand headlight (high
beam)
No.FUSEAMPERECIRCUIT
48 H±LP L
UPR15
Vehicles with daytime
running light system:
Left±hand headlight (high
beam)
SPARESpare fuse
Page 11 of 34
ELECTRICAL COMPONENTS
450
CHECKING BATTERY
CONDITION
Precautions
Page 12 of 34
ELECTRICAL COMPONENTS
451
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.
Page 13 of 34
ELECTRICAL COMPONENTS
452
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 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
64G001a
Page 14 of 34
ELECTRICAL COMPONENTS
453
1Terminals 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.
Page 15 of 34
ELECTRICAL COMPONENTS
454
Checking battery fluid
Checking by hydrometer
64G003a
Check the battery condition by the hydrometer
color.
1
BLUE ± Good condition.
2
WHITE ± Charging necessary. Have the battery
checked by your Lexus dealer.
3
RED ± Have the battery checked by your Lexus
dealer.
NOTICE
Do not refill the battery with water.
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.
Page 16 of 34
ELECTRICAL COMPONENTS
455
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, be sure all accessories are turned
off.
CHECKING AND REPLACING
THE BLADE TYPE FUSES