2003 TOYOTA COROLLA brake

’03 Corolla U (L/O 0201)
2052003 MY COROLLA_U (OM12744U)
Do not reuse iridiumtipped spark
plugs by cleaning or regapping.
 Do not overfill automatic transmis-
sion fluid, or the transmission
could be damaged.
 Do not drive with the air cleaner
filter removed, or excessive engine
wear could result. Also backfiring
could cause a fire in the engine
compartment.
 Be careful not to scratch the glass
surface with the wiper frame.
 When closing the engine hood,
check to see that you have not for-
gotten any tools, rags, etc.
Front
Rear
When jacking up your vehicle with the
jack, position the jack correctly as
shown in the illustrations.
CAUTION
When jacking, be sure to observe the
following to reduce the possibility of
personal injury:
Follow jacking instructions.
Do not put any part of your body
under the vehicle supported by the
jack. Personal injury may occur.
Do not start or run the engine while
your vehicle is supported by the
jack.
Stop the vehicle on a level firm
ground, firmly set the parking brake
and put the transmission in “P”
(automatic) or reverse (manual).
Block the wheels on the opposite
side of the jack up point if neces-
sary.
Make sure to set the jack properly
in the jack point. Raising the ve-
hicle with jack improperly posi-
tioned will damage the vehicle or
may allow the vehicle to fall off the
jack and cause personal injury.
Positioning the jack

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2062003 MY COROLLA_U (OM12744U)
Never get under the vehicle when
the vehicle is supported by the jack
alone; use vehicle support stands.
Do not raise the vehicle with some-
one in the vehicle.
When raising the vehicle, do not
place any objects on top of or un-
derneath the jack.
NOTICE
Make sure to place the jack correctly,
or your vehicle may be damaged.
Here is a list of parts and tools you will
need on performing doityourself mainte-
nance. Remember all Toyota parts are de-
signed in metric sizes, so your tools must
be metric.
CHECKING THE ENGINE OIL LEVEL
Parts (if level is low):
Engine oil API grade SL
“EnergyConserving” or ILSAC
multigrade having viscosity proper for
your climate
Tools:
Rag or paper towel
Funnel (only for adding oil)
CHECKING THE ENGINE COOLANT
LEVEL
Parts (if level is low):
“TOYOTA Long Life Coolant” or equiva-
lent
See page 211 in Section 72 for details
about coolant type selection.
Demineralized or distilled water
Tools:
Funnel (only for adding coolant) CHECKING BRAKE FLUID
Parts (if level is low):
SAE J1703 or FMVSS No.116 DOT 3
brake fluid
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING POWER STEERING FLUID
Parts (if level is low):
Automatic transmission fluid
DEXRON II or III
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING BATTERY CONDITION
Tools:
Warm water
Baking soda
Grease
Conventional wrench (for terminal
clamp bolts)
CHECKING AND REPLACING FUSES
Parts (if replacement is necessary):
Fuse with same amperage rating as
original
Parts and tools

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2092003 MY COROLLA_U (OM12744U)
DOITYOURSELF MAINTENANCE
Engine and Chassis
Checking the engine oil level210
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Checking the engine coolant level 211
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Checking the radiator and condenser r212
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Checking brake fluid 213
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Checking power steering fluid 213
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Checking tire pressure 214
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. .
Checking and replacing tires 215
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Rotating tires 216
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Installing snow tires and chains 217
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Replacing wheels 218
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Aluminum wheel precautions 219
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SECTION 7 2

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2132003 MY COROLLA_U (OM12744U)
To check the fluid level, simply look at
the seethrough reservoir. The level
should be between the “MAX” and
“MIN” lines on the reservoir.
It is normal for the brake fluid level to go
down slightly as the brake pads wear. So
be sure to keep the reservoir filled.
If the reservoir needs frequent refilling, it
may indicate a serious mechanical prob-
lem. If the level is low, add SAE J1703 or
FMVSS No.116 DOT 3 brake fluid to the
brake reservoir.
Remove and replace the reservoir cap by
hand. Fill the brake fluid to the dotted
line. This brings the fluid to the correct
level when you put the cap back on.
Use only newly opened brake fluid. Once
opened, brake fluid absorbs moisture from
the air, and excess moisture can cause a
dangerous loss of braking.
CAUTION
Take care when filling the r
eservoir
because brake fluid can harm your
eyes and damage painted surfaces. If
fluid gets in your eyes, flush your
eyes with clean water immediately. If
you still feel uncomfortable with your
eyes, go to the doctor.
NOTICE
If you spill some of the fluid, be sure
to wash it off with water to prevent
it from damaging the parts or paint.
If cold O.K.
If cold add If hot O.K.
If hot add
Close
Open
Check the fluid level through the reser-
voir. If necessary, add automatic trans-
mission fluid DEXRON
 II or III.
If the vehicle has been driven around 80
km/h (50 mph) for 20 minutes (a little
more in frigid temperatures), the fluid is
hot (60 C—80 C or 140 F—175 F). You
may also check the level when the fluid
is cold (about room temperature,
10 C—30 C or 50 F—85 F) if the engine
has not been run for about five hours.
Checking brake fluid Checking power steering fluid

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2182003 MY COROLLA_U (OM12744U)
NOTICE
Do not attempt to use a tire chain on
the compact spare tire, as it may re-
sult in damage to the vehicle as well
as the tire.
WHEN TO REPLACE YOUR WHEELS
If you have wheel damage such as
bending, cracks or heavy corrosion, the
wheel should be replaced.
If you fail to replace damaged wheels, the
tire may slip off the wheel or cause loss
of handling control.
WHEEL SELECTION
When replacing wheels, care should be
taken to ensure that the wheels are re-
placed by ones with the same load ca-
pacity, diameter, rim width, and offset.
This must be observed on compact spare
tire, too.
Correct replacement wheels are available
at your Toyota dealer.
A wheel of a different size or type may
adversely affect handling, wheel and bear-
ing life, brake cooling, speedometer/odom-
eter calibration, stopping ability, headlight
aim, bumper height, vehicle ground clear-
ance, and tire or snow chain clearance to
the body and chassis. Replacement with used wheels is not rec-
ommended as they may have been sub-
jected to rough treatment or high mileage
and could fail without warning. Also, bent
wheels which have been straightened may
have structural damage and therefore
should not be used. Never use an inner
tube in a leaking wheel which is designed
for a tubeless tire.
Replacing wheels

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MANUAL TRANSAXLE
Oil capacity, L (qt., Imp. qt.):1.9 (2.0, 1.7)
Oil type: Gear oil API GL4 or GL5
Recommended oil viscosity: SAE 75W90
AUTOMATIC TRANSAXLE
Fluid capacity (drain and ref ill),
L (qt., Imp. qt.):
Up to 3.1 (3.3, 2.7)
Fluid type: Automatic transmission fluid Type TIV
Change automatic transmission fluid only
as necessary.
Generally, it is necessary to change
automatic transmission fluid only if your
vehicle is driven under one of the Special
Operating Conditions listed in your
“Scheduled Maintenance Guide” or
“Owner ’s Manual Supplement”. When
changing the automatic transmission fluid,
use only Toyota Genuine ATF Type TIV
(ATF JWS3309 or NWS6500) to aid in
assuring optimum transaxle performance. Notice: Using automatic transmission
fluid other than Toyota Genuine ATF
Type TIV may cause deterioration in
shift quality, locking up of your trans-
mission accompanied by vibration, and
ultimately damage the automatic trans-
mission of your vehicle.
BRAKES
Minimum pedal clearance when depressed
with the force of 490 N (50 kgf, 110 lbf)
with the engine running, mm (in.):
70 (2.8)
Pedal free play, mm (in.): 1—6 (0.04—0.24)
Pad wear limit, mm (in.): 1.0 (0.04)
Lining wear limit, mm (in.): 1.0 (0.04)
Parking brake adjustment when pulled with
the force of 196 N (20 kgf, 44 lbf): 6—9 clicks
Fluid type: SAE J1703 or FMVSS No.116 DOT 3 STEERING
Wheel free play:
Less than 30 mm (1.2 in.)
Power steering fluid type: Automatic transmission fluid DEXRON II
or III

’03 Corolla U (L/O 0201)
2382003 MY COROLLA_U (OM12744U)
Instrument panel
Fuses (type A)1. FOG 15 A: Front fog lights
2. HEAD LH UPR 10 A: Lefthand head-
light (high beam)
3. HEAD RH UPR 10 A: Righthand
headlight (high beam), high beam indi-
cator light
4. SPARE 30 A: Spare fuse
5. SPARE 15 A: Spare fuse
6. SPARE 10 A: Spare fuse
7. MAIN 30 A: Starting system, “AM2”
fuse 8. DOME 15 A:
Car audio system, clock,
personal lights, interior light, trunk light,
open door warning light, wireless re-
mote control system
9. HORN 10 A: Horn
10. HAZARD 10 A: Emergency flashers ,
turn signal lights
11. EFI 15 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, emission control system
12. ALTS 5 A: Charging system
13. HEAD LH LWR 10 A: Lefthand head-
light (low beam)
14. HEAD RH LWR 10 A: Righthand
headlight (low beam)
15. TAIL 15 A: Tail lights, license plate
lights, instrument panel lights , instru-
ment cluster lights
16. OBD 7.5 A: Onboard diagnosis sys-
tem
17. WIPER 25 A: Windshield wipers
18. AM2 15 A: Charging system, multiport
fuel injection system/sequential multi-
port fuel injection system, starting sys-
tem, SRS airbag system 19. STOP 15 A:
Stop lights, high mounted
stoplight, antilock brake system, shift
lock control system, engine control sys-
tem, cruise control system
20. DOOR 25 A: Power door lock system
21. AM1 25 A: “CIG” fuse
22. ECUIG 10 A: Electric cooling fan,
antilock brake system, shift lock con-
trol system, cruise control system
23. RR WIPER 15 A: No circuit
24. A/C 10 A: Air conditioning system
25. INV 15 A: No circuit
26. P/POINT 15 A: Power outlet (in the
rear console box)
27. ECUB 10 A: Daytime running light
system
28. CIG 15 A: Power outlet (on the instru-
ment panel) or cigarette lighter, car au-
dio system, clock, power rear view mir-
ror control, shift lock control system
29. GAUGE 10 A: Gauges and meters, air
conditioning system, daytime running
light system, charging system, auto
antiglare inside rear view mirror, pow-
er windows, cruise control system, rear
window defogger, backup lights, front
passenger ’s seat belt reminder light

’03 Corolla U (L/O 0201)
2392003 MY COROLLA_U (OM12744U)
30. WASHER 15 A: Windshield washer
31. MHTR/DEF IUP 10 A: Engine control
system
Fuses (type B)
32. ABS NO.1 30 A: Antilock brake sys-
tem
33. RDI FAN 30 A: Electric cooling fan
34. ABS NO.2 40 A: Antilock brake sys-
tem
35. HEAD MAIN 40 A: “HEAD LH UPR”,
“HEAD RH UPR”, “HEAD LH LWR” and
“HEAD RH LWR” fuses
36. HTR 40 A: Air conditioning system
37. DEF 40 A: Rear window defogger,
“MHTR/DEF IUP” fuse
38. POWER 30 A: Power windows, electric
moon roof
Fuses (type C)
39. ALT 100 A: Charging system, “ABS
NO.1”, “ABS NO.2”, “RDI FAN”, “FOG”,
“HTR”, “AM1”, “POWER”, “DOOR”,
“ECUB”, “TAIL”, “STOP”, “P/POINT”,
“INV” and “OBD” fuses