2003 TOYOTA COROLLA Owners Manual

’03 Corolla U (L/O 0201)
2212003 MY COROLLA_U (OM12744U)
DOITYOURSELF MAINTENANCE
Electrical components
Checking battery condition222
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Battery recharging precautions 223
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Checking and replacing fuses 224
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Adding washer fluid 225
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Replacing light bulbs 225
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. . . .
SECTION 7 3

’03 Corolla U (L/O 0201)
2222003 MY COROLLA_U (OM12744U)
CAUTION
BATTERY PRECAUTIONS
The battery produces flammable and
explosive hydrogen gas.
Do not cause a spark from the bat-
tery 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 ingest electrolyte.
Wear protective safety glasses when
working near the battery.
Keep children away from the bat-
tery.
EMERGENCY MEASURES
If electrolyte gets in your eyes,
flush your eyes with clean water
immediately and get immediate
medical attention. If possible, con-
tinue to apply water with a sponge
or cloth while en route to the medi-
cal office.
If electrolyte gets on your skin,
thoroughly wash the contact area. If
you feel pain or burning, get medi-
cal attention immediately.
If electrolyte gets on your clothes,
there is a possibility of its soaking
through to your skin, so immediate-
ly take off the exposed clothing and
follow the procedure above, if nec-
essary.
If you accidentally swallow electro-
lyte, drink a large quantity of water
or milk. Follow with milk of magne-
sia, beaten raw egg or vegetable
oil. Then go immediately for emer-
gency help.
Warning: Battery posts, terminals
and related accessories contain lead
and lead compounds, chemicals
known to the State of California to
cause cancer and reproductive
harm. Wash hands after handling.
Terminals
Holddown
clamp Ground cable
Check the battery for corroded or loose
terminal connections, cracks, or loose
holddown clamp.
a. If the battery is corroded, wash it off with a solution of warm water and bak-
ing soda. Coat the outside of the termi-
nals with grease to prevent further cor-
rosion.
b. If the terminal connections are loose, tighten their clamp nuts—but do not
overtighten.
c. Tighten the holddown clamp only enough to keep the battery firmly in
place. Overtightening may damage the
battery case.
Checking battery c ondition—
—Precautions —Checking battery exterior

’03 Corolla U (L/O 0201)
2232003 MY COROLLA_U (OM12744U)
NOTICE
Be sure the engine and all accesso-
ries are off before performing main-
tenance.
 When checking the battery, remove
the ground cable from the negative
terminal (“” mark) first and rein-
stall it last.
 Be careful not to cause a short cir-
cuit with tools.
 Take care no solution gets into the
battery when washing it.
Ty p e A
Green Dark Clear or
light yellow
Ty p e B Blue White Red
CHECKING BY INDICATOR
Check the battery condition by the indi-
cator color.
Indicator color
ConditionTy p e ATy p e B
GreenBlueGood
DarkWhite
Charging necessary.
Have battery
checked by your
Toyota dealer.
Clear orlight
yellow
Red
Have battery
checked by your
Toyota dealer.
During recharging, the battery is pro-
ducing 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 re- charger is off when connecting the
charger cables to the battery and when
disconnecting them.
CAUTION
Always charge the battery in an un-
confined area. Do not charge the
battery in a garage or closed room
where there is not sufficient ventila-
tion.
Only do a slow charge (5 A or
less). Charging at a quicker rate is
dangerous. The battery may ex-
plode, causing personal injuries.
NOTICE
Never recharge the battery while the
engine is running. Also, be sure all
accessories are turned off.
—Checking battery c ondition Battery recharging pr ecautions

’03 Corolla U (L/O 0201)
2242003 MY COROLLA_U (OM12744U)
Ty p e AGood Blown
Ty p e B
Good Blown
Ty p e C
Good Blown
If the headlights or other electrical
components do not work, check the
fuses. If any of the fuses are blown,
they must be replaced.
See “Fuse locations” on page 203 in Sec-
tion 71 for locations of the fuses.
Turn the ignition switch and inoperative
component off. Pull a suspected fuse
straight out and check it.
Determine which fuse may be causing the
problem. The lid of the fuse box shows
the name of the circuit for each fuse. See
page 237 in Section 8 of this manual for
the functions controlled by each circuit. Type A fuses can be pulled out by the
pullout tool. The location of the pullout
tool is shown in the illustration.
If you are not sure whether the fuse has
blown, try replacing the suspected fuse
with one that you know is good.
If the fuse has blown, push a new fuse
into the clip.
Only install a fuse with the amperage rat-
ing designated on the fuse box lid.
If you do not have a spare fuse, in an
emergency you can pull out the “A/C” or
“P/POINT” 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 amper-
age, use one that is lower, but as close
as possible to, the rating. 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 clip.
It is a good idea to purchase a set of
spare fuses and keep them in your ve-
hicle for emergencies.
Checking and replacing fuses

’03 Corolla U (L/O 0201)
2252003 MY COROLLA_U (OM12744U)
If the new fuse immediately blows out,
there is a problem with the electrical sys-
tem. Have your Toyota dealer correct it as
soon as possible.
CAUTION
Never use a fuse with a higher am-
perage rating, or any other object, in
place of a fuse. This may cause ex-
tensive damage and possibly a fire.
If any washer does not work or low
windshield washer fluid level warning
light* comes on, the washer tank may
be empty. Add washer fluid.
You may use plain water as washer fluid.
However, in cold areas where tempera-
tures range below freezing point, use
washer fluid containing antifreeze. This
product is available at your Toyota dealer
and most auto parts stores. Follow the
manufacturer ’s directions for how much to
mix with water.
NOTICE
Do not use engine antifreeze or any
other substitute because it may dam-
age your vehicle’s paint.
*: When equippedThe following illustrations show how to
gain access to the bulbs. When replacing
a bulb, make sure the ignition switch and
light switch are off. Use bulbs with the
wattage ratings given in the table.
CAUTION
To prevent from burning yourself,
do not replace the light bulbs while
they are hot.
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.
Adding washer fluid
Replacing light bulbs—

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2262003 MY COROLLA_U (OM12744U)
The inside of the lens of exterior lights
such as headlights may temporarily fog up
when the lens becomes wet in the rain or
in a car wash. This is not a problem
because the fogging is caused by the
temperature difference between the outside
and inside of the lens, just like the
windshield fogged up in the rain. However,
if there is a large drop of water on the
inside of the lens, or if there is water
pooled inside the light, contact your
Toyota dealer.Light bulbsBulb
No.WTy p e
Headlights
(high beam)900560A
Headlights
(low beam)900655B
Parking/front side
marker/front turn
signal lights
3157A27/8C
Front fog lights—55D
Rear side marker
and stop/tail lights315727/8E
Rear turn signal
lights315627E
Backup lights92118E
High mounted
stoplight92118E
License plate lights—5E
Interior light—8F
Light bulbsBulbNo.WTy p e
Personal light
(on the switch
panel of the electric
moon roof)
—10G
Personal lights
(on the inside rear
view mirror without
compass)
1924.3E
Trunk light1684.9E
A: HB3 halogen bulbs
B: HB4 halogen bulbs
C: Wedge base bulbs (amber)
D: H3 halogen bulbs
E: Wedge base bulbs (clear)
F: Double end bulbs
G: Single end bulbs

’03 Corolla U (L/O 0201)
2272003 MY COROLLA_U (OM12744U)
1. Open the hood.LEFTHAND HEADLIGHT: Remove the
clip with a Phillipshead screwdriver
and move the air cleaner duct as
shown in the illustration.
Remove and install the clip as shown in
the following illustrations.Removing clip
Installing clip
Low beam
(outside) High beam
(inside)
2. Turn the bulb base counterclockwise
to the front of the vehicle as shown.
—Headlights

’03 Corolla U (L/O 0201)
2282003 MY COROLLA_U (OM12744U)
3. Unplug the connector while depress-ing the lock release.
If the connector is tight, wiggle it.4. Install a new bulb and connectorinto the mounting hole.
Aiming is not necessary after replacing
the bulb. When aiming adjustment is nec-
essary, contact your Toyota dealer.
—Parking/front side
marker/front turn signal lights